183-2859 PUMP & MTG GP-UNIT INJ HYD S/N 5GG1-UP PART OF 159-3459 ENGINE AR-CORE Type 1 325C EXCAVATOR

FUEL SYSTEM

PUMP GP-FUEL INJECTION

0. 183-2859 PUMP & MTG
1. 183-2859 PUMP & MTG

FILTER GP-FUEL

2. 188-6121 PUMP GP-FU
3. 190-8977 PUMP GP-FU

PUMP GP-FUEL INJECTION

4. 178-0198 PUMP GP-UN

PUMP GP-UNIT INJECTOR HYD

5. 186-3410 PUMP GP-UN

REGULATOR GP-FUEL PRESSURE

6. 232-0343 REGULATOR

TANK GP-FUEL

7. 177-5815 TANK & MTG
8. 177-5816 TANK GP-FU
9. 177-5816 TANK GP-FU
0. INFORMATION

EXCAVATOR 325C EXCAVATOR S2C
325C Material Handler S2C00001-UP (MACHINE) POWERED BY 3126 Engine SEBP3627 325C S2C (2001)

FUEL SYSTEM

PUMP GP-FUEL INJECTION

183-2859 PUMP & MTG GP-UNIT INJ HYD

178-0198 PUMP GP-UNIT INJECTION

#SEBP36270130

183-2859: PUMP & MTG GP-UNIT INJ HYD

PUMP & MTG GP-UNIT INJ HYD

183-2859 PUMP & MTG GP-UNIT INJ HYD
S/N 5GG1-UP
PART OF 159-3459 ENGINE AR-CORE
Type 1

i01554219 SEBP3627

1832859 PUMP & MTG GP-UNIT INJ HYD Parts scheme

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	185-3241	[1]	SEAL-O-RING
2.	175-3236	[1]	HOSE AS
3.	179-7001 Y	[2]	ADAPTER GP-OIL LINE
4.	186-3410 Y	[1]	PUMP GP-UNIT INJECTOR HYD
5.	6V-5049	[1]	SEAL-O-RING
6.	6V-5219 M	[1]	BOLT (M8X1.25X40-MM)
7.	6V-9804 M	[2]	BOLT (M8X1.25X75-MM)
8.	9M-1974	[3]	WASHER-HARD (8.8X16X2-MM THK)
9.	9S-8004	[1]	PLUG (9/16-18-THD)
	M		METRIC PART
	Y		SEPARATE ILLUSTRATION

#SEBP36270131

183-2859: PUMP & MTG GP-UNIT INJ HYD

PUMP & MTG GP-UNIT INJ HYD

183-2859 PUMP & MTG GP-UNIT INJ HYD
S/N 5GG1-UP
PART OF 159-3459 ENGINE AR-CORE
Type 2

i03097930 SEBP3627

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	183-3399 C	[1]	CONNECTOR AS
	6V-8636	[1]	CONNECTOR
	214-7568	[1]	SEAL-O-RING
	221-3494	[1]	SEAL-O-RING
2.	224-2639 C	[1]	SEAL-O-RING
3.	247-3755 C	[1]	TUBE AS
4.	250-1424 C	[1]	ELBOW AS
	6V-8724	[1]	ELBOW
	214-7568	[1]	SEAL-O-RING
	221-3494	[1]	SEAL-O-RING
5.	389-3708	[1]	PLUG AS
5A.	214-7568	[1]	SEAL-O-RING
	360-3679	[1]	PLUG-CONNECTOR (9/16-18-THD)
6.	186-3410 Y	[1]	PUMP GP-UNIT INJECTOR HYD
7.	6V-5219 M	[1]	BOLT (M8X1.25X40-MM)
8.	6V-9804 M	[2]	BOLT (M8X1.25X75-MM)
9.	9M-1974	[3]	WASHER-HARD (8.8X16X2-MM THK)
	C		CHANGE FROM PREVIOUS TYPE
	M		METRIC PART
	Y		SEPARATE ILLUSTRATION

#SEBP36270132

188-6121: PUMP GP-FUEL PRM & PRIM FILTER

PUMP GP-FUEL PRM & PRIM FILTER

188-6121 PUMP GP-FUEL PRM & PRIM FILTER -WITH WATER SEPARATOR
S/N S2C1-UP
PART OF 177-5828 LINES GP-FUEL FILTER

i01559827 SEBP3627

1886121 PUMP GP-FUEL PRM & PRIM FILTER Parts scheme

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	190-8977 Y	[1]	PUMP GP-FUEL PRM & WATER SEP
2.	209-9234	[1]	REGULATOR-PRESSURE (FUEL TRANSFER PUMP)
3.	211-7730	[1]	TUBE AS
4.	030-8194	[1]	CONNECTOR
5.	136-7227	[2]	SEAL-O-RING
	Y		SEPARATE ILLUSTRATION

#SEBP36270133

190-8977: PUMP GP-FUEL PRM & WATER SEP

PUMP GP-FUEL PRM & WATER SEP

190-8977 PUMP GP-FUEL PRM & WATER SEP
S/N S2C1-UP
PART OF 188-6121 PUMP GP-FUEL PRM & PRIM FILTER

i01420567 SEBP3627

1908977 PUMP GP-FUEL PRM & WATER SEP Parts scheme

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	174-9570 Y	[1]	FILTER GP-WATER SEP & FUEL (PRIMARY)
2.	190-8970	[1]	PUMP GP-FUEL PRIMING
	Y		SEPARATE ILLUSTRATION

#SEBP36270134

178-0198: PUMP GP-UNIT INJECTION

PUMP GP-UNIT INJECTION

178-0198 PUMP GP-UNIT INJECTION
S/N 5GG1-UP
PART OF 159-3459 ENGINE AR-CORE

i01420546 SEBP3627

1780198 PUMP GP-UNIT INJECTION Parts scheme

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	178-0199 Y	[1]	INJECTOR GP-FUEL
2.	199-6103	[1]	BOLT-SPECIAL
3.	159-0288	[1]	DEFLECTOR
4.	8T-2396 M	[1]	BOLT (M6X1X60-MM)
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION

#SEBP36270135

186-3410: PUMP GP-UNIT INJECTOR HYD

PUMP GP-UNIT INJECTOR HYD

186-3410 PUMP GP-UNIT INJECTOR HYD
S/N 5GG1-UP
PART OF 183-2859 PUMP & MTG GP-UNIT INJ HYD

i01554232 SEBP3627

1863410 PUMP GP-UNIT INJECTOR HYD Parts scheme

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	122-5053 Y	[1]	VALVE GP-SOLENOID
2.	128-3473	[1]	GEAR-PUMP DRIVE (36-TEETH)
4.	4P-5918	[1]	CLIP
5.	8T-4200 M	[2]	BOLT (M8X1.25X16-MM)
6.	8T-4224	[1]	WASHER-HARD (8.8X16X2-MM THK)
7.	118-0275	[1]	WASHER (13.5X32X8-MM THK)
8.	131-1845	[1]	PLUG-HEX SOCKET
9.	144-7339	[1]	SEAL-O-RING
10.	8T-4139 M	[1]	BOLT (M12X1.75X30-MM)
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION

#SEBP36270136

232-0343: REGULATOR GP-FUEL PRESSURE

REGULATOR GP-FUEL PRESSURE

232-0343 REGULATOR GP-FUEL PRESSURE
S/N 5GG1-UP
PART OF 183-2860 LINES GP-FUEL

i01929354 SEBP3627

2320343 REGULATOR GP-FUEL PRESSURE Parts scheme

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name	Comments
1.	214-7568	[1]	SEAL-O-RING
2.	369-6662	[1]	REGULATOR AS (FUEL PRESSURE)

#SEBP36270137

177-5815: TANK & MTG GP-FUEL

TANK & MTG GP-FUEL

177-5815 TANK & MTG GP-FUEL
S/N S2C1-UP
PART OF 211-1669 CHASSIS AR

i01556236 SEBP3627

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5P-8502	[1]	PADLOCK GP
	5P-8500	[1]	KEY
	8Y-6364	[1]	SLEEVE
2.	177-5816 Y	[1]	TANK GP-FUEL
3.	177-5886	[4]	SPACER (17X35X87-MM THK)
4.	8T-4174 M	[4]	BOLT (M16X2X120-MM)
	M		METRIC PART
	Y		SEPARATE ILLUSTRATION

#SEBP36270138

177-5816: TANK GP-FUEL

TANK GP-FUEL

177-5816 TANK GP-FUEL
S/N S2C1-153
500 LITER (130 GALLONS)
PART OF 177-5815 TANK & MTG GP-FUEL

i01560767 SEBP3627

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	4I-0378	[1]	GASKET-RUBBER
2.	7X-7700	[1]	CAP AS-FUEL (LOCKABLE, VENTED)
2A.	5P-8502	[1]	PADLOCK GP
	5P-8500	[1]	KEY
	8Y-6364		SLEEVE
	9X-2205	[1]	KIT-CAP FILTER (FUEL TANK)
2B.	9X-8600	[1]	SEAL-O-RING
3.	7Y-2398	[1]	GAUGE GP-SIGHT (FUEL LEVEL)
3A.	4I-0123	[1]	PIPE
3B.	7Y-4754	[2]	BLOCK
3C.	094-3247 M	[2]	BOLT (M10X1.5X36-MM)
3D.	095-1514	[4]	SEAL-O-RING
3E.	095-1517	[4]	SEAL-O-RING
4.	9P-7121	[1]	STRAINER-FUEL (FUEL TANK)
5.	003-7764	[1]	END-HOSE
6.	128-4411	[1]	VALVE AS (FUEL SHUTOFF)
7.	163-6700	[1]	SENSOR GP-FUEL LEVEL
7A.	102-8802	[2]	KIT-RECEPTACLE (2-PIN)
7B.	8T-8729	[1]	PIN-CONNECTOR (16-GA TO 18-GA)
8.	165-2881	[1]	VALVE-BALL (SEDIMENT, WATER)
9.	177-5817	[1]	TANK AS-FUEL
10.	177-5823	[1]	COVER AS
11.	193-9696	[1]	HOSE-DRAIN
12.	095-0736 M	[5]	SCREW-MACHINE (M5X0.8X10-MM)
13.	135-8573	[6]	BOLT AS
			(EACH INCLUDES)
13A.	5P-1076	[1]	WASHER-HARD (13.5X30X4-MM THK)
	8T-4192 M	[1]	BOLT (M12X1.75X25-MM)
14.	2S-4078	[1]	SEAL-O-RING
15.	3B-0551	[1]	PLUG-PIPE
16.	8T-0328	[5]	WASHER-HARD (5.5X10X1-MM THK)
17.	9S-6130	[1]	PLUG
	M		METRIC PART

#SEBP36270139

177-5816: TANK GP-FUEL

TANK GP-FUEL

177-5816 TANK GP-FUEL
S/N S2C154-UP
500 LITER (130 GALLONS)
PART OF 177-5815 TANK & MTG GP-FUEL

i02195950 SEBP3627

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	4I-0378	[1]	GASKET-RUBBER
2.	7X-7700	[1]	CAP AS-FUEL (LOCKABLE, VENTED)
2A.	9X-8600	[1]	SEAL-O-RING
	9X-2205	[1]	KIT-CAP FILTER (FUEL TANK)
3.	223-3095 CY	[1]	GAUGE GP-SIGHT (FUEL LEVEL)
4.	9P-7121	[1]	STRAINER-FUEL (FUEL TANK)
5.	003-7764	[1]	END-HOSE
6.	128-4411	[1]	VALVE AS (FUEL SHUTOFF)
7.	163-6700	[1]	SENSOR GP-FUEL LEVEL
7A.	102-8802	[1]	KIT-RECEPTACLE (2-PIN)
			(INCLUDES RECEPTACLE AS & WEDGE)
7B.	186-3735	[2]	PIN-CONNECTOR (16-GA TO 18-GA)
8.	165-2881	[1]	VALVE-BALL (SEDIMENT, WATER)
9.	9S-6130	[1]	PLUG
10.	177-5823	[1]	COVER AS
11.	193-9696	[1]	HOSE-DRAIN
12.	095-0736 M	[5]	SCREW-MACHINE (M5X0.8X10-MM)
13.	135-8573	[6]	BOLT AS
14.	2S-4078	[1]	SEAL-O-RING
15.	3B-0551	[1]	PLUG-PIPE
16.	8T-0328	[5]	WASHER-HARD (5.5X10X1-MM THK)
	C		CHANGE FROM PREVIOUS TYPE
	M		METRIC PART
	Y		SEPARATE ILLUSTRATION

Information:

FUEL SYSTEM

PUMP GP-FUEL INJECTION

Truck Engine News

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

Specifications

Injection Actuation Pressure Control Valve
3126B Engine for Caterpillar Built Machines

Unit Injector
3126B Engine for Caterpillar Built Machines

Unit Injector Hydraulic Pump
3126B Engine 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 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}

Using the 223-2454 Tool Group on 3114, 3116, and 3126 Engines with Mechanical Unit Injectors (MUI){0374, 0599, 0701, 0706, 1251, 1252, 1254}
Using the 223-2454 Tool Group on 3114, 3116, and 3126 Engines with Mechanical Unit Injectors (MUI){0374, 0599, 0701, 0706, 1251, 1252, 1254}

Testing and Adjusting

Unit Injector - Test
3126B Engines

Troubleshooting

Injector Solenoid Circuit - Test
3126B Engines for the IT38G Series II Integrated Toolcarrier and the 938G Series II Wheel Loader

CID 0001 FMI 11 Cylinder #1 Injector fault
3126B Engines for 322C, 325C, and M325C Excavators and for the 325C Mobile Hydraulic Power Unit

CID 0002 FMI 11 Cylinder #2 Injector fault
3126B Engines for 322C, 325C, and M325C Excavators and for the 325C Mobile Hydraulic Power Unit

CID 0003 FMI 11 Cylinder #3 Injector fault
3126B Engines for the IT62G Series II Integrated Toolcarrier and for the 950G Series II and 962G Series II Wheel Loaders

CID 0004 FMI 11 Cylinder #4 Injector fault
3126B Engines for 322C, 325C, and M325C Excavators and for the 325C Mobile Hydraulic Power Unit

CID 0005 FMI 11 Cylinder #5 Injector fault
3126B Engines for the IT62G Series II Integrated Toolcarrier and for the 950G Series II and 962G Series II Wheel Loaders

CID 0006 FMI 11 Cylinder #6 Injector fault
3126B Engines for the IT38G Series II Integrated Toolcarrier and the 938G Series II Wheel Loader

Disassembly and Assembly

Unit Injector - Remove
3126B Engines for Caterpillar Built Machines

Unit Injector - Install
3126B Engines for Caterpillar Built Machines

Service Magazine

Improved O-Ring Seals for Fuel Injectors for Longer Seal Life {1254}
2003/10/20

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

Improvements have been made to Remanufactured Fuel Injectors {1251, 1254, 1290, 1713}
2008/04/07

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