Komatsu SA6D140-1K-A Cylinder Block Parts Hub
Komatsu SA6D140-1K-A 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 SA6D140-1K-A 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.
SA6D140-1K-A — Cylinder Block Gasket Kit
| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 06122-04504 | Seal | 2 | SN: 11397-UP |
| 2 | 07000-02060 | O-Ring | 1 | SN: 11397-UP |
| 2 | 07000-02065 | O-Ring | 1 | SN: 11397-UP |
| 2 | 07000-03050 | O-Ring | 1 | SN: 11397-UP |
| 2 | 07000-62018 | O-Ring | 2 | SN: 11397-11827 |
| 2 | 07000-62060 | O-Ring | 1 | SN: 12455-UP |
| 2 | 07000-63025 | O-Ring | 2 | SN: 11397-17629 |
| 2 | 07000-63028 | O-Ring | 1 | SN: 11397-UP |
| 2 | 07000-63028 | O-Ring | 2 | SN: 11397-UP |
| 2 | 07000-63032 | O-Ring | 1 | SN: 11397-11827 |
| 2 | 07000-63032 | O-Ring | 1 | SN: 11397-UP |
| 2 | 07000-63032 | O-Ring | 2 | SN: 11397-UP |
| 2 | 07000-63032 | O-Ring | 2 | SN: 17630-UP |
| 2 | 07000-63038 | O-Ring | 1 | SN: 11397-UP |
| 2 | 07000-63040 | O-Ring | 1 | SN: 11397-UP |
| 2 | 07000-63042 | O-Ring | 1 | SN: 11397-UP |
| 2 | 07000-63048 | O-Ring | 1 | SN: 11397-UP |
| 2 | 07002-23634 | O-Ring | 1 | SN: 11397-11827 |
| 2 | 07005-00812 | Gasket | 1 | SN: 11397-12445 |
| 2 | 07005-01012 | Gasket | 1 | SN: 11397-UP |
| 2 | 07005-01212 | Gasket | 4 | SN: 11397-11827 |
| 2 | 07005-01412 | Gasket | 4 | SN: 17630-UP |
| 2 | 07005-01412 | Gasket | 2 | SN: 11397-17629 |
| 2 | 07005-01412 | Gasket | 1 | SN: 11397-11827 |
| 2 | 07005-01412 | Gasket | 4 | SN: 11397-UP |
| 2 | 07005-01412 | Gasket | 2 | SN: 11397-UP |
| 2 | 07005-01412 | Gasket | 8 | SN: 11397-UP |
| 2 | 07005-01412 | Gasket | 8 | SN: 11828-UP |
| 2 | 07005-01412 | Gasket | 12 | SN: 11397-11827 |
| 2 | 07005-01612 | Gasket | 1 | SN: 17630-UP |
| 2 | 07005-02216 | Gasket | 1 | SN: 11397-UP |
| 2 | 07011-00042 | Seal | 1 | SN: 11397-UP |
| 2 | 07012-00025 | Seal | 1 | SN: 11397-12445 |
| 2 | 07012-00028 | Seal | 1 | SN: 12446-UP |
| 2 | 08034-00414 | Band | 3 | SN: 11828-UP |
| 2 | 08034-00519 | Band | 3 | SN: 11828-UP |
| 2 | 142-06-14511 | Gasket | 1 | SN: 17630-UP |
| 2 | 6127-61-3790 | Lock | 1 | SN: 11397-UP |
| 2 | 6150-21-3230 | Seal¤ Front | 1 | SN: 11397-UP |
| 2 | 6150-21-6391 | Packing | 6 | SN: 17630-UP |
| 2 | 6150-21-6460 | O-Ring | 2 | SN: 11397-17629 |
| 2 | 6150-61-2520 | O-Ring | 4 | SN: 11397-12445 |
| 2 | 6150-61-2540 | Seal | 1 | SN: 11397-UP |
| 2 | 6151-21-4160 | Seal¤ Rear | 1 | SN: 11397-UP |
| 2 | 6210-21-1971 | Gasket | 1 | SN: 17630-UP |
| 2 | 6210-21-2230 | O-Ring | 6 | SN: 11397-UP |
| 2 | 6210-21-2240 | O-Ring | 6 | SN: 11397-UP |
| 2 | 6210-21-2250 | Seal | 6 | SN: 11397-UP |
| 2 | 6210-21-3251 | Gasket | 1 | SN: 17630-UP |
| 2 | 6210-21-5280 | Gasket | 1 | SN: 11397-11827 |
| 2 | 6210-21-5812 | Gasket | 1 | SN: 11397-11827 |
| 2 | 6210-21-5820 | Gasket | 1 | SN: 11828-UP |
| 2 | 6210-21-6452 | O-Ring | 1 | SN: 12455-UP |
| 2 | 6210-21-6462 | O-Ring | 1 | SN: 13268-UP |
| 2 | 6210-21-6860 | O-Ring | 2 | SN: 17630-UP |
| 2 | 6210-51-5580 | O-Ring | 1 | SN: 11397-11827 |
| 2 | 6210-61-2172 | Gasket | 2 | SN: 17630-UP |
| 2 | 6210-61-2520 | O-Ring | 2 | SN: 12446-UP |
| 2 | 6210-61-2550 | O-Ring | 1 | SN: 11397-UP |
| 2 | 6210-61-2811 | Gasket | 1 | SN: 17630-UP |
| 2 | 6210-61-6421 | Gasket | 1 | SN: 17630-UP |
| 2 | 6210-61-6441 | Gasket | 1 | SN: 17630-UP |
| 2 | 6210-61-6551 | Gasket | 1 | SN: 17630-UP |
| 2 | 6221-81-6810 | Gasket | 1 | SN: 17630-UP |
| 2 | 6696-61-9921 | Gasket | 1 | SN: 17630-UP |
| 2 | 6710-11-6451 | Seal | 2 | SN: 11397-UP |
| 2 | 702-16-11510 | Seal | 2 | SN: 11397-UP |
| 2 | The part and the part specified in the line immediately above are interchangeable.142-06-14510 | Gasket | 1 | SN: 11397-17629 |
| 2 | The part and the part specified in the line immediately above are interchangeable.6136-11-8142 | Packing | 6 | SN: 11397-12445 |
| 2 | The part and the part specified in the line immediately above are interchangeable.6210-21-3250 | Gasket | 1 | SN: 12455-17629 |
| 2 | The part and the part specified in the line immediately above are interchangeable.6210-21-6461 | O-Ring | 1 | SN: 11397-13267 |
| 2 | The part and the part specified in the line immediately above are interchangeable.6210-61-2170 | Gasket | 2 | SN: 11397-17629 |
| 2 | The part and the part specified in the line immediately above are interchangeable.6610-81-2210 | Gasket | 1 | SN: 11397-17629 |
| 2 | The part specified in the line above can be used instead of this part6150-21-6390 | Packing | 6 | SN: 12446-17629 |
| 2 | The part specified in the line above can be used instead of this part6210-21-1970 | Gasket | 1 | SN: 11397-17629 |
| 2 | The part specified in the line above can be used instead of this part6210-61-2810 | Gasket | 1 | SN: 11397-17629 |
| 2 | The part specified in the line above can be used instead of this part6210-61-6420 | Gasket | 1 | SN: 11397-17629 |
| 2 | The part specified in the line above can be used instead of this part6210-61-6440 | Gasket | 1 | SN: 12446-17629 |
| 2 | The part specified in the line above can be used instead of this part6210-61-6550 | Gasket | 1 | SN: 11397-17629 |
| 2 | The part specified in the line above can be used instead of this part6210-71-3181 | Seal | 1 | SN: 11397-17234 |
| 2 | The part specified in the line above can be used instead of this part6696-61-9920 | Gasket | 1 | SN: 11397-17629 |
| 2 | This shows a discontinued part. The part specified in the above line is supplied instead.6150-21-4250 | Seal¤ Rear | 1 | SN: (11397-17629) |
| 2 | This shows a discontinued part. The part specified in the above line is supplied instead.6210-21-6460 | O-Ring | 1 | SN: (11397-12445) |
SA6D140-1K-A — Cylinder Block
| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 04020-00820 | Pin,Dowel | 12 | SN: 11397-UP |
| 3 | 07043-70108 | Plug | 11 | SN: 11397-UP |
| 4 | 07046-42516 | Plug | 2 | SN: 11397-UP |
| 5 | 07046-41810 | Plug | 2 | SN: 11397-UP |
| 6 | 07046-11816 | Plug | 2 | SN: 11397-UP |
| 7 | 6210-21-1790 | Bushing | 2 | SN: 11397-UP |
| 10 | 6210-21-1490 | Bushing,Camshaft | 7 | SN: 11397-UP |
| 11 | 07046-47020 | Plug | 1 | SN: 11397-UP |
| 13 | 6210-81-9210 | Plug | 2 | SN: 11397-UP |
| 14 | 6150-21-4770 | Pin,Dowel | 2 | SN: 11397-UP |
| 16 | 04020-01024 | Pin,Dowel | 2 | SN: 11397-UP |
| 17 | 07043-00211 | Plug | 1 | SN: 17630-UP |
| 17 | 07043-00211 | Plug | 2 | SN: 11397-17629 |
| 18 | 07046-42010 | Plug | 1 | SN: 11397-UP |
| 19 | 07046-42816 | Plug | 2 | SN: 11397-UP |
| 20 | 07043-00415 | Plug | 1 | SN: 11397-UP |
| 22 | 07040-11007 | Plug | 1 | SN: 11397-UP |
| 23 | 07005-01012 | Gasket (K2) | 1 | SN: 11397-UP |
| 24 | 07040-11409 | Plug | 4 | SN: 17630-UP |
| 24 | 07040-11409 | Plug | 1 | SN: 11397-17629 |
| 25 | 07005-01412 | Gasket (K2) | 4 | SN: 17630-UP |
| 25 | 07005-01412 | Gasket (K2) | 1 | SN: 11397-17629 |
| 28 | 04020-00514 | Pin,Dowel | 2 | SN: 11397-UP |
| 29 | 6210-21-1390 | Pin | 6 | SN: 11397-UP |
| 31 | 01643-31845 | Washer | 14 | SN: 11397-UP |
| 32 | 6211-21-2220 | Liner,Cylinder | 6 | SN: 11397-UP |
| 33 | 6210-21-2250 | Seal,Crevice (K2) | 6 | SN: 11397-UP |
| 34 | 6210-21-2240 | O-Ring,Center (K2) | 6 | SN: 11397-UP |
| 35 | 6210-21-2230 | O-Ring,Lower (K2) | 6 | SN: 11397-UP |
| 36 | 6211-21-1820 | Nozzle,Piston Cooling | 6 | SN: 11397-UP |
| 39 | 01641-21016 | Washer | 6 | SN: 11397-UP |
| 41 | 07043-00415 | Plug | 1 | SN: 11397-UP |
| 42 | 7861-91-3320 | Sensor,Thermo | 1 | SN: 11983-UP |
| 42 | The part and the part specified in the line immediately above are interchangeable.7861-91-3310 | Sensor,Thermo | 1 | SN: 11397-11982 |
| 44 | 6210-21-1971 | Gasket (K2) | 1 | SN: 17630-UP |
| 44 | The part specified in the line above can be used instead of this part6210-21-1970 | Gasket (K2) | 1 | SN: 11397-17629 |
| 47 | 6696-61-9921 | Gasket (K2) | 1 | SN: 17630-UP |
| 47 | The part specified in the line above can be used instead of this part6696-61-9920 | Gasket (K2) | 1 | SN: 11397-17629 |
| 49 | 07040-11409 | Plug | 1 | SN: 11397-11827 |
| 50 | 07005-01412 | Gasket (K2) | 1 | SN: 11397-11827 |
| 51 | 08073-00505 | Switch | 1 | SN: 11397-UP |
SA6D140-1K-A — Piston And Connecting Rod
| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 1 | 6212-31-2151 | Piston | 6 | SN: 13772-UP |
| 1 | The part and the part specified in the line immediately above are interchangeable.6212-31-2110 | Piston | 6 | SN: 11397-13771 |
| 1 | This shows a discontinued part. The part specified in the above line is supplied instead.6210-31-2150 | Piston | 6 | SN: (13772-17064) |
| 2 | 6211-31-2410 | Pin,Piston | 6 | SN: 11397-UP |
| 3 | 04065-05220 | Ring,Snap | 12 | SN: 11397-UP |
| 4 | 6211-31-2033 | Piston Ring Ass'Y,Per Cylinder | 6 | SN: 11397-UP |
| 4 | This shows a discontinued part. The part specified in the above line is supplied instead.6211-31-2031 | Piston Ring Ass'Y,Per Cylinder | 6 | SN: (11397-16336) |
| 4 | This shows a discontinued part. The part specified in the above line is supplied instead.6211-31-2032 | Piston Ring Ass'Y,Per Cylinder | 6 | SN: (11397-17629) |
| 7 | 6211-31-3100 | Connecting Rod Ass'Y | 6 | SN: 11397-UP |
| 9 | 6211-31-3130 | Bushing | 1 | SN: 11397-UP |
| 10 | 02400-10413 | Pin,Dowel | 2 | SN: 11397-UP |
| 11 | 6210-31-3310 | Bolt | 2 | SN: 11397-UP |
| 12 | 6210-31-3041 | Metal Ass'Y | 6 | SN: 17630-UP |
| 12 | 6210-36-3041 | Metal Ass'Y | 6 | SN: 17630-UP |
| 12 | 6210-37-3041 | Metal Ass'Y | 6 | SN: 17630-UP |
| 12 | 6210-38-3041 | Metal Ass'Y | 6 | SN: 17630-UP |
| 12 | 6210-39-3041 | Metal Ass'Y | 6 | SN: 17630-UP |
| 12 | The part specified in the line above can be used instead of this part6210-31-3040 | Metal Ass'Y | 6 | SN: 11397-17629 |
| 12 | The part specified in the line above can be used instead of this part6210-36-3040 | Metal Ass'Y | 6 | SN: 11397-17629 |
| 12 | The part specified in the line above can be used instead of this part6210-37-3040 | Metal Ass'Y | 6 | SN: 11397-17629 |
| 12 | The part specified in the line above can be used instead of this part6210-38-3040 | Metal Ass'Y | 6 | SN: 11397-17629 |
| 12 | The part specified in the line above can be used instead of this part6210-39-3040 | Metal Ass'Y | 6 | SN: 11397-17629 |
SA6D140-1K-A — Front Cover And Front Bracket
| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 07046-11816 | Plug | 3 | SN: 11397-UP |
| 5 | 01010-51280 | Bolt | 1 | SN: 11397-UP |
| 7 | 01640-21223 | Washer | 5 | SN: 11397-UP |
| 9 | 01640-21016 | Washer | 3 | SN: 11397-UP |
| 13 | 01640-21016 | Washer | 2 | SN: 11397-UP |
| 20 | 01643-31032 | Washer | 1 | SN: 11397-UP |
| 23 | 07000-03050 | O-Ring (K2) | 1 | SN: 11397-UP |
| 24 | 01010-50616 | Bolt | 2 | SN: 11397-UP |
| 26 | 06030-06004 | Bearing,Ball | 2 | SN: 11397-12445 |
| 26 | 06030-06204 | Bearing,Ball | 2 | SN: 12446-UP |
| 27 | 04065-04218 | Ring,Snap | 1 | SN: 11397-12445 |
| 31 | 07012-00025 | Seal,Oil (K2) | 1 | SN: 11397-12445 |
| 31 | 07012-00028 | Seal,Oil (K2) | 1 | SN: 12446-UP |
| 33 | 07000-02060 | O-Ring (K2) | 1 | SN: 11397-UP |
| 37 | 01640-20610 | Washer | 2 | SN: 11397-UP |
| 38 | 6150-21-3230 | Seal¤ Front (K2) | 1 | SN: 11397-UP |
| 42 | 01640-21223 | Washer | 7 | SN: 11397-UP |
| 43 | 09920-00150 | Liquid Gasket,Lg-7¤ 150G | - | SN: 11397-14512 |
| 10A | 01640-21016 | Washer | 2 | SN: 17630-UP |
| 11A | 07000-62060 | O-Ring (K2) | 1 | SN: 14513-UP |
| 22A | 6130-82-5270 | Gasket | 1 | SN: 17630-UP |
| 24A | 01640-20610 | Washer | 2 | SN: 17630-UP |
| 3A | 6210-21-3251 | Gasket (K2) | 1 | SN: 17630-UP |
| 3A | The part and the part specified in the line immediately above are interchangeable.6210-21-3250 | Gasket (K2) | 1 | SN: 12455-17629 |
SA6D140-1K-A — Oil Pan(#11397-11982)
| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 07043-00211 | Plug | 1 | SN: 11397-11982 |
| 3 | 6210-21-5280 | Gasket | 1 | SN: 11828-11982 |
| 3 | 6210-21-5280 | Gasket (K2) | 1 | SN: 11397-11827 |
| 7 | 01640-21016 | Washer | 38 | SN: 11397-11982 |
| 9 | 6693-22-5600 | Valve Ass'Y | 1 | SN: 11397-@ |
| 11 | 07040-02412 | Plug | 1 | SN: 11397-@ |
| 12 | 04020-00514 | Pin,Dowel | 1 | SN: 11397-@ |
| 13 | 07000-63028 | O-Ring (K2) | 1 | SN: 11397-@ |
| 14 | 01010-31030 | Bolt | 2 | SN: 11397-@ |
| 15 | 01602-01030 | Washer,Spring | 2 | SN: 11397-11982 |
| 16 | 01640-01016 | Washer | 2 | SN: 11397-@ |
| 17 | 6210-21-5812 | Gasket | 1 | SN: 11828-11982 |
| 17 | 6210-21-5812 | Gasket (K2) | 1 | SN: 11397-11827 |
| 19 | 01640-21016 | Washer | 36 | SN: 11397-11982 |
| 27 | 07002-23634 | O-Ring | 1 | SN: 11828-11982 |
| 27 | 07002-23634 | O-Ring (K2) | 1 | SN: 11397-11827 |
| 28 | 01010-51075 | Bolt | 2 | SN: 11397-11982 |
| 31 | 07214-50813 | Connector | 2 | SN: 11397-11982 |
| 32 | 07206-30812 | Bolt,Joint | 2 | SN: 11397-11982 |
| 33 | 07005-01212 | Gasket | 4 | SN: 11828-11982 |
| 33 | 07005-01212 | Gasket (K2) | 4 | SN: 11397-11827 |
SA6D140-1K-A — Crankshaft(#11397-17791)
| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 1 | 6211-31-1010 | Crankshaft Ass'Y | 1 | SN: 11397-@ |
| 7 | 04020-01024 | Pin,Dowel | 1 | SN: 11397-@ |
| 8 | The part specified in the DESCRIPTION column can be used instead of this part if it is used as a set.01435-01025 | Bolt | 6 | SN: 11397-11982 |
| 10 | 6210-21-8000 | Metal Ass'Y | 1 | SN: 11397-@ |
| 10 | 6210-21-8010 | Main Metal Ass'Y | 7 | SN: 11397-@ |
| 10 | 6210-26-8010 | Main Metal Ass'Y | 7 | SN: 11397-@ |
| 10 | 6210-27-8010 | Main Metal Ass'Y | 7 | SN: 11397-@ |
| 10 | 6210-28-8010 | Main Metal Ass'Y | 7 | SN: 11397-@ |
| 10 | 6210-29-8010 | Main Metal Ass'Y | 7 | SN: 11397-@ |
| 12 | 6210-21-8050 | Thrust Metal Ass'Y | 1 | SN: 11397-@ |
| 12 | 6210-28-8050 | Thrust Metal Ass'Y | 1 | SN: 11397-@ |
| 12 | 6210-29-8050 | 1 | SN: 11397-@ | |
| 8A | 01643-31032 | Washer | 6 | SN: 11983-17791 |
Shop the Komatsu SA6D140-1K-A Cylinder Block Parts collection
SA6D140-1K-A 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 06030-06204 — SKU KOM-06030-06204 | Bearing Ball
- Komatsu Engine Bolt 01010-50612 — SKU KOM-01010-50612 | Bolt
- Komatsu Engine Bolt 01010-50616 — SKU KOM-01010-50616 | Bolt
- Komatsu Engine Bolt 01010-51280 — SKU KOM-01010-51280 | Bolt
- Komatsu Engine Bushing 6210-31-6121 — SKU KOM-6210-31-6121 | Bushing
- Komatsu Engine Bushing 6210-31-6131 — SKU KOM-6210-31-6131 | Bushing
- Komatsu Engine Bushing 6212-31-6120 — SKU KOM-6212-31-6120 | Bushing
- Komatsu Engine Crankshaft Ass' 6211-31-1010 — SKU KOM-6211-31-1010 | Crankshaft Ass'
- Komatsu Engine Gasket 6210-21-3251 — SKU KOM-6210-21-3251 | Gasket
- Komatsu Engine Gasket Oil Pan 6210-21-5812 — SKU KOM-6210-21-5812 | Gasket Oil Pan
- Komatsu Engine Gasket Oil Pan Frame 6210-21-5280 — SKU KOM-6210-21-5280 | Gasket Oil Pan Frame
- Komatsu Engine Liner Cylinder 6211-21-2220 — SKU KOM-6211-21-2220 | Product code 6211-22-2220 | Liner Cylinder
- Komatsu Engine Metal Ass'Y 6210-31-3041 — SKU KOM-6210-31-3041 | Metal Ass'Y
- Komatsu Engine Metal Ass'Y 6210-36-3041 — SKU KOM-6210-36-3041 | Metal Ass'Y
- Komatsu Engine Metal Ass'Y 6210-37-3041 — SKU KOM-6210-37-3041 | Metal Ass'Y
- Komatsu Engine Metal Ass'Y 6210-38-3041 — SKU KOM-6210-38-3041 | Product code 6210-38-3040 | Metal Ass'Y
- Komatsu Engine Metal Ass'Y 6210-39-3041 — SKU KOM-6210-39-3041 | Product code 6210-39-3040 | Metal Ass'Y
- Komatsu Engine Piston 6212-31-2151 — SKU KOM-6212-31-2151 | Piston
- Komatsu Engine Piston Ring Ass'Y Per Cylinder 6211-31-2033 — SKU KOM-6211-31-2033 | Product code 6211-31-2030 | Piston Ring Ass'Y Per Cylinder
- Komatsu Engine Ring Snap 04065-04218 — SKU KOM-04065-04218 | Ring Snap
- Komatsu Engine Seal Oil 07012-00025 — SKU KOM-07012-00025 | Seal Oil
- Komatsu Engine Seal Oil 07012-00028 — SKU KOM-07012-00028 | Seal Oil
- Komatsu Engine Seal¤ Rear 6150-21-4250 — SKU KOM-6150-21-4250 | Product code 6151-21-4160 | Seal¤ Rear
- Komatsu Engine Sensor Engine Revolution 7819-11-2310 — SKU KOM-7819-11-2310 | Sensor Engine Revolution
- Komatsu Engine Sensor Oil Level 7861-91-4210 — SKU KOM-7861-91-4210 | Sensor Oil Level
- Komatsu Engine Sensor Water Temp 7861-91-3320 — SKU KOM-7861-91-3320 | Product code 7861-91-3310 | Sensor Water Temp
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.