2W-9054 PISTON & ROD GP S/N 48W34025-UP 15.6:1 RATIO PART OF 136-6928, 2W-0988 ENGINE AR 988B WHEEL LOADER

BASIC ENGINE

PISTON & ROD GP

0. 2W-9054 PISTON & R
1. 7N-3518 PISTON & R
2. 2W-9053 PISTON GP

CYLINDER BLOCK GP

3. 126-7278 PLUG GP-CY

CYLINDER HEAD GP

4. 124-4456 PLUG GP-CY

PULLEY GP

5. 6N-5925 PULLEY GP-

VALVE MECHANISM GP

6. 107-1954 ROCKER ARM
7. 4N-1718 ROCKER ARM
8. 4N-1718 ROCKER ARM

CRANKSHAFT GP

9. 319-0785 SEAL GP-CR
0. INFORMATION

WHEEL LOADER 988B WHEEL LOADER 50W
988B Wheel Loader 50W06041-UP (MACHINE) POWERED BY 3408 Engine SEBP1388 988B 50W (1976)

BASIC ENGINE

PISTON & ROD GP

192-8808 PISTON & ROD GP

2W-9054 PISTON & ROD GP

7N-3518 PISTON & ROD GP

2W-9053 PISTON GP

#SEBP13880100

2W-9054: PISTON & ROD GP

PISTON & ROD GP

2W-9054 PISTON & ROD GP
S/N 48W34025-UP
15.6:1 RATIO
PART OF 136-6928, 2W-0988 ENGINE AR

i00107877 SEBP1388

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Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8N-1608	[1]	PIN-PISTON
2.	7E-5665 CN	[2]	RETAINER-PIN
3.	160-8178 C	[1]	ROD AS-CONNECTING
3A.	4P-8495 N	[1]	BUSHING
3B.	8L-3441	[2]	NUT (9/16-18-THD)
3C.	6N-8942	[2]	BOLT-CONNECTING ROD
4.	328-5574 CH	[1]	BEARING-CONNECTING ROD (STANDARD)
	4W-5702 ABJ		BEARING-CONNECTING ROD (0.635-MM US)
	4W-5703 ABL		BEARING-CONNECTING ROD (1.27-MM US)
5.	9Y-7212 N	[1]	BODY AS-PISTON
6.	134-3761 CN	[1]	RING-PISTON (TOP)
7.	2P-2817 CN	[1]	RING-PISTON (INTERMEDIATE)
8.	7N-7078 CN	[1]	RING-PISTON (OIL CONTROL)

			AVAILABLE REPAIR KIT(S):
	9Y-6188 ABHPS	[1]	KIT-ROD BEARING (STANDARD)
	9Y-6189 ABJPS	[1]	KIT-ROD BEARING (0.635-MM US)
	9Y-6190 ABLPS	[1]	KIT-ROD BEARING (1.27-MM US)
	442-5359 ABN	[1]	KIT-CYLINDER PACK
			(INCLUDES RINGS, BUSHING, PISTON BODY ASSEMBLY, RETAINER, LINER, SINGLE CYLINDER LINER GASKET KIT)
	A		NOT PART OF THIS GROUP
	B		USE AS REQUIRED
	C		CHANGE FROM PREVIOUS TYPE
	H		KIT MARKED H INCLUDES SIX OF PART MARKED H
	J		KIT MARKED J INCLUDES SIX OF PART MARKED J
	L		KIT MARKED L INCLUDES SIX OF PART MARKED L
	N		KIT MARKED N SERVICES PART(S) MARKED N
	P		QTY OF 2 KITS REQUIRED FOR 3412 ENGINE
	R		REMANUFACTURED PART MAY BE AVAILABLE
	S		NOT FOR USE WITH 3408 ENGINE

#SEBP13880101

7N-3518: PISTON & ROD GP

PISTON & ROD GP

7N-3518 PISTON & ROD GP
S/N 48W14354-17624
15.6:1 RATIO
PART OF 8N-1843 ENGINE AR

i00108187 SEBP1388

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Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8N-1608 C	[1]	PIN-PISTON
2.	8N-7295 C	[2]	RETAINER-PIN
3.	8N-1728 C	[1]	ROD AS-CONNECTING
	8N-2018	[1]	BUSHING
4.	6N-8942	[2]	BOLT-CONNECTING ROD
	8L-3441	[2]	NUT (9/16-18-THD)
5.	1W-7524 C	[1]	BEARING (STANDARD)
	8N-5427 ABC		BEARING-CONNECTING ROD (.64MM)
	8N-5428 ABC		BEARING-CONNECTING ROD (1.27MM)
6.	8N-1496 C	[1]	PISTON GP
7.	7N-7078 J	[1]	RING-PISTON (OIL CONTROL)
8.	2P-2817 J	[1]	RING-PISTON (INTERMEDIATE)
9.	8N-0502 J	[1]	RING-PISTON (TOP)

			AVAILABLE REPLACEMENT PART(S):
	8N-0822		RING GP-PISTON
			(CONSISTS OF COMPLETE SET OF RINGS FOR ONE PISTON)
	A		NOT PART OF THIS GROUP
	B		USE AS REQUIRED
	C		CHANGE FROM PREVIOUS TYPE
	J		PART(S) MARKED J INCLUDED IN 8N-0822
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP13880102

2W-9053: PISTON GP

PISTON GP

2W-9053 PISTON GP
S/N 48W17625-34024
PART OF 2W-9054 PISTON & ROD GP

i00107875 SEBP1388

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Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	2W-0865	[1]	PISTON AS
			-OR-
	9Y-7212 J	[1]	BODY AS-PISTON
2.	1W-9460	[1]	RING-PISTON (TOP)
3.	2P-2817	[1]	RING-PISTON (INTERMEDIATE)
4.	7N-7078	[1]	RING-PISTON (OIL CONTROL)
	1W-8922 FA	[1]	RING GP-PISTON (STANDARD)
			(CONSISTS OF A COMPLETE SET OF RINGS FOR ONE PISTON)

			AVAILABLE REPAIR KIT(S):
	442-5359 ABJ	[1]	KIT-CYLINDER PACK
			(INCLUDES RINGS, BUSHING, PISTON BODY ASSEMBLY, RETAINER, LINER, SINGLE CYLINDER LINER GASKET KIT)
	A		NOT PART OF THIS GROUP
	B		USE AS REQUIRED
	F		NOT SHOWN
	J		KIT MARKED J SERVICES PART(S) MARKED J
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP13880103

126-7278: PLUG GP-CYLINDER BLOCK

PLUG GP-CYLINDER BLOCK

126-7278 PLUG GP-CYLINDER BLOCK
S/N 48W14354-UP
PART OF 225-0399 ENGINE AR

i00166839 SEBP1388

1267278 PLUG GP-CYLINDER BLOCK Parts scheme

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Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9S-4190	[2]	PLUG-O-RING (7/8-14-THD)
2.	6V-4589	[2]	SEAL-O-RING
3.	7W-6534	[6]	PLUG-PIPE
4.	8T-6757	[2]	PLUG-PIPE

#SEBP13880104

124-4456: PLUG GP-CYLINDER HEAD

PLUG GP-CYLINDER HEAD

124-4456 PLUG GP-CYLINDER HEAD
S/N 48W14354-UP
PART OF 225-0399 ENGINE AR

i00089919 SEBP1388

1244456 PLUG GP-CYLINDER HEAD Parts scheme

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Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	8T-6762	[6]	PLUG-PIPE (1/2-14-THD)(1/2-14 NPTF THD)
2.	7X-7731	[2]	PLUG-PIPE (3/4-14-THD)
3.	5P-0063	[3]	PLUG-CUP
4.	4N-0932	[2]	PLUG-CUP

#SEBP13880105

6N-5925: PULLEY GP-CRANKSHAFT

PULLEY GP-CRANKSHAFT

6N-5925 PULLEY GP-CRANKSHAFT
S/N 50W6041-99999
PART OF 8N-1844 CONFIGURATION AR

i00093431 SEBP1388

6N5925 PULLEY GP-CRANKSHAFT Parts scheme

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Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name	Comments
1.	6N-5300	[1]	PULLEY-CRANKSHAFT
2.	8T-9393	[4]	BOLT (5/8-11X1.5-IN)

#SEBP13880106

107-1954: ROCKER ARM GP

ROCKER ARM GP

107-1954 ROCKER ARM GP
S/N 48W14354-UP
PART OF 108-1551 VALVE MECHANISM GP

i00089844 SEBP1388

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Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	134-2263	[2]	RING-RETAINING
2.	2N-7228	[2]	WASHER (1X1.5X0.03-IN THK)
3.	4N-5614	[2]	ROCKER ARM AS
4.	336-6781	[2]	SCREW (3/8-24X4.78-IN)
5.	9L-7712	[2]	NUT (3/8-24-THD)
6.	122-0163	[1]	BRACKET-SHAFT
7.	6V-3536	[2]	DOWEL
8.	135-3225	[1]	SHAFT AS
	2D-6642 F	[2]	BALL
	F		NOT SHOWN
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP13880107

4N-1718: ROCKER ARM GP

ROCKER ARM GP

4N-1718 ROCKER ARM GP
S/N 48W14354-20786
PART OF 4N-4298 VALVE MECHANISM GP

i00107911 SEBP1388

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Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	006-7403 C	[2]	RING-RETAINING
2.	2N-7228	[4]	WASHER (1X1.5X0.03-IN THK)
3.	4N-0955	[2]	DOWEL
4.	2N-7229	[3]	SPRING
5.	4N-1106	[1]	SHAFT AS-ROCKER ARM
6.	0L-1022 C	[2]	PLUG-CUP
7.	7N-1198 C	[3]	BRACKET
8.	4N-5614	[8]	ROCKER ARM AS
9.	1A-2935	[8]	SCREW
10.	9L-7712	[8]	NUT (3/8-24-THD)
11.	7N-0839 C	[1]	BRACKET AS
12.	2D-6642 C	[2]	BALL (6.35-MM DIA)
			-OR-
	2D-6642 C	[1]	BALL (6.35-MM DIA)
	4B-9880 C	[1]	BALL (7.93-MM DIA)
	C		CHANGE FROM PREVIOUS TYPE
	R		REMANUFACTURED PART MAY BE AVAILABLE

#SEBP13880108

4N-1718: ROCKER ARM GP

ROCKER ARM GP

4N-1718 ROCKER ARM GP
S/N 48W20787-99999
PART OF 4N-4298 VALVE MECHANISM GP

i00107912 SEBP1388

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Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	006-7403	[2]	RING-RETAINING
2.	2N-7228	[4]	WASHER (1X1.5X0.03-IN THK)
3.	4N-0955	[2]	DOWEL
4.	2N-7229	[3]	SPRING
5.	4N-1106	[1]	SHAFT AS-ROCKER ARM
6.	0L-1022	[2]	PLUG-CUP
7.	9Y-4384 C	[3]	BRACKET-SHAFT
8.	4N-5614	[8]	ROCKER ARM AS
9.	336-6781	[8]	SCREW (3/8-24X4.78-IN)
10.	9L-7712	[8]	NUT (3/8-24-THD)
11.	9Y-4385 C	[1]	BRACKET AS
	2D-6642	[1]	BALL (6.35-MM DIA)
12.	4B-9880	[1]	BALL (7.93-MM DIA)
	C		CHANGE FROM PREVIOUS TYPE
	R		REMANUFACTURED PART MAY BE AVAILABLE