FUEL RATIO CONTROL D334 MARINE ENGINE

Pos.	Part No	Qty	Parts name	Comments
		[1]	PLUG
		[1]	TEE
		[1]	HOSE ASSEM.
		[1]	ELBOW
		[1]	GASKET
		[1]	DOWEL
		[1]	COVER
		[3]	BOLT
		[3]	LOCKWASHER
		[1]	SPRING
		[1]	WASHER
		[2]	BOLT (.875" Long)
		[2]	BOLT (2.25" Long)
		[4]	LOCKWASHER
		[1]	COVER
		[1]	HOUSING
		[1]	SPRING
		[1]	BOLT
		[1]	GASKET
		[1]	RETAINER
		[1]	DIAPHRAGM

#UE0700780031

FUEL INJECTION PUMP AND GOVERNOR

FUEL INJECTION PUMP AND GOVERNOR
7L2081 GOVERNOR GROUP AND 4S6902 FUEL INJECTION PUMP
GROUP PARTS ARE SHOWN ON PAGES 30, 31 AND 35

c100720 UE070078

None FUEL INJECTION PUMP AND GOVERNOR Parts scheme

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Parts for your D334 MARINE ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7L-2081 Y	[1]	GOVERNOR GROUP
			(See Separate Illustration)
2.	8M-9141	[1]	SPRING
3.	1B-7182	[2]	BOLT
4.	3B-4505	[6]	LOCKWASHER
5.	4S-6902 Y	[1]	FUEL INJECTION PUMP GROUP
			(See Separate Illustration)
6.	2B-2694	[1]	BOLT
7.	3S-9300	[1]	GASKET
8.	1B-9575	[3]	BOLT
	Y		SEPARATE ILLUSTRATION

#UE0700780032

7L-2081: GOVERNOR GROUP

GOVERNOR GROUP

7L2081 GOVERNOR GROUP--PART 1 OF 2
PART OF FUEL INJECTION PUMP AND GOVERNOR SHOWN ON PAGE 29

c100718 UE070078

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Parts for your D334 MARINE ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
5L-8997	[1]	SCREW (LOW IDLE)
2J-0157	[1]	SEAL
9M-9187	[1]	PLUNGER
9M-4690	[1]	PLUG
9F-4522	[1]	GASKET
1S-9312	[1]	SPRING
5L-9018	[2]	SCREW
1H-5089	[2]	LOCKWASHER
6L-1756	[1]	BOLT
4B-9747	[1]	WASHER
2S-7464	[1]	COVER
5L-8925	[1]	GASKET
4K-0897	[1]	INSULATOR
2S-7307	[1]	INSULATOR
3L-5924	[1]	SHAFT
4B-2042	[2]	NUT
8H-0878	[1]	LOCKWASHER
4B-4273	[4]	WASHER
0S-1347	[2]	BOLT
4B-9747	[2]	WASHER
2S-7466	[1]	SPACER
2S-7465	[1]	SCREW
5L-8996	[1]	SCREW (HIGH IDLE)
2J-0157	[1]	SEAL

#UE0700780033

7L-2081: GOVERNOR GROUP

GOVERNOR GROUP

7L2081 GOVERNOR GROUP--PART 2 of 2
PART OF FUEL INJECTION PUMP AND GOVERNOR SHOWN ON PAGE 29
REFER ALSO TO PAGE 49 FOR SPECIAL PARTS

c100719 UE070078

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Parts for your D334 MARINE ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
9M-9788	[1]	PLUNGER
4L-9971	[1]	SPRING
5H-1351	[1]	PIN
1D-4533	[1]	BOLT
3B-4504	[1]	LOCKWASHER
1A-8912	[1]	WASHER
5L-8991	[1]	GASKET
5L-8992	[1]	COVER
6L-1559	[2]	BOLT (DRILLED HOLE)
4B-9747	[2]	WASHER
3S-9640	[1]	LEVER ASSEM.
1S-0219	[1]	BOLT
2F-4159	[1]	LOCK
9M-4704	[1]	SCREW
2S-7487	[1]	GASKET
5L-8995	[1]	COLLAR
5L-8988	[1]	LEVER
2M-2489	[1]	SEAL
0S-1614	[4]	BOLT
1S-7336	[2]	LOCK
		(PARTS OF COVER ASSEM. 2S8879)
2S-8879	[1]	COVER ASSEM.
8B-2377	[2]	BOLT
1B-4330	[2]	NUT
3B-4504	[2]	LOCKWASHER
8L-4339	[1]	GASKET
5L-8987	[1]	LEVER
		(PART OF COVER ASSEM. 2S8879)
5L-8994	[1]	PLATE
4B-4550	[1]	FITTING
		(PART OF COVER ASSEM. 2S8879)
2M-2489	[1]	SEAL
5H-9899	[1]	RING
6L-1968	[1]	BEARING
5L-8990	[1]	SHAFT
		(PARTS OF COVER ASSEM. 2S8879)
6L-1597	[1]	GASKET
3L-5987	[1]	COVER
8H-9180	[1]	SEAL
8M-6503	[2]	BUSHING
		(PARTS OF HOUSING ASSEM. 3S9114)
5S-5060	[1]	WEIGHT ASSEM.
2S-0101	[2]	WEIGHT
1S-5440	[2]	DOWEL
		(PARTS OF WEIGHT ASSEM. 5S5060)
8M-8726	[1]	DOWEL
7M-7219	[1]	BEARING
2S-0007	[1]	SLEEVE
3K-0810	[1]	RING
7B-8105	[1]	LOCK
8M-8997	[1]	SEAL
5S-5961	[1]	PISTON AND VALVE ASSEM.
7L-8777	[1]	SLEEVE
1S-4741	[1]	CYLINDER
0S-1615	[3]	BOLT
9M-6293	[1]	LOCK
7M-7193	[2]	RACE
8M-8993	[1]	RING
9M-6303	[1]	SPRING
9M-6302	[2]	WASHER
2S-0008	[1]	SEAT
3S-9639	[1]	SEAT ASSEM.
8H-9181	[1]	SPRING
8M-8739	[1]	BOLT
3S-9114	[1]	HOUSING ASSEM.
8M-8403	[1]	GUIDE
		(PART OF HOUSING ASSEM. 3S9114)
9F-2247	[1]	PLUG

#UE0700780034

RACK STOP

c100732 UE070078

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Parts for your D334 MARINE ENGINE:

CATERPILLAR SIS

Pos.	Qty	Parts name
1.	[2]	BOLT
2.	[1]	RETAINER
3.	[2]	SPACER (.032" Thick)
4.	[1]	BAR
5.	[2]	SHIM (.064" Thick)
	[5]	SHIM (.002" Thick)
	[4]	SHIM (.010" Thick)
	[1]	SHIM (.030" Thick)
6.	[2]	INSULATOR
7.	[1]	CONTACT
8.	[1]	LOCK

#UE0700780035

7S-4447: FUEL TRANSFER PUMP GROUP

FUEL TRANSFER PUMP GROUP

7S4447 FUEL TRANSFER PUMP GROUP

c100695 UE070078

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Parts for your D334 MARINE ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	2F-8616	[1]	NUT
2.	8H-9806	[1]	GEAR
3.	7S-4445	[1]	SHAFT ASSEM.
4.	6J-2419	[2]	SEAL
5.	7S-2374	[1]	GASKET
6.	7S-4428	[1]	GEAR
7.	7B-6368	[1]	BALL
8.	7S-4442	[1]	SPRING
9.	4F-9325	[1]	GASKET
10.	4S-6464	[1]	BOLT
11.	7S-5053	[1]	COVER ASSEM.
12.	7H-3171	[1]	PLUG
13.	1T-0099	[1]	PIN
			(Parts of 7S5053 Cover Assem.)
14.	1B-9575	[6]	BOLT
	3B-4505	[6]	LOCKWASHER
16.	7S-4434	[1]	BODY ASSEM.
17.	2S-6838	[1]	SHAFT
18.	8F-6058	[1]	BUSHING
			(Parts of 7S4434 Body Assem.)
19.	7S-4439	[1]	RING
20.	7S-4437	[1]	CAGE ASSEM.
21.	8F-6058	[1]	BUSHING
			(Part of 7S4437 Cage Assem.)
22.	3H-1489	[1]	KEY

#UE0700780036

FUEL FILTER AND PRIMING PUMP

FUEL FILTER AND PRIMING GROUP
9H2256 FUEL PRIMING PUMP ASSEMBLY PARTS ARE SHOWN ON PAGE 34

c100715 UE070078

None FUEL FILTER AND PRIMING PUMP Parts scheme

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Parts for your D334 MARINE ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9H-2256 Y	[1]	PUMP ASSEM.
			(See Separate Illustration)
2.	1B-7182	[6]	BOLT
3.	3B-4505	[9]	LOCKWASHER
4.	1B-9575	[2]	BOLT
5.	4B-4277	[2]	WASHER
6.	5M-6214	[1]	PLUG
7.	6L-9221	[1]	GASKET
8.	6L-9226	[1]	COVER
9.	5M-6213	[1]	PLUG
10.	2S-4015	[1]	PLUNGER ASSEM.
11.	6D-0238	[1]	VALVE ASSEM.
12.	6L-9290	[1]	TUBE (Air Bleed-48" Long)
13.	0S-1618	[6]	BOLT
14.	3F-9556	[5]	LOCKWASHER
15.	7H-9922	[1]	SPRING
16.	2F-4355	[1]	STOP
17.	6L-7611	[1]	FITTING
18.	4B-5647	[1]	GASKET
19.	6L-9223	[1]	ANGLE
20.	3B-8998	[2]	FITTING
	1F-1344	[2]	NUT
			(1 in each 3B8998 Fitting)
21.	8B-4509	[3]	FITTING
	8F-8997	[3]	NUT
			(1 in each 8B4509 Fitting)
22.	3B-8995	[1]	FITTING
	1F-1344	[1]	NUT
			(Part of 3B8995 Fitting)
23.	6L-9243	[1]	TUBE (9.23" Long)
24.	3B-8996	[1]	FITTING
	8F-8997	[1]	NUT
			(Part of 3B8996 Fitting)
25.	3B-9003	[1]	FITTING
	1F-1344	[1]	NUT
			(Part of 3B9003 Fitting)
26.	7L-5519	[1]	TUBE (13.78" Long)
27.	1L-0473	[2]	FLANGE
28.	5H-9144	[2]	GASKET
29.	6L-9272	[1]	TUBE (14.69" Long)
30.	6L-7440	[1]	FILTER ASSEM.
31.	6L-9291	[1]	TUBE (13.07" Long)
32.	6L-9224	[1]	BASE ASSEM.
	4S-8447	[1]	STUD
			(Part of 6L9224 Base Assem.)
33.	6L-9222	[1]	BRACKET
	Y		SEPARATE ILLUSTRATION

#UE0700780037

9H-2256: FUEL PRIMING PUMP ASSEMBLY

FUEL PRIMING PUMP ASSEMBLY

9H2256 FUEL PRIMING PUMP ASSEMBLY
PART OF FUEL FILTER AND PRIMING PUMP SHOWN ON PAGE 33

c100714 UE070078

9H2256 FUEL PRIMING PUMP ASSEMBLY Parts scheme

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Parts for your D334 MARINE ENGINE:

CATERPILLAR SIS

Part No	Qty	Parts name
1M-6871	[1]	ROD ASSEM.
1M-6782	[1]	KNOB
1M-6783	[1]	ROD
	[1]	PIN (.25" long)
2S-8145	[1]	SEAL
1M-6784	[1]	GUIDE
1M-6785	[1]	NUT
1M-6781	[3]	NUT
1M-6735	[1]	WASHER
1M-6787	[1]	SPRING
1M-6779	[1]	BARREL
1M-6788	[1]	NUT
1M-6786	[1]	PIN
1H-1023	[2]	RING
1M-6778	[1]	BODY
1M-6780	[2]	SPRING
1M-6718	[2]	BALL
1M-6789	[2]	RETAINER

#UE0700780038

4S-6902: FUEL INJECTION PUMP GROUP

FUEL INJECTION PUMP GROUP

4S6902 FUEL INJECTION PUMP GROUP
PART OF FUEL INJECTION PUMP AND GOVERNOR SHOWN ON PAGE 29

c100700 UE070078

4S6902 FUEL INJECTION PUMP GROUP Parts scheme

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Parts for your D334 MARINE ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7S-6683	[6]	BONNET
2.	1M-3506	[6]	RING
3.	3S-9528	[1]	HOUSING ASSEM.
4.	8M-3020	[6]	DOWEL
5.	8M-3019	[6]	DOWEL
6.	8H-9205	[1]	BEARING
7.	0T-0200	[1]	PLUG
8.	8M-7908	[1]	BEARING
9.	3S-9609	[3]	PIN
10.	1S-7102	[1]	BEARING
11.	5M-6214	[2]	PLUG
12.	1S-7100	[2]	BEARING
13.	4F-6024	[2]	DOWEL
			(Parts of 3S9528 Housing Assem.)
14.	9B-1363	[6]	SPRING
	7S-6682	[6]	CHECK
15.	8H-9204	[6]	WASHER
16.	2M-4314	[6]	BUSHING
17.	1B-2790	[1]	BOLT
	3B-4505	[1]	LOCKWASHER
	4B-4277	[1]	WASHER
18.	1S-9481	[1]	COVER
	1S-9546	[1]	GASKET
19.	1S-9480	[1]	PIN
20.	8F-0394	[1]	SPRING
21.	1S-7436	[1]	RACK
22.	5S-6037	[1]	CAMSHAFT ASSEM.
23.	2H-2255	[1]	DOWEL
			(Part of 5S6037 Camshaft Assem.)
24.	5S-5126	[1]	GEAR ASSEM. (72 Teeth)
25.	2H-2255	[1]	DOWEL
			(Part of 5S5126 Gear Assem.)
26.	5S-6193	[1]	SPRING
27.	0L-0472	[1]	BOLT
	2H-3504	[1]	LOCK
28.	2S-7461	[1]	PLATE
29.	3S-9736	[6]	LIFTER ASSEM.
30.	9H-5729	[6]	WASHER
31.	1S-7592	[6]	SPRING
32.	5M-2697	[6]	SPACER (.170" Thick)
	2M-4208	[6]	SPACER (.174" Thick)
	2M-4209	[6]	SPACER (.178" Thick)
	2M-4210	[6]	SPACER (.182" Thick)
	2M-4211	[6]	SPACER (.186" Thick)
	2M-4212	[6]	SPACER (.190" Thick)
	5M-2691	[6]	SPACER (.194" Thick)
	5S-7189	[6]	SPACER (.198" Thick)
33.	7S-6681	[6]	PLUNGER AND BARREL ASSEM.
34.	1M-1077	[6]	SEAL

#UE0700780039

FUEL INJECTION VALVES AND LINES

c101033 UE070078

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Parts for your D334 MARINE ENGINE:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7S-5105	[6]	NOZZLE ASSEM.
2.	3S-3498	[6]	BODY
3.	2S-9872	[6]	NUT
4.	7S-7150	[6]	TUBE ASSEM.
5.	7S-7151	[1]	LINE ASSEM. (No. 1)
6.	7S-7152	[1]	LINE ASSEM. (No. 2)
7.	1S-9323	[6]	ADAPTER ASSEM.
8.	5H-6005	[6]	SEAL
9.	7S-7153	[1]	LINE ASSEM. (No. 3)
10.	1D-4716	[14]	NUT
11.	2A-5328	[6]	LOCK
12.		[1]	LINE ASSEM. (No. 4)
13.	7S-7155	[1]	LINE ASSEM. (No. 5)
14.	7S-7156	[1]	LINE ASSEM. (No. 6)
15.	3S-2270	[4]	CLAMP
16.	3B-4505	[12]	LOCKWASHER
17.	1B-7182	[8]	BOLT
18.	3S-2272	[4]	DAMPER
19.	8F-3469	[2]	SEAL
20.	0S-1594	[2]	BOLT
	3B-4506	[2]	LOCKWASHER
21.	3S-8441	[1]	BRACKET
22.	0S-1618	[4]	BOLT
23.	6F-6673	[2]	SEAL
24.	3S-2267	[4]	DAMPER
25.	3S-2268	[4]	CLAMP
	2F-2990	[12]	PLUG (Protection)
			(Not Shown-- 2 in each Line Assem.)