Komatsu S6D155-4J Cylinder Block Parts Hub

Komatsu S6D155-4J Cylinder Block Parts is a focused 19PARTS hub for buyers working inside a specific Komatsu engine model and repair system. It is meant to reduce guesswork by tying engine-model navigation to related product listings and part-number references.

Diagram callout lookup for Komatsu S6D155-4J Cylinder Block Parts

Use each diagram together with the table directly below it. The Diagram Ref. column corresponds to the location number shown on that specific image. Clickable part numbers link to matching 19PARTS product pages where a product match exists.

S6D155-4J — Cylinder Block

Komatsu S6D155-4J Cylinder Block Parts diagram ENGINES/s6d1552c/060010a.png
ENGINES/s6d1552c/060010a.png · 42 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 07046-15020 Plug 1 SN: 22144-UP
4 04020-01842 Pin 2 SN: 22144-UP
5 04020-00820 Pin 2 SN: 22144-UP
10 07040-11409 Plug 1 SN: 22144-UP
11 07005-01412 Gasket (K2) 1 SN: 22144-UP
12 04020-01024 Pin 6 SN: 22144-UP
22 04020-00616 Pin 2 SN: 22144-UP
24 6127-21-1741 Washer 14 SN: 22144-UP
26 01010-31230 Bolt 4 SN: 22144-UP
30 01643-31032 Washer 2 SN: 25996-UP
32 01010-31035 Bolt 3 SN: 22144-UP
33 01650-11012 Washer (K2) 3 SN: 22144-UP
36 6127-21-2431 Lock (K2) 1 SN: 22144-UP
39 07000-62016 O-Ring (K2) 1 SN: 22144-UP
40 01010-30818 Bolt 6 SN: 22144-UP
41 01602-00825 Washer 6 SN: 22144-UP
43 The part specified in the line above can be used instead of this part6610-21-5671 Gasket 1 SN: 22144-48680
46 01010-31025 Bolt 4 SN: 22144-UP
47 01602-01030 Washer 4 SN: 22144-UP
49 6127-51-6920 Gasket (K2) 1 SN: 22144-UP
50 01010-31020 Bolt 2 SN: 22144-UP
51 01602-01030 Washer 2 SN: 22144-UP
53 6127-21-2252 Seal 6 SN: 51168-UP
54 6127-21-2221 O-Ring (K2) 6 SN: 22144-UP
55 6127-21-2241 O-Ring (K2) 6 SN: 22144-UP
59 07005-01412 Gasket (K2) 1 SN: 22144-UP
60 07217-51013 Elbow 1 SN: 22144-UP
63 6127-21-7401 Cap 1 SN: 22144-UP
64 6128-21-7450 Ring 1 SN: 22144-UP
65 6127-21-6521 Gasket (K2) 1 SN: 28385-UP
65 6127-21-6521 Gasket 2 SN: 22144-28384
67 01602-00825 Washer 8 SN: 28385-UP
67 01602-00825 Washer 16 SN: 22144-28384
72 01010-31025 Bolt 1 SN: 22144-UP
73 01010-31040 Bolt 1 SN: 22144-UP
74 01602-01030 Washer 2 SN: 22144-UP
75 01640-21016 Washer 1 SN: 22144-UP
79 01641-21626 Washer 1 SN: 22144-UP
80 01582-01613 Nut 1 SN: 22144-UP
81 01602-01648 Washer 1 SN: 22144-UP
82 01010-31235 Bolt 2 SN: 22144-UP
83 01602-01236 Washer 2 SN: 22144-UP

S6D155-4J — Power Take Off

Komatsu S6D155-4J Cylinder Block Parts diagram ENGINES/s6d1552c/060070a.png
ENGINES/s6d1552c/060070a.png · 27 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 07000-05165 O-Ring (K3) 1 SN: 22144-UP
4 01010-31030 Bolt 6 SN: 22144-UP
5 01602-01030 Washer 6 SN: 22144-UP
6 01641-21016 Washer 1 SN: 22144-UP
10 07000-05150 O-Ring (K3) 1 SN: 22144-UP
12 01530-06214 Nut 1 SN: 22144-UP
13 01658-26223 Washer (K3) 1 SN: 22144-UP
14 06000-06214 Bearing 1 SN: 22144-UP
18 01010-31230 Bolt 6 SN: 22144-UP
19 01602-01236 Washer 6 SN: 22144-UP
20 6128-21-4321 Gear 1 SN: 22144-UP
21 06002-30217 Bearing 2 SN: 22144-UP
23 6128-21-4340 Retainer 1 SN: 22144-UP
25 6128-21-4360 Lock (K3) 1 SN: 22144-UP
27 07000-03095 O-Ring (K3) 1 SN: 22144-UP
28 07000-03110 O-Ring (K3) 1 SN: 22144-UP
30 01010-31240 Bolt 2 SN: 22144-UP
31 01602-01236 Washer 2 SN: 22144-UP
32 06000-06010 Bearing 2 SN: 22144-UP
34 6128-21-4540 Collar 1 SN: 22144-UP
35 6128-21-4510 Shaft 1 SN: 22144-UP
37 01010-31020 Bolt 6 SN: 22144-UP
38 6127-21-4550 Lock (K3) 3 SN: 22144-UP
40 6128-21-4600 Shim Ass'Y (K3) 1 SN: 22144-UP
40 6128-21-4610 Shim, 1.0Mm 1 SN: 22144-UP
40 6128-21-4620 Shim, 0.5Mm 1 SN: 22144-UP
40 6128-21-4630 Shim, 0.1Mm 2 SN: 22144-UP

S6D155-4J — Gear Case And Front Support

Komatsu S6D155-4J Cylinder Block Parts diagram ENGINES/s6d1552c/060020a.png
ENGINES/s6d1552c/060020a.png · 31 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 04020-01434 Pin 2 SN: 22144-UP
3 04020-00616 Pin 2 SN: 22144-UP
8 01582-01008 Nut 6 SN: 22144-UP
9 01602-01030 Washer 6 SN: 22144-UP
10 6127-21-3160 Grommet (K2) 2 SN: 22144-UP
11 6128-21-3810 Gasket (K2) 1 SN: 22144-UP
12 01010-31650 Bolt 15 SN: 22144-UP
13 01602-01648 Washer 15 SN: 22144-UP
17 04020-00820 Pin 1 SN: 22144-UP
23 6127-31-6221 Bushing 1 SN: 22144-UP
24 6127-31-6261 Metal 1 SN: 22144-UP
25 6128-21-3230 Gasket (K2) 1 SN: 22144-UP
26 01010-31475 Bolt 9 SN: 22724-UP
26 01010-31475 Bolt 11 SN: 22144-22723
27 01010-31455 Bolt 4 SN: 22144-UP
28 01010-31480 Bolt 1 SN: 22724-UP
28 01010-31480 Bolt 2 SN: 22144-22723
29 01602-01442 Washer 14 SN: 22144-UP
30 01641-21423 Washer 2 SN: 22144-UP
31 01011-31625 Bolt 2 SN: 22144-UP
32 01602-01648 Washer 2 SN: 22144-UP
34 6124-21-3240 Gasket 1 SN: 22144-28423
36 01602-01030 Washer 8 SN: 22144-28423
38 01010-30612 Bolt 2 SN: 22144-UP
39 01602-00619 Washer 2 SN: 22144-UP
40 01642-20608 Washer 2 SN: 22144-UP
42 01010-31440 Bolt 2 SN: 28424-UP
42 01010-31440 Bolt 4 SN: 22144-28423
43 01602-01442 Washer 2 SN: 28424-UP
43 01602-01442 Washer 4 SN: 22144-28423
44 6127-21-3510 Seal, Front (K2) 1 SN: 22144-UP

S6D155-4J — Oil Pan(#28424-)

Komatsu S6D155-4J Cylinder Block Parts diagram ENGINES/s6d1552c/060050a.png
ENGINES/s6d1552c/060050a.png · 19 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 6127-21-5850 Gasket (K2) 1 SN: 28424-UP
3 01010-31035 Bolt 36 SN: 28424-UP
4 01010-31030 Bolt 11 SN: 22144-UP
5 01602-01030 Washer 47 SN: 22144-UP
6 01640-01016 Washer 47 SN: 28424-UP
8 6127-21-5550 Gasket (K2) 1 SN: 28424-UP
10 01602-00825 Washer 2 SN: 22144-UP
14 01010-30820 Bolt 1 SN: 22144-UP
15 01602-00825 Washer 1 SN: 22144-UP
16 01580-00806 Nut 1 SN: 22144-UP
17 07044-13620 Plug 1 SN: 22144-UP
18 07000-03032 O-Ring (K2) 1 SN: 22144-UP
18 6693-22-5600 Valve Ass'Y 1 SN: 28424-UP
21 07040-02412 Plug 1 SN: 28424-UP
22 04020-00514 Pin 1 SN: 28424-UP
23 07000-63028 O-Ring (K2) 1 SN: 28424-UP
24 01010-31025 Bolt 2 SN: 22144-UP
25 01602-01030 Washer 2 SN: 22144-UP
26 01640-21016 Washer 2 SN: 22144-UP

S6D155-4J — Flywheel And Flywheel Housing

Komatsu S6D155-4J Cylinder Block Parts diagram ENGINES/s6d1552c/060060a.png
ENGINES/s6d1552c/060060a.png · 16 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
4 01010-31030 Bolt 12 SN: 22144-26893
5 6127-31-1330 Washer 12 SN: 22144-26893
8 6127-31-1350 Lock (K3) 3 SN: 22144-UP
10 6127-11-1620 Washer 6 SN: 26698-UP
16 07046-15520 Plug 1 SN: 22144-UP
17 04020-01434 Pin 4 SN: 22144-UP
19 6127-21-4813 Gasket (K2) 1 SN: 22144-UP
20 01010-31845 Bolt 4 SN: 22144-UP
21 01010-31855 Bolt 7 SN: 22144-UP
22 01010-31870 Bolt 3 SN: 22144-UP
23 01643-31845 Washer 14 SN: 22144-UP
26 07000-65220 O-Ring (K3) 1 SN: 22144-UP
27 01010-31025 Bolt 8 SN: 22144-UP
28 01602-01030 Washer 8 SN: 22144-UP
31 01010-61845 Bolt 8 SN: 22144-UP
15A 07043-00211 Plug 2 SN: 46283-UP

S6D155-4J — Oil Pan(#22144-23360)

Komatsu S6D155-4J Cylinder Block Parts diagram ENGINES/s6d1552c/060030a.png
ENGINES/s6d1552c/060030a.png · 16 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 6127-21-5811 Gasket 1 SN: 22144-@
3 01010-31035 Bolt 31 SN: 22144-@
4 01010-31030 Bolt 11 SN: 22144-@
6 01602-01030 Washer 47 SN: 22144-@
8 6127-21-5161 Gasket 1 SN: 22144-23360
9 01010-31020 Bolt 10 SN: 22144-23360
10 01602-01030 Washer 10 SN: 22144-23360
14 01602-00825 Washer 2 SN: 22144-@
17 01010-30820 Bolt 1 SN: 22144-@
18 01580-00806 Nut 1 SN: 22144-@
19 01602-00825 Washer 1 SN: 22144-@
21 07044-13620 Plug 1 SN: 22144-@
22 07000-03032 O-Ring 1 SN: 22144-@
25 01010-31030 Bolt 2 SN: 22144-@
26 01602-01030 Washer 2 SN: 22144-@
27 01640-01016 Washer 2 SN: 22144-@

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S6D155-4J Cylinder Block Parts lookup notes

Use this hub when the repair has already been narrowed to cylinder block parts. Confirm each part against the engine serial range, parts-book callout, quantity, and option notes before ordering.

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Parts-book verification before ordering

Komatsu engine parts often change by engine arrangement, serial range, diagram callout, and option note. 19PARTS uses engine-model organization to help you move from a broad Komatsu part number search into a tighter reference path, but final fitment should always be confirmed against your engine serial number and parts book.

Our Keep Ops Moving approach is simple: give buyers cleaner lookup paths, clear part-number references, and practical cross-navigation so rebuild shops, fleet teams, mechanics, and equipment owners can identify the right components faster.