144-0835 PUMP GP-UNIT INJECTOR HYD S/N 99C1829-4662; 99C4817-7189 PART OF 126-7292 PUMP & MTG GP-UNIT INJ HYD 631E

FUEL SYSTEM

PUMP GP-UNIT INJECTOR HYD

0. 144-0835 PUMP GP-UN
1. 169-1034 PUMP GP-UN
2. 201-4201 PUMP GP-UN
3. 201-4202 PUMP GP-UN
4. 225-0567 PUMP GP-UN
5. 225-0568 PUMP GP-UN
6. 235-2024 PUMP GP-UN
7. 235-2026 PUMP GP-UN

VALVE GP-CHECK

8. 102-7535 VALVE GP-C
9. 233-6742 VALVE GP-C
0. INFORMATION

WHEEL TRACTOR 631E WHEEL TRACTOR 1AB
631E Series II Wheel Tractor 1AB01640-UP (MACHINE) POWERED BY 3408E Engine SEBP2495 631E 1AB (1985)

FUEL SYSTEM

PUMP GP-UNIT INJECTOR HYD

134-1598 PUMP GP-UNIT INJECTOR HYD

134-9405 PUMP GP-UNIT INJECTOR HYD

144-0835 PUMP GP-UNIT INJECTOR HYD

169-1034 PUMP GP-UNIT INJECTOR HYD

201-4201 PUMP GP-UNIT INJECTOR HYD

201-4202 PUMP GP-UNIT INJECTOR HYD

#SEBP24950300

144-0835: PUMP GP-UNIT INJECTOR HYD

PUMP GP-UNIT INJECTOR HYD

144-0835 PUMP GP-UNIT INJECTOR HYD
S/N 99C1829-4662; 99C4817-7189
PART OF 126-7292 PUMP & MTG GP-UNIT INJ HYD

i00506649 SEBP2495

1440835 PUMP GP-UNIT INJECTOR HYD Parts scheme

For full view, you need register

Parts for your 631E WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	107-0677 Y	[1]	VALVE GP-SOLENOID
			(HYDRAULIC UNIT INJECTOR VARIABLE PRESSURE CONTROL)
2.	161-8627 B	[1]	KIT-PLUG (UNIT INJECTOR HYDRAULIC PUMP)
			(INCLUDES PLUGS & SEALS)
			(SELECT APPROPRIATE PLUG FROM KIT)
3.	9S-4180	[2]	PLUG (5/16-24 THD)
4.	9S-8001	[2]	PLUG (5/16-24 THD)
5.	9S-8002	[3]	PLUG (7/16-20-THD)(7/16-20 THD)
6.	9S-8004	[4]	PLUG (9/16-18-THD)(9/16-18 THD)
7.	9S-8007	[1]	PLUG
8.	138-4309	[2]	FITTING
9.	138-4311	[2]	SPRING
10.	138-4313	[2]	VALVE (ORIFICE)
11.	144-0837 J	[1]	PUMP GP-UNIT INJECTOR HYD
12.	149-1950	[1]	PUMP GP-FUEL TRANSFER
13.	0S-1617	[4]	BOLT (5/16-18X0.75-IN)

	117-1620 F	[1]	COUPLING (FUEL TRANSFER)
	154-6734 F	[1]	BEARING (REAR)
	6V-8676 F	[1]	SEAL-O-RING (FUEL TRANSFER)
	9X-7680 F	[3]	SEAL-O-RING (COMPENSATOR TO ADAPTER)
	135-2652 F	[1]	SEAL-O-RING (COMPENSATOR TO ADAPTER)
	F	[4]	BOLT-SOCKET HEAD (10-24X3.25-IN)(COMPENSATOR)
	165-6881 F	[1]	SEAL-LIP TYPE
	174-8943 F	[1]	SLEEVE (COMPENSATOR)

			AVAILABLE REPAIR KIT(S):
	154-6735	[1]	KIT-BEARING (YOKE)(UNIT INJECTOR HYD PUMP)
			(INCLUDES A SET OF TWO YOKE BEARINGS)
	154-6732 J	[1]	KIT-FUEL INJECTION PUMP (REBUILD)(UNIT INJ HYD PUMP)
			(INCLUDES YOKE, SHAFT, CONTROL PISTON, SEAL KIT & FRONT BEARING)
	138-6256 Y	[1]	KIT-SEAL (UNIT INJECTOR HYDRAULIC PUMP)
	166-5985	[1]	KIT-COMPENSATOR (UNIT INJECTOR HYDRAULIC PUMP)
			(INCLUDES COMPENSATOR SUB ASSEMBLY, SEAL-O-RINGS, SLEEVE, WIRE SEAL, LOCK WIRE, & COMPENSATOR PLUGS)
	B		USE AS REQUIRED
	F		NOT SHOWN
	J		KIT MARKED J AVAILABLE FOR PART MARKED J
	R		REMANUFACTURED PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION

#SEBP24950301

169-1034: PUMP GP-UNIT INJECTOR HYD

PUMP GP-UNIT INJECTOR HYD

169-1034 PUMP GP-UNIT INJECTOR HYD
S/N 99C4663-4816
PART OF 126-7292 PUMP & MTG GP-UNIT INJ HYD

i01053861 SEBP2495

1691034 PUMP GP-UNIT INJECTOR HYD Parts scheme

For full view, you need register

Parts for your 631E WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	107-0677 Y	[1]	VALVE GP-SOLENOID
			(HYDRAULIC UNIT INJECTOR VARIABLE PRESSURE CONTROL)
2.	161-8627 B	[1]	KIT-PLUG (UNIT INJECTOR HYDRAULIC PUMP)
			(INCLUDES PLUGS & SEALS)
			(SELECT APPROPRIATE PLUG FROM KIT)
3.	149-1950	[1]	PUMP GP-FUEL TRANSFER
4.	169-1035 J	[1]	PUMP GP-UNIT INJECTOR HYD
5.	0S-1617	[4]	BOLT (5/16-18X0.75-IN)
6.	9S-8001	[2]	PLUG (5/16-24 THD)
7.	9S-8004	[4]	PLUG (9/16-18-THD)(9/16-18 THD)
8.	9S-8002	[3]	PLUG (7/16-20-THD)(7/16-20 THD)
9.	9S-4180	[2]	PLUG (5/16-24 THD)
10.	9S-8007	[1]	PLUG
11.	138-4309	[2]	FITTING
12.	138-4311	[2]	SPRING
13.	138-4313	[2]	VALVE (ORIFICE)
14.		[4]	BOLT-SOCKET HEAD (10-24X3.25-IN)

	117-1620 F	[1]	COUPLING (FUEL TRANSFER)
	154-6734 F	[1]	BEARING (REAR)
	154-6735 F	[2]	KIT-BEARING (YOKE)
			(EACH INCLUDES A SET OF TWO YOKE BEARINGS)

			AVAILABLE REPAIR KIT(S):
	138-6256 Y	[1]	KIT-SEAL (UNIT INJECTOR HYDRAULIC PUMP)
	154-6732 J	[1]	KIT-FUEL INJECTION PUMP (REBUILD)(UNIT INJ HYD PUMP)
			(INCLUDES YOKE, SHAFT, PISTON-CONTROL, SEAL KIT, & BEARING FRONT)
	166-5985	[1]	KIT-COMPENSATOR (UNIT INJECTOR HYDRAULIC PUMP)
			(INCLUDES SEAL O-RING, SLEEVE, WIRE SEAL, LOCK WIRE & PLUGS)
	B		USE AS REQUIRED
	F		NOT SHOWN
	J		KIT MARKED J SERVICES PART(S) MARKED J
	R		REMANUFACTURED PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION

#SEBP24950302

201-4201: PUMP GP-UNIT INJECTOR HYD

PUMP GP-UNIT INJECTOR HYD

201-4201 PUMP GP-UNIT INJECTOR HYD
S/N 99C7190-99999
PART OF 126-7292 PUMP & MTG GP-UNIT INJ HYD

i01483301 SEBP2495

2014201 PUMP GP-UNIT INJECTOR HYD Parts scheme

For full view, you need register

Parts for your 631E WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	117-1620	[1]	COUPLING
2.	149-1950	[1]	PUMP GP-FUEL TRANSFER
3.	201-4202 Y	[1]	PUMP GP-UNIT INJECTOR HYD
4.	0S-1617	[4]	BOLT (5/16-18X0.75-IN)
5.	6V-8676	[1]	SEAL-O-RING
	R		REMANUFACTURED PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION

#SEBP24950303

201-4202: PUMP GP-UNIT INJECTOR HYD

PUMP GP-UNIT INJECTOR HYD

201-4202 PUMP GP-UNIT INJECTOR HYD
S/N 99C7190-99999
PART OF 201-4201 PUMP GP-UNIT INJECTOR HYD

i01601764 SEBP2495

2014202 PUMP GP-UNIT INJECTOR HYD Parts scheme

For full view, you need register

Parts for your 631E WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	107-0677 Y	[1]	VALVE GP-SOLENOID
			(HYDRAULIC UNIT INJECTOR VARIABLE PRESSURE CONTROL)
2.	161-8627 B	[1]	KIT-PLUG (UNIT INJECTOR HYDRAULIC PUMP)
			(INCLUDES PLUGS & SEALS)
			(SELECT APPROPRIATE PLUG FROM KIT)
3.	9S-4180	[2]	PLUG (5/16-24 THD)
4.	9S-8001	[2]	PLUG (5/16-24 THD-HEX SOCKET HEAD)
5.	9S-8002	[3]	PLUG (7/16-20-THD)(7/16-20 THD)
6.	9S-8004	[3]	PLUG (9/16-18-THD)(9/16-18 THD)
7.	9S-8007	[1]	PLUG
8.	138-4309	[2]	FITTING
9.	138-4311	[2]	SPRING
10.	138-4313	[2]	VALVE (ORIFICE)
12.		[4]	BOLT-SOCKET HEAD (10-24X3.25-IN)
13.	201-4155	[1]	SEAL-LIP TYPE

	154-6734 F	[1]	BEARING (REAR)
	9X-7680 F	[3]	SEAL-O-RING (COMPENSATOR TO ADAPTER)
	135-2652 F	[1]	SEAL-O-RING (COMPENSATOR TO ADAPTER)
	174-8943 F	[1]	SLEEVE (COMPENSATOR)

			AVAILABLE REPAIR KIT(S):
	154-6735	[1]	KIT-BEARING (YOKE)(UNIT INJECTOR HYD PUMP)
			(INCLUDES A SET OF TWO YOKE BEARINGS)
	166-5985	[1]	KIT-COMPENSATOR (UNIT INJECTOR HYDRAULIC PUMP)
			(INCLUDES COMPENSATOR SUB ASSEMBLY, O-RING SEALS, SLEEVE, WIRE SEAL, LOCK WIRE & COMPENSATOR PLUGS)
	201-4203	[1]	KIT-PUMP (REBUILD)(UNIT INJ HYD PUMP)
			(INCLUDES YOKE, SHAFT, CONTROL PISTON, SEAL KIT & FRONT BEARING)
	138-6256 Y	[1]	KIT-SEAL (UNIT INJECTOR HYDRAULIC PUMP)
	B		USE AS REQUIRED
	F		NOT SHOWN
	Y		SEPARATE ILLUSTRATION

#SEBP24950304

225-0567: PUMP GP-UNIT INJECTOR HYD

PUMP GP-UNIT INJECTOR HYD

225-0567 PUMP GP-UNIT INJECTOR HYD
S/N 99C7560-UP
PART OF 225-0568 PUMP GP-UNIT INJECTOR HYD
AN ATTACHMENT

i01805753 SEBP2495

2250567 PUMP GP-UNIT INJECTOR HYD Parts scheme

For full view, you need register

Parts for your 631E WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	107-0677 Y	[1]	VALVE GP-SOLENOID
			(HYDRAULIC UNIT INJECTOR VARIABLE PRESSURE CONTROL)
2.	161-8627 B	[1]	KIT-PLUG (UNIT INJECTOR HYDRAULIC PUMP)
			(INCLUDES PLUGS & SEALS)
			(SELECT APPROPRIATE PLUG FROM KIT)
3.	9S-4180	[2]	PLUG (5/16-24 THD)
4.	9S-8001	[2]	PLUG (5/16-24 THD-HEX SOCKET HEAD)
5.	9S-8002	[3]	PLUG (7/16-20-THD)(7/16-20 THD)
6.	9S-8004	[3]	PLUG (9/16-18-THD)(9/16-18 THD)
7.	9S-8007	[1]	PLUG
8.	138-4309	[2]	FITTING
9.	138-4311	[2]	SPRING
10.	138-4313	[2]	VALVE (ORIFICE)
12.		[4]	BOLT-SOCKET HEAD (10-24X3.25-IN)
13.	201-4155	[1]	SEAL-LIP TYPE

	154-6734 F	[1]	BEARING (REAR)
	9X-7680 F	[3]	SEAL-O-RING (COMPENSATOR TO ADAPTER)
	135-2652 F	[1]	SEAL-O-RING (COMPENSATOR TO ADAPTER)
	174-8943 F	[1]	SLEEVE (COMPENSATOR)
	222-4504 F	[1]	RESTRICTOR

			AVAILABLE REPAIR KIT(S):
	154-6735	[1]	KIT-BEARING (YOKE)(UNIT INJECTOR HYD PUMP)
			(INCLUDES A SET OF TWO YOKE BEARINGS)
	166-5985	[1]	KIT-COMPENSATOR (UNIT INJECTOR HYDRAULIC PUMP)
			(INCLUDES COMPENSATOR SUB ASSEMBLY, O-RING SEALS, SLEEVE, WIRE SEAL, LOCK WIRE & COMPENSATOR PLUGS)
	225-8545	[1]	KIT-PUMP (UNIT INJECTOR HYDRAULIC PUMP)
			(INCLUDES YOKE, SHAFT, PISTON CONTROL, SEAL KIT & BEARING FRONT)
	138-6256 Y	[1]	KIT-SEAL (UNIT INJECTOR HYDRAULIC PUMP)
	B		USE AS REQUIRED
	F		NOT SHOWN
	Y		SEPARATE ILLUSTRATION

#SEBP24950305

225-0568: PUMP GP-UNIT INJECTOR HYD

PUMP GP-UNIT INJECTOR HYD

225-0568 PUMP GP-UNIT INJECTOR HYD
S/N 99C7560-9656
PART OF 126-7292 PUMP & MTG GP-UNIT INJ HYD
AN ATTACHMENT

i01805751 SEBP2495

2250568 PUMP GP-UNIT INJECTOR HYD Parts scheme

For full view, you need register

Parts for your 631E WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	117-1620	[1]	COUPLING
2.	149-1950	[1]	PUMP GP-FUEL TRANSFER
3.	225-0567 Y	[1]	PUMP GP-UNIT INJECTOR HYD
4.	0S-1617	[4]	BOLT (5/16-18X0.75-IN)
5.	6V-8676	[1]	SEAL-O-RING
	R		REMANUFACTURED PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION

#SEBP24950306

235-2024: PUMP GP-UNIT INJECTOR HYD

PUMP GP-UNIT INJECTOR HYD

235-2024 PUMP GP-UNIT INJECTOR HYD
S/N 99C9657-UP
PART OF 126-7292 PUMP & MTG GP-UNIT INJ HYD
AN ATTACHMENT

i02088712 SEBP2495

2352024 PUMP GP-UNIT INJECTOR HYD Parts scheme

For full view, you need register

Parts for your 631E WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	117-1620	[1]	COUPLING
2.	149-1950	[1]	PUMP GP-FUEL TRANSFER
3.	235-2026 Y	[1]	PUMP GP-UNIT INJECTOR HYD
4.	0S-1617	[4]	BOLT (5/16-18X0.75-IN)
5.	6V-8676	[1]	SEAL-O-RING
6.	262-9769	[2]	PLUG
	R		REMANUFACTURED PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION

#SEBP24950307

235-2026: PUMP GP-UNIT INJECTOR HYD

PUMP GP-UNIT INJECTOR HYD

235-2026 PUMP GP-UNIT INJECTOR HYD
S/N 99C9657-9826
PART OF 235-2024 PUMP GP-UNIT INJECTOR HYD
AN ATTACHMENT

i02088718 SEBP2495

For full view, you need register

Parts for your 631E WHEEL TRACTOR:

CATERPILLAR SIS

Part No	Qty	Parts name
138-6256 Y	[1]	KIT-SEAL (UNIT INJECTOR HYDRAULIC PUMP)
107-0677 Y	[1]	VALVE GP-SOLENOID (UNIT INJECTOR HYDRAULIC PUMP)
154-6734	[1]	BEARING (REAR)
239-2316	[8]	BOLT AS
		(EACH INCLUDES)
9X-8256	[1]	WASHER (6.6X12X2-MM THK)
	[4]	BOLT-SOCKET HEAD (10-24X3.25-IN)
138-4309	[2]	FITTING
254-7220	[1]	HOUSING GP-PUMP
166-5985	[1]	KIT-COMPENSATOR (UNIT INJECTOR HYDRAULIC PUMP)
		(INCLUDES COMPENSATOR SUB ASSEMBLY, O-RING SEALS, SLEEVE, WIRE SEAL, LOCK WIRE & COMPENSATOR PLUGS)
161-8627	[1]	KIT-PLUG (UNIT INJECTOR HYDRAULIC PUMP)
		(INCLUDES SEAL & PLUGS)
225-8545	[1]	KIT-PUMP (UNIT INJECTOR HYDRAULIC PUMP)
		(INCLUDES SEAL, SHAFT, PISTON, YOKE ASSEMBLY, BEARING, & ROTATING GROUP)
9S-4180	[2]	PLUG
9S-8007	[1]	PLUG
9S-8001	[2]	PLUG (5/16-24 THD)
9S-8002	[3]	PLUG (7/16-20-THD)(7/16-20 THD)
9S-8004	[3]	PLUG (9/16-18-THD)
201-4155	[1]	SEAL-LIP TYPE
9X-7680	[3]	SEAL-O-RING
135-2652	[1]	SEAL-O-RING
152-6735	[1]	SLEEVE
174-8943	[1]	SLEEVE
138-4311	[2]	SPRING
138-4313	[2]	VALVE (ORIFICE)
Y		SEPARATE ILLUSTRATION

#SEBP24950308

102-7535: VALVE GP-CHECK

VALVE GP-CHECK

102-7535 VALVE GP-CHECK
S/N 99C1-UP
PART OF 126-4037 LINES GP-FUEL FILTER
ALSO AN ATTACHMENT

i00089831 SEBP2495

For full view, you need register

Parts for your 631E WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	033-6033	[1]	SEAL-O-RING
2.	6V-6923	[1]	RING-BACKUP
3.	6V-4589	[1]	SEAL-O-RING

#SEBP24950309

233-6742: VALVE GP-CHECK

VALVE GP-CHECK

233-6742 VALVE GP-CHECK -FUEL
S/N TXH1564-UP; RHX4513-UP
PART OF 243-3368, 356-1887 LINES GP-FUEL

i02443795 SEBP2495

For full view, you need register

Parts for your 631E WHEEL TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	281-2725 CY	[1]	VALVE GP-CHECK (FUEL)
2.	238-5081	[1]	SEAL-O-RING
	C		CHANGE FROM PREVIOUS TYPE
	Y		SEPARATE ILLUSTRATION

Information:

FUEL SYSTEM

PUMP GP-UNIT INJECTOR HYD

Special Instruction

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

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}

Installation Of The 033-6039 O-Ring Seal Into The 3408E And 3412E Unit Injector Hydraulic Pump{1251}
Installation Of The 033-6039 O-Ring Seal Into The 3408E And 3412E Unit Injector Hydraulic Pump{1251}

Installation of New Hose Assembly for Unit Injector Hydraulic Pump{1274, 1307, 1714}
Installation of New Hose Assembly for Unit Injector Hydraulic Pump{1274, 1307, 1714}

Service Letter-NACD

PSP FOR REPLACING THE HEUI HYDRAULIC PUMP GROUP OR INSTALLING A PUMP REPAIR KIT ON CERTAIN 3408E AND 3412E, 836, 24H, 669D, 771 D, 773D AND 775D, D9R AND 988F II AND 990 II, 834B, 631E, 633E, 637E, 651E AND 657E, PM-565 AND AD40 AND AE40 - PS5378 - MAILED US AND CANADA, CACO, COFA, CAPL, CCL, COSA- REVISED 03/01
PSP FOR REPLACING THE HEUI HYDRAULIC PUMP GROUP OR INSTALLING A PUMP REPAIR KIT ON CERTAIN 3408E AND 3412E, 836, 24H, 669D, 771 D, 773D AND 775D, D9R AND 988F II AND 990 II, 834B, 631E, 633E, 637E, 651E AND 657E, PM-565 AND AD40 AND AE40 - PS5378 - MAILED US AND CANADA, CACO, COFA, CAPL, CCL, COSA- REVISED 03/01

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

Product Support Program For Installing A New Electronic Software Group On Certain 631E, 633E, 637E, 651E, And 657E Wheel Tractor Scrapers Equipped With A HEUI Engine And A Retarder
Product Support Program For Installing A New Electronic Software Group On Certain 631E, 633E, 637E, 651E, And 657E Wheel Tractor Scrapers Equipped With A HEUI Engine And A Retarder

PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP DRIVE ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40, 69D, 73D, 769D, 7
PRODUCT SUPPORT PROGRAM FOR REPLACING THE HEUI PUMP DRIVE ON CERTAIN 3408E AND 3412E POWERED 836 COMPACTORS; 834B AND 844 WHEEL DOZERS; 988F AND 990 WHEEL LOADERS; 24H MOTOR GRADERS; 631E, 633E, 637E, 651E, AND 657E SCRAPERS; AD40, AE40, 69D, 73D, 769D, 7

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,

Service Letter-Australia

Service Letter-CFEL

Service Letter-CSARL

Service Letter-Americas

Technical Information Bulletin

Unit Injection Pump Group (HEUI Engine Hydraulic Oil Supply)
Unit Injection Pump Group (HEUI Engine Hydraulic Oil Supply)

Excessive Wear And Breakage Of 124-6639 Thrust Plate In 125-3427 Pump Drive Group (HEUI Hydraulic Pump Drive)
Excessive Wear And Breakage Of 124-6639 Thrust Plate In 125-3427 Pump Drive Group (HEUI Hydraulic Pump Drive)

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

Specifications

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

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

Hydraulic Pump Drive
3408E and 3412E Engines for Caterpillar Built Machines

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

Tool Operating Manual

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 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}

Service Letter-China

Service Letter-Asia

Service Letter-APD

Disassembly and Assembly

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

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

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

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

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

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

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

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

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

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

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

Service Magazine

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 Steel Thrust Plate Replaces Bronze Thrust Plate In Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) Pump Drive Groups {1714}
1998/07/27

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

Bearing Specifications For 3408E And 3412E Hydraulically Actuated Electronically Controlled Unit Injector (HEUI) Hydraulic Drive Group{1714}
1999/02/01

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

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

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

New High Pressure Oil Hose Assembly Offers Added Flexibility for Thermal Expansion {1714, 7554}
2002/11/18

Installation of a Protective Sleeve for the Hose on the Pump of the Hydraulic Electronic Unit Injector (HEUI) Fuel System is Now Used {1307, 1714}
2005/02/07

Troubleshooting the Injection Actuation Pressure on Unit Injector Hydraulic Pumps {1714}
2006/11/13

Caterpillar Parts SIS Catalog 631E :

134-9405 PUMP GP-UNIT INJECTOR HYD

134-1598 PUMP GP-UNIT INJECTOR HYD

133-1708 PUMP GP-UNIT INJECTOR HYD

125-3225 PUMP GP-UNIT INJECTOR HYD

139-9094 PUMP GP-FUEL TRANSFER

217-8342 PUMP GP-FUEL PRM & WATER SEP

7N-4416 PUMP GP-FUEL PRIMING

169-1034 PUMP GP-UNIT INJECTOR HYD

201-4201 PUMP GP-UNIT INJECTOR HYD

201-4202 PUMP GP-UNIT INJECTOR HYD

225-0567 PUMP GP-UNIT INJECTOR HYD

225-0568 PUMP GP-UNIT INJECTOR HYD

235-2024 PUMP GP-UNIT INJECTOR HYD

235-2026 PUMP GP-UNIT INJECTOR HYD

102-7535 VALVE GP-CHECK

Truck sale:

Caterpillar 631E
- Scrapers
TRACTOR & EQUIPMENT CO.

65.000

Caterpillar 631E, Schaber, Bau-Und Bergbauausrüstung
- Scrapers
CASHMAN EQUIPMENT CO.

65.000

Caterpillar 631E, Schaber, Bau-Und Bergbauausrüstung
- Scrapers
CASHMAN EQUIPMENT CO.

65.000

Caterpillar 631E, Schaber, Bau-Und Bergbauausrüstung
- Scrapers
CASHMAN EQUIPMENT CO.

65.000

Caterpillar 631E, Schaber, Bau-Und Bergbauausrüstung
- Scrapers
CASHMAN EQUIPMENT CO.