Komatsu S6D155-4A Cylinder Head Parts Hub
Komatsu S6D155-4A 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 S6D155-4A 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.
S6D155-4A — Air Intake Manifold And Connection(#20000-40560)

| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 6127-11-4820 | Gasket (K1) | 3 | SN: 26311-@ |
| 3 | 01010-31285 | Bolt | 11 | SN: 20000-@ |
| 4 | 01010-31290 | Bolt | 1 | SN: 20000-@ |
| 5 | 01602-01236 | Washer | 12 | SN: 10014-@ |
| 6 | 01640-01223 | Washer | 12 | SN: 20000-@ |
| 8 | 6127-11-4640 | Gasket (K1) | 2 | SN: 10014-@ |
| 9 | 01010-31025 | Bolt | 8 | SN: .-@ |
| 9 | 01010-31025 | Bolt | 7 | SN: 20000-. |
| 10 | 01010-31030 | Bolt | 1 | SN: 20000-. |
| 11 | 01602-01030 | Washer | 8 | SN: 10014-@ |
| 14 | 07003-01824 | Gasket (K1) | 1 | SN: 10014-25933 |
| 15 | 07040-11007 | Plug | 1 | SN: 10014-. |
| 15 | 07042-00108 | Plug | 1 | SN: .-25933 |
| 16 | 07003-01015 | Gasket (K1) | 1 | SN: 10014-25933 |
| 17 | 6127-11-4620 | Gasket (K1) | 1 | SN: 10014-@ |
| 18 | 01010-31445 | Bolt | 4 | SN: 20000-@ |
| 19 | 01602-01442 | Washer | 4 | SN: 10014-@ |
| 20 | 01641-21423 | Washer | 4 | SN: 10014-@ |
| 22 | 02895-67091 | O-Ring (K1) | 4 | SN: 20000-@ |
| 29 | 6610-81-4150 | Gasket (K1) | 1 | SN: 14257-40560 |
| 30 | 6610-81-4240 | O-Ring (K1) | 1 | SN: 14257-40560 |
| 33 | 600-815-2190 | Gasket (K1) | 1 | SN: 12298-40560 |
| 36 | 01602-00825 | Washer | 4 | SN: 14257-40560 |
| 39 | 02895-67116 | O-Ring (K1) | 2 | SN: 20000-@ |
| 40 | 08670-00635 | Indicator | 1 | SN: 20000-23969 |
| 44 | 01010-31435 | Bolt | 4 | SN: 20000-@ |
| 45 | 01602-01442 | Washer | 4 | SN: 20000-@ |
| 47 | 6127-11-4620 | Gasket (K1) | 1 | SN: 20000-24342 |
| 48 | 01010-31435 | Bolt | 4 | SN: 20000-24342 |
| 49 | 01602-01442 | Washer | 4 | SN: 20000-24342 |
S6D155-4A — Air Intake Manifold And Connection(#20000-40560)

| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 6127-11-4820 | Gasket (K1) | 3 | SN: 26311-@ |
| 3 | 01010-31285 | Bolt | 11 | SN: 20000-@ |
| 4 | 01010-31290 | Bolt | 1 | SN: 20000-@ |
| 5 | 01602-01236 | Washer | 12 | SN: 10014-@ |
| 6 | 01640-01223 | Washer | 12 | SN: 20000-@ |
| 8 | 6127-11-4640 | Gasket (K1) | 2 | SN: 10014-@ |
| 9 | 01010-31025 | Bolt | 8 | SN: .-@ |
| 9 | 01010-31025 | Bolt | 7 | SN: 20000-. |
| 10 | 01010-31030 | Bolt | 1 | SN: 20000-. |
| 11 | 01602-01030 | Washer | 8 | SN: 10014-@ |
| 14 | 07003-01824 | Gasket (K1) | 1 | SN: 10014-25933 |
| 15 | 07040-11007 | Plug | 1 | SN: 10014-. |
| 15 | 07042-00108 | Plug | 1 | SN: .-25933 |
| 16 | 07003-01015 | Gasket (K1) | 1 | SN: 10014-25933 |
| 17 | 6127-11-4620 | Gasket (K1) | 1 | SN: 10014-@ |
| 18 | 01010-31445 | Bolt | 4 | SN: 20000-@ |
| 19 | 01602-01442 | Washer | 4 | SN: 10014-@ |
| 20 | 01641-21423 | Washer | 4 | SN: 10014-@ |
| 22 | 02895-67091 | O-Ring (K1) | 4 | SN: 20000-@ |
| 29 | 6610-81-4150 | Gasket (K1) | 1 | SN: 14257-40560 |
| 30 | 6610-81-4240 | O-Ring (K1) | 1 | SN: 14257-40560 |
| 33 | 600-815-2190 | Gasket (K1) | 1 | SN: 12298-40560 |
| 36 | 01602-00825 | Washer | 4 | SN: 14257-40560 |
| 39 | 02895-67116 | O-Ring (K1) | 2 | SN: 20000-@ |
| 40 | 08670-00635 | Indicator | 1 | SN: 20000-23969 |
| 44 | 01010-31435 | Bolt | 4 | SN: 20000-@ |
| 45 | 01602-01442 | Washer | 4 | SN: 20000-@ |
| 47 | 6127-11-4620 | Gasket (K1) | 1 | SN: 20000-24342 |
| 48 | 01010-31435 | Bolt | 4 | SN: 20000-24342 |
| 49 | 01602-01442 | Washer | 4 | SN: 20000-24342 |
S6D155-4A — Exhaust Manifold And Muffler(#14257-40560)

| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 5 | 07042-00108 | Plug | 2 | SN: .-@ |
| 6 | 07003-01015 | Gasket (K1) | 2 | SN: 14257-14544 |
| 8 | 07003-01824 | Gasket (K1) | 2 | SN: 14257-14544 |
| 12 | 6127-11-5810 | Gasket (K1) | 6 | SN: 14257-@ |
| 13 | 6127-11-5190 | Lock (K1) | 6 | SN: 14257-@ |
| 14 | 01011-61210 | Bolt | 12 | SN: 14257-@ |
| 15 | 6127-11-5180 | Spacer | 12 | SN: 14257-@ |
| 17 | 6127-81-2810 | Gasket (K1) | 1 | SN: 14257-@ |
| 20 | 6128-81-2830 | Ring | 3 | SN: 14257-@ |
| 25 | 01580-00806 | Nut | 4 | SN: 14257-. |
| 26 | 6128-11-5481 | Gasket | 1 | SN: 14257-@ |
| 33 | 6127-11-5180 | Spacer | 3 | SN: 14257-@ |
| 35 | 6127-11-5480 | Shim¤ 0.1Mm | 2 | SN: 14257-@ |
| 35 | 6127-11-5490 | Shim¤ 0.3Mm | 3 | SN: 14257-@ |
| 38 | 01641-21016 | Washer | 1 | SN: 14257-@ |
| 39 | 01602-01030 | Washer,(See Fig.Chassis) | 1 | SN: 14257-. |
| 40 | 01010-31040 | Bolt,(See Fig.Chassis) | 1 | SN: 14257-. |
| 42 | 01010-31225 | Bolt | 1 | SN: 14257-@ |
| 43 | 01602-01236 | Washer | 1 | SN: 14257-@ |
| 45 | 01582-01210 | Nut | 2 | SN: 14257-@ |
| 46 | 01010-61270 | Bolt | 1 | SN: ...-@ |
| 47 | 01010-61260 | Bolt | 1 | SN: 14257-... |
| 48 | 01010-61290 | Bolt | 1 | SN: 14257-... |
| 49 | 6127-11-5180 | Spacer | 1 | SN: 14257-@ |
| 14A | 01011-61210 | Bolt | 6 | SN: 14257-24804 |
| 14A | 01011-61225 | Bolt,(See Fig.1521A) | 6 | SN: 24805-@ |
| 15A | 6127-11-5180 | Spacer | 6 | SN: 14257-24804 |
| 15A | 6128-21-6730 | Spacer,(See Fig.1521A) | 1 | SN: 24805-@ |
S6D155-4A — Exhaust Manifold And Muffler(#14257-40560)

| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 5 | 07042-00108 | Plug | 2 | SN: .-@ |
| 6 | 07003-01015 | Gasket (K1) | 2 | SN: 14257-14544 |
| 8 | 07003-01824 | Gasket (K1) | 2 | SN: 14257-14544 |
| 12 | 6127-11-5810 | Gasket (K1) | 6 | SN: 14257-@ |
| 13 | 6127-11-5190 | Lock (K1) | 6 | SN: 14257-@ |
| 14 | 01011-61210 | Bolt | 12 | SN: 14257-@ |
| 15 | 6127-11-5180 | Spacer | 12 | SN: 14257-@ |
| 17 | 6127-81-2810 | Gasket (K1) | 1 | SN: 14257-@ |
| 20 | 6128-81-2830 | Ring | 3 | SN: 14257-@ |
| 25 | 01580-00806 | Nut | 4 | SN: 14257-. |
| 26 | 6128-11-5481 | Gasket | 1 | SN: 14257-@ |
| 33 | 6127-11-5180 | Spacer | 3 | SN: 14257-@ |
| 35 | 6127-11-5480 | Shim, 0.1Mm | 2 | SN: 14257-@ |
| 35 | 6127-11-5490 | Shim, 0.3Mm | 3 | SN: 14257-@ |
| 38 | 01641-21016 | Washer | 1 | SN: 14257-@ |
| 39 | 01602-01030 | Washer,(See Fig.Chassis) | 1 | SN: 14257-. |
| 40 | 01010-31040 | Bolt,(See Fig.Chassis) | 1 | SN: 14257-. |
| 42 | 01010-31225 | Bolt | 1 | SN: 14257-@ |
| 43 | 01602-01236 | Washer | 1 | SN: 14257-@ |
| 45 | 01582-01210 | Nut | 2 | SN: 14257-@ |
| 46 | 01010-61270 | Bolt | 1 | SN: ...-@ |
| 47 | 01010-61260 | Bolt | 1 | SN: 14257-... |
| 48 | 01010-61290 | Bolt | 1 | SN: 14257-... |
| 49 | 6127-11-5180 | Spacer | 1 | SN: 14257-@ |
| 14A | 01011-61210 | Bolt | 6 | SN: 14257-24804 |
| 14A | 01011-61225 | Bolt,(See Fig.1521A) | 6 | SN: 24805-@ |
| 15A | 6127-11-5180 | Spacer | 6 | SN: 14257-24804 |
| 15A | 6128-21-6730 | Spacer,(See Fig.1521A) | 1 | SN: 24805-@ |
S6D155-4A — Air Intake Manifold And Connection(#10014-19999)

| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 3 | 07005-02416 | Gasket (K1) | 3 | SN: 12298-19999 |
| 5 | 01010-31285 | Bolt | 12 | SN: 10014-19999 |
| 6 | 01602-01236 | Washer | 12 | SN: 10014-@ |
| 7 | 01640-21223 | Washer | 12 | SN: 10014-19999 |
| 9 | 6127-11-4640 | Gasket (K1) | 2 | SN: 10014-@ |
| 10 | 01010-31025 | Bolt | 8 | SN: 10014-19999 |
| 11 | 01602-01030 | Washer | 8 | SN: 10014-@ |
| 13 | 01010-31030 | Bolt | 1 | SN: 10014-19999 |
| 14 | 01010-31025 | Bolt | 1 | SN: 10014-19999 |
| 15 | 01602-01030 | Washer | 2 | SN: 10014-19999 |
| 16 | 01640-21016 | Washer | 2 | SN: 10014-19999 |
| 19 | 07003-01824 | Gasket (K1) | 1 | SN: 10014-@ |
| 20 | 07040-11007 | Plug | 1 | SN: 10014-@ |
| 21 | 07003-01015 | Gasket (K1) | 1 | SN: 10014-@ |
| 22 | 6127-11-4620 | Gasket (K1) | 1 | SN: 10014-@ |
| 23 | 01010-31440 | Bolt | 4 | SN: 10278-19999 |
| 24 | 01602-01442 | Washer | 4 | SN: 10014-@ |
| 25 | 01641-21423 | Washer | 4 | SN: 10014-@ |
| 28 | 6112-11-4570 | O-Ring (K1) | 2 | SN: 11646-19999 |
| 31 | 01010-31430 | Bolt | 4 | SN: 10278-19999 |
| 32 | 01602-01442 | Washer | 4 | SN: 10014-19999 |
| 34 | 01010-31025 | Bolt | 2 | SN: 10014-19999 |
| 35 | 01602-01030 | Washer | 2 | SN: 10014-19999 |
| 36 | 01640-21016 | Washer | 2 | SN: 10014-19999 |
| 42 | 01602-00825 | Washer | 4 | SN: 14257-@ |
| 48 | 6610-81-4150 | Gasket (K1) | 1 | SN: 12298-@ |
| 49 | 6610-81-4240 | O-Ring (K1) | 1 | SN: 12298-@ |
| 50 | 6610-81-8820 | Elbow | 1 | SN: 14257-19999 |
| 52 | 600-815-2190 | Gasket (K1) | 1 | SN: 12298-@ |
S6D155-4A — Air Intake Manifold And Connection(#10014-19999)

| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 3 | 07005-02416 | Gasket (K1) | 3 | SN: 12298-19999 |
| 5 | 01010-31285 | Bolt | 12 | SN: 10014-19999 |
| 6 | 01602-01236 | Washer | 12 | SN: 10014-@ |
| 7 | 01640-21223 | Washer | 12 | SN: 10014-19999 |
| 9 | 6127-11-4640 | Gasket (K1) | 2 | SN: 10014-@ |
| 10 | 01010-31025 | Bolt | 8 | SN: 10014-19999 |
| 11 | 01602-01030 | Washer | 8 | SN: 10014-@ |
| 13 | 01010-31030 | Bolt | 1 | SN: 10014-19999 |
| 14 | 01010-31025 | Bolt | 1 | SN: 10014-19999 |
| 15 | 01602-01030 | Washer | 2 | SN: 10014-19999 |
| 16 | 01640-21016 | Washer | 2 | SN: 10014-19999 |
| 19 | 07003-01824 | Gasket (K1) | 1 | SN: 10014-@ |
| 20 | 07040-11007 | Plug | 1 | SN: 10014-@ |
| 21 | 07003-01015 | Gasket (K1) | 1 | SN: 10014-@ |
| 22 | 6127-11-4620 | Gasket (K1) | 1 | SN: 10014-@ |
| 23 | 01010-31440 | Bolt | 4 | SN: 10278-19999 |
| 24 | 01602-01442 | Washer | 4 | SN: 10014-@ |
| 25 | 01641-21423 | Washer | 4 | SN: 10014-@ |
| 28 | 6112-11-4570 | O-Ring (K1) | 2 | SN: 11646-19999 |
| 31 | 01010-31430 | Bolt | 4 | SN: 10278-19999 |
| 32 | 01602-01442 | Washer | 4 | SN: 10014-19999 |
| 34 | 01010-31025 | Bolt | 2 | SN: 10014-19999 |
| 35 | 01602-01030 | Washer | 2 | SN: 10014-19999 |
| 36 | 01640-21016 | Washer | 2 | SN: 10014-19999 |
| 42 | 01602-00825 | Washer | 4 | SN: 14257-@ |
| 48 | 6610-81-4150 | Gasket (K1) | 1 | SN: 12298-@ |
| 49 | 6610-81-4240 | O-Ring (K1) | 1 | SN: 12298-@ |
| 50 | 6610-81-8820 | Elbow | 1 | SN: 14257-19999 |
| 52 | 600-815-2190 | Gasket (K1) | 1 | SN: 12298-@ |
Shop the Komatsu S6D155-4A Cylinder Head Parts collection
S6D155-4A 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
- Komatsu Engine Bolt 01010-30630 — SKU KOM-01010-30630 | Bolt
- Komatsu Engine Bolt 01010-30818 — SKU KOM-01010-30818 | Bolt
- Komatsu Engine Bolt 01010-30822 — SKU KOM-01010-30822 | Bolt
- Komatsu Engine Bolt 01010-31285 — SKU KOM-01010-31285 | Bolt
- Komatsu Engine Bolt 01010-31290 — SKU KOM-01010-31290 | Bolt
- Komatsu Engine Bolt 01010-31435 — SKU KOM-01010-31435 | Bolt
- Komatsu Engine Bolt 01010-31440 — SKU KOM-01010-31440 | Bolt
- Komatsu Engine Bolt 01010-31445 — SKU KOM-01010-31445 | Bolt
- Komatsu Engine Bolt 01010-31480 — SKU KOM-01010-31480 | Bolt
- Komatsu Engine Bolt 01010-61260 — SKU KOM-01010-61260 | Product code 01010-E1260 | Bolt
- Komatsu Engine Bolt 01010-61270 — SKU KOM-01010-61270 | Product code 01010-E1270 | Bolt
- Komatsu Engine Bolt 01010-61290 — SKU KOM-01010-61290 | Bolt
- Komatsu Engine Bolt 01011-31205 — SKU KOM-01011-31205 | Bolt
- Komatsu Engine Bolt 01011-31210 — SKU KOM-01011-31210 | Bolt
- Komatsu Engine Bolt 01011-61210 — SKU KOM-01011-61210 | Product code 01011-31210 | Bolt
- Komatsu Engine Bolt 01011-61225 — SKU KOM-01011-61225 | Bolt
- Komatsu Engine Breather Ass'Y 6127-11-8211 — SKU KOM-6127-11-8211 | Breather Ass'Y
- Komatsu Engine Elbow 6610-81-8820 — SKU KOM-6610-81-8820 | Elbow
- Komatsu Engine Element Ass'Y 6128-81-7041 — SKU KOM-6128-81-7041 | Product code 6128-81-7040 | Element Ass'Y
- Komatsu Engine Element Ass'Y 6128-81-7042 — SKU KOM-6128-81-7042 | Product code 6128-81-7040 | Element Ass'Y
- Komatsu Engine Element Ass'Y Outer 600-181-4400 — SKU KOM-600-181-4400 | Element Ass'Y Outer
- Komatsu Engine Gasket 600-815-2190 — SKU KOM-600-815-2190 | Gasket
- Komatsu Engine Gasket 6127-11-4620 — SKU KOM-6127-11-4620 | Product code 6127-11-4621 | Gasket
- Komatsu Engine Gasket 6127-11-4640 — SKU KOM-6127-11-4640 | Gasket
- Komatsu Engine Gasket 6127-11-4820 — SKU KOM-6127-11-4820 | Product code 6127-11-4822 | Gasket
- Komatsu Engine Gasket 6127-11-6470 — SKU KOM-6127-11-6470 | Product code 6127-11-6471 | Gasket
- Komatsu Engine Gasket 6127-11-8240 — SKU KOM-6127-11-8240 | Gasket
- Komatsu Engine Gasket 6127-11-8812 — SKU KOM-6127-11-8812 | Gasket
- Komatsu Engine Gasket 6127-61-6850 — SKU KOM-6127-61-6850 | Gasket
- Komatsu Engine Gasket 6127-81-4820 — SKU KOM-6127-81-4820 | Gasket
This hub includes 70 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.