No Products in the Cart
SPM-HEP-4877 is the Bosch type electronic common rail injector with a top two stud terminal, a polished steel body with O rings and a slim nozzle. It is used on Komatsu SAA6D107E engines (PC200-8, D51EX, WA380). This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
It replaces Komatsu 6754-11-3100 and Komatsu 6754-11-3011.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Common Rail Fuel Injector |
| Replaces | Komatsu 6754-11-3100 |
| Injector type | Electronic common rail |
| Engine | Komatsu SAA6D107E |
| Machine | Komatsu PC200-8, D51EX, D51PX, WA380 |
| Cross references | Komatsu 6754-11-3011 |
| Fits | the Komatsu SAA6D107E diesel engine in PC200-8 excavators, D51EX and D51PX dozers and WA380 wheel loaders |
| Condition | New, aftermarket |
| Stat. HS-Code | 840999 |
| Country of Manufacture | China |
Machines
Check the part number on your old unit before ordering.
| Komatsu Part No.(SPM Part No.) | Fits |
|---|---|
| 6754-11-3100 / Komatsu 6754-11-3011(SPM-HEP-4877) | the Komatsu SAA6D107E diesel engine in PC200-8 excavators, D51EX and D51PX dozers and WA380 wheel loaders |
| Brand | Part No. |
|---|---|
| Komatsu | 6754-11-3100 |
| Komatsu | 6754-11-3011 |
All of these numbers are the same part.
What it does
A common rail injector opens electrically several times per combustion stroke, spraying fuel at very high pressure. Its timing and flow are set by the engine controller using the trim code on its body.
Where it is used
Made for the Komatsu SAA6D107E diesel engine in PC200-8 excavators, D51EX, D51PX dozers and WA380 wheel loaders. The full list is in the tables above.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay (6 aftermarket sellers) | USD 88.90 to 110.00 | 1 Nov 2026 |
| VEP Diesel | USD 119.00 | 1 Nov 2026 |
| Fab Heavy | USD 145.59 | 1 Nov 2026 |
| SINOCMP | USD 149.00 | 1 Nov 2026 |
| MyMROmarts | USD 162.64 | 1 Nov 2026 |
| Spare Part Mart | USD 76.79 | Today |
Our price of USD 76.79 is 14% to 53% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Yes, it is a direct replacement for the Komatsu 6754-11-3100 with the same fitting.
Often 5,000 to 10,000 hours, but much less on poor or wet fuel. Injectors are usually changed when they fail a test, not by hours.
Black or white smoke, a misfire or knock on one cylinder, hard starting, higher fuel use, or a high return leak or balance rate on test.
Most common rail injectors carry a trim code (QR or IMA) printed on the body. Enter it with a diagnostic tool after fitting, or the engine runs rough and smokes.
Always. Fit a new copper washer and O-rings under every injector you remove. A reused washer leaks combustion gas and carbon packs the bore.
No. It is an aftermarket fuel injector made to replace the Komatsu 6754-11-3100. It is not made by the original manufacturer; the number only shows what it replaces.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
Join and we put 200 points on your account, worth $10 off an order over $75 USD. Then a point for every dollar you spend after that. Turn points into a discount whenever you like.
Opens the Marty Mates panel. No password: you enter your email, we send a code, and that is you in with your 200 points waiting. Joining signs you up to our emails and you can leave any time from the link in any of them. See our terms and conditions.
Member deals, specials before they go public, and easy ways to stack up points. Plus a nudge when a part you bought is due, so you are not caught out mid job.
You can leave any time from the link in any email we send. See our terms and conditions.
We will only bother you when it is worth it: a member deal, a specials drop, a way to earn points faster, or a heads up that a part you bought is due.
Join Marty Mates and we put 200 points on your account, worth $10 off an order over $75 USD. Then a point for every dollar you spend after that.
No password: you enter your email, we send a code, and that is you in.
