7N3333 CYLINDER BLOCK GROUP ENGINE SERIAL No. 50V4305, 4390, 4455-4482 & 4484-5721 INCLUSIVE 8N4312-Page 6E D8K

BASIC ENGINE

CYLINDER BLOCK GP

0. 7N-3333 CYLINDER B
1. 7N-9615 CYLINDER B
2. 7N-3803 CYLINDER B
3. 7N-3035 CYLINDER B
4. 8N-4312 CYLINDER B
5. 8N-4308 CYLINDER B
6. 6N-5401 CYLINDER B

CRANKSHAFT GP

7. 4N-5236 CRANKSHAFT
8. 4N-5236 CRANKSHAFT
9. CRANKSHAFT
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

CYLINDER BLOCK GP

7N-3333 CYLINDER BLOCK GROUP

7N-9615 CYLINDER BLOCK GROUP

7N-3803 CYLINDER BLOCK GROUP

7N-3035 CYLINDER BLOCK ASSEMBLY

#HEBP11230010

7N-3333: CYLINDER BLOCK GROUP

CYLINDER BLOCK GROUP

7N3333 CYLINDER BLOCK GROUP
ENGINE SERIAL No. 50V4305, 4390, 4455-4482 & 4484-5721 INCLUSIVE
8N4312-Page 6E

c234783 HEBP1123

7N3333 CYLINDER BLOCK GROUP Parts scheme

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7N-3352	[2]	PLATE
2.	8N-5676 C	[6]	LINER
	8N-4638 C	[6]	BAND
3.	0S-1594 C	[32]	BOLT
4.	8M-5127	[2]	SEAL
5.	8N-4312 YC	[1]	CYLINDER BLOCK ASSEM.
			(Separate Illustration)
6.	7N-3353	[2]	GASKET
7.	5M-6214	[1]	PLUG
8.	6N-0084	[1]	COVER
9.	6L-5503	[2]	GASKET
10.	4N-5053	[1]	COVER
11.	2A-5365	[2]	STUD 7.11 cm(2.8 in.) long
12.	6L-7812	[18]	SEAL
13.	4F-1450	[2]	STUD 4.29 cm(1.69 in.)long
14.	2A-4492	[1]	STUD 5.23 cm(2.06 in.) long
15.	6B-6489	[1]	STUD 8.25 cm(3.25 in.)long
16.	2A-4791	[1]	STUD 10.31 cm(4.06 in.) long
17.	3J-5390	[1]	PLUG
18.	2H-8829	[1]	PLUG
	4F-9325	[1]	GASKET
19.	3B-8995	[1]	FITTING
			(Includes)
	1F-1344	[1]	NUT
20.	7N-3355	[1]	TUBE ASSEM.
	CH	[1]	INSERT (liner seat)
	H		NOT PART OF 7N3333 GROUP-NOT S
	Y		SEPARATE ILLUSTRATION
	C		INDICATES CHANGE

#HEBP11230011

7N-9615: CYLINDER BLOCK GROUP

CYLINDER BLOCK GROUP

7N3333 CYLINDER BLOCK GROUP
ENGINE SERIAL No. 50V5722-UP
8N4308-Page 6F

c182809 HEBP1123

7N9615 CYLINDER BLOCK GROUP Parts scheme

For full view, you need register

Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	7N-3352	[2]	PLATE
2.	5F-1914	[4]	DOWEL
3.	7N-3357	[1]	TUBE ASSEM.
	0L-1547	[1]	NUT
4.	8M-5127	[2]	SEAL
5.	8N-4308 Y	[1]	CYLINDER BLOCK ASSEM.
			(Separate Illustration)
6.	7N-3353	[2]	GASKET
7.	5M-6214	[1]	PLUG
8.	2A-3798	[1]	DOWEL
9.	2A-3349	[1]	FERRULE
10.	5H-1092	[1]	SPACER
11.	4H-8986	[1]	WASHER
	7B-5415	[2]	DOWEL
12.	4H-9640	[2]	BEARING
13.	1A-5919	[2]	DOWEL
14.	0L-1521	[1]	PLUG
15.	5H-2786	[2]	TUBE
16.	2A-5365	[2]	STUD 7.11 cm(2.8 in.) long
17.	4F-1450	[2]	STUD 4.29 cm(1.69 in.) long
18.	2A-4492	[1]	STUD 5.23 cm(2.06 in.) long
19.	2B-2994	[2]	DOWEL
20.	8F-8523	[3]	BEARING
21.	0S-0519	[1]	PLUG
22.	6B-6489	[1]	STUD 8.25 cm(3.25 in.) long
23.	2A-4791	[1]	STUD 10.31 cm(4.06 in.) long
24.	3B-8995	[1]	FITTING
	1F-1344	[1]	NUT
25.	7N-3355	[1]	TUBE ASSEM.
26.	4F-6024	[1]	DOWEL
27.	2B-6296	[1]	STUD
	Y		SEPARATE ILLUSTRATION

#HEBP11230012

7N-3803: CYLINDER BLOCK GROUP

CYLINDER BLOCK GROUP

7N3803 CYLINDER BLOCK GROUP-FIELD INSTALLATION
ENGINE SERIAL No. 50V2086 TO 50V2999 INCLUSIVE
NOTE: CONVERTS COUNTERBORED CYLINDER BLOCK TO SPACER PLATE CYLINDER BLOCK

HEBP11230012 HEBP1123

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Part No	Qty	Parts name
7N-3035	[1]	CYLINDER BLOCK ASSEMBLY
		-OR-
8N-4312	[1]	CYLINDER BLOCK ASSEMBLY
7N-3503	[2]	CYLINDER HEAD ASSEMBLY
		-OR-
8N-6000	[2]	CYLINDER HEAD ASSEMBLY
8N-4810	[2]	CYLINDER HEAD GASKET
6L-7814	[2]	SEAL
7B-2420	[2]	FERRULE
9H-1031	[16]	WASHER
9H-1024	[26]	WASHER
	[12]	BOLT
2M-0849	[12]	WASHER
2B-2391	[2]	BOLT
1D-4600	[2]	BOLT
6L-2387	[6]	STRAP
7N-5379	[1]	LIFTING EYE
7N-6243	[24]	SEAL
7N-3841	[1]	COUPLING ASSEMBLY
7N-3863	[6]	ROD
7N-8131	[2]	SPACER PLATE
1D-6260	[16]	BOLT
1D-4599	[26]	BOLT

#HEBP11230013

7N-3035: CYLINDER BLOCK ASSEMBLY

CYLINDER BLOCK ASSEMBLY

7N3035 CYLINDER BLOCK ASSEMBLY
ENGINE SERIAL No. 50V3000 TO 4304, 4306 TO 4389, 4391 TO 4454 AND 50V4483 INCLUSIVE
PART OF 7N3333 CYLINDER BLOCK GROUP SHOWN ON Page 6B AND 7N3803 CYLINDER BLOCK GROUP
ENGINE SERIAL NO. 50V2086 TO 50V2999 SHOWN ON Page 6C

c165904 HEBP1123

7N3035 CYLINDER BLOCK ASSEMBLY Parts scheme

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5F-1914	[4]	DOWEL
2.	3B-0622	[1]	PLUG
3.	2A-3798	[2]	DOWEL
4.	7N-3357	[1]	TUBE ASSEM.
			(Includes)
	5H-4390	[1]	SLEEVE
5.	0L-1547	[1]	NUT
6.	5H-2766	[1]	STUD
7.	2A-3349	[1]	FERRULE
8.	4H-8986	[1]	WASHER
9.	5H-1092	[1]	SPACER
10.	7B-5415	[2]	DOWEL
11.	1A-5919	[2]	DOWEL
12.	1P-0667	[14]	STUD
	1A-5666	[14]	NUT
	4M-6953	[14]	WASHER
13.	4H-9640	[2]	BEARING
14.	8F-6575	[1]	PLUG
15.	0L-1521	[1]	PLUG
16.	5H-2786	[2]	TUBE
17.	5B-5812	[1]	DOWEL
18.	1P-4275	[1]	CAP
19.	1P-4273	[6]	CAP
20.	2B-2994	[2]	DOWEL
21.	0S-0519	[1]	PLUG
22.	8F-8523	[3]	BEARING
23.	4F-6024	[1]	DOWEL
24.	5H-4279	[1]	PLUG

#HEBP11230014

8N-4312: CYLINDER BLOCK ASSEMBLY

CYLINDER BLOCK ASSEMBLY

8N4312 CYLINDER BLOCK ASSEMBLY
ENGINE SERIAL No. 50V4305, 4390, 4455 TO 4482 AND 50V4484-UP
PART OF 7N3333 & 7N3803 CYLINDER BLOCK
FIELD REPLACEMENT FOR 8N4308-Page 6F

c224459 HEBP1123

8N4312 CYLINDER BLOCK ASSEMBLY Parts scheme

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	5F-1914	[4]	DOWEL
2.	3B-0622	[1]	PLUG
3.	2A-3798	[1]	DOWEL
4.	7N-3357	[1]	TUBE ASSEM.
			(Includes)
	5H-4390	[1]	SLEEVE
5.	0L-1547	[1]	NUT
6.	2B-6296	[1]	STUD
7.	2A-3349	[1]	FERRULE
8.	4H-8986	[1]	WASHER
9.	5H-1092	[1]	SPACER
10.	7B-5415	[2]	DOWEL
11.	1A-5919	[2]	DOWEL
12.	1P-0667	[14]	STUD
	1A-5666	[14]	NUT
	4M-6953	[14]	WASHER
13.	4H-9640	[2]	BEARING
14.	8F-6575	[1]	PLUG
15.	0L-1521	[1]	PLUG
16.	5H-2786	[2]	TUBE
17.	5B-5812	[1]	DOWEL
18.	4S-6836	[1]	CAP
19.	4S-6835	[6]	CAP
20.	2B-2994	[2]	DOWEL
21.	0S-0519	[1]	PLUG
22.	8F-8523	[3]	BEARING
23.	4F-6024	[1]	DOWEL
24.	5H-4279	[1]	PLUG

#HEBP11230015

8N-4308: CYLINDER BLOCK ASSEMBLY

CYLINDER BLOCK ASSEMBLY

8N4308 CYLINDER BLOCK ASSEMBLY
ENGINE SERIAL No. 50V5722-UP
PART OF 7N9615 CYLINDER BLOCK
FIELD REPLACEMENT FOR 8N4312-Page 6E

c182810 HEBP1123

8N4308 CYLINDER BLOCK ASSEMBLY Parts scheme

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	4H-5360	[1]	COVER
2.	6L-5503	[2]	GASKET
3.	3J-5390	[1]	PLUG
4.	0S-1594	[32]	BOLT
5.	6N-0084	[1]	COVER
6.	1P-0667	[14]	STUD
	1A-5666	[14]	NUT
	4M-6953	[14]	WASHER
7.	2H-8829	[1]	PLUG
	4F-9325	[1]	GASKET
8.	5B-5812	[1]	DOWEL
9.	4S-6836	[1]	CAP
10.	4S-6835	[6]	CAP
11.	8N-5676	[6]	LINER
	8N-4638	[6]	BAND
12.	6L-7812	[18]	SEAL
	H	[6]	INSERT (liner seat)
			THE FOLLOWING REPAIR KIT IS AVAILABLE:
	7N-3802	[1]	KIT (cylinder block hardware)
	H		NOT PART 8N4308 GROUP-NOT SHOW

#HEBP11230016

6N-5401: CYLINDER BLOCK ASSEMBLY

CYLINDER BLOCK ASSEMBLY

6N5401 CYLINDER BLOCK ASSEMBLY
ENGINE SERIAL No. 50V2086 TO 50V2999 INCLUSIVE
PART OF 4N9873 CYLINDER BLOCK GROUP SHOWN ON Page 6

c156383 HEBP1123

6N5401 CYLINDER BLOCK ASSEMBLY Parts scheme

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	9H-1077	[16]	STUD 10.32 in. (2.62 dm) long
2.	9M-0488	[26]	STUD 8 in. (2.03 dm) long
3.	2A-3798	[1]	DOWEL
4.	3B-8995	[1]	FITTING
	1F-1344	[1]	NUT
5.	5M-6214	[1]	PLUG
6.	4H-8986	[1]	WASHER
7.	2A-3349	[1]	FERRULE
8.	5H-2766	[1]	STUD
9.	4H-7297	[1]	TUBE ASSEM.
	5H-4390	[1]	SLEEVE
10.	0L-1547	[1]	NUT
11.	1A-5919	[2]	DOWEL
12.	7B-5415	[2]	DOWEL
13.	5H-1092	[1]	SPACER
14.	4H-9640	[2]	BEARING
15.	8F-8523	[3]	BEARING
16.	1P-4275	[1]	CAP (Center)
17.	5B-5812	[1]	DOWEL
18.	5H-2786	[2]	TUBE
19.	2A-5365	[2]	STUD 2.8 in.(.71 dm) long
20.	1P-0667	[14]	STUD
	1A-5666	[14]	NUT
	4M-6953	[14]	WASHER
21.	1P-4273	[6]	CAP (Intermediate)
22.	5H-8985	[4]	PIN
23.	2B-2994	[2]	DOWEL
24.	4B-3251	[10]	STUD
25.	0S-0519	[1]	PLUG
26.	2A-4791	[1]	STUD 4.06 in.(1.03 dm) long
27.	4F-6024	[1]	DOWEL
28.	0L-2061	[4]	DOWEL
29.	4H-8795	[1]	TUBE ASSEM.
30.	0L-1547	[1]	NUT
	5H-4390	[1]	SLEEVE
31.	2A-4492	[1]	STUD 2.06 in.(.52 dm) long
32.	4F-1450	[2]	STUD 1.69 in. (.43 dm) long
33.	4N-5053	[1]	COVER
34.	6L-5503	[2]	GASKET
35.	1A-2029	[30]	BOLT 1.125 in. (.28 dm) long
36.	3B-4506	[30]	LOCKWASHER
37.	6N-0084	[1]	COVER
38.	2H-8829	[1]	PLUG
	4F-9325	[1]	GASKET
39.	3J-5390	[1]	PLUG
40.	0L-1521	[1]	PLUG
41.	6B-6489	[1]	STUD 3.25 in. (.83 dm) long

#HEBP11230017

4N-5236: CRANKSHAFT GROUP

CRANKSHAFT GROUP

4N5236 CRANKSHAFT GROUP
ENGINE SERIAL No. 50V2086 TO 50V3429 INCLUSIVE

c203268 HEBP1123

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	0L-1351	[12]	BOLT
	7H-3070	[6]	LOCK
2.	1S-8607	[1]	BAFFLE
	5H-2669	[1]	GASKET
3.	7S-0662	[1]	SEAL
4.	4S-7793	[1]	THROWER
5.	6N-2823 R	[1]	CRANKSHAFT ASSEM.
			(Includes)
6.	4S-7863	[1]	GEAR (40 teeth)
7.	0S-1604	[8]	BOLT
	4S-7864	[4]	LOCK
8.	4S-6582	[1]	BEARING
9.	4S-6581	[6]	BEARING
10.	2S-1509	[1]	SEAL
	R		REMFG PART MAY BE AVAILABLE

#HEBP11230018

4N-5236: CRANKSHAFT GROUP

CRANKSHAFT GROUP

4N5236 CRANKSHAFT GROUP
ENGINE SERIAL No. 50V3430-UP

c212649 HEBP1123

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Parts for your D8K TRACK-TYPE TRACTOR:

CATERPILLAR SIS

Pos.	Part No	Qty	Parts name
1.	0L-1351	[12]	BOLT
	7H-3070	[6]	LOCK
2.	1S-8607	[1]	BAFFLE
	5H-2669	[1]	GASKET
3.	7S-0662	[1]	SEAL
4.	4S-7793	[1]	THROWER
5.	6N-2823 R	[1]	CRANKSHAFT ASSEM.
			(Includes)
6.	4S-7863	[1]	GEAR (40 teeth)
7.	0S-1604	[8]	BOLT
8.	4S-6582	[1]	BEARING
9.	4S-6581	[6]	BEARING
10.	9N-2539 C	[1]	SEAL
11.	9J-0110 C	[1]	SLEEVE
	C		INDICATES CHANGE
	R		REMFG PART MAY BE AVAILABLE