178-6643 INSTALLATION AR-ENGINE S/N BMM1-UP; BKW1-UP PART OF 176-2757, 193-6736 GENERAL AR 325C EXCAVATOR

Part No	Qty	Parts name
183-8086 Y	[1]	AIR CLEANER GP
178-5598 Y	[1]	CONDENSER & MTG GP-REFRIGERANT
183-8089 Y	[1]	COOLER & MTG GP-HYDRAULIC OIL
183-8090 Y	[1]	FILTER & MTG GP-ENGINE OIL
178-6644 Y	[1]	LINES GP-AIR
190-5811 Y	[1]	LINES GP-AIR INLET & EXHAUST
183-8209 Y	[1]	DRAIN GP-MUFFLER
171-9114 Y	[1]	LINES GP-ENGINE OIL DRAIN
183-8208 Y	[1]	MOUNTING GP-ENGINE
178-6645 Y	[1]	RADIATOR GP
Y		SEPARATE ILLUSTRATION

#SEBP31800011

161-4276: CAMSHAFT GP

CAMSHAFT GP

161-4276 CAMSHAFT GP
S/N 5GG1-UP
PART OF 159-3459 ENGINE AR-CORE

i01518870 SEBP3180

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	205-1259	[1]	CAMSHAFT AS
1A.	1B-8705	[1]	KEY-WOODRUFF
1B.	107-7809	[1]	GEAR-CAMSHAFT (100-TEETH)
2.	107-7694	[1]	PLATE-THRUST
3.	6V-3940 M	[2]	BOLT (M8X1.25X25-MM)
	M		METRIC PART

#SEBP31800012

216-7922: CAMSHAFT GP

CAMSHAFT GP

216-7922 CAMSHAFT GP
S/N 5GG502-UP
PART OF 159-3459, 233-6947 ENGINE AR-CORE

i01773963 SEBP3180

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	107-7694	[1]	PLATE-THRUST
2.	216-7921	[1]	CAMSHAFT AS
2A.	1B-8705	[1]	KEY-WOODRUFF
2B.	205-1322	[1]	GEAR-CAMSHAFT (100-TEETH)
3.	6V-3940 M	[2]	BOLT (M8X1.25X25-MM)
	M		METRIC PART
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP31800013

132-3844: CARRIER GP-SEAL

CARRIER GP-SEAL

132-3844 CARRIER GP-SEAL
S/N 5GG1-3442
PART OF 159-3458 ENGINE AR-COMPLETE
CANNOT BE USED WITH FLYWHEEL HOUSING

i01516221 SEBP3180

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	2W-6546	[1]	COVER
2.	247-1876	[1]	SEAL
3.	239-0583	[1]	GASKET
4.	6V-3538	[2]	DOWEL
5.	6V-3940 M	[8]	BOLT (M8X1.25X25-MM)
6.	9M-1974	[8]	WASHER-HARD (8.8X16X2-MM THK)
7.	4C-9612 B		SEALANT-SILICONE
	B		USE AS REQUIRED
	M		METRIC PART

#SEBP31800014

4W-3462: CARRIER GP-SEAL

CARRIER GP-SEAL

4W-3462 CARRIER GP-SEAL
S/N 5GG2333-UP
PART OF 159-3458, 234-2918 ENGINE AR-COMPLETE

i00379055 SEBP3180

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	2W-6546	[1]	COVER
2.	247-1876	[1]	SEAL
3.	239-0583	[1]	GASKET
4.	6V-3538	[2]	DOWEL
5.	6V-3940 M	[8]	BOLT (M8X1.25X25-MM)
6.	9M-1974	[8]	WASHER-HARD (8.8X16X2-MM THK)

	4C-9612 BF		SEALANT-SILICONE
	B		USE AS REQUIRED
	F		NOT SHOWN
	M		METRIC PART

#SEBP31800015

194-1682: COVER GP-CYLINDER BLOCK

COVER GP-CYLINDER BLOCK

194-1682 COVER GP-CYLINDER BLOCK
S/N 5GG1-UP
PART OF 159-3458, 234-2918 ENGINE AR-COMPLETE

i01521155 SEBP3180

1941682 COVER GP-CYLINDER BLOCK Parts scheme

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	517-0553 B	[1]	GASKET
2.	2W-6544	[1]	COVER
3.	357-4585	[1]	ELBOW AS
	3E-2332	[1]	ELBOW
	214-7566	[1]	SEAL-O-RING
	214-7568	[1]	SEAL-O-RING
4.	4P-5918	[3]	CLIP
5.	4P-9128	[1]	ADAPTER
6.	4Y-9652	[3]	GASKET
7.	342-4977	[3]	COVER-SIDE
8.	7W-3872	[6]	SLEEVE
9.	9X-2097 M	[1]	STUD (M8X1.25-THD)
10.	110-7618	[3]	BOLT AS
12.	210-3321 M	[1]	STUD (M8X1.25-THD)
14.	4F-9653	[1]	SEAL-O-RING
15.	5C-7261 M	[1]	NUT (M8X1.25-THD)
16.	6V-2317 M	[23]	BOLT (M8X1.25X30-MM)
17.	6V-5843 M	[2]	BOLT (M10X1.5X45-MM)
18.	8T-4224	[1]	WASHER-HARD (8.8X16X2-MM THK)
19.	9M-1974	[22]	WASHER-HARD (8.8X16X2-MM THK)
20.	398-5597	[1]	PLUG AS
	214-7568	[1]	SEAL-O-RING
	360-3692	[1]	PLUG
	B		USE AS REQUIRED
	M		METRIC PART

#SEBP31800016

118-1727: COVER GP-FRONT HOUSING

COVER GP-FRONT HOUSING

118-1727 COVER GP-FRONT HOUSING
S/N 5GG1-UP
PART OF 159-3458, 234-2918 ENGINE AR-COMPLETE

i01339642 SEBP3180

1181727 COVER GP-FRONT HOUSING Parts scheme

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5P-8245	[4]	WASHER-HARD (13.5X25.5X3-MM THK)
2.	6V-5696 M	[2]	BOLT (M12X1.75X80-MM)
3.	4W-2026	[1]	COVER
4.	135-9819	[1]	SEAL-INTEGRAL
5.	6V-8149 M	[2]	NUT (M12X1.75-THD)
	M		METRIC PART

#SEBP31800017

136-8888: COVER GP-FRONT HOUSING

COVER GP-FRONT HOUSING

136-8888 COVER GP-FRONT HOUSING
S/N 5GG1-UP
PART OF 159-3458, 234-2918 ENGINE AR-COMPLETE

i01339708 SEBP3180

1368888 COVER GP-FRONT HOUSING Parts scheme

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	6V-2317 M	[7]	BOLT (M8X1.25X30-MM)
2.	136-0823	[1]	COVER AS-FRONT
3.	8T-0100 M	[1]	BOLT (M8X1.25X60-MM)
4.	139-3526	[1]	GASKET
5.	7C-1445	[1]	COVER
6.	061-9455	[1]	SEAL-O-RING
7.	8T-4224	[2]	WASHER-HARD (8.8X16X2-MM THK)
8.	5C-7261 M	[2]	NUT (M8X1.25-THD)
	M		METRIC PART

#SEBP31800018

135-5035: COVER GP-VALVE MECHANISM

COVER GP-VALVE MECHANISM

135-5035 COVER GP-VALVE MECHANISM
S/N 5GG1-UP
PART OF 159-3458, 234-2918 ENGINE AR-COMPLETE

i01516069 SEBP3180

1355035 COVER GP-VALVE MECHANISM Parts scheme

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	167-8361	[1]	COVER AS-BASE (VALVE MECHANISM)
	5P-5678 BD		SEAL (2.1-M)
2.	2W-9499 M	[14]	BOLT (M6X1X40-MM)
3.	236-2096	[1]	COVER AS (VALVE MECHANISM)
	5P-5678 BD		SEAL (2.1-M)
4.	5P-0537	[28]	WASHER-HARD (7.2X14.5X2-MM THK)
5.	6V-7728 M	[14]	BOLT (M6X1X45-MM)
6.	2W-6225	[1]	CAP AS-OIL FILLER (ENGINE)
	B		USE AS REQUIRED
	D		ORDER BY THE METER
	M		METRIC PART

#SEBP31800019

113-6087: CRANKSHAFT GP

CRANKSHAFT GP

113-6087 CRANKSHAFT GP
S/N 5GG1-UP
PART OF 159-3459, 233-6947 ENGINE AR-CORE

i01341913 SEBP3180

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Parts for your 325C EXCAVATOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	271-5658	[1]	CRANKSHAFT AS
1A.	1B-8705	[1]	KEY-WOODRUFF
1B.	2W-8147	[1]	GEAR (50-TEETH)
2.	212-4893	[1]	BEARING-THRUST
	229-5153 AB		BEARING-THRUST (0.25-MM US)
	229-5154 AB		BEARING-THRUST (0.5-MM US)
	229-5155 AB		BEARING-THRUST (0.5-MM OS)
	229-5156 AB		BEARING-THRUST (0.5-MM OS, 0.5-MM US)
3.	107-7708	[6]	BEARING-MAIN
	145-0168 AB		BEARING-MAIN (0.5-MM OS)
	145-0170 AB		BEARING-MAIN (0.5-MM OS, 0.5-MM US)
	145-0162 AB		BEARING-MAIN (0.25-MM US)
	145-0164 AB		BEARING-MAIN (0.5-MM US)

			AVAILABLE REPAIR KIT(S):
	7C-7980 AB		SLEEVE-OIL SEAL (CRANKSHAFT)
			(THIS WEAR SLEEVE IS USED ONLY TO SALVAGE (REPAIR) THE REAR SEAL SURFACE OF THE CRANKSHAFT)
	196-9519 AB		BEARING GP-MAIN (CRANKSHAFT)
			(INCLUDES STANDARD MAIN & THRUST BEARINGS)
	A		NOT PART OF THIS GROUP
	B		USE AS REQUIRED
	R		REMANUFACTURED PART MAY BE AVAILABLE

Information:

ENGINE ARRANGEMENT

ENGINE AR

Truck Engine News

Service Magazines, Engine News, and Truck Engine News Articles Moved from Dealer.cat.com to SISweb {0374, 1000, 7000}
2015/09/23

Engine News

Improved Registration Process for Retrofit Products {1000, 7000}
2011/04/15

Service Magazines, Engine News, and Truck Engine News Articles Moved from Dealer.cat.com to SISweb {0374, 1000, 7000}
2015/09/23

Special Instruction

Piston Ring Gap Alignment Influence on High Blowby and Oil Consumption on All Engines {1000, 1215}
Piston Ring Gap Alignment Influence on High Blowby and Oil Consumption on All Engines {1000, 1215}

Technical Information Bulletin

A Recommendation for Initial Parts Stock Quantities Will Now Be Included in Service Letters{1000, 7000, 7751, 7752}
A Recommendation for Initial Parts Stock Quantities Will Now Be Included in Service Letters{1000, 7000, 7751, 7752}

Piston Ring Gap Alignment Influence on High Blowby and Oil Consumption on All Engines {1000, 1215}
Piston Ring Gap Alignment Influence on High Blowby and Oil Consumption on All Engines {1000, 1215}

368-9910 Multi-Tool Group with the 368-9911 Burn Rate Group Accuracy Issue{0599, 0701, 0702, 0706, 1000, 7610, 7620}
368-9910 Multi-Tool Group with the 368-9911 Burn Rate Group Accuracy Issue{0599, 0701, 0702, 0706, 1000, 7610, 7620}

Specifications

Engine Design
3126B Engine for Caterpillar Built Machines

Tool Operating Manual

Using the 1U-8860 Large Engine Blowby Pickup Group and the 8T-2700 Blowby/Airflow Indicator{0781, 0785, 1000}
Using the 1U-8860 Large Engine Blowby Pickup Group and the 8T-2700 Blowby/Airflow Indicator{0781, 0785, 1000}

142-6893 Adjustable Lifting Bracket Group{0599, 0629, 0632, 0701, 0717, 1000, 4000, 7000}
142-6893 Adjustable Lifting Bracket Group{0599, 0629, 0632, 0701, 0717, 1000, 4000, 7000}

Systems Operation

General Information
3126B Engines

Reuse And Salvage Guidelines

Reuse and Salvage for Mechanical Governor Groups in 3114, 3116, and 3126 Engines Equipped with Mechanical Unit Injectors (MUI) {0374, 1000, 1050, 1250, 1300}
Reuse and Salvage for Mechanical Governor Groups in 3114, 3116, and 3126 Engines Equipped with Mechanical Unit Injectors (MUI) {0374, 1000, 1050, 1250, 1300}

Reuse and Salvage Guidelines Subscriptions {0374, 0599, 1000, 7000}
Reuse and Salvage Guidelines Subscriptions {0374, 0599, 1000, 7000}

Testing and Adjusting

Engine Speed - Check
3126B Engines

Troubleshooting

Low Engine Oil Pressure
3126B Engines for the IT62G Series II Integrated Toolcarrier and for the 950G Series II and 962G Series II Wheel Loaders

Engine Stalls at Low RPM
3126B Engines for the IT62G Series II Integrated Toolcarrier and for the 950G Series II and 962G Series II Wheel Loaders

Excessive Black Smoke
3126B Engines for the IT62G Series II Integrated Toolcarrier and for the 950G Series II and 962G Series II Wheel Loaders

Low Power/Poor or No Response to Throttle
3126B Engines for 322C, 325C, and M325C Excavators and for the 325C Mobile Hydraulic Power Unit

Engine Misfires, Runs Rough or Is Unstable
3126B Engines for 322C, 325C, and M325C Excavators and for the 325C Mobile Hydraulic Power Unit

Poor Acceleration or Response
3126B Engines for 322C, 325C, and M325C Excavators and for the 325C Mobile Hydraulic Power Unit

Diagnostic Codes
3126B Engine for Caterpillar Built Machines

How To Use the Functional Tests
3126B Engines for the IT38G Series II Integrated Toolcarrier and the 938G Series II Wheel Loader

E190 Engine Overspeed Warning
3126B Engines for the IT62G Series II Integrated Toolcarrier and for the 950G Series II and 962G Series II Wheel Loaders

Diagnostic Codes
3126B Engines for the IT38G Series II Integrated Toolcarrier and the 938G Series II Wheel Loader

Low Power/Poor or No Response to Throttle
3126B Engines for the IT62G Series II Integrated Toolcarrier and for the 950G Series II and 962G Series II Wheel Loaders

Excessive White Smoke
3126B Engines for 322C, 325C, and M325C Excavators and for the 325C Mobile Hydraulic Power Unit

Engine Vibration
3126B Engines for the IT62G Series II Integrated Toolcarrier and for the 950G Series II and 962G Series II Wheel Loaders

Excessive Fuel Consumption
3126B Engines for 322C, 325C, and M325C Excavators and for the 325C Mobile Hydraulic Power Unit

Engine Cranks but Will Not Start
3126B Engines for 322C, 325C, and M325C Excavators and for the 325C Mobile Hydraulic Power Unit

Poor Acceleration or Response
3126B Engines for the IT62G Series II Integrated Toolcarrier and for the 950G Series II and 962G Series II Wheel Loaders

Engine Will Not Crank
3126B Engines for 322C, 325C, and M325C Excavators and for the 325C Mobile Hydraulic Power Unit

Engine Will Not Crank
3126B Engines for the IT62G Series II Integrated Toolcarrier and for the 950G Series II and 962G Series II Wheel Loaders

Service Magazine

A New Screen In The TMI System Provides The Status Of Emission Certification Of Engines {1000}
2001/01/08

Caterpillar's Position On The Use Of Biodiesel Fuel In Caterpillar Engines {1000}
2012/09/17

A List Of Contacts For Caterpillar Product Support Is Available {1000, 4450, 7000}
2002/03/25

Responsibilities for Emission Certified Engines {1000}
2005/10/03

Proper Long Term Storage of Caterpillar Products {0355, 1000, 7000}
2009/04/27

Changes To Caterpillar Incident Reporting Field Use Form And DSN Incident Report Entry Screens {1000, 7000}
2009/11/18

Redesigned Fluid Sampling Valves Are Now Available for All Cat Products {7542}
2011/02/11

Improved Registration Process for Retrofit Products {1000, 3000, 7000, 7570}
2011/02/17

TA2 (Technical Analysis) Inspections are Now Available on SIS {0372, 1000, 7000, 753T, 7565}
2013/01/10