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Cummins 3045281 is the Cummins PT type fuel pump: cast aluminium pump body with the drive flange and coupling, the gear pump section, a red fuel shutoff solenoid valve, throttle shaft and governor housing, with safety wired cover screws. It is used on Cummins NTA855-M engines. This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | PT Fuel Pump |
| Replaces | Cummins 3045281 |
| Engine | Cummins NTA855-M (marine) |
| Type | PT fuel pump |
| Fits | Cummins NTA855-M marine engines |
| Condition | New, aftermarket |
| Stat. HS-Code | 841330 |
| Country of Manufacture | China |
Cummins machines
Check the part number on your old unit before ordering.
| Cummins Part No.(SPM Part No.) | Fits |
|---|---|
| 3045281(SPM-HEP-5125) | Cummins NTA855-M marine engines |
Hard starting and low power
A worn injection pump delivers less fuel at lower pressure: long cranking and weak power under load.
Smoke and uneven running
Uneven delivery between cylinders shows as smoke and rough running.
Fuel leaks
Leaks from the pump body or shaft seal mean it is time to replace it.
Fitting tips
Set the pump timing to the engine maker's figure, bleed the fuel system, and use clean fuel and new filters.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| SINOCMP | USD 1,299.00 | 2 Nov 2026 |
| eBay (4 aftermarket sellers) | USD 1,349.99 to 1,549.99 | 2 Nov 2026 |
| Spare Part Mart | USD 1,039.20 | Today |
Our price of USD 1,039.20 is 20% to 33% 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 Cummins 3045281 with the same fitting.
Often 5,000 to 10,000 hours with clean fluid, much less with dirt or air in the system. It is usually changed on condition, not by hours.
Leaks from the seal or weep hole, noise or whining, overheating, or falling pressure or flow under load.
Most failures come from contamination, cavitation from a restricted inlet, or running low on fluid. Check the inlet and the fluid before fitting the new fuel injection pump.
Yes. Fill the pump and its suction line with clean fluid before the first start. Running it dry, even for a few seconds, can score it.
No. It is an aftermarket fuel injection pump made to replace the Cummins 3045281. 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.
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