original 20R-1272 Diesel Engine Fuel Injector for C3500 3508 3512 3516 3524 C13 Replacement for OEM 392-0211 392-0210 20R-1274 20R-1265 original new injector

Engineered for demanding heavy-duty operating environments, the 20R-1272 fuel injector delivers precise high-pressure diesel fuel atomization for the 3512B series engine platform. Manufactured from hardened alloy steel with a precision machined injector body and wear-resistant needle valve design, this replacement injector meets original dimensional specifications and provides a reliable interchange with cross reference numbers 20R-1272 and 127-8216. Corrosion-resistant materials ensure stable performance in marine, offshore, mining, and petroleum service conditions.

This injector assembly supports the full 3512B engine family, including 3512B HD, 3512B Marine, 3512B Offshore, 3512B Petroleum, and 3512B Mining variants. Typical applications include generator sets, marine propulsion systems, offshore platforms, oilfield equipment, industrial power stations, emergency backup power systems, and continuous operation power plants. Engineering benefits include improved fuel atomization, reduced fuel consumption, enhanced combustion efficiency, increased engine power output, reduced carbon deposits, lower exhaust emissions, and extended engine service life. Each unit is backed by a 12-month warranty and supported for global export markets across North America, South America, Europe, the Middle East, Africa, Southeast Asia, Australia, and Central Asia.

Recommended installation involves shutting down the engine, releasing fuel system pressure, removing the old injector, cleaning the injector bore, inspecting sealing surfaces, installing the new unit, torquing to specification, bleeding the fuel system, and verifying performance. Preventive maintenance requires clean diesel fuel, regular filter replacement, and periodic bench testing.