Perkins original Perkins Fuel Injector 20R-8058 238-8091 241-3238 243-4502 for C7 C9 320D 323D Truck Spare Parts new injector original new injector

The Perkins C7 fuel injector assembly, primary OE number 20R-8058, is a precision-engineered HEUI injector designed for Perkins C7 and C7 ACERT diesel engines. Built to original Perkins fuel system specifications, it ensures accurate fuel metering, optimized spray atomization, improved combustion efficiency, lower exhaust emissions, and consistent engine performance under heavy-duty operating conditions. The unit features hardened heat-treated needle valves, control pistons, and corrosion-resistant coatings for extended service life of 10,000+ operating hours under proper maintenance. Compatible cross reference numbers include 10R-4762, 10R-4762R, 222-5962, 236-6011, 238-9808, 238-9809, 241-3239, 243-4503, 295-1409, 328-2584, 387-9429, EX634762, 634762, FS10R4762, R10R4762, and R-10R4762.

This injector is widely applied across excavators (320D, 320D L, 321D, 323D, 324D, 325D), wheel loaders (924H, 930H, 938H, 950H, 962H), motor graders (140M, 140M2, 12M, 120M), backhoe loaders (420D, 430D, 432D, 442D), on-highway trucks from Freightliner, Kenworth, Peterbilt, International, and Sterling, as well as industrial generator sets including Olympian, FG Wilson, and Perkins power units. HEUI technology utilizes engine oil pressure to generate high injection pressure, delivering higher power density, better cold-start capability, reduced smoke, improved fuel economy, and lower NOx emissions.

Proper installation is essential for reliable operation: clean the injector bore, inspect the cylinder head seat, install a new copper washer, lubricate O-rings, torque the assembly to Perkins specifications, reconnect the wiring harness, prime the fuel system, and perform an injector cutout test to verify no leakage. As a direct replacement for OE number 20R-8058, this injector provides a dependable solution for global B2B distributors, engine rebuilders, and heavy equipment maintenance operations.