Perkins original Perkins 20R-1917 Reman Fuel Injector 235-5261 242-0857 254-4330 for C9 330D 340D 336D Excavator new injector original new injector

The Perkins Fuel Injector 20R-1917 is an OEM-level replacement component designed for Perkins C9 and C9 ACERT diesel engines deployed across excavators, wheel loaders, generator sets, marine engines, and heavy industrial platforms. Manufactured from precision hardened alloy steel and calibrated to factory specifications, this injector delivers high precision fuel metering with enhanced atomization for more complete combustion. The assembly is engineered as a direct equivalent to original Perkins equipment, ensuring correct fitment without modification across construction, mining, power generation, and marine propulsion applications in markets throughout North America, South America, Europe, the Middle East, Africa, and Asia-Pacific.

This injector is fully cross-referenced with alternative part numbers 20R1917, 10R-7220, 10R7220, 326-4703, 3264703, CAT20R1917, CAT10R7220, and CAT3264703, simplifying sourcing for fleet operators and aftermarket distributors. The high pressure electronic fuel injection system optimizes fuel delivery under varying loads, contributing to improved fuel economy and reduced exhaust emissions. Each unit is factory tested and calibrated to support reliable cold starting, steady idle quality, and consistent power output in continuous industrial operation, high temperature environments, and dusty mining conditions.

Installation requires verifying the OEM part number, inspecting the fuel rail and injector bore, replacing the copper sealing washer, and torquing the hold-down bolts to Perkins service manual specifications. Electrical connection, fuel system priming, and optional injector coding complete the process. Best practices include using clean diesel fuel, replacing fuel filters at recommended intervals, draining water separators, and monitoring engine diagnostics to maximize service life and prevent premature failure caused by fuel contamination or low rail pressure.