Caterpillar original Fuel Injector 20R-8048 Replacement for OEM 365-8156, Cross Reference 10R-8988, Fits C18 Engine for Excavator Truck Auto Parts with 618-0750 original new injector

The CAT 20R-8048 fuel injector is a purpose-built diesel injection component engineered exclusively for Caterpillar C18 engine platforms operating in harsh heavy-duty environments. It is compatible with all C18 variants, including industrial, marine, generator, petroleum, offshore, ACERT and power unit models, and fits seamlessly into engine cylinder heads to support reliable daily operation. As an OEM-spec part, it is validated for power generation, marine propulsion, mining, construction, oil and gas, and industrial compressor applications.

Built to meet strict Caterpillar performance standards, the 20R-8048 features micron-level tolerances, a precision multi-hole nozzle, hardened alloy steel internals and specialized corrosion-resistant coatings. Its electronically controlled high-pressure injection delivers exact fuel metering and optimal atomization, improving combustion efficiency, boosting fuel economy, reducing emissions, and supporting consistent power output even under extreme temperatures, high pressures and extended duty cycles. Wear-resistant parts also enable a long service life in severe industrial conditions.

Each injector ships in industrial export packaging with a 12-month supplier-dependent warranty. Prior to installation, technicians must verify the part number, clean the injector bore and replace sealing washers per Caterpillar guidelines; routine use of clean diesel and regular fuel filter replacement extends service life. Confirm compatibility against the engine serial number before purchase, and diagnose faults via injector balance testing, fuel pressure testing and ECM diagnostics.