4H9649 CAMSHAFT GROUP D8K TRACK-TYPE TRACTOR

BASIC ENGINE

CAMSHAFT GP

0. 4H-9649 CAMSHAFT G

PISTON & ROD GP

1. 4N-6816 CONNECTING
2. 7N-1368 CONNECTING

CYLINDER HEAD GP

3. 4N-9894 CYLINDER H
4. 7N-3336 CYLINDER H
5. 7N-3336 CYLINDER H
6. 7N-3336 CYLINDER H
7. 7N-3336 CYLINDER H
8. 7N-3336 CYLINDER H
9. 7N-3503 CYLINDER H
0. INFORMATION

TRACK-TYPE TRACTOR D8K TRACK-TYPE TRACTOR 66V
D8K TRACTOR / POWER SHIFT / 66V02085-UP (MACHINE) POWERED BY D342 ENGINE HEBP1123 D8K 66V (1974)

BASIC ENGINE

CAMSHAFT GP

4H-9649 CAMSHAFT GROUP

#HEBP11230020

4H-9649: CAMSHAFT GROUP

CAMSHAFT GROUP

4H9649 CAMSHAFT GROUP

c128744 HEBP1123

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Part No	Qty	Parts name
4H-7384	[1]	GEAR (80 TEETH)
0S-1599	[12]	BOLT
1B-4205	[12]	NUT
4S-7870	[1]	CAMSHAFT ASSEM.
1B-8714	[1]	KEY
6F-7172	[1]	DOWEL
2M-4091	[1]	GEAR (62 TEETH)
		(PARTS OF 4S7870 CAMSHAFT ASSEM.)
4H-9648	[1]	LOCK

#HEBP11230021

4N-6816: CONNECTING ROD AND PISTON GROUP

CONNECTING ROD AND PISTON GROUP

4N6816 CONNECTING ROD AND PISTON GROUP-6 REQUIRED
ENGINE SERIAL No. 50V2086 TO 50V2280 INCLUSIVE

c156590 HEBP1123

4N6816 CONNECTING ROD AND PISTON GROUP Parts scheme

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Part No	Qty	Parts name
4M-9183	[1]	BEARING
		(PART OF ROD ASSEM.4S6867)
4S-6834	[1]	BEARING
		(STANDARD)
4S-9276 H	[1]	BEARING
		(.025" UNDERSIZE)
4S-9277 H	[1]	BEARING
		(.050" UNDERSIZE)
6N-5025 C	[1]	RING (TOP)
6N-5026	[1]	RING (INTERMEDIATE)
3H-0881	[1]	RING (BOTTOM OIL)
		(PARTS OF PISTON GROUP 4N6815)
4N-6815	[1]	PISTON GROUP
7M-4926	[2]	RETAINER
3H-6767	[1]	PIN
4S-6867 R	[1]	ROD ASSEM.
9S-8493	[2]	BOLT
9S-8494	[2]	NUT
		(PARTS OF ROD ASSEM 4S6867)
6N-5536		PISTON RING GROUP
		(CONSISTS OF COMPLETE SET OF RINGS FOR ONE PISTON)
H		NOT PART OF 4N6816 PISTON GROU
R		REMFG PART MAY BE AVAILABLE
C		INDICATES CHANGE

#HEBP11230022

7N-1368: CONNECTING ROD AND PISTON GROUP

CONNECTING ROD AND PISTON GROUP

7N1368 CONNECTING ROD AND PISTON GROUP-6 REQUIRED
ENGINE SERIAL No. 50V2281-UP

c162268 HEBP1123

7N1368 CONNECTING ROD AND PISTON GROUP Parts scheme

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Part No	Qty	Parts name
4M-9183	[1]	BEARING
		(PART OF ROD ASSEM. 4S6867)
4S-6834	[1]	BEARING
		(STANDARD)
4S-9276 H	[1]	BEARING
		(.025" UNDERSIZE)
4S-9277 H	[1]	BEARING
		(.050" UNDERSIZE)
6N-5025	[1]	RING (TOP)
6N-5026	[1]	RING (INTERMEDIATE)
3H-0881	[1]	RING (BOTTOM OIL)
		(Parts of Piston Group 7N1367)
7N-1367	[1]	PISTON GROUP
7M-4926	[2]	RETAINER
3H-6767	[1]	PIN
4S-6867 R	[1]	ROD ASSEM.
9S-8493	[2]	BOLT
9S-8494	[2]	NUT
		(PARTS OF ROD ASSEM 4S6867)
6N-5536		PISTON RING GROUP
		(Consists of Complete Set of Rings for one Piston)
H		NOT PART OF 7N1368 PISTON GROU
R		REMFG PART MAY BE AVAILABLE

#HEBP11230023

4N-9894: CYLINDER HEAD GROUP

CYLINDER HEAD GROUP

4N9894 CYLINDER HEAD GROUP
ENGINE SERIAL No. 50V2086 TO 50V2999 INCLUSIVE

c216525 HEBP1123

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7N-6358 C	[2]	CYLINDER HEAD SERVICE GROUP
			(Each Includes)
2.	3B-0623	[16]	PLUG
3.	7N-2051 C	[6]	GUIDE
4.	5H-7071	[12]	DIRECTOR
5.	9M-8745	[3]	INSERT (intake)
			(Standard)
	4S-8912 LH	[3]	INSERT .127 mm(.005 in.)
	4S-8913 LH	[3]	INSERT .254mm(.01 in.)
	8M-9810	[3]	INSERT (exhaust)
	4S-8896 LH	[3]	INSERT .127 mm(.005 in.)
	4S-8897 LH	[3]	INSERT .254 mm(.01 in.)
6.	3N-1414	[12]	SPACER
7.	4S-7468	[12]	ROTATOR
8.	9M-5350	[12]	SPRING (outer)
9.	6B-8505	[12]	SLEEVE
10.	3B-1143	[36]	LOCK
11.	3B-1142	[12]	RETAINER
12.	9M-5349	[12]	SPRING (inner)
13.	6B-6683	[26]	NUT
	9H-1024	[26]	WASHER
14.	2P-0484	[3]	CHAMBER ASSEM.
15.	6L-7816	[3]	SEAL
16.	1A-5666	[16]	NUT
	9H-1031	[16]	WASHER
17.	9H-1288	[6]	STUD
18.	7B-7770	[2]	COVER
	6H-2007	[2]	GASKET
19.	0L-1351	[4]	BOLT
	5M-2894	[4]	WASHER
20.	6L-7813	[24]	SEAL
21.	6B-6224	[24]	FERRULE
22.	1P-6442	[6]	GASKET 3.54 mm(.139 in.)
	1P-6441	[6]	GASKET 3.94 mm(.155 in.)
	5H-2579	[6]	GASKET 3.15 mm(.124 in.)
23.	8H-1993	[6]	VALVE (intake)
24.	8H-1994	[6]	VALVE (exhaust)
25.	1S-4390	[2]	GASKET
26.	6N-7502 C	[2]	GASKET
27.	7B-2420	[2]	FERRULE
	6L-7814	[2]	SEAL
28.	9H-1022	[3]	STUD
29.	9H-1020	[6]	STUD
30.	2B-7557	[3]	CORK
	H		NOT PART OF 7N6358 GROUP
	L		OVERSIZE
	C		INDICATES CHANGE

#HEBP11230024

7N-3336: CYLINDER HEAD GROUP

CYLINDER HEAD GROUP

7N3336 CYLINDER HEAD GROUP
ENGINE SERIAL No. 50V3000 TO 50V3965 INCLUSIVE
7N3503 CYLINDER HEAD PARTS ARE SHOWN ON Page 11B

c222838 HEBP1123

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1A-7669	[12]	BOLT
	2M-0849	[12]	WASHER
2.	7N-3503 Y	[2]	CYLINDER HEAD ASSEM.
			(Separate Illustration)
3.	2B-7557	[3]	CORK
4.	3N-1414	[12]	SPACER
5.	7N-7639 C	[12]	ROTATOR
6.	9M-5350	[12]	SPRING (outer)
7.	3B-1143	[36]	LOCK
8.	3B-1142	[12]	RETAINER
9.	9M-5349	[12]	SPRING (inner)
10.	1D-4599 C	[26]	BOLT
	9H-1024	[26]	WASHER
11.	2P-0484	[6]	CHAMBER ASSEM.
12.	6L-7816	[6]	SEAL
13.	1D-6260 C	[16]	BOLT
	9H-1031	[16]	WASHER
14.	9H-1288	[12]	STUD
15.	7B-7770	[2]	COVER
	6H-2007	[2]	GASKET
16.	0L-1351	[4]	BOLT
	5M-2894	[4]	WASHER
17.	7N-6243	[24]	SEAL
18.	1P-6442	[6]	GASKET 3.54 mm(.139 in.)
	1P-6441	[6]	GASKET 3.94 mm(.155 in.)
	5H-2579	[6]	GASKET 3.15 mm(.124 in.)
19.	8H-1993	[6]	VALVE (intake)
20.	8H-1994	[6]	VALVE (exhaust)
21.	7N-3642	[2]	GASKET
22.	9H-1020	[6]	STUD
23.	7B-2420	[2]	FERRULE
	6L-7814	[2]	SEAL
24.	7N-6758 C	[6]	GASKET 2.90 mm(.114 in.)
	C		INDICATES CHANGE
	Y		SEPARATE ILLUSTRATION

#HEBP11230025

7N-3336: CYLINDER HEAD GROUP

CYLINDER HEAD GROUP

7N3336 CYLINDER HEAD GROUP
ENGINE SERIAL No. 50V3966 TO 50V5132 INCLUSIVE
7N3503-Page 11B

c169943 HEBP1123

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1A-7669	[12]	BOLT
	2M-0849	[12]	WASHER
2.	7N-3503 Y	[2]	CYLINDER HEAD ASSEM.
			(Separate Illustration)
3.	2B-7557	[3]	CORK
4.	3N-1414	[12]	SPACER
5.	7N-7639	[12]	ROTATOR
6.	9M-5350	[12]	SPRING (outer)
7.	3B-1143	[36]	LOCK
8.	3B-1142	[12]	RETAINER
9.	9M-5349	[12]	SPRING (inner)
10.	1D-4599	[26]	BOLT
	9H-1024	[26]	WASHER
11.	2P-0484	[6]	CHAMBER ASSEM.
12.	6L-7816	[6]	SEAL
13.	1D-6260	[16]	BOLT
	9H-1031	[16]	WASHER
14.	9H-1288	[12]	STUD
15.	7N-8851 C	[2]	FERRULE
	6L-7814 C	[2]	SEAL
16.	3B-0623 C	[1]	PLUG
17.	7N-6243	[24]	SEAL
18.	1P-6442	[6]	GASKET 3.54 mm(.139 in.)
	1P-6441	[6]	GASKET 3.94 mm(.155 in.)
	5H-2579	[6]	GASKET 3.15 mm(.124 in.)
19.	8H-1993	[6]	VALVE (intake)
20.	8H-1994	[6]	VALVE (exhaust)
21.	7N-3642	[2]	GASKET
22.	9H-1020 C	[12]	STUD
23.	7N-6758	[6]	GASKET 2.90 mm (.114 in.)
	C		INDICATES CHANGE
	Y		SEPARATE ILLUSTRATION

#HEBP11230026

7N-3336: CYLINDER HEAD GROUP

CYLINDER HEAD GROUP

7N3336 CYLINDER HEAD GROUP-TYPE 1
ENGINE SERIAL No. 50V5133 TO 50V5987 INCLUSIVE
8N6734-Page 11C

c175714 HEBP1123

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1A-7669	[12]	BOLT
	2M-0849	[12]	WASHER
2.	8N-6734 YC	[2]	CYLINDER HEAD ASSEM.
			(Separate Illustration)
3.	2B-7557	[3]	CORK
4.	3N-1414	[12]	SPACER
5.	7N-7639	[12]	ROTATOR
6.	9M-5350	[12]	SPRING (outer)
7.	3B-1143	[36]	LOCK
8.	3B-1142	[12]	RETAINER
9.	9M-5349	[12]	SPRING (inner)
10.	1D-4599	[26]	BOLT
	9H-1024	[26]	WASHER
11.	2P-0484	[6]	CHAMBER ASSEM.
12.	6L-7816	[6]	SEAL
13.	1D-6260	[16]	BOLT
	9H-1031	[16]	WASHER
14.	9H-1288	[12]	STUD
15.	7N-8851	[2]	FERRULE
	6L-7814	[2]	SEAL
16.	3B-0623 C	[2]	PLUG
17.	7N-6243	[24]	SEAL
18.	1P-6442	[6]	GASKET 3.54 mm(.139 in.)
	1P-6441	[6]	GASKET 3.94 mm(.155 in.)
	5H-2579	[6]	GASKET 3.15 mm(.124 in.)
19.	8H-1993	[6]	VALVE (intake)
20.	8H-1994	[6]	VALVE (exhaust)
21.	8N-4810 C	[2]	GASKET
22.	9H-1020	[12]	STUD
23.	7N-6758	[6]	GASKET 2.90 mm(.114 in.)
24.	7N-2051 C	[12]	GUIDE
	C		INDICATES CHANGE
	Y		SEPARATE ILLUSTRATION

#HEBP11230027

7N-3336: CYLINDER HEAD GROUP

CYLINDER HEAD GROUP

7N3336 CYLINDER HEAD GROUP-TYPE 2
ENGINE SERIAL No. 50V5133 TO 50V5987 INCLUSIVE
5N8501-Page 11C.01

c234470 HEBP1123

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1A-7669	[12]	BOLT
	2M-0849	[12]	WASHER
2.	5N-8501 RYC	[2]	CYLINDER HEAD ASSEM.
			(Separate Illustration)
3.	2B-7557	[3]	CORK
4.	3N-1414	[12]	SPACER
5.	7N-7639	[12]	ROTATOR
6.	9M-5350	[12]	SPRING (outer)
7.	3B-1143	[36]	LOCK
8.	3B-1142	[12]	RETAINER
9.	9M-5349	[12]	SPRING (inner)
10.	1D-4599	[26]	BOLT
	9H-1024	[26]	WASHER
11.	2P-0484	[6]	CHAMBER ASSEM.
12.	6L-7816	[6]	SEAL
13.	1D-6260	[16]	BOLT
	9H-1031	[16]	WASHER
14.	9H-1288	[12]	STUD
15.	7N-8851	[2]	FERRULE
	6L-7814	[2]	SEAL
16.	3B-0623 C	[1]	PLUG
17.	7N-6243	[24]	SEAL
18.	1P-6442	[6]	GASKET 3.54 mm(.139 in.)
	1P-6441	[6]	GASKET 3.94 mm(.155 in.)
	5H-2579	[6]	GASKET 3.15 mm(.124 in.)
19.	8H-1993	[6]	VALVE (intake)
20.	8H-1994	[6]	VALVE (exhaust)
21.	8N-4810	[2]	GASKET
22.	9H-1020	[12]	STUD
23.	7N-6758	[6]	GASKET 2.90 mm(.114 in.)
	R		REMFG PART MAY BE AVAILABLE
	Y		SEPARATE ILLUSTRATION
	C		INDICATES CHANGE

#HEBP11230028

7N-3336: CYLINDER HEAD GROUP

CYLINDER HEAD GROUP

7N3336 CYLINDER HEAD GROUP
ENGINE SERIAL No. 50V5988-UP
5N8522-Page 11C.02

c234471 HEBP1123

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	1A-7669	[12]	BOLT
	2M-0849	[12]	WASHER
2.	5N-8522 YC	[2]	CYLINDER HEAD ASSEM.
			(Separate Illustration)
3.	2B-7557	[3]	CORK
4.	3N-1414	[12]	SPACER
5.	7N-7639	[12]	ROTATOR
6.	9M-5350	[12]	SPRING (outer)
7.	3B-1143	[36]	LOCK
8.	3B-1142	[12]	RETAINER
9.	9M-5349	[12]	SPRING (inner)
10.	1D-4599	[26]	BOLT
	9H-1024	[26]	WASHER
11.	2P-0484	[6]	CHAMBER ASSEM.
12.	6L-7816	[6]	SEAL
13.	1D-6260	[16]	BOLT
	9H-1031	[16]	WASHER
14.	6L-4088 C	[12]	STUD
15.	7N-8851	[2]	FERRULE
	6L-7814	[2]	SEAL
16.	3B-0623 C	[2]	PLUG
17.	7N-6243	[24]	SEAL
18.	1P-6442	[6]	GASKET 3.54 mm(.139 in.)
	1P-6441	[6]	GASKET 3.94 mm(.155 in.)
	5H-2579	[6]	GASKET 3.15 mm(.124 in.)
19.	8H-1993	[6]	VALVE (intake)
20.	8H-1994	[6]	VALVE (exhaust)
21.	8N-4810	[2]	GASKET
22.	9H-1020	[12]	STUD
23.	7N-6758	[6]	GASKET 2.90 mm (.114 in.)
	C		INDICATES CHANGE
	Y		SEPARATE ILLUSTRATION

#HEBP11230029

7N-3503: CYLINDER HEAD ASSEMBLY

CYLINDER HEAD ASSEMBLY

7N3503 CYLINDER HEAD ASSEMBLY
REPLACED BY 8N6000 SHOWN ON Page 11D
ENGINE SERIAL No. 50V3000 TO 50V5132 INCLUSIVE. PART OF 7N3336 CYLINDER HEAD GROUP SHOWN ON
Pages 11A AND 11A.01 AND 7N3803 CYLINDER BLOCK ENGINE SERIAL NO. 50V2086 TO 50V2999 LISTED ON Page 6C

c226227 HEBP1123

7N3503 CYLINDER HEAD ASSEMBLY Parts scheme

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	3B-0623 C	[15]	PLUG
2.	7N-2051	[6]	GUIDE
3.	5H-7071	[12]	DIRECTORS
4.	8M-9810	[3]	INSERT (exhaust)
			(STANDARD)
	4S-8896 H	[3]	INSERT
			0.13 mm(.005 in.) oversize
	4S-8897 H	[3]	INSERT
			0.26 mm(.010 in.) oversize
5.	9M-8745	[3]	INSERT (intake)
			(STANDARD)
	4S-8912 H	[3]	INSERT
			0.13 mm(.005 in.) oversize
	4S-8913 H	[3]	INSERT
			0.26 mm(.010 in.) oversize
6.	0S-1594 C	[2]	BOLT
	5M-2894 C	[2]	WASHER
7.	5L-1883 C	[1]	FLANGE
	6H-2007 C	[1]	GASKET
8.	5M-6214 C	[1]	PLUG
	C		INDICATES CHANGE
	H		NOT PART OF 7N3503 CYLINDER HE