257-9581 VALVE GP-PUMP CONTROL PART OF 397-1516, 452-6240 PUMP GP-PISTON ALSO AN ATTACHMENT 903C2 COMPACT WHEEL LOADER

HYDRAULIC SYSTEM

PUMP GP

0. 257-9581 VALVE GP-P

VALVE GP-RELIEF

1. 257-9624 VALVE GP-R

VALVE GP-SOLENOID

2. 258-0014 VALVE GP-S

STEERING SYSTEM

CYLINDER GP

3. 396-7811 CYLINDER G

LINES GP

4. 396-7823 LINES GP-S
5. 434-7407 LINES GP-S

CYLINDER GP

6. 396-7740 MOUNTING G

PUMP GP-METERING

7. 396-7813 PUMP & MTG
8. 229-3787 PUMP GP-ME

STEERING COLUMN GP

9. 456-8358 STEERING C
0. INFORMATION

COMPACT WHEEL LOADER 903C2 COMPACT WHEEL LOADER MW8
903C2 Compact Wheel Loader MW800001-UP (MACHINE) POWERED BY C2.4 Engine SEBP7662 903C2 MW8 (2015)

HYDRAULIC SYSTEM

PUMP GP

258-0006 COVER GP-PUMP

257-9612 HEAD GP-PUMP

452-6238 PUMP & MTG GP-PISTON

456-7220 PUMP & MTG GP-PISTON

229-5268 PUMP GP-GEAR

397-1516 PUMP GP-PISTON

452-6240 PUMP GP-PISTON

257-9560 ROTATING GP-PUMP

257-9581 VALVE GP-PUMP CONTROL

#SEBP76620350

257-9581: VALVE GP-PUMP CONTROL

VALVE GP-PUMP CONTROL

257-9581 VALVE GP-PUMP CONTROL
PART OF 397-1516, 452-6240 PUMP GP-PISTON
ALSO AN ATTACHMENT

i05349184 SEBP7662

2579581 VALVE GP-PUMP CONTROL Parts scheme

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Parts for your 903C2 COMPACT WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.		[1]	PISTON-STROKING
2.		[1]	ROD
3.		[2]	RING
4.		[2]	RING
5.		[2]	RING
6.		[2]	RING
7.		[2]	RING
8.		[2]	RING
9.		[2]	RING
10.		[2]	RING
11.	257-9592	[2]	RING AS
12.		[2]	RETAINER-SPRING
13.		[2]	SPACER
14.		[2]	SPACER
15.		[2]	SPACER
16.		[2]	SPACER
17.	257-9598	[2]	SPACER
18.		[2]	SPACER
19.		[2]	SPRING
20.		[2]	SPRING
21.		[2]	RETAINER-SPRING
22.		[2]	SEAL
23.		[1]	SEAL-O-RING
24.		[1]	COVER
25.		[1]	COVER
26.		[1]	NUT
27.	150-0845	[8]	BOLT
28.		[2]	SEAL-O-RING
29.		[2]	RING-WEAR
30.		[2]	RING

#SEBP76620351

257-9624: VALVE GP-RELIEF

VALVE GP-RELIEF

257-9624 VALVE GP-RELIEF -OVERRIDE
PART OF 257-9612 HEAD GP-PUMP
ALSO AN ATTACHMENT

i05349194 SEBP7662

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Parts for your 903C2 COMPACT WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.		[1]	SCREW
2.		[1]	VALVE
3.		[1]	CONTROL-PISTON
4.		[1]	PISTON
5.		[1]	PISTON
6.		[1]	SEAT
7.		[1]	SPRING
8.		[2]	RETAINER-SPRING
9.		[1]	SCREW-ADJUSTMENT
10.	257-9634	[1]	SEAL-O-RING
11.	5W-9420 M	[1]	LOCKNUT (M8X1.25-THD)
12.	257-9636	[1]	SEAL-O-RING
	M		METRIC PART

#SEBP76620352

258-0014: VALVE GP-SOLENOID

VALVE GP-SOLENOID

258-0014 VALVE GP-SOLENOID -PISTON PUMP
PART OF 397-1516, 452-6240 PUMP GP-PISTON
ALSO AN ATTACHMENT

i05349196 SEBP7662

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Parts for your 903C2 COMPACT WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.		[1]	BODY
2.		[2]	RETAINER-SPRING
3.	106-5618	[2]	SPRING
4.		[1]	PLUG
5.	134-7515	[3]	PLUG
6.	209-3565	[1]	SEAL
7.		[3]	BOLT
8.		[2]	BOLT
9.		[1]	SEAL-O-RING
10.	258-0024	[1]	SOLENOID AS-VALVE (PISTON PUMP)

#SEBP76620353

396-7811: CYLINDER GP-STEERING

CYLINDER GP-STEERING

396-7811 CYLINDER GP-STEERING
60-MM (2.4-IN) BORE X 260-MM (10.6-IN) STROKE
PART OF 454-0461, 484-7004 HYDRAULIC AR
ALSO AN ATTACHMENT

i05266453 SEBP7662

3967811 CYLINDER GP-STEERING Parts scheme

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Parts for your 903C2 COMPACT WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8T-4200 M	[1]	BOLT (M8X1.25X16-MM)
2.	6V-8397 J	[3]	SEAL-O-RING
3.	095-1616	[1]	SEAL-O-RING
4.	095-1706 J	[1]	SEAL-O-RING
5.	250-8726 J	[4]	SEAL-LIP TYPE
6.	J	[1]	RING-BACKUP
7.		[1]	RING-RETAINING
8.		[1]	HEAD
9.		[1]	PISTON
10.	J	[1]	RING-WEAR
11.	435-0773 J	[1]	RING-PISTON
12.	J	[1]	SEAL-U-CUP
13.	435-0774	[1]	BUSHING
14.	435-0775 J	[1]	SEAL-DUST
15.		[1]	NUT
16.	435-0777	[1]	CYLINDER AS
17.	435-0778	[1]	ROD AS
18.	435-0740	[2]	BUSHING
19.	435-0779	[1]	TUBE AS
20.	8T-4224	[1]	WASHER-HARD (8.8X16X2-MM THK)

			AVAILABLE REPAIR KIT(S):
	435-0780 J	[1]	KIT-SEAL
			(INCLUDES O-RING SEAL)
	J		KIT MARKED J SERVICES PART(S) MARKED J
	M		METRIC PART

#SEBP76620354

396-7823: LINES GP-STEERING

LINES GP-STEERING

396-7823 LINES GP-STEERING
PART OF 454-0461, 484-7004 HYDRAULIC AR
ALSO AN ATTACHMENT

i05254369 SEBP7662

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Parts for your 903C2 COMPACT WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	6V-0852	[1]	CAP-DUST
2.	172-5761	[1]	TEE AS
	3K-0360	[1]	SEAL-O-RING
	6V-8398	[1]	SEAL-O-RING
	126-8306		TEE-O-RING
3.	425-3333 I	[1]	HOSE AS
4.	444-3256 I	[1]	HOSE AS
5.	150-3072	[1]	PLUG AS
	6V-8398	[1]	SEAL-O-RING
	6V-9509	[1]	PLUG (13/16-16-THD)
6.	150-3715 M	[1]	BOLT (M12X1.25X25-MM)
7.	164-5567	[1]	COUPLER AS-QUICK DISCONNECT (MALE)
	6V-3965	[1]	FITTING (QUICK DISCONNECT)
	214-7568	[1]	SEAL-O-RING
8.	168-1968	[1]	TEE AS
	3J-1907	[1]	SEAL-O-RING
	6V-8397	[1]	SEAL-O-RING
	126-6872	[1]	TEE
9.	5G-3676	[1]	GROMMET
10.	8T-1889	[1]	CLIP (SLOT)
11.	8T-1890	[1]	CLIP (TAB)
12.	8T-4223	[1]	WASHER-HARD (13.5X25.5X3-MM THK)
13.	7I-1024 E		GUARD-HOSE (50-CM)
13A.	7I-1024 E		GUARD-HOSE (22-CM)
14.	444-2025 I	[1]	HOSE AS
15.	266-7379	[1]	STRAP-CABLE
16.	091-0081	[1]	SPACER (10.5X20X10-MM THK)
17.	8S-0948	[1]	CLIP
18.	3S-2093	[1]	STRAP-CABLE
19.	1S-0994	[1]	CLIP (LOOP)
	E		ORDER BY THE CENTIMETER
	I		REFER TO HYDRAULIC INFORMATION SYSTEM
	M		METRIC PART

#SEBP76620355

434-7407: LINES GP-STEERING

LINES GP-STEERING

434-7407 LINES GP-STEERING
PART OF 461-2999, 461-3038, 461-3041, 485-0665 CAB AR-ENCLOSED ROPS, 485-0669 CANOPY AR, 480-9020 PLATFORM AR
AN ATTACHMENT

i05297456 SEBP7662

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Parts for your 903C2 COMPACT WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7K-1181	[1]	STRAP-CABLE
2.	397-5532 I	[1]	HOSE AS
3.	397-5533 I	[1]	HOSE AS
4.	148-8318	[1]	CONNECTOR AS
	3K-0360	[1]	SEAL-O-RING
	6V-8397	[1]	SEAL-O-RING
	6V-8634	[1]	CONNECTOR
5.	148-8336	[2]	CONNECTOR AS
			(EACH INCLUDES)
	3J-1907	[1]	SEAL-O-RING
	6V-8397	[1]	SEAL-O-RING
	6V-8636	[1]	CONNECTOR
6.	148-8367	[1]	ELBOW AS
	6V-8397	[1]	SEAL-O-RING
	6V-9850	[1]	ELBOW
7.	148-8374	[1]	ELBOW AS
	3K-0360	[1]	SEAL-O-RING
	6V-8397	[1]	SEAL-O-RING
	6V-8723	[1]	ELBOW
8.	198-4777	[1]	WASHER-HARD (11X25X10-MM THK)
9.	2V-1771	[2]	GROMMET
10.	8T-1887	[2]	CLIP (SLOT)
11.	8T-1888	[2]	CLIP (TAB)
12.	8T-4121	[2]	WASHER-HARD (11X21X2.5-MM THK)
13.	8T-4133 M	[1]	NUT (M10X1.5-THD)
14.	8T-4182 M	[1]	BOLT (M10X1.5X45-MM)
15.	7I-7439 E		GUARD-HOSE (54-CM)
15A.	7I-7439 E		GUARD-HOSE (56-CM)
	E		ORDER BY THE CENTIMETER
	I		REFER TO HYDRAULIC INFORMATION SYSTEM
	M		METRIC PART

#SEBP76620356

396-7740: MOUNTING GP-STEERING CYLINDER

MOUNTING GP-STEERING CYLINDER

396-7740 MOUNTING GP-STEERING CYLINDER
PART OF 454-5098, 484-6996 CHASSIS AR
ALSO AN ATTACHMENT

i05254296 SEBP7662

3967740 MOUNTING GP-STEERING CYLINDER Parts scheme

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Parts for your 903C2 COMPACT WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	175-1794 B	[4]	SHIM (0.5-MM THK)
2.	175-1795 B	[2]	SHIM (1-MM THK)
3.	227-3561	[2]	PLATE
4.	253-4906	[1]	PIN AS
5.	277-9394	[1]	PIN AS
6.	8T-4121	[4]	WASHER-HARD (11X21X2.5-MM THK)
7.	8T-4137 M	[4]	BOLT (M10X1.5X20-MM)
	B		USE AS REQUIRED
	M		METRIC PART

#SEBP76620357

396-7813: PUMP & MTG GP-METERING

PUMP & MTG GP-METERING

396-7813 PUMP & MTG GP-METERING -HMU
PART OF 454-0461, 484-7004 HYDRAULIC AR
ALSO AN ATTACHMENT

i05273604 SEBP7662

3967813 PUMP & MTG GP-METERING Parts scheme

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Parts for your 903C2 COMPACT WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	229-3787 Y	[1]	PUMP GP-METERING (HMU)
2.	8T-4136 M	[3]	BOLT (M10X1.5X25-MM)
3.	8T-4896	[3]	WASHER-HARD (10.2X18.5X2.5-MM THK)
	M		METRIC PART
	Y		SEPARATE ILLUSTRATION

#SEBP76620358

229-3787: PUMP GP-METERING

PUMP GP-METERING

229-3787 PUMP GP-METERING -HMU
PART OF 396-7813 PUMP & MTG GP-METERING
ALSO AN ATTACHMENT

i05732085 SEBP7662

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Parts for your 903C2 COMPACT WHEEL LOADER:

CATERPILLAR SIS

Part No	Qty	Parts name

		AVAILABLE REPAIR KIT(S):
077-8345	[1]	KIT-BEARING
		(INCLUDES RACES & BEARING)
254-7527	[1]	KIT-SEAL
		(INCLUDES O-RING SEALS, SEAL & LIP TYPE SEAL)

#SEBP76620359

456-8358: STEERING COLUMN GP

STEERING COLUMN GP

456-8358 STEERING COLUMN GP -TILT
PART OF 461-2986 CONTROL GP-STEERING
AN ATTACHMENT

i06210125 SEBP7662

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Parts for your 903C2 COMPACT WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	149-0777	[1]	KNOB
2.	169-3261 M	[1]	NUT (M18X1.5-THD)
3.	489-6753	[1]	KIT-TILT LEVER
4.	319-9510	[1]	SPRING AS-GAS (STEERING COLUMN)
5.	457-0050	[1]	KIT-STEERING COLUMN
6.	457-0051	[1]	CLAMP
7.	457-0052	[1]	KIT-HORN
8.	457-0053	[1]	KIT-PIN
	M		METRIC PART

Information:

HYDRAULIC SYSTEM

PUMP GP

Special Instruction

Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}

Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}

Vane Type Hydraulic Pump Identification Guidelines {5055}
Vane Type Hydraulic Pump Identification Guidelines {5055}

Technical Information Bulletin

Engine May Surge on Certain 903C2 Compact Wheel Loaders {1000, 5070}
Engine May Surge on Certain 903C2 Compact Wheel Loaders {1000, 5070}

Hydrostatic Piston Pump Group May Surge on Certain 903C2 and 903D Compact Wheel Loaders {5070}
Hydrostatic Piston Pump Group May Surge on Certain 903C2 and 903D Compact Wheel Loaders {5070}

Specifications

Piston Pump (Hydrostatic)
901C, 901C2, 902C, 902C2, 903C and 903C2 Compact Wheel Loaders Hydraulic and Steering System

Relief Valve
901C, 901C2, 902C, 902C2, 903C and 903C2 Compact Wheel Loaders Hydraulic and Steering System

Systems Operation

Gear Pump - Steering/Implement/Charge
901C, 901C2, 902C, 902C2, 903C and 903C2 Compact Wheel Loaders Hydraulic and Steering System

Reuse And Salvage Guidelines

Vane Type Hydraulic Pumps {5055}
Vane Type Hydraulic Pumps {5055}

Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}

Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}

Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}

Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}

Vane Type Hydraulic Pump Identification Guidelines {5055}
Vane Type Hydraulic Pump Identification Guidelines {5055}

General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}

Bench Test Procedures

Bench Test Procedure for Gear Pumps {5073}
Bench Test Procedure for Gear Pumps {5073}

Bench Test Procedure for Vane Pumps {5055}
Bench Test Procedure for Vane Pumps {5055}

Caterpillar Parts SIS Catalog 903C2 :

441-7699 VALVE GP-MAIN CONTROL

441-7698 VALVE GP-MAIN CONTROL

460-0243 VALVE GP-CONTROL

460-0242 VALVE GP-CONTROL

460-0241 VALVE GP-CONTROL

460-0232 VALVE GP-CONTROL

460-0231 VALVE GP-CONTROL

257-9616 VALVE GP-CHECK

257-9624 VALVE GP-RELIEF

258-0014 VALVE GP-SOLENOID

396-7811 CYLINDER GP-STEERING

396-7823 LINES GP-STEERING

434-7407 LINES GP-STEERING

396-7740 MOUNTING GP-STEERING CYLINDER

396-7813 PUMP & MTG GP-METERING

229-3787 PUMP GP-METERING