254-4357: Caterpillar HEUI Actuating Pump 254-4357 | High Pressure Oil Pump for CAT C7 – Fits 324D 325D 330D

254-4357: Caterpillar HEUI Actuating Pump 254-4357 | High Pressure Oil Pump for CAT C7 – Fits 324D 325D 330D

This HEUI high-pressure oil pump (actuating pump) is a high-quality aftermarket replacement for Caterpillar C7 HEUI fuel injection systems, covering 2004–2009 C7 truck applications. It replaces OE part number 254-4357, cross-referenced to 304-0677, 295-4777, 228-5898 and the remanufactured number 10R-8899. The pump builds and maintains the high oil pressure required to actuate HEUI unit injectors, delivering precise injection timing and metering for reliable starting, stable idle and full rated power. Hardened pumping gears and precision-machined housing stand up to sustained high-pressure operation, with OEM-spec mounting and sealing surfaces for a leak-free, bolt-on fit. Every unit is bench-tested for pressure and flow before shipment. Fits Caterpillar hydraulic excavators (324D, 325D, 330D, 328D LCR, M325D MH) and C7 truck engines. Export-packed, 12-month warranty and responsive technical support. Aftermarket replacement part — not a genuine Caterpillar product. "Caterpillar" and "CAT" are trademarks of their respective owners, used for reference only.

We are a professional manufacturing factory dedicated to diesel engine spare parts. Our core product line covers diesel fuel injectors, injector nozzles, fuel injection pumps and complete injector repair kits. Backed by steady in-house stock, rigorous quality inspection and direct factory pricing, we partner with global wholesalers, maintenance workshops and machinery enterprises. We deliver premium reliable spare parts, fast lead time and all-round one-stop export service. We warmly welcome your inquiries and long-term business cooperation. 

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