Komatsu S6D155-4AA Cylinder Head Parts Hub

Komatsu S6D155-4AA Cylinder Head 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 S6D155-4AA Cylinder Head 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.

S6D155-4AA — Cylinder Head Gasket Kit

Komatsu S6D155-4AA Cylinder Head Parts diagram ENGINES/s6d1554c/210020a.png
ENGINES/s6d1554c/210020a.png · 80 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
1 02895-67091 O-Ring 4 SN: 25887-UP
1 02895-67116 O-Ring 2 SN: 25887-UP
1 02895-67116 O-Ring 10 SN: 25887-UP
1 07000-02016 O-Ring 12 SN: 25887-UP
1 07000-03022 O-Ring 6 SN: 25887-UP
1 07000-03075 O-Ring 2 SN: 25887-UP
1 07000-05055 O-Ring 2 SN: 25887-UP
1 07000-05065 O-Ring 1 SN: 25887-UP
1 07000-05075 O-Ring 1 SN: 25887-UP
1 07000-23038 O-Ring 1 SN: 25887-UP
1 07000-62020 O-Ring 1 SN: 25887-UP
1 07000-62070 O-Ring 1 SN: 25887-UP
1 07000-63035 O-Ring 1 SN: 25887-UP
1 07003-01015 Gasket 1 SN: 25887-55328
1 07003-01015 Gasket 4 SN: 25887-UP
1 07003-01419 Gasket 1 SN: 25887-UP
1 07003-01824 Gasket 1 SN: 25887-55328
1 07003-01824 Gasket 4 SN: 25887-UP
1 07005-00812 Gasket 3 SN: 25887-UP
1 07005-00812 Gasket 12 SN: 25887-UP
1 07005-00812 Gasket 24 SN: 25887-UP
1 07005-00812 Gasket 1 SN: 25887-UP
1 07005-01412 Gasket 10 SN: 25887-UP
1 07005-01612 Gasket 1 SN: 25887-UP
1 07005-01612 Gasket 4 SN: 25887-UP
1 07005-02416 Gasket 3 SN: 25887-UP
1 08034-00414 Band 3 SN: 25887-UP
1 08034-00519 Band 3 SN: 25887-UP
1 600-815-2190 Gasket 1 SN: 25887-UP
1 6112-11-4570 O-Ring 2 SN: 25887-UP
1 6127-11-1087 Gasket Ass'Y 3 SN: 25887-UP
1 6127-11-4621 Gasket 1 SN: 55329-UP
1 6127-11-4621 Gasket 1 SN: 25887-UP
1 6127-11-4640 Gasket 2 SN: 25887-55328
1 6127-11-4641 Gasket 2 SN: 55329-UP
1 6127-11-4822 Gasket 3 SN: 55329-UP
1 6127-11-5190 Lock 6 SN: 25887-UP
1 6127-11-5480 Shim¤ 0.1Mm 2 SN: 25887-UP
1 6127-11-5490 Shim¤ 0.3Mm 3 SN: 25887-UP
1 6127-11-5810 Gasket 6 SN: 25887-UP
1 6127-11-6431 Gasket 1 SN: 55329-UP
1 6127-11-6471 Gasket 1 SN: 55329-UP
1 6127-11-7813 Gasket 3 SN: 55329-UP
1 6127-11-8240 Gasket 1 SN: 25887-UP
1 6127-11-8812 Gasket 3 SN: 25887-UP
1 6127-41-4541 Seal 12 SN: 25887-UP
1 6127-51-6821 Gasket 1 SN: 25887-55328
1 6127-51-6822 Gasket 1 SN: 55329-UP
1 6127-81-2810 Gasket 1 SN: 25887-UP
1 6127-81-4823 Gasket 1 SN: 55329-UP
1 6128-11-4721 Gasket 2 SN: 25887-UP
1 6128-11-4731 Gasket 1 SN: 25887-UP
1 6128-11-5481 Gasket 1 SN: 25887-UP
1 6128-11-5611 Gasket 1 SN: 55329-UP
1 6128-11-5611 Gasket 1 SN: 25887-UP
1 6128-11-6812 Gasket 6 SN: 55329-UP
1 6128-51-8152 Gasket 2 SN: 55329-UP
1 6128-51-8152 Gasket 2 SN: 25887-UP
1 6128-51-8153 Gasket 2 SN: 25887-UP
1 6128-61-6831 Gasket 3 SN: 25887-UP
1 6128-61-6841 Gasket 1 SN: 25887-UP
1 6128-81-2810 Gasket 1 SN: 25887-UP
1 6128-81-4621 Gasket 1 SN: 58684-UP
1 6128-81-4621 Gasket 1 SN: 25887-UP
1 6128-K1-9901 Gasket Kit,Cylinder Head 1 SN: 55329-UP
1 6162-13-6440 Seal 2 SN: 55329-UP
1 6162-63-6240 O-Ring 4 SN: 25887-UP
1 6610-81-4150 Gasket 1 SN: 25887-UP
1 6610-81-4240 O-Ring 1 SN: 25887-UP
1 6710-11-6451 Seal 2 SN: 25887-55328
1 69902-0-3270 Gasket 1 SN: 25887-UP
1 The part specified in the line above can be used instead of this part6127-11-4620 Gasket 1 SN: 25887-55328
1 The part specified in the line above can be used instead of this part6127-11-4820 Gasket 3 SN: 25887-55328
1 The part specified in the line above can be used instead of this part6127-11-6430 Gasket 1 SN: 25887-55328
1 The part specified in the line above can be used instead of this part6127-11-6470 Gasket 1 SN: 25887-55328
1 The part specified in the line above can be used instead of this part6127-81-4821 Gasket 1 SN: 25887-55328
1 The part specified in the line above can be used instead of this part6128-11-5610 Gasket 1 SN: 25887-55328
1 The part specified in the line above can be used instead of this part6128-11-6811 Gasket 6 SN: 25887-55328
1 The part specified in the line above can be used instead of this part6128-51-8151 Gasket 2 SN: 25887-55328
1 The part specified in the line above can be used instead of this part6128-61-6860 Gasket 1 SN: 25887-55328

S6D155-4AA — Air Intake Manifold And Connection(#25887-36495)

Komatsu S6D155-4AA Cylinder Head Parts diagram ENGINES/s6d1554c/030050a.png
ENGINES/s6d1554c/030050a.png · 26 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 6127-11-4820 Gasket (K1) 3 SN: 25887-@
5 01602-01236 Washer,Spring 12 SN: 25887-@
6 01640-01223 Washer 12 SN: 25887-@
8 6127-11-4640 Gasket (K1) 2 SN: 25887-36495
11 01602-01030 Washer,Spring 8 SN: 25887-@
13 6127-11-4620 Gasket (K1) 1 SN: 25887-36495
14 01010-31445 Bolt 4 SN: 25887-@
15 01602-01442 Washer,Spring 4 SN: 25887-@
16 01641-21423 Washer 4 SN: 25887-@
18 02895-67091 O-Ring (K1) 4 SN: 25887-@
25 6610-81-4150 Gasket (K1) 1 SN: 25887-@
26 6610-81-4240 O-Ring (K1) 1 SN: 25887-@
27 6610-81-8820 Elbow 1 SN: 25887-@
30 600-815-2190 Gasket (K1) 1 SN: 25887-@
32 01010-80830 Bolt 4 SN: 25887-@
33 01602-00825 Washer,Spring 4 SN: 25887-@
36 02895-67116 O-Ring (K1) 2 SN: 25887-@
40 01010-31435 Bolt 4 SN: 25887-@
41 01602-01442 Washer,Spring 4 SN: 25887-@
42 6127-81-4821 Gasket (K1) 1 SN: 25887-@
43 01640-21016 Washer 8 SN: 25887-@
44 01602-01030 Washer,Spring 8 SN: 25887-@
45 01580-01008 Nut 8 SN: 25887-@
47 07003-01824 Gasket (K1) 1 SN: 25887-36495
48 07040-11007 Plug 1 SN: 25887-36495
49 07003-01015 Gasket (K1) 1 SN: 25887-36495

S6D155-4AA — Air Intake Manifold And Connection(#36496-)

Komatsu S6D155-4AA Cylinder Head Parts diagram ENGINES/s6d1554c/030060a.png
ENGINES/s6d1554c/030060a.png · 27 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 6127-11-4822 Gasket (K1) 3 SN: 55329-UP
2 The part specified in the line above can be used instead of this part6127-11-4820 Gasket (K1) 3 SN: 25887-55328
5 01602-01236 Washer,Spring 12 SN: 25887-UP
6 01640-01223 Washer 12 SN: 25887-UP
8 6127-11-4641 Gasket (K1) 2 SN: 55329-UP
8 6127-11-4641 Gasket 2 SN: 36496-55328
11 01602-01030 Washer,Spring 8 SN: 25887-UP
14 6127-11-4621 Gasket (K1) 1 SN: 55329-UP
14 6127-11-4621 Gasket 1 SN: 36496-55328
15 01010-31445 Bolt 4 SN: 25887-UP
16 01602-01442 Washer,Spring 4 SN: 25887-UP
17 01641-21423 Washer 4 SN: 25887-UP
19 02895-67091 O-Ring (K1) 4 SN: 25887-UP
26 6610-81-4150 Gasket (K1) 1 SN: 25887-UP
27 6610-81-4240 O-Ring (K1) 1 SN: 25887-UP
28 6610-81-8820 Elbow 1 SN: 25887-UP
31 600-815-2190 Gasket (K1) 1 SN: 25887-UP
33 01010-80830 Bolt 4 SN: 25887-UP
34 01602-00825 Washer,Spring 4 SN: 25887-UP
37 02895-67116 O-Ring (K1) 2 SN: 25887-UP
41 01010-31435 Bolt 4 SN: 25887-UP
42 01602-01442 Washer,Spring 4 SN: 25887-UP
43 6127-81-4823 Gasket (K1) 1 SN: 55329-UP
43 The part specified in the line above can be used instead of this part6127-81-4821 Gasket (K1) 1 SN: 25887-55328
44 01640-21016 Washer 8 SN: 25887-UP
45 01602-01030 Washer,Spring 8 SN: 25887-UP
46 01580-01008 Nut 8 SN: 25887-UP

S6D155-4AA — Water Manifold And Thermostat(#36496-)

Komatsu S6D155-4AA Cylinder Head Parts diagram ENGINES/s6d1554c/030140a.png
ENGINES/s6d1554c/030140a.png · 19 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
8 07000-05075 O-Ring (K1) 1 SN: 25887-UP
9 07000-05065 O-Ring (K1) 1 SN: 25887-UP
10 07000-05055 O-Ring (K1) 2 SN: 25887-UP
11 6128-11-6812 Gasket (K1) 6 SN: 55329-UP
11 The part specified in the line above can be used instead of this part6128-11-6811 Gasket (K1) 6 SN: 36496-55328
14 01602-01030 Washer,Spring 12 SN: 25887-UP
15 600-421-6610 Thermostat 2 SN: 47067-UP
15 The part specified in the line above can be used instead of this part6127-11-6520 Thermostat 2 SN: 25887-47066
16 6162-13-6440 Seal,Thermostat (K1) 2 SN: 55329-UP
16 6162-13-6440 Seal,Thermostat 2 SN: 49081-55328
18 6127-11-6431 Gasket (K1) 1 SN: 55329-UP
18 The part specified in the line above can be used instead of this part6127-11-6430 Gasket (K1) 1 SN: 25887-55328
20 6127-11-6471 Gasket (K1) 1 SN: 55329-UP
20 The part specified in the line above can be used instead of this part6127-11-6470 Gasket (K1) 1 SN: 25887-55328
22 01010-81095 Bolt 2 SN: 25887-UP
24 01602-01030 Washer,Spring 10 SN: 25887-UP
27 01602-01236 Washer,Spring 2 SN: 25887-UP
29 07005-01612 Gasket (K1) 1 SN: 36496-UP
30 07042-00312 Plug 1 SN: 36496-UP

S6D155-4AA — Air Intake Manifold And Connection (With A.P.S.)(#58767-)

Komatsu S6D155-4AA Cylinder Head Parts diagram ENGINES/s6d1554c/030070a.png
ENGINES/s6d1554c/030070a.png · 17 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 6127-11-4822 Gasket (K1) 3 SN: 58767-UP
5 01602-01236 Washer,Spring 12 SN: 58767-UP
6 01640-01223 Washer 12 SN: 58767-UP
8 6127-11-4641 Gasket (K1) 2 SN: 58767-UP
11 01602-01030 Washer,Spring 8 SN: 58767-UP
14 6127-11-4621 Gasket (K1) 1 SN: 58767-UP
15 01010-31445 Bolt 4 SN: 58767-UP
16 01602-01442 Washer,Spring 4 SN: 58767-UP
17 01641-21423 Washer 4 SN: 58767-UP
19 02895-67091 O-Ring (K1) 4 SN: 58767-UP
21 02895-67116 O-Ring (K1) 2 SN: 58767-UP
25 01010-31435 Bolt 4 SN: 58767-UP
26 01602-01442 Washer,Spring 4 SN: 58767-UP
27 6127-81-4823 Gasket (K1) 1 SN: 58767-UP
28 01640-21016 Washer 8 SN: 58767-UP
29 01602-01030 Washer,Spring 8 SN: 58767-UP
30 01580-01008 Nut 8 SN: 58767-UP

S6D155-4AA — Muffler

Komatsu S6D155-4AA Cylinder Head Parts diagram ENGINES/s6d1554c/030120a.png
ENGINES/s6d1554c/030120a.png · 15 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 6128-81-2830 Ring,Seal 3 SN: 25887-UP
8 6128-11-5481 Gasket (K1) 1 SN: 25887-UP
16 01580-11411 Nut 1 SN: 54768-UP
16 The part specified in the line above can be used instead of this part01580-11008 Nut 2 SN: 40715-54767
21 6127-11-5180 Spacer 3 SN: 25887-UP
23 6127-11-5480 Shim¤ 0.1Mm (K1) 2 SN: 25887-UP
23 6127-11-5490 Shim¤ 0.3Mm (K1) 3 SN: 25887-UP
26 01641-21016 Washer 1 SN: 25887-UP
27 01602-01030 Washer,Spring 1 SN: 25887-UP
30 01010-E1225 Bolt 1 SN: 25887-UP
31 01602-01236 Washer,Spring 1 SN: 25887-UP
33 01582-01210 Nut 3 SN: 25887-UP
34 01050-61260 Bolt 2 SN: 25887-UP
35 01010-E1290 Bolt 1 SN: 25887-UP
36 6127-11-5180 Spacer 1 SN: 25887-UP

Shop the Komatsu S6D155-4AA Cylinder Head Parts collection

S6D155-4AA Cylinder Head Parts lookup notes

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

Related parent hubs

Featured parts in this hub

This hub includes 53 linked product listings. Use the collection link above to browse the full set.

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.