Komatsu SAA6D125E-5-FR Fuel System Parts Hub
Komatsu SAA6D125E-5-FR Fuel System 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 SAA6D125E-5-FR Fuel System 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.
SAA6D125E-5-FR — 2) (#660001-)

| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 01435-01030 | Bolt | 2 | SN: 660001-UP |
| 11 | 07206-30710 | Bolt, Joint | 1 | SN: 660001-UP |
| 12 | 07005-01012 | Seal, Washer | 2 | SN: 660001-UP, KIT-FLAG: S |
| 14 | 01435-01020 | Bolt | 1 | SN: 660001-UP |
| 15 | 01643-31032 | Washer | 1 | SN: 660001-UP |
| 16 | 6251-71-5110 | Tube, Fuel Supply, No.1 | 1 | SN: 660001-660001, SCC: B1 |
| 16 | 6251-71-5111 | Tube | 1 | SN: 660001-660139, SCC: A2 |
| 16 | 6251-71-5112 | Tube | 1 | SN: 660140-UP |
| 17 | 6251-71-5120 | Tube, Fuel Supply, No.2 | 1 | SN: 660001-660001, SCC: B1 |
| 17 | 6251-71-5121 | Tube | 1 | SN: 660001-660139, SCC: A2 |
| 17 | 6251-71-5122 | Tube | 1 | SN: 660140-UP |
| 18 | 6251-71-5130 | Tube, Fuel Supply, No.3 | 1 | SN: 660001-660001, SCC: B1 |
| 18 | 6251-71-5131 | Tube | 1 | SN: 660001-660139, SCC: A2 |
| 18 | 6251-71-5132 | Tube | 1 | SN: 660140-UP |
| 19 | 6251-71-5140 | Tube, Fuel Supply, No.4 | 1 | SN: 660001-660001, SCC: B1 |
| 19 | 6251-71-5141 | Tube | 1 | SN: 660001-660139, SCC: A2 |
| 19 | 6251-71-5142 | Tube | 1 | SN: 660140-UP |
| 20 | 6251-71-5150 | Tube, Fuel Supply, No.5 | 1 | SN: 660001-660001, SCC: B1 |
| 20 | 6251-71-5151 | Tube | 1 | SN: 660001-660139, SCC: A2 |
| 20 | 6251-71-5152 | Tube | 1 | SN: 660140-UP |
| 21 | 6251-71-5160 | Tube, Fuel Supply, No.6 | 1 | SN: 660001-660001, SCC: B1 |
| 21 | 6251-71-5161 | Tube | 1 | SN: 660001-660139, SCC: A2 |
| 21 | 6251-71-5162 | Tube | 1 | SN: 660140-UP |
| 26 | 01435-00635 | Bolt | 7 | SN: 660001-UP |
| 31 | 01435-01020 | Bolt | 2 | SN: 660001-UP |
| 33 | 01435-01025 | Bolt | 1 | SN: 660001-UP |
SAA6D125E-5-FR — 2) (#660139-)

| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 7 | 07040-11209 | Plug | 1 | SN: 660139-UP |
| 8 | 07005-01212 | Seal, Washer | 1 | SN: 660139-UP, KIT-FLAG: S |
| 10 | 07005-00812 | Seal, Washer | 1 | SN: 660139-UP, KIT-FLAG: S |
| 11 | 01435-01030 | Bolt | 2 | SN: 660139-UP |
| 13 | 600-319-4500 | Cartridge Assembly | 1 | SN: 660139-UP |
| 14 | 600-311-3220 | Cap | 1 | SN: 660139-UP |
| 15 | 600-311-3230 | Seal | 1 | SN: 660139-UP |
| 22 | 6251-51-9910 | O-Ring | 2 | SN: 660139-UP, KIT-FLAG: S |
| 23 | 02896-11009 | O-Ring | 2 | SN: 660139-UP, KIT-FLAG: S |
| 25 | 07002-12034 | O-Ring | 1 | SN: 660139-UP, KIT-FLAG: S |
| 29 | 07002-12034 | O-Ring | 2 | SN: 660139-UP, KIT-FLAG: S |
| 30 | 02896-11015 | O-Ring | 2 | SN: 660139-UP, KIT-FLAG: S |
| 32 | 01435-01020 | Bolt | 1 | SN: 660139-UP |
| 36 | 07095-20523 | Cushion | 2 | SN: 660139-UP |
| 37 | 01435-01020 | Bolt | 2 | SN: 660139-UP |
| 38 | 01584-01008 | Nut | 2 | SN: 660139-UP |
| 41 | 07002-12034 | O-Ring | 1 | SN: 660139-UP, KIT-FLAG: S |
| 42 | 02896-11012 | O-Ring | 1 | SN: 660139-UP, KIT-FLAG: S |
| 43 | 04434-52511 | Clip | 1 | SN: 660139-UP |
| 47 | 01584-01008 | Nut | 1 | SN: 660139-UP |
| 49 | 01435-01020 | Bolt | 1 | SN: 660139-UP |
| 51 | 01435-01025 | Bolt | 1 | SN: 660139-UP |
| 52 | 01584-01008 | Nut | 1 | SN: 660139-UP |
| 53 | 01643-31032 | Washer | 1 | SN: 660139-UP |
SAA6D125E-5-FR — Fuel Return (#660001-)

| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 6215-11-6560 | Bolt, Joint | 1 | SN: 660001-UP |
| 3 | 07005-01012 | Seal, Washer | 2 | SN: 660001-UP, KIT-FLAG: S |
| 5 | 07005-01412 | Seal, Washer | 2 | SN: 660001-UP |
| 7 | 01435-01030 | Bolt | 2 | SN: 660001-UP |
| 8 | 6216-84-9740 | Seal | 1 | SN: 660010-UP, KIT-FLAG: S |
| 8 | 6261-81-6900 | Sensor Assembly | 1 | SN: 660001-660009 |
| 8 | 6261-81-6901 | Sensor Assembly | 1 | SN: 660010-UP |
| 8 | 6261-81-6910 | Sensor, Temperature | 1 | SN: 660001-660009 |
| 8 | 6261-84-9740 | O-Ring | 1 | SN: 660001-660009, KIT-FLAG: S |
| 10 | 01435-01030 | Bolt | 1 | SN: 660001-UP |
| 11 | 01643-31032 | Washer | 2 | SN: 660001-UP |
| 13 | 6251-51-9910 | O-Ring | 1 | SN: 660001-UP, KIT-FLAG: S |
SAA6D125E-5-FR — Fuel Filter, Piping (#660001-660138)

| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 2 | 07043-70108 | Plug | 1 | SN: 660001-660138 |
| 15 | 07040-11209 | Plug | 1 | SN: 660001-660138 |
| 16 | 07005-01212 | Seal, Washer | 1 | SN: 660001-660138, KIT-FLAG: S |
| 17 | 01435-01030 | Bolt | 2 | SN: 660001-660138 |
| 22 | 07005-01412 | Seal, Washer | 2 | SN: 660001-660138 |
| 26 | 04020-00616 | Pin, Dowel | 1 | SN: 660001-660138 |
| 30 | 07005-01412 | Seal, Washer | 5 | SN: 660001-660138 |
| 33 | 07005-01412 | Seal, Washer | 4 | SN: 660001-660138 |
| 37 | 01435-01025 | Bolt | 1 | SN: 660001-660138 |
| 38 | 01584-01008 | Nut | 1 | SN: 660001-660138 |
| 39 | 01643-31032 | Washer | 1 | SN: 660001-660138 |
| 43 | 07005-01412 | Seal, Washer | 3 | SN: 660001-660138 |
| 45 | 01435-01025 | Bolt | 1 | SN: 660001-660138 |
| 47 | 01435-01020 | Bolt | 1 | SN: 660001-660138 |
| 52 | 01435-01030 | Bolt | 1 | SN: 660001-660138 |
| 54 | 01435-01025 | Bolt | 1 | SN: 660001-660138 |
| 55 | 01584-01008 | Nut | 1 | SN: 660001-660138 |
| 56 | 01643-31032 | Washer | 1 | SN: 660001-660138 |
| 62 | 01584-01008 | Nut | 1 | SN: 660001-660138 |
| 63 | 01643-31032 | Washer | 1 | SN: 660001-660138 |
SAA6D125E-5-FR — Fuel Filter, Priming Pump (#660001-660138)

| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 1 | 6210-21-1390 | Pin | 2 | SN: 660001-660138 |
| 2 | 01435-01025 | Bolt | 4 | SN: 660001-660138 |
| 11 | 07002-12034 | O-Ring | 1 | SN: 660001-660138, KIT-FLAG: S |
| 12 | 07040-12012 | Plug | 1 | SN: 660001-660138 |
| 13 | 07002-12034 | O-Ring | 1 | SN: 660001-660138, KIT-FLAG: S |
| 16 | 07002-12034 | O-Ring | 1 | SN: 660001-660138, KIT-FLAG: S |
| 17 | 07206-30812 | Bolt, Joint | 2 | SN: 660001-660138 |
| 18 | 07005-01212 | Seal, Washer | 4 | SN: 660001-660138, KIT-FLAG: S |
| 20 | 07206-30812 | Bolt, Joint | 1 | SN: 660001-660138 |
| 21 | 07005-01212 | Seal, Washer | 2 | SN: 660001-660138, KIT-FLAG: S |
| 24 | 07002-12034 | O-Ring | 1 | SN: 660001-660138, KIT-FLAG: S |
| 25 | 02896-11012 | O-Ring | 1 | SN: 660001-660138, KIT-FLAG: S |
| 28 | 07005-01412 | Seal, Washer | 3 | SN: 660001-660138 |
| 30 | 07005-01412 | Seal, Washer | 1 | SN: 660001-660138 |
| 39 | 01435-01020 | Bolt | 1 | SN: 660001-660138 |
| 40 | 01643-31032 | Washer | 1 | SN: 660001-660138 |
SAA6D125E-5-FR — Fuel Injector (#660001-)

| Diagram Ref. | Part Number | Description | Qty | Serial / Option Notes |
|---|---|---|---|---|
| 1 | 6251-11-3100 | Injector Assembly | 6 | SN: 660001-UP |
| 2 | 6217-71-6112 | Gasket | 6 | SN: 660001-UP, KIT-FLAG: S |
| 3 | 6219-71-1150 | O-Ring | 12 | SN: 660001-UP, KIT-FLAG: S |
| 4 | 6219-71-1160 | O-Ring | 6 | SN: 660001-UP, KIT-FLAG: S |
| 9 | 6934-72-7190 | Bolt, Joint | 5 | SN: 660001-UP |
| 10 | 07005-01012 | Seal, Washer | 11 | SN: 660001-UP, KIT-FLAG: S |
| 12 | 07000-E3024 | O-Ring | 6 | SN: 660001-UP, KIT-FLAG: S |
| 14 | 01640-20610 | Washer | 6 | SN: 660001-UP |
Shop the Komatsu SAA6D125E-5-FR Fuel System Parts collection
SAA6D125E-5-FR Fuel System Parts lookup notes
Use this hub when the repair has already been narrowed to fuel system 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 Joint 6245-71-5960 — SKU KOM-6245-71-5960 | Bolt Joint
- Komatsu Engine Bolt Joint 6934-72-7190 — SKU KOM-6934-72-7190 | Bolt Joint
- Komatsu Engine Cap 600-311-3220 — SKU KOM-600-311-3220 | Cap
- Komatsu Engine Cartridge 600-311-3841 — SKU KOM-600-311-3841 | Cartridge
- Komatsu Engine Cartridge Assembly Pre Filter 600-319-4500 — SKU KOM-600-319-4500 | Cartridge Assembly Pre Filter
- Komatsu Engine Cartridge Fuel Filter 600-319-3550 — SKU KOM-600-319-3550 | Cartridge Fuel Filter
- Komatsu Engine Cartridge Fuel Filter 600-319-3841 — SKU KOM-600-319-3841 | Cartridge Fuel Filter
- Komatsu Engine Common Rail Ass'Y 6261-71-1220 — SKU KOM-6261-71-1220 | Common Rail Ass'Y
- Komatsu Engine Common Rail Assembly Common 6261-71-1210 — SKU KOM-6261-71-1210 | Product code 6261-71-1220 | Common Rail Assembly Common
- Komatsu Engine Cushion 07095-20523 — SKU KOM-07095-20523 | Cushion
- Komatsu Engine Filter Assembly 600-311-4500 — SKU KOM-600-311-4500 | Filter Assembly
- Komatsu Engine Fuel Pump Ass'Y 6251-71-1120 — SKU KOM-6251-71-1120 | Fuel Pump Ass'Y
- Komatsu Engine Gasket 6217-71-6112 — SKU KOM-6217-71-6112 | Product code 6217-71-6110 | Gasket
- Komatsu Engine Gasket 6219-71-1150 — SKU KOM-6219-71-1150 | Gasket
- Komatsu Engine Gasket 6219-71-1160 — SKU KOM-6219-71-1160 | Gasket
- Komatsu Engine Injector Assembly 6251-11-3100 — SKU KOM-6251-11-3100 | Injector Assembly
- Komatsu Engine O-Ring 02896-11009 — SKU KOM-02896-11009 | O-Ring
- Komatsu Engine O-Ring 02896-11012 — SKU KOM-02896-11012 | O-Ring
- Komatsu Engine O-Ring 02896-11015 — SKU KOM-02896-11015 | O-Ring
- Komatsu Engine O-Ring 07000-E3024 — SKU KOM-07000-E3024 | O-Ring
- Komatsu Engine O-Ring 07002-12034 — SKU KOM-07002-12034 | O-Ring
- Komatsu Engine O-Ring 6251-51-9910 — SKU KOM-6251-51-9910 | O-Ring
- Komatsu Engine O-Ring 6261-84-9740 — SKU KOM-6261-84-9740 | Product code 6216-84-9740 | O-Ring
- Komatsu Engine O-Ring ND094086-0210 — SKU KOM-ND094086-0210 | Product code Nd094086-0210 | O-Ring
- Komatsu Engine Pin Dowel 04020-00616 — SKU KOM-04020-00616 | Pin Dowel
- Komatsu Engine Pump Assembly Fuel Injection Fuel 6251-71-1121 — SKU KOM-6251-71-1121 | Product code 6251-71-1120 | Pump Assembly Fuel Injection Fuel
- Komatsu Engine Pump Fuel Priming ND092130-0360 — SKU KOM-ND092130-0360 | Product code Nd092130-0360 | Pump Fuel Priming
- Komatsu Engine Seal 600-311-3230 — SKU KOM-600-311-3230 | Seal
- Komatsu Engine Sensor Ass'Y Water Temperature 6261-81-6900 — SKU KOM-6261-81-6900 | Product code 6216-84-9140 | Sensor Ass'Y Water Temperature
- Komatsu Engine Sensor Assembly Fuel Pressure ND499000-6160 — SKU KOM-ND499000-6160 | Product code Nd499000-6160 | Sensor Assembly Fuel Pressure
This hub includes 49 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.