Perkins original  20R-8058 20R8058 Diesel Common Rail Fuel Injector for C7 C9 Engine 320D 323D Truck Replacement for OEM original new injector

The Perkins C7 Fuel Injector 20R-8058 is a precision-engineered high-pressure diesel fuel injector designed to OEM Perkins fuel system specifications for reliable operation in C7 and C7 ACERT diesel engines. Built around the HEUI (Hydraulic Electronic Unit Injection) platform, this injector uses engine oil pressure as the intensification medium to generate high injection pressure, delivering accurate fuel metering, optimized spray atomization, improved combustion efficiency, lower exhaust emissions, and maximum engine performance under heavy-duty operating conditions. The assembly features precision multi-hole nozzle geometry for uniform fuel distribution along with hardened heat-treated needle valves and control pistons resistant to wear under high-pressure operation, while corrosion-resistant protective coatings safeguard internal components against sulfur contamination and moisture intrusion. When properly installed and maintained, the injector is rated for over 10,000 operating hours, and HEUI technology provides higher power density, better cold start capability, reduced smoke, improved fuel economy, and lower NOx emissions across demanding field conditions.
This injector is fully compatible with a wide range of part numbers, including 20R-8058, 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, and R10R4762, giving fleet operators and service shops extensive cross-reference flexibility for inventory consolidation. The unit fits excavators such as the 320D, 320D L, 321D, 323D, 324D, and 325D, wheel loaders including 924H, 930H, 938H, 950H, and 962H, motor graders 140M, 140M2, 12M, and 120M, and backhoe loaders 420D, 430D, 432D, and 442D. It is also approved for on-highway trucks from Freightliner, Kenworth, Peterbilt, International, and Sterling, as well as industrial generator sets from Olympian, Perkins Genset, and FG Wilson.
Proper installation is critical for long service life. The recommended procedure includes cleaning the injector bore, inspecting the cylinder head seat, fitting a new copper washer, lubricating O-rings, installing the injector assembly, torquing to Perkins specifications, reconnecting the wiring harness, priming the fuel system, performing an injector cutout test, and verifying the absence of leakage. Following these steps ensures correct seating, balanced cylinder contribution, and full compliance with the performance and emissions standards expected of Perkins C7 ACERT diesel power systems across construction, mining, agricultural, marine auxiliary, and power generation applications worldwide.