Caterpillar original For Caterpillar C7 C9 Fuel Injector 10R-7225 20R-8066 diesel Injector Pump 263-8218 for Excavator E320D E324D E325D E329D E330D 557-7627 original new injector

The Caterpillar (CAT) 10R-7225 is a precision-built Electronic Unit Injector (EUI) purpose-engineered as an OEM-spec replacement for CAT C7 series diesel engines, covering C7 ACERT, industrial, truck, generator and marine engine variants. Manufactured strictly to OEM specifications with high-strength alloy steel, it features an OEM-calibrated flow rate and precise fit for dependable service in heavy-duty diesel fuel systems.

Paired with the engine’s electronically controlled fuel injection system, the 10R-7225 uses ECM-governed injection timing and solenoid actuation to deliver finely atomized high-pressure fuel directly to combustion chambers. This optimized combustion reduces fuel consumption, cuts exhaust emissions and black smoke, sharpens throttle response, stabilizes cold-start performance, boosts usable horsepower, and extends long-term engine service life, supported by a corrosion-resistant, heavy-duty internal structure with low failure rates and high thermal stability for reliable operation under demanding industrial conditions.

Compatible with a full range of CAT equipment including excavators, wheel loaders, motor graders, on-highway trucks, generator sets, industrial power units and marine applications, it serves core sectors including construction, mining, transportation, power generation, agricultural equipment, oil and gas, and marine operations. Backed by a 12-month warranty, it has a 1-piece MOQ and supports worldwide export to meet diverse B2B heavy equipment replacement parts demands.