Caterpillar original Rail Fuel Injector 20R-8427 10R-2828, Cross Reference 20R-1917, Replacement for OEM 20R-1959, for Caterpillar C9 Diesel Engine Excavator original new injector

The Caterpillar 10R-2828 fuel injector is a precision-engineered electronic diesel injector developed for CAT C9 and C9 ACERT engine platforms. Designed in accordance with OEM specifications, it delivers highly accurate fuel metering and optimized spray-pattern atomization, supporting superior combustion efficiency, lower emissions, improved fuel economy, and extended service life under severe-duty operating environments. Cross-reference numbers include 249-0713, 2490713, 328-2574, 3282574, and 10R-2828R, covering common OEM, dealer, and aftermarket listings.

Operating through Caterpillar's Electronic Unit Injection (EUI) system, the injector receives command signals from the engine ECM, which calculates engine load, speed, intake pressure, coolant temperature, and fuel demand before actuating the injector solenoid. The internal plunger then generates extremely high fuel pressure, and the precision nozzle atomizes fuel into microscopic droplets for optimized combustion. Industrial-grade construction features precision-ground internal components, high-temperature resistance, and anti-corrosion materials, ensuring OEM-level fuel flow matching, consistent power output, reduced smoke, improved cold starts, and factory-tested reliability.

This injector is widely installed across Caterpillar equipment powered by C9 series engines, including 330D, 330D L, 336D, and 336D L excavators, as well as wheel loaders, motor graders, generator sets, marine propulsion engines, mining machinery, oilfield equipment, and industrial power units. To ensure correct fitment, buyers should verify the Engine Serial Number (ESN), Arrangement Number, and equipment serial number before ordering. For maximum injector service life, use high-quality diesel fuel, replace fuel filters regularly, and maintain fuel system cleanliness.