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SPM-HEP-5110 is the Bosch CP3 type common rail pump: a cast body with flat mounting face, a keyed drive shaft with nut, the metering unit with its plug and capped high pressure outlets. It is used on Weichai WP7 engines. 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 Bosch 0445020142 and Bosch 610800080072.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Fuel Injection Pump |
| Replaces | Bosch 0445020142 |
| Engine | Weichai WP7 7.5 L, 240 hp and 270 hp |
| Type | Common rail pump (Bosch CP3) |
| Cross references | Weichai 610800080072 |
| Fits | Weichai WP7 7.5 L engines (240 hp and 270 hp) in trucks and construction machines |
| Condition | New, aftermarket |
| Stat. HS-Code | 841330 |
| Country of Manufacture | China |
Machines
Check the part number on your old unit before ordering.
| Bosch Part No.(SPM Part No.) | Fits |
|---|---|
| 0445020142(SPM-HEP-5110) | Weichai WP7 7.5 L engines (240 hp and 270 hp) in trucks and construction machines |
| 610800080072(SPM-HEP-5110) | Weichai WP7 7.5 L engines (240 hp and 270 hp) in trucks and construction machines |
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 |
|---|---|---|
| eBay (4 aftermarket sellers) | USD 299.99 to 459.00 | 2 Nov 2026 |
| SINOCMP | USD 429.00 | 2 Nov 2026 |
| Spare Part Mart | USD 239.99 | Today |
Our price of USD 239.99 is 20% to 48% 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 Bosch 0445020142 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.
Clean them right back to metal and fit the new gasket or O-ring dry, unless the engine manual calls for sealant.
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 Bosch 0445020142. 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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