Komatsu SA6D155-4A Cylinder Block Parts Hub
Komatsu SA6D155-4A 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 SA6D155-4A 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.
SA6D155-4A — Cylinder Block
| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 07046-15020 | Plug | 1 | SN: 50816-UP |
| 4 | 04020-01842 | Pin,Dowel | 2 | SN: 50816-UP |
| 5 | 04020-00820 | Pin,Dowel | 2 | SN: 50816-UP |
| 9 | 07043-70211 | Plug | 5 | SN: 52911-UP |
| 10 | 07040-11409 | Plug | 1 | SN: 50816-UP |
| 11 | 07005-01412 | Gasket (K2) | 1 | SN: 50816-UP |
| 12 | 04020-01024 | Pin,Dowel | 6 | SN: 50816-UP |
| 22 | 04020-00616 | Pin,Dowel | 2 | SN: 50816-UP |
| 24 | 6127-21-1741 | Washer | 14 | SN: 50816-UP |
| 26 | 01010-31230 | Bolt | 4 | SN: 50816-52393 |
| 26 | The part specified in the line above can be used instead of this part01010-31235 | Bolt | 4 | SN: 52394-57470 |
| 27 | 01643-31232 | Washer | 4 | SN: 52039-UP |
| 27 | 01650-21212 | Washer,Lock (K2) | 4 | SN: 50816-52038 |
| 30 | 01643-31032 | Washer | 2 | SN: 50816-UP |
| 32 | 01010-31035 | Bolt | 3 | SN: 50816-52393 |
| 32 | The part specified in the line above can be used instead of this part01010-31040 | Bolt | 3 | SN: 52394-57470 |
| 33 | 01650-21012 | Washer,Lock (K2) | 3 | SN: 50816-52038 |
| 36 | 6127-21-2431 | Lock (K2) | 1 | SN: 50816-52038 |
| 39 | 07043-A0108 | Plug,(For No.3 Cylinder) | 1 | SN: 58143-UP |
| 40 | 07000-72016 | O-Ring (K2) | 1 | SN: 58779-UP |
| 40 | The part and the part specified in the line immediately above are interchangeable.07000-62016 | O-Ring (K2) | 1 | SN: 50816-58778 |
| 41 | 01010-80818 | Bolt | 6 | SN: 57471-UP |
| 41 | The part specified in the line above can be used instead of this part01010-30818 | Bolt | 6 | SN: 50816-57470 |
| 42 | 01602-00825 | Washer,Spring | 6 | SN: 50816-UP |
| 47 | The part specified in the line above can be used instead of this part01010-31025 | Bolt | 4 | SN: 50816-57470 |
| 48 | 01602-01030 | Washer,Spring | 4 | SN: 50816-UP |
| 50 | The part specified in the line above can be used instead of this part6127-51-6920 | Gasket (K2) | 1 | SN: 50816-55406 |
| 51 | The part specified in the line above can be used instead of this part01010-31020 | Bolt | 2 | SN: 50816-57470 |
| 52 | 01602-01030 | Washer,Spring | 2 | SN: 50816-UP |
| 54 | 6127-21-2252 | Seal,Clevis (K2) | 6 | SN: 50816-UP |
| 55 | 6127-21-2221 | O-Ring,Center (K2) | 6 | SN: 50816-UP |
| 56 | 6127-21-2241 | O-Ring,Lower (K2) | 6 | SN: 50816-UP |
| 58 | 07217-51013 | Elbow | 1 | SN: 50816-UP |
| 60 | 07005-01412 | Gasket (K2) | 1 | SN: 50816-UP |
| 62 | 6127-21-7401 | Cap | 1 | SN: 50816-UP |
| 63 | 6128-21-7450 | Ring,Seal | 1 | SN: 50816-UP |
| 64 | The part specified in the line above can be used instead of this part6127-21-6521 | Gasket (K2) | 1 | SN: 50816-55406 |
| 66 | 01602-00825 | Washer,Spring | 8 | SN: 50816-UP |
| 68 | 01602-01030 | Washer,Spring | 1 | SN: 50816-UP |
| 71 | 01010-E1225 | Bolt | 1 | SN: 57245-UP |
| 71 | The part specified in the line above can be used instead of this part01010-31225 | Bolt | 1 | SN: 50816-57244 |
| 72 | 01602-01236 | Washer,Spring | 1 | SN: 50816-UP |
SA6D155-4A — Cylinder Block
| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 07046-15020 | Plug | 2 | SN: 50816-UP |
| 4 | 04020-01842 | Pin,Dowel | 2 | SN: 50816-UP |
| 5 | 04020-00820 | Pin,Dowel | 2 | SN: 50816-UP |
| 10 | 07040-11409 | Plug | 1 | SN: 50816-UP |
| 11 | 07005-01412 | Gasket (K2) | 1 | SN: 50816-UP |
| 12 | 04020-01024 | Pin,Dowel | 6 | SN: 50816-UP |
| 22 | 04020-00616 | Pin,Dowel | 2 | SN: 50816-UP |
| 24 | 6127-21-1741 | Washer | 14 | SN: 50816-UP |
| 26 | 01010-31230 | Bolt | 4 | SN: 50816-UP |
| 27 | 01650-21212 | Washer,Lock (K2) | 4 | SN: 50816-UP |
| 30 | 01643-31032 | Washer | 2 | SN: 50816-UP |
| 32 | 01010-31035 | Bolt | 3 | SN: 50816-UP |
| 33 | 01650-21012 | Washer,Lock (K2) | 3 | SN: 50816-UP |
| 36 | 6127-21-2431 | Lock (K2) | 1 | SN: 50816-UP |
| 40 | 07000-62016 | O-Ring (K2) | 1 | SN: 50816-UP |
| 41 | 01010-30818 | Bolt | 6 | SN: 50816-UP |
| 42 | 01602-00825 | Washer,Spring | 6 | SN: 50816-UP |
| 46 | 6610-21-5671 | Gasket (K2) | 1 | SN: 50816-UP |
| 47 | 01010-31025 | Bolt | 4 | SN: 50816-UP |
| 48 | 01602-01030 | Washer,Spring | 4 | SN: 50816-UP |
| 50 | 6127-51-6920 | Gasket (K2) | 1 | SN: 50816-UP |
| 51 | 01010-31020 | Bolt | 2 | SN: 50816-UP |
| 52 | 01602-01030 | Washer,Spring | 2 | SN: 50816-UP |
| 55 | 6127-21-2221 | O-Ring,Center (K2) | 6 | SN: 50816-UP |
| 56 | 6127-21-2241 | O-Ring,Lower (K2) | 6 | SN: 50816-UP |
| 58 | 07217-51013 | Elbow | 1 | SN: 50816-UP |
| 60 | 07005-01412 | Gasket (K2) | 1 | SN: 50816-UP |
| 62 | 6127-21-7401 | Cap | 1 | SN: 50816-UP |
| 63 | 6128-21-7450 | Ring,Seal | 1 | SN: 50816-UP |
| 64 | 6127-21-6521 | Gasket (K2) | 1 | SN: 50816-UP |
| 66 | 01602-00825 | Washer,Spring | 8 | SN: 50816-UP |
| 67 | 01010-31016 | Bolt | 1 | SN: 50816-UP |
| 68 | 01602-01030 | Washer,Spring | 1 | SN: 50816-UP |
| 71 | 01010-31225 | Bolt | 1 | SN: 50816-UP |
| 72 | 01602-01236 | Washer,Spring | 1 | SN: 50816-UP |
SA6D155-4A — Gear Case And Cover
| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 04020-01434 | Pin,Dowel | 2 | SN: 50816-UP |
| 3 | 04020-00616 | Pin,Dowel | 2 | SN: 50816-UP |
| 8 | 01582-01008 | Nut | 6 | SN: 50816-UP |
| 9 | 01602-01030 | Washer,Spring | 6 | SN: 50816-UP |
| 10 | 6127-21-3160 | Grommet (K2) | 2 | SN: 50816-UP |
| 11 | 6128-21-3811 | Gasket (K2) | 1 | SN: 55407-UP |
| 11 | The part specified in the line above can be used instead of this part6128-21-3810 | Gasket (K2) | 1 | SN: 50816-55406 |
| 12 | 01010-31650 | Bolt | 15 | SN: 50816-UP |
| 13 | 01602-01648 | Washer,Spring | 15 | SN: 50816-UP |
| 18 | 04020-00820 | Pin,Dowel | 1 | SN: 50816-UP |
| 20 | 01643-31032 | Washer | 6 | SN: 52039-UP |
| 23 | 6127-31-6221 | Bushing | 1 | SN: 50816-UP |
| 24 | 6127-31-6261 | Metal,Thrust | 1 | SN: 50816-UP |
| 25 | 6128-21-3231 | Gasket (K2) | 1 | SN: 55407-UP |
| 25 | The part specified in the line above can be used instead of this part6128-21-3230 | Gasket (K2) | 1 | SN: 50816-55406 |
| 26 | 01010-61475 | Bolt | 11 | SN: 58830-UP |
| 26 | The part specified in the line above can be used instead of this part01010-31475 | Bolt | 11 | SN: 50816-58829 |
| 27 | 01010-61455 | Bolt | 4 | SN: 58830-UP |
| 27 | The part specified in the line above can be used instead of this part01010-31455 | Bolt | 4 | SN: 50816-58829 |
| 28 | 01010-61480 | Bolt | 2 | SN: 58830-UP |
| 28 | The part specified in the line above can be used instead of this part01010-31480 | Bolt | 2 | SN: 50816-58829 |
| 29 | 01602-01442 | Washer,Spring | 17 | SN: 50816-UP |
| 30 | 01011-61625 | Bolt | 2 | SN: 58830-UP |
| 31 | 01602-01648 | Washer,Spring | 2 | SN: 50816-UP |
| 32 | 01641-21423 | Washer | 2 | SN: 50816-UP |
| 34 | 01010-80612 | Bolt | 2 | SN: 57471-UP |
| 35 | 01602-00619 | Washer,Spring | 2 | SN: 50816-UP |
| 36 | 01642-20608 | Washer | 2 | SN: 50816-UP |
| 38 | 01010-61440 | Bolt | 2 | SN: 58830-UP |
| 38 | The part specified in the line above can be used instead of this part01010-31440 | Bolt | 2 | SN: 50816-58829 |
| 39 | 01602-01442 | Washer,Spring | 2 | SN: 50816-UP |
| 40 | 6127-21-3510 | Seal, Front (K2) | 1 | SN: 50816-UP |
SA6D155-4A — Power Take Off
| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 6128-21-4170 | Shaft | 1 | SN: 50816-UP |
| 3 | 06004-00215 | Bearing | 1 | SN: 50816-UP |
| 5 | 6128-21-4190 | Ring,Dowel | 1 | SN: 50816-UP |
| 7 | 07000-05175 | O-Ring (K3) | 1 | SN: 50816-UP |
| 8 | 06000-06314 | Bearing,Ball | 1 | SN: 50816-UP |
| 9 | 01530-06814 | Nut | 1 | SN: 50816-UP |
| 10 | 01658-26823 | Washer (K3) | 1 | SN: 50816-UP |
| 12 | 07043-50108 | Plug | 1 | SN: 50816-UP |
| 13 | 07000-05165 | O-Ring (K3) | 1 | SN: 50816-UP |
| 14 | The part specified in the line above can be used instead of this part01010-31030 | Bolt | 6 | SN: 50816-57470 |
| 15 | 01602-01030 | Washer,Spring | 6 | SN: 50816-UP |
| 16 | 01641-21016 | Washer | 3 | SN: 50816-UP |
| 18 | 6128-21-4510 | Shaft | 1 | SN: 50816-UP |
| 19 | The part specified in the line above can be used instead of this part01010-31020 | Bolt | 6 | SN: 50816-57470 |
| 20 | 01643-31032 | Washer | 6 | SN: 52039-UP |
| 20 | The part specified in the line above can be used instead of this part6127-21-4550 | Lock (K3) | 3 | SN: 50816-52038 |
| 21 | 06000-06010 | Bearing,Ball | 2 | SN: 50816-UP |
| 22 | 6128-21-4540 | Collar | 1 | SN: 50816-UP |
| 26 | 07000-03110 | O-Ring (K3) | 1 | SN: 50816-UP |
| 27 | The part specified in the line above can be used instead of this part01010-31240 | Bolt,(For Shipping) | 2 | SN: 50816-57470 |
| 28 | 01602-01236 | Washer,Spring (For Shipping) | 2 | SN: 50816-UP |
| 29 | 6128-21-4321 | Gear,Idle | 1 | SN: 50816-UP |
| 31 | The part specified in the line above can be used instead of this part01010-31230 | Bolt | 6 | SN: 50816-57470 |
| 32 | 01602-01236 | Washer,Spring | 6 | SN: 50816-UP |
| 33 | 06002-30217 | Bearing | 2 | SN: 50816-UP |
| 35 | 6128-21-4340 | Retainer | 1 | SN: 50816-UP |
| 36 | 6128-21-4600 | Shim Ass'Y (K3) | 1 | SN: 50816-UP |
| 36 | 6128-21-4610 | Shim, 1.0Mm | 4 | SN: 50816-UP |
| 36 | 6128-21-4620 | Shim, 0.5Mm | 2 | SN: 50816-UP |
| 36 | 6128-21-4630 | Shim, 0.1Mm | 1 | SN: 50816-UP |
| 38 | The part specified in the line above can be used instead of this part6128-21-4360 | Lock (K3) | 1 | SN: 50816-52038 |
SA6D155-4A — Power Take Off
| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 6128-21-4170 | Shaft | 1 | SN: 50816-UP |
| 3 | 06004-00215 | Bearing | 1 | SN: 50816-UP |
| 5 | 6128-21-4190 | Ring,Dowel | 1 | SN: 50816-UP |
| 7 | 07000-05175 | O-Ring (K3) | 1 | SN: 50816-UP |
| 8 | 06000-06314 | Bearing,Ball | 1 | SN: 50816-UP |
| 9 | 01530-06814 | Nut | 1 | SN: 50816-UP |
| 10 | 01658-26823 | Washer (K3) | 1 | SN: 50816-UP |
| 12 | 07043-50108 | Plug | 1 | SN: 50816-UP |
| 13 | 07000-05165 | O-Ring (K3) | 1 | SN: 50816-UP |
| 14 | 01010-31030 | Bolt | 6 | SN: 50816-UP |
| 15 | 01602-01030 | Washer,Spring | 6 | SN: 50816-UP |
| 16 | 01641-21016 | Washer | 6 | SN: 50816-UP |
| 18 | 6128-21-4510 | Shaft | 1 | SN: 50816-UP |
| 19 | 01010-31020 | Bolt | 6 | SN: 50816-UP |
| 20 | 6127-21-4550 | Lock (K3) | 3 | SN: 50816-UP |
| 21 | 06000-06010 | Bearing,Ball | 2 | SN: 50816-UP |
| 22 | 6128-21-4540 | Collar | 1 | SN: 50816-UP |
| 26 | 07000-03110 | O-Ring (K3) | 1 | SN: 50816-UP |
| 27 | 01010-31240 | Bolt | 4 | SN: 50816-UP |
| 28 | 01602-01236 | Washer,Spring | 4 | SN: 50816-UP |
| 29 | 6128-21-4321 | Gear,Idle | 1 | SN: 50816-UP |
| 31 | 01010-31230 | Bolt | 6 | SN: 50816-UP |
| 32 | 01602-01236 | Washer,Spring | 6 | SN: 50816-UP |
| 33 | 06002-30217 | Bearing | 2 | SN: 50816-UP |
| 35 | 6128-21-4340 | Retainer | 1 | SN: 50816-UP |
| 36 | 6128-21-4600 | Shim Ass'Y | 1 | SN: 50816-UP |
| 36 | 6128-21-4610 | Shim¤ 1.0Mm | 4 | SN: 50816-UP |
| 36 | 6128-21-4620 | Shim¤ 0.5Mm | 2 | SN: 50816-UP |
| 36 | 6128-21-4630 | Shim¤ 0.1Mm | 1 | SN: 50816-UP |
| 38 | 6128-21-4360 | Lock (K3) | 1 | SN: 50816-UP |
SA6D155-4A — Gear Case And Cover
| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 04020-01434 | Pin,Dowel | 2 | SN: 50816-UP |
| 3 | 04020-00616 | Pin,Dowel | 2 | SN: 50816-UP |
| 8 | 01582-01008 | Nut | 6 | SN: 50816-UP |
| 9 | 01602-01030 | Washer,Spring | 6 | SN: 50816-UP |
| 10 | 6127-21-3160 | Grommet (K2) | 2 | SN: 50816-UP |
| 11 | 6128-21-3810 | Gasket (K2) | 1 | SN: 50816-UP |
| 12 | 01010-31650 | Bolt | 15 | SN: 50816-UP |
| 13 | 01602-01648 | Washer,Spring | 15 | SN: 50816-UP |
| 18 | 04020-00820 | Pin,Dowel | 1 | SN: 50816-UP |
| 23 | 6127-31-6221 | Bushing | 1 | SN: 50816-UP |
| 24 | 6127-31-6261 | Bearing,Thrust | 1 | SN: 50816-UP |
| 25 | 6128-21-3230 | Gasket (K2) | 1 | SN: 50816-UP |
| 26 | 01010-31475 | Bolt | 10 | SN: 50816-UP |
| 27 | 01010-31455 | Bolt | 4 | SN: 50816-UP |
| 28 | 01010-31480 | Bolt | 1 | SN: 50816-UP |
| 29 | 01602-01442 | Washer,Spring | 16 | SN: 50816-UP |
| 30 | 01641-21626 | Washer | 2 | SN: 50816-UP |
| 32 | 01580-01411 | Nut | 1 | SN: 50816-UP |
| 33 | 01602-01442 | Washer,Spring | 1 | SN: 50816-UP |
| 34 | 01641-21423 | Washer | 1 | SN: 50816-UP |
| 35 | 01011-31625 | Bolt | 2 | SN: 50816-UP |
| 36 | 01602-01648 | Washer,Spring | 2 | SN: 50816-UP |
| 38 | 01010-30612 | Bolt | 2 | SN: 50816-UP |
| 39 | 01602-00619 | Washer,Spring | 2 | SN: 50816-UP |
| 40 | 01642-20608 | Washer | 2 | SN: 50816-UP |
| 42 | 01010-31440 | Bolt | 2 | SN: 50816-UP |
| 43 | 01602-01442 | Washer,Spring | 2 | SN: 50816-UP |
| 44 | 6127-21-3510 | Seal¤ Front (K2) | 1 | SN: 50816-UP |
Shop the Komatsu SA6D155-4A Cylinder Block Parts collection
SA6D155-4A 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.
Related parent hubs
Featured parts in this hub
- Komatsu Engine Bearing Ball 06000-06010 — SKU KOM-06000-06010 | Bearing Ball
- Komatsu Engine Bearing Ball 06000-06314 — SKU KOM-06000-06314 | Bearing Ball
- Komatsu Engine Bearing Roller 06002-30217 — SKU KOM-06002-30217 | Bearing Roller
- Komatsu Engine Bearing Roller 06004-00215 — SKU KOM-06004-00215 | Bearing Roller
- Komatsu Engine Bolt 01010-30818 — SKU KOM-01010-30818 | Bolt
- Komatsu Engine Bolt 01010-31455 — SKU KOM-01010-31455 | Bolt
- Komatsu Engine Bolt 01010-31475 — SKU KOM-01010-31475 | Bolt
- Komatsu Engine Bolt 01010-31480 — SKU KOM-01010-31480 | Bolt
- Komatsu Engine Bolt 01010-31845 — SKU KOM-01010-31845 | Bolt
- Komatsu Engine Bolt 01010-31850 — SKU KOM-01010-31850 | Bolt
- Komatsu Engine Bolt 01010-31855 — SKU KOM- 1010-31855 | Bolt
- Komatsu Engine Bolt 01010-31870 — SKU KOM-01010-31870 | Bolt
- Komatsu Engine Bolt 01010-61440 — SKU KOM-01010-61440 | Product code 01010-31440 | Bolt
- Komatsu Engine Bolt 01010-61455 — SKU KOM-01010-61455 | Bolt
- Komatsu Engine Bolt 01010-61475 — SKU KOM-01010-61475 | Product code 01010-31475 | Bolt
- Komatsu Engine Bolt 01010-61480 — SKU KOM-01010-61480 | Product code 01010-31480 | Bolt
- Komatsu Engine Bolt 01010-61845 — SKU KOM-01010-61845 | Bolt
- Komatsu Engine Bolt 01010-61850 — SKU KOM-01010-61850 | Product code 01010-31850 | Bolt
- Komatsu Engine Bolt 01010-61855 — SKU KOM-01010-61855 | Product code 01010-31855 | Bolt
- Komatsu Engine Bolt 01010-61870 — SKU KOM-01010-61870 | Product code 01010-31870 | Bolt
- Komatsu Engine Bolt 01010-80818 — SKU KOM-01010-80818 | Product code 01010-30818 | Bolt
- Komatsu Engine Bolt 01010-E1225 — SKU KOM-01010-E1225 | Product code 01010-31225 | Bolt
- Komatsu Engine Bolt 01011-31625 — SKU KOM-01011-31625 | Bolt
- Komatsu Engine Bolt 01011-61625 — SKU KOM-01011-61625 | Product code 01011-31625 | Bolt
- Komatsu Engine Cap Oil Filler 6127-21-7401 — SKU KOM-6127-21-7401 | Cap Oil Filler
- Komatsu Engine Collar 6128-21-4540 — SKU KOM-6128-21-4540 | Collar
- Komatsu Engine Dowel Ring 6128-21-4190 — SKU KOM-6128-21-4190 | Dowel Ring
- Komatsu Engine Elbow Turbocharger Oil Inlet 07217-51013 — SKU KOM-07217-51013 | Elbow Turbocharger Oil Inlet
- Komatsu Engine Gasket 6127-21-4815 — SKU KOM-6127-21-4815 | Product code 6127-21-4813 | Gasket
- Komatsu Engine Gasket 6127-21-5550 — SKU KOM-6127-21-5550 | Gasket
This hub includes 74 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.