4W6012 PUMP GP-FUEL INJECTION-PART 1 OF 2 TYPE 1 4W0101-PAGE 72, 7N4574-PAGE 73 PART OF 2W8961 PUMP-GOVERNOR, FUEL INJECTION & TRANSFER 631E

Truck Engine News

Pos.	Part No	Qty	Parts name
1.	9N-3847	[1]	CAMSHAFT-FUEL PUMP
2.	8N-6981	[8]	LIFTER AS
3.	9S-4191	[1]	PLUG-O-RING
	3J-1907	[1]	SEAL
4.	7N-4574 Y	[1]	HOUSING AS-PUMP
5.	8H-9204	[8]	WASHER-FELT
6.	2M-4314	[8]	BUSHING
7.	9S-8008	[2]	PLUG-O-RING
	3D-2824	[2]	SEAL-O-RING
8.	1T-0284	[1]	BOLT-SOCKET HEAD
9.	7N-2694	[1]	BRACKET AS-CONTROL
10.		[1]	PIN
11.	7N-2693	[1]	SPRING-TORSION
12.	4N-1572	[1]	LINK-RACK
13.	4N-0900	[1]	RACK-REGULATING RH
	4N-0901	[1]	RACK-REGULATING LH
14.	3D-2992	[8]	SEAL
15.	4W-0101 Y	[8]	PUMP GP-FUEL INJECTION
16.	5M-2697 B	[8]	SPACER 4.32MM(.170IN)THK
	2M-4208	[8]	SPACER 4.42MM(.174IN)THK
	2M-4209	[8]	SPACER 4.52MM(.178IN)THK
	2M-4210	[8]	SPACER 4.62MM(.182IN)THK
	2M-4211	[8]	SPACER 4.72MM(.186IN)THK
	2M-4212	[8]	SPACER 4.83MM(.190IN)THK
	5M-2691	[8]	SPACER 4.93MM(.194IN)THK
	5S-7189	[8]	SPACER 5.03MM(.198IN)THK
	B		USE AS REQUIRED
	Y		SEPARATE ILLUSTRATION

Pos.	Part No	Qty	Parts name
17.	4N-0824	[1]	VALVE AS-BYPASS
	7L-8696	[1]	SPRING-BYPASS
18.	3K-0360	[1]	SEAL-O-RING
19.	8N-0561	[1]	GEAR IDLER-9 TEETH
20.	6N-7695	[1]	COVER-OIL PUMP
	6L-5897	[2]	BOLT
21.	6N-4165	[1]	PINION AS-GOVERNOR DRIVE
22.	6N-4090	[1]	DOWEL
23.	8N-0560	[1]	GEAR (DRIVE-11 TEETH)
24.	0S-1618	[3]	BOLT
25.	5M-6214	[1]	PLUG-PIPE
26.	5F-9144	[1]	SEAL-O-RING
27.	4N-0905	[1]	GEAR-BEVEL (42 TEETH)
28.	4N-0776	[1]	RETAINER

Pos.	Part No	Qty	Parts name
1.	5M-2697 B	[8]	SPACER (4.32MM THK)
	2M-4208 B	[8]	SPACER (4.42MM THK)
	2M-4209 B	[8]	SPACER (4.52MM THK)
	2M-4210 B	[8]	SPACER (4.62MM THK)
	2M-4211 B	[8]	SPACER (4.72MM THK)
	2M-4212 B	[8]	SPACER (4.83MM THK)
	5M-2691 B	[8]	SPACER (4.93MM THK)
	5S-7189 B	[8]	SPACER (5.03MM THK)
2.	8N-6981	[8]	LIFTER AS
3.	9S-4191	[1]	PLUG-O-RING
	3J-1907	[1]	SEAL
4.	7N-4574 Y	[1]	HOUSING AS-PUMP
5.	8H-9204	[8]	WASHER-FELT
6.	7E-5085	[8]	BUSHING
7.	9S-8008	[2]	PLUG-O-RING
	3D-2824	[2]	SEAL-O-RING
8.	1T-0284	[1]	BOLT-SOCKET HEAD
9.	7N-2694	[1]	BRACKET AS-CONTROL
10.	6N-6955	[1]	PIN
11.	7N-2693	[1]	SPRING-TORSION
12.	4N-1572	[1]	LINK-RACK
13.	4N-0900	[1]	RACK-REGULATING RH
	4N-0901	[1]	RACK-REGULATING LH
14.	7E-4846	[8]	SEAL-O-RING
15.	7W-0561 Y	[8]	PUMP GP-FUEL INJECTION
16.	4W-8140 C	[1]	CAMSHAFT-FUEL PUMP
	B		USE AS REQUIRED
	C		CHANGE FROM PREVIOUS TYPE
	Y		SEPARATE ILLUSTRATION

Pos.	Part No	Qty	Parts name
17.	4N-0824	[1]	VALVE AS-BYPASS
	7L-8696	[1]	SPRING-BYPASS
18.	3K-0360	[1]	SEAL-O-RING
19.	8N-0561	[1]	GEAR (IDLER-9 TEETH)
20.	6N-7695	[1]	COVER-OIL PUMP
	6L-5897	[2]	BOLT
21.	6N-4165	[1]	PINION AS-GOVERNOR DRIVE
22.	6N-4090	[1]	DOWEL
23.	8N-0560	[1]	GEAR (DRIVE-11 TEETH)
24.	0S-1618	[3]	BOLT
25.	5M-6214	[1]	PLUG-PIPE
26.	5F-9144	[1]	SEAL-O-RING
27.	4N-0905	[1]	GEAR-BEVEL (42 TEETH)
28.	4N-0776	[1]	RETAINER

Pos.	Part No	Qty	Parts name
1.	1W-9171	[1]	BONNET-VALVE
2.	8N-1415	[1]	SPRING-CHECK
3.	1W-6987	[1]	VALVE AS-CHECK
4.	7W-1927	[1]	RING-RETAINER
5.	7W-0182	[1]	PLUNGER & BARREL AS
6.	7C-5278 C	[1]	BOLT-GEAR
7.	7N-1066 C	[1]	WASHER-RETAINER
	C		CHANGE FROM PREVIOUS TYPE

Pos.	Part No	Qty	Parts name
1.	1W-9171	[1]	BONNET-VALVE
2.	8N-1415	[1]	SPRING-CHECK
3.	1W-6987	[1]	VALVE AS-CHECK
4.	1M-3506	[1]	RING-RETAINER
5.	7N-1208	[1]	SPRING-LIFTER
6.	7N-1066	[1]	WASHER-RETAINER
7.	6N-7828	[1]	PLUNGER AS-FUEL PUMP
8.	8H-9299	[1]	SCREW-PLUNGER GEAR

Pos.	Part No	Qty	Parts name
1.	6N-7266	[1]	SHAFT-PUMP IDLER
2.	7N-0242	[2]	BEARING-SLEEVE
3.	5B-9318	[1]	BALL
4.	4N-0775	[2]	DOWEL-HOLLOW
5.	8L-6565	[1]	PIN-SPRING
6.	9S-4160	[2]	BEARING-SLEEVE
7.	4M-1474	[4]	PIN-LIFTER GUIDE
8.	9L-9766	[2]	PIN-PLUNGER LIFT
9.	6N-8441	[2]	BEARING-SLEEVE
10.	4N-0899	[1]	DOWEL-HOLLOW
11.	1P-0232	[8]	BALL
	1P-0234	[8]	DOWEL
12.	4N-0952 C	[1]	PLUG-CUP
	C		CHANGE FROM PREVIOUS TYPE

Pos.	Part No	Qty	Parts name
1.	2B-2694	[3]	BOLT
2.	4N-1116	[1]	SHAFT AS-PUMP
3.	4N-1119	[1]	GEAR-TRANSFER PUMP (10 T)
4.	6V-8977	[1]	SEAL-LIP TYPE
5.	5J-5314	[3]	BOLT
6.	7N-6128	[1]	COVER-TRANSFER PUMP
7.	7M-7260 B		LIQUID GASKET
8.	4W-5476	[1]	BODY AS-TRANSFER PUMP
9.	7S-4433	[1]	FERRULE
10.	1P-2298	[1]	VALVE AS
11.	8F-6058	[1]	BEARING
12.	5P-9294	[1]	SEAL-LIP TYPE
13.	4N-7357	[1]	BEARING-SLEEVE
14.	6V-8977	[1]	SEAL-LIP TYPE
15.	1W-6177	[1]	SHAFT-IDLER
16.	8S-1925	[1]	GEAR-SHAFT DRIVE (11 T)
17.	3H-1489	[1]	KEY-WOODRUFF
18.	2F-8616	[1]	NUT-SELF LOCKING
19.	6J-2419	[1]	SEAL-O-RING
20.	4N-1119	[1]	GEAR-TRANSFER PUMP (10 T)
21.	7S-4440	[1]	BOLT-RETAINING
	4N-7465	[1]	GASKET
22.	6N-1069	[1]	SPRING
23.	2W-3294	[1]	PLUNGER AS-VALVE
24.	3K-8460	[1]	PLUG
	1J-9671	[1]	SEAL-O-RING
	B		USE AS REQUIRED

Pos.	Part No	Qty	Parts name
1.	5M-6213	[1]	PLUG
2.	4N-1105	[1]	GASKET
3.	5M-6214	[2]	PLUG-PIPE
4.	4W-5477 CY	[1]	PUMP GP-FUEL TRANSFER
5.	0S-1617	[2]	BOLT
6.	4N-7437	[1]	PLUG-THREAD O-RING
	7J-0204	[1]	SEAL-O-RING
7.	4N-1091	[1]	HOUSING AS
8.	2D-8576	[1]	BEARING-FLANGE
9.	4N-1098	[1]	SHAFT AS
10.	4N-1102	[1]	GEAR-TRANSFER PUMP DRIVE
			(11 TEETH)
11.	9S-9332	[1]	FITTING-ELBOW
	C		CHANGE FROM PREVIOUS TYPE
	Y		SEPARATE ILLUSTRATION

Pos.	Part No	Qty	Parts name
1.	0S-1594	[4]	BOLT
2.	3B-1915	[4]	BOLT
3.	0S-1571	[6]	BOLT
4.	0L-1143	[1]	BOLT
5.	053-2294	[1]	BOLT-12 POINT HEAD

Policy on Testing of Fuel Injectors and Fuel Nozzles {1251}
2008/11/01

Do Not Use the 6V-4022 Fuel Injector Tester to Measure Unit Injector Fuel Flow Rate {0782, 1251, 1254, 1290, 1713}
2008/11/01

Engine News

Policy on Testing of Fuel Injectors and Fuel Nozzles {1251}
2008/11/17

The Pop (Injector) Tester Is not Available for Fuel Injectors {0782, 1251, 1254, 1290, 1713}
2008/11/17

Operation and Maintenance Manual

Fuel Injection Timing - Check
631E Series II Wheel Tractor-Scrapers

Special Instruction

"A Series" Governor And Air/Fuel Ratio Control Response And Low Power Test{0374}
"A Series" Governor And Air/Fuel Ratio Control Response And Low Power Test{0374}

Wiring Polarity on Woodward 2301 Governors{1289}
Wiring Polarity on Woodward 2301 Governors{1289}

Replacement For The 2M4314 Fuel Pump Bonnet Retaining Bushing{1250}
Replacement For The 2M4314 Fuel Pump Bonnet Retaining Bushing{1250}

Use Of 6V22 Tool Group For Replacement Of Governor Spring Guide{620, 624, 1264}
Use Of 6V22 Tool Group For Replacement Of Governor Spring Guide{620, 624, 1264}

Installation Of Governor Spring Guide{1264}
Installation Of Governor Spring Guide{1264}

Repair Of Precombustion Chamber And Direct Injection Adapter Seating Surfaces{1101}
Repair Of Precombustion Chamber And Direct Injection Adapter Seating Surfaces{1101}

Using the 6V7870 Fixture Group and 6V7872 Pliers{1250, 1251}
Using the 6V7870 Fixture Group and 6V7872 Pliers{1250, 1251}

Testing Flat-Seat Fuel Injection Valves Using The 5P4150 Nozzle Testing Group{0782, 1254}
Testing Flat-Seat Fuel Injection Valves Using The 5P4150 Nozzle Testing Group{0782, 1254}

7000 Series Nozzles{0782}
7000 Series Nozzles{0782}

Disassembly And Assembly Of The 144-0835 Unit Injector Hydraulic Pump
Disassembly And Assembly Of The 144-0835 Unit Injector Hydraulic Pump

Removal And Installation Of The Hydraulic Electronic Unit Injectors{1290}
Removal And Installation Of The Hydraulic Electronic Unit Injectors{1290}

Installation Procedure Of The HEUI Pump Compensator Standby Plug For 3408E And 3412E Engines{1714}
Installation Procedure Of The HEUI Pump Compensator Standby Plug For 3408E And 3412E Engines{1714}

Test Sequence For Caterpillar 7000 Series Fuel Nozzles {1254}
Test Sequence For Caterpillar 7000 Series Fuel Nozzles{1254}

Installation of the HEUI Wiring Harness{1251, 1408, 1714}
Installation of the HEUI Wiring Harness{1251, 1408, 1714}

Installation Of The 174-8943 Sleeve Into The 3408E And 3412E Unit Injector Hydraulic Pump{1714}
Installation Of The 174-8943 Sleeve Into The 3408E And 3412E Unit Injector Hydraulic Pump{1714}

Introduction of New 3408E and 3412E Hydraulic Electronic Unit Injectors{1290, 1290, 1902, 7620}
Introduction of New 3408E and 3412E Hydraulic Electronic Unit Injectors{1290, 1290, 1902, 7620}

Determining the Cause of Fuel Dilution of Engine Oil {1101, 1124, 1251, 1280, 1290}
Determining the Cause of Fuel Dilution of Engine Oil {1101, 1124, 1251, 1280, 1290}

Service Letter-NACD

Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines
Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines

1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions
1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,

PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771
PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771

Service Letter-Australia

Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines
Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines

1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions
1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,

PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771
PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771

Service Letter-CFEL

Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines
Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines

1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions
1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,

PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771
PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771

Service Letter-CSARL

Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines
Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines

1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions
1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,

PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771
PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771

Service Letter-Americas

Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines
Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines

1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions
1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,

PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771
PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771

Technical Information Bulletin

Remanufactured Fuel Injection Nozzles
Remanufactured Fuel Injection Nozzles

Hydraulic Actuated Electronically Controlled Unit Injector (HEUI) Manifold In Engine Cylinder Head Group May Leak
Hydraulic Actuated Electronically Controlled Unit Injector (HEUI) Manifold In Engine Cylinder Head Group May Leak

Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) Hydraulic Pump
Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) Hydraulic Pump

Cat® Reman Injectors with Invalid Injector Trim Files {1290}
Cat^® Reman Injectors with Invalid Injector Trim Files {1290}

Specifications

Fuel Injection
3408 VEHICULAR ENGINE

Governor Drive And Oil Pump
3408 VEHICULAR ENGINE

Automatic Timing Advance Unit
3408 VEHICULAR ENGINE

Fuel Injection Pump Housing
3408 VEHICULAR ENGINE

Air Chamber For Tractor Engine Governor Throttle Lock 6D4397
631E SERIES II WHEEL TRACTOR-SCRAPER, 631E SERIES II TRACTOR

Scraper Engine Governor (637E Series II Only) 8W0072
631E SERIES II WHEEL TRACTOR-SCRAPER, 631E SERIES II TRACTOR

Fuel Injection
3408C ENGINE FOR CATERPILLAR BUILT MACHINES

Fuel Injection Nozzle And Adapter
3408C ENGINE FOR CATERPILLAR BUILT MACHINES

Governor
3408C ENGINE FOR CATERPILLAR BUILT MACHINES

Fuel Injection Pump Housing
3408C ENGINE FOR CATERPILLAR BUILT MACHINES

Governor Drive And Oil Pump
3408C ENGINE FOR CATERPILLAR BUILT MACHINES

Governor And Fuel Pump Drive
3408C ENGINE FOR CATERPILLAR BUILT MACHINES

Fuel Transfer Pump Drive
3408C ENGINE FOR CATERPILLAR BUILT MACHINES

Fuel Transfer Pump
3408C ENGINE FOR CATERPILLAR BUILT MACHINES

Valve Mechanism Covers
3408C ENGINE FOR CATERPILLAR BUILT MACHINES

Valve Rocker Arms, Lifters And Bridges
3408C ENGINE FOR CATERPILLAR BUILT MACHINES

Injection Actuation Pressure Control Valve
3408E and 3412E Engines for Caterpillar Built Machines

Unit Injector Wiring
3408E and 3412E Engines for Caterpillar Built Machines

Unit Injector Hydraulic Pump
3408E and 3412E Engines for Caterpillar Built Machines

Unit Injector
3408E and 3412E Engines for Caterpillar Built Machines

Tool Operating Manual

9U-5132 Timing and Fuel System Setting Tool Group{1105, 1162, 1290, 1905}
9U-5132 Timing and Fuel System Setting Tool Group{1105, 1162, 1290, 1905}

Using the 4C-6090 Multichannel Temperature Selector Group{0599, 0701, 0706, 1251, 1254, 1290, 1713}
Using the 4C-6090 Multichannel Temperature Selector Group{0599, 0701, 0706, 1251, 1254, 1290, 1713}

Using the TMI System to Retrieve Off Engine Injection Pump Test Specifications for the Fuel Injection Equipment Test Stand{0706, 0782, 1251, 1286}
Using the TMI System to Retrieve Off Engine Injection Pump Test Specifications for the Fuel Injection Equipment Test Stand{0706, 0782, 1251, 1286}

Testing and Adjusting Fuel Injection Pump and Governor on 3064 and 3066 Engines{0374, 0599, 0706}
Testing and Adjusting Fuel Injection Pump and Governor on 3064 and 3066 Engines{0374, 0599, 0706}

Using the 143-2099 Sleeve Replacement Tool Group on 3114, 3116, and 3126 Engines{0374, 0599, 0701, 0706, 0781}
Using the 143-2099 Sleeve Replacement Tool Group on 3114, 3116, and 3126 Engines{0374, 0599, 0701, 0706, 0781}

169-3374 Brass Injector Sleeve Removal Group for 3176 and 3176B Engines{0374, 0599, 0700, 0706}
169-3374 Brass Injector Sleeve Removal Group for 3176 and 3176B Engines{0374, 0599, 0700, 0706}

Service Letter-China

Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines
Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines

1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions
1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,

PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771
PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771

Service Letter-Asia

Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines
Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines

1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions
1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,

PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771
PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771

Reuse And Salvage Guidelines

9U-5132 Timing and Fuel System Setting Tool Group{1105, 1162, 1290, 1905}
9U-5132 Timing and Fuel System Setting Tool Group{1105, 1162, 1290, 1905}

Service Letter-APD

Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines
Product Support Program For Installing An Improved Thrust Plate On Certain 988F And 990 Wheel Loaders, D9R Track-Type Tractors And 769D, 771D, 773D, And 775D Trucks, 631E, 633E, 637E, 651E And 657E Wheel Tractor Scrapers, 24H Motor Graders, 834B Wheel Tractor Scrapers, 24H Motor Graders, Pm565 Cold Planers, 834B Wheel Tractors And 3408E And 3412E Industrial Engines

1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions
1590835, 1388754, 1313098, 1590838, 1388755, 1313099, 0r9420, And 0r8624 Injectors Need To Be Inspected For Special Instructions

PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP GROUP ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 5110B EXCAVATORS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40,

PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771
PRODUCT SUPPORT PROGRAM FOR REPLACING FAILED HEUI INJECTORS ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 5110B EXCAVATORS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; 769D, 771

Testing and Adjusting

Fuel Injector Oil Leakage - Check
3408E and 3412E Engines for Caterpillar Built Machines

Disassembly and Assembly

Fuel Transfer Pump
3408 VEHICULAR ENGINE FOR 631E & 637E TRACTORS

Fuel Injection Pumps
3408 VEHICULAR ENGINE FOR 631E & 637E TRACTORS

Automatic Timing Advance
3408 VEHICULAR ENGINE FOR 631E & 637E TRACTORS

Fuel Injection Pump Housing And Governor
3408 VEHICULAR ENGINE FOR 631E & 637E TRACTORS

Fuel Injection Pump Housing
3408 VEHICULAR ENGINE FOR 631E & 637E TRACTORS

Governor Control Rotochamber (637E Only)
SUPPLEMENT FOR 631E SERIES II & 633E SERIES II & 637E SERIES

Injection Actuation Pressure Sensor - Remove and Install
3408E and 3412E Engines for Caterpillar Built Machines

Unit Injector - Remove
3408E and 3412E Engines for Caterpillar Built Machines

Unit Injector - Install
3408E and 3412E Engines for Caterpillar Built Machines

Electronic Unit Injector - Remove
C15 and C18 Engines for Caterpillar Built Machines

Electronic Unit Injector - Install
C15 and C18 Engines for Caterpillar Built Machines

Service Magazine

Identification Of Fuel Injection Lines And Nozzle Bodies For Different Combustion Systems{1252,1254}
1980/02/25

Modification Of 5P1768 Pointer Assembly Necessary For Use On Some Fuel Injection Pump Housings{1253,0653}
1980/03/31

Special Cup Plugs For Use In Oversize (Larger Than Standard Size) Bores In Valve Rocker Arm Shafts{1102}
1980/09/15

Some Test Procedures And Specifications Changed For 9L6884 Fuel Injection Nozzle Assemblies{1254,0651}
1980/09/29

Larger Plug Used In The Ends Of The Rocker Arm Shaft Assembly{1102}
1980/12/01

6V3129 Nozzle Puller Group And FT1533 Nozzle Assembly Adapter Can Be Used To Remove Fuel Nozzles{0621,1254}
1981/02/02

Improvements To Optional Modification Of 5P4150 Nozzle Tester{0651,1254}
1981/08/17

Part Number For Fuel Injection Pump Group In New Location{1253,1286}
1981/11/09

New 6V4950 Injection Line Speed Pickup Group Used With 6V2100 Multitach{0651}
1982/05/03

Do Not Use A Wire Brush On Fuel Nozzles{1254}
1982/09/27

New Fuel Nozzle Test Sheet Available{0651,1254}
1982/10/04

Bulged Capsule-Type Fuel Nozzles{1254}
1982/10/11

Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter{1106}
1982/10/18

Service Parts Available For The 5P4150 Nozzle Testing Group{0651,0652}
1982/11/22

Explanation Of Engine High Idle RPM And Correct Adjustment Of Engine Setpoint{1264}
1983/11/07

New Adapter Assemblies And Clamps Used To Hold Fuel Nozzles In Position{1106,1252}
1984/02/27

New Seal For Fuel Injection Pump Housing Is More Resistant To Heat Damage{1253}
1984/05/14

Valve Lash Adjustment Not A Warranty Item {1102,1105}
1985/01/14

New Compression Washers (Gas Seals) Used On 7000 Series Fuel Injection Nozzles{1254,1250}
1985/04/01

Check Fuel Injection Nozzles In Overheated Engines{1254}
1985/09/02

Steel Fuel Pump Lifter Used{1250,1251}
1985/09/02

Comparison Of Fuel Timing Tolerances For Field Settings{1250,1251,1281}
1985/10/28

Nylon Seals Used On Lockwire To Seal Critical Areas; Parts Service Seals Available For NACD Dealers{1257,1264}
1986/03/10

Improved Sleeve Bearing Used In Drive End Of Fuel Injection Pump Housing{1253}
1986/03/10

Bleed Screw Washer (Seal) Must Be Replaced If Bleed Screw Removed From Fuel Nozzle{1254}
1986/04/07

Black Nylon Fuel Seals For Lockwire Available Only To NACD Dealers For Certain Customers{1257,1264}
1986/06/09

Update Information For Caterpillar Fuel Injection Equipment Test Stand{0782}
1986/06/16

Changes Have Been Made To OT Microfiche (Fuel Setting And Related Information){1250,1251,1281}
1986/06/16

More Flexible Lockwire Used With Nylon Seals For Sealing Critical Areas{1257,1264}
1986/09/22

Nylon Seals Used On Lockwire To Seal Critical Areas; All Subsidiary Dealers Can Now Order Parts Service Seals {1257,1264}
1986/11/03

New Tie Bars Improve Stability Of The Fuel Injection Test Bench{0652}
1977/01/17

Test Used Fuel Nozzles Before You Install New Nozzles; Tips On Test Procedures{1254,0651,0336}
1977/02/14

New Retainer And Improved Housing Keep Water Pump Bearing Tight; Repair For Loosened Bearing{1361}
1977/04/11

New 5P4185 Fuel Pump Timing Pin To Be Used Only On 3408 And 3412 Engines{0650,1257}
1977/05/16

Fuel Transfer Pump Shaft With Chromium Plate{1256}
1977/10/10

With New 5P7448 Adapter, Earlier Fuel Injection Valves And Nozzles Can Be Tested And Adjusted On The 5P4150 Nozzle Testing Group{0651,1254}
1977/10/31

New Steel Fuel Injection Pump Lifters Should Not Be Mixed With Aluminum Lifters {1281,1250}
1987/09/28

Probable Causes Of Low Fuel Delivery During Testing On Fuel Injection Test Benches{0650,1250}
1978/02/06

Soft Washers And Lockwashers Are Now Used With The Mounting Bolts For Air-Fuel Ratio Control{1278,1264}
1978/03/13

A Gasket Group Is Available To Give Improved Sealing For The Oil Supply To The Rocker Arms On Early Engines{1101,1102,1221}
1978/04/03

Do Not Use The 5B1401 Cleaning Tool Group To Clean The Orifice In Capsule-Type Fuel Injection Nozzles{0650,1254}
1978/04/24

Different O-Ring Seals Now Used In Fuel Injection Pump Group{1251}
1978/08/28

New Drive Adapters For Fuel Injection Test Bench{0650}
1978/09/11

Use New 6V22 Tool Group To Make Replacement Of Worn Governor Spring Guides{0620}
1978/09/25

Adjustment Procedures And Lubrication Recommendations For Drive Pulleys On Caterpillar Fuel Injection Test Bench{0652}
1978/09/25

Caterpillar Fuel Injection Test Bench Book{0374}
1978/10/16

New FT2253 Cable Assembly Drawing Available For Kent-Moore Fuel Injection Test Bench{0782}
1988/01/04

Some Components Of The Variable Pulley And Adjustable Pulley On The Kent-Moore Fuel Injection Test Bench Are Available From Caterpillar{0782}
1988/04/18

Ether Starting Aid Groups Are Now Available{1456}
1979/01/22

Ether Starting Aid System Improves Cold Weather Starts{1456}
1979/03/19

Careful, Correct Installation And Maintenance Of Fuel Injection Lines Is Very Important To Prevent Possible Engine Damage, Fire And Other Problems{1252}
1979/04/23

9S8100 Tool Group Changed To Use With Fuel Transfer Pump Only{0622}
1979/05/28

Fuel Injection Line For Injection Test Bench Is Available From Caterpillar{0652,1250}
1979/07/02

Changes Made To 8S2243 And 8S4613 Wrenches Used On Fuel Injection Pumps{0612,1251}
1979/08/06

General Information -- Diesel Fuels In Cold Temperature Operation{1280}
1979/12/17

Be Sure To Tighten Fuel Injection Line Clamps To The Correct Torque{1252}
1989/09/11

Replace Camshaft And Install New Lifters If Pitting, Spalling, Or Wear Occurs On Lobes Of 4N0599 And 4N0602 Camshafts In Fuel Injection Pump Groups{1251,1253}
1991/05/20

Identification Of Remanufactured Direct Injection Fuel Nozzles (DIFN){1254}
1992/04/20

New Fuel Injection Lines, Clamps, And Brackets Used In Fuel Injection Lines Groups {1252}
1993/05/17

New Fuel Injection Lines, Clamps, And Brackets Used In Fuel Injection Lines Groups {1252}
1993/11/15

Date Code On 7000 Series Fuel Injection Nozzles; New Seals Used In 7000 Series Fuel Injection Nozzles{1254}
1994/05/23

Improved Fuel Pump Bonnet Seal Has Better Heat Resistance {1251}
1994/09/12

Procedure To Increase Fuel Transfer Pump Pressure {1256}
1995/04/10

Tamper Resistant Plugs And Tamper Resistant Bolts Used To Prevent Changes To Fuel Ratio Control (FRC) Setting{1278,1287}
1996/01/22

Seal Kits For Hydraulic Unit Injector Pump Groups Available {1250,1714}
1996/10/28

The 154-6732 Pump Kit Is Available To Help Service The Unit Injector Hydraulic Pump Group On 3408E (99C) And 3412E (80M) Machine Engines {1714}
1998/01/26

Priming The 144-0835 Unit Injector Hydraulic Pump{1714}
1998/07/20

New Plug Kit Improves Injection Actuation Pressure During Engine Cranking {1714}
1998/09/21

Compensator And Socket Head Bolts For 3408E And 3412E Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) Hydraulic Pump Now Available{1714}
1998/11/16

144-0835 Pump Enhancements {1714}
1999/05/03

New Injector Is Now Available{1290}
1999/06/07

Revised CD-ROM For Hydraulic Electronic Unit Injector (HEUI) Fuel System Available {0350}
1999/06/28

New Injector Wiring Harnesses Are Color Coded {1251, 1408}
2000/08/21

An Improved Unit Injector Hydraulic Pump is Available {1714}
2001/08/13

Introduction of New 3408E and 3412E Hydraulic Electronic Unit Injectors {1290}
2002/08/26

Introduction of New Hydraulic Electronic Unit Injectors for 3408E and 3412E Machine Engines {1251, 1290}
2002/11/25

The Special Instruction, REHS1385 , "Introduction of New 3408E and 3412E Hydraulic Electronic Unit Injectors" Has Been Updated in Order to Address Lockup of the ECM {1290}
2003/10/06

New Design of the Injector Provides Improved Durability {1290, 1714}
2006/03/20

New Injectors are Being Offered in Place of Remanufactured Injectors {1000, 1251, 1254, 1290, 1713}
2011/08/25

Troubleshooting Engines with New Scroll Fuel Systems (NSFS) {1254}
2006/01/02

Do Not Reuse the Hold Down Bolts for the Fuel Injectors On All Products that Contain C9 Through C32 Engines {1290}
2014/08/14

Policy on Testing of Fuel Injectors and Fuel Nozzles {1251}
2008/11/17

Do Not Use the 6V-4022 Fuel Injector Tester to Measure Unit Injector Fuel Flow Rate {1251, 1254, 1290, 1713}
2008/11/17

The Pop (Injector) Tester Is not Available for Fuel Injectors {0782, 1251, 1254, 1290, 1713}
2008/11/17

Do not Use the 6V-4022 Fuel Injector Tester to Test Unit Injectors {0782, 1251, 1254, 1290, 1713}
2008/12/01

Cat® Reman Is Announcing an Appearance Change to the EI550 Classic, Bridge, and ACERT Electronic Unit Injectors for Certain Machine Engines {1290}
2015/06/04

Cat® Reman Announces Additions to Several Engine Component Portfolios {108F, 1091, 1251, 1254, 1290, 1713}
2015/07/10

4W6012 PUMP GP-FUEL INJECTION-PART 1 OF 2 TYPE 1 4W0101-PAGE 72, 7N4574-PAGE 73 PART OF 2W8961 PUMP-GOVERNOR, FUEL INJECTION & TRANSFER 631E

FUEL SYSTEM

4W-6012: PUMP GP-FUEL INJECTION

Parts for your 631E WHEEL TRACTOR:

4W-6012: PUMP GP-FUEL INJECTION

Parts for your 631E WHEEL TRACTOR:

4W-6012: PUMP GP-FUEL INJECTION

Parts for your 631E WHEEL TRACTOR:

4W-6012: PUMP GP-FUEL INJECTION

Parts for your 631E WHEEL TRACTOR:

7W-0561: PUMP GP-FUEL INJECTION

Parts for your 631E WHEEL TRACTOR:

4W-0101: PUMP GP-FUEL INJECTION

Parts for your 631E WHEEL TRACTOR:

7N-4574: HOUSING AS-FUEL PUMP

Parts for your 631E WHEEL TRACTOR:

4W-5477: PUMP GP-FUEL TRANSFER

Parts for your 631E WHEEL TRACTOR:

4N-1101: PUMP GP-FUEL TRANSFER

Parts for your 631E WHEEL TRACTOR:

9Y-3764: FASTENER GP-FUEL INJ PUMP

Parts for your 631E WHEEL TRACTOR:

Information:

Caterpillar Parts SIS Catalog 631E :

Truck sale:

4W6012 PUMP GP-FUEL INJECTION-PART 1 OF 2 TYPE 1 4W0101-PAGE 72, 7N4574-PAGE 73 PART OF 2W8961 PUMP-GOVERNOR, FUEL INJECTION & TRANSFER 631E

FUEL SYSTEM

4W-6012: PUMP GP-FUEL INJECTION

Parts for your 631E WHEEL TRACTOR:

4W-6012: PUMP GP-FUEL INJECTION

Parts for your 631E WHEEL TRACTOR:

4W-6012: PUMP GP-FUEL INJECTION

Parts for your 631E WHEEL TRACTOR:

4W-6012: PUMP GP-FUEL INJECTION

Parts for your 631E WHEEL TRACTOR:

7W-0561: PUMP GP-FUEL INJECTION

Parts for your 631E WHEEL TRACTOR:

4W-0101: PUMP GP-FUEL INJECTION

Parts for your 631E WHEEL TRACTOR:

7N-4574: HOUSING AS-FUEL PUMP

Parts for your 631E WHEEL TRACTOR:

4W-5477: PUMP GP-FUEL TRANSFER

Parts for your 631E WHEEL TRACTOR:

4N-1101: PUMP GP-FUEL TRANSFER

Parts for your 631E WHEEL TRACTOR:

9Y-3764: FASTENER GP-FUEL INJ PUMP

Parts for your 631E WHEEL TRACTOR:

Information:

Caterpillar Parts SIS Catalog 631E :

Truck sale:

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