Caterpillar original For 3512B 3508B 3516B Diesel Engine Common Rail Injector 20R-1264 386-1752 for Construction Machinery Generator Set, Replacement for OEM Parts, 392-0200 original new injector

As a precision critical component in CAT diesel engine fuel delivery systems, the original Caterpillar 20R-1264 high-pressure fuel injector is purpose-engineered for 3512B and related 3500 Series engines. Operating under commands from the engine control module (ECM), it accurately meters, atomizes and delivers diesel fuel into the combustion chamber at exact timing intervals, supporting improved combustion efficiency, reduced particulate emissions, enhanced fuel economy and stable optimal power output for engine operation.

This injector covers fitment for CAT 3512B, 3508B, 3516B, 3512B HD, 3512B Marine and other 3500 Series diesel engines for generator, industrial and oil & gas use. It serves a wide range of heavy-duty equipment across marine propulsion, power generation, mining, construction, oil & gas, industrial manufacturing, standby power and agricultural sectors, with a comprehensive cross-reference number database to support accurate parts matching across global supply chains and catalogs.

Built for extreme heavy-duty and continuous duty scenarios, the 20R-1264 injector meets or exceeds Caterpillar OEM specifications, with industrial-grade precision, wear-resistant and corrosion-resistant materials, high-pressure spray technology and factory performance testing to ensure consistent reliability. Proper installation per Caterpillar specifications and routine scheduled maintenance can further maximize its service life and reduce unplanned engine downtime for industrial operators.