Caterpillar original Diesel Fuel Injector 20R-1266 386-1769 For Caterpillar C3500B 3512B 3516B Engine Wheel Loader SR4BHV SR4B SR4 Generator Replacement for 386-1767, 20R-1276 original new injector

The Caterpillar 20R-1266 Fuel Injector is a precision-engineered high-pressure mechanical diesel injection component purpose-built for the CAT 3512B engine platform, serving demanding heavy-duty sectors across global industrial markets. As a critical component of the Caterpillar fuel delivery system, it delivers accurately metered diesel fuel into the combustion chamber under calibrated high pressure, supporting optimal combustion efficiency, consistent power output, improved fuel economy, and stable emissions performance during continuous operation.

Manufactured to industrial-grade OEM-equivalent quality standards, this injector delivers precise fuel atomization, stable injection timing, exceptional high-pressure resistance, and long service life even in harsh operating environments. It is compatible with all CAT 3512B engine variants (including marine, generator, industrial, oilfield, and power module configurations), with verified cross-reference numbers including 212-3467, 10R-0957, and 10R-1273 to streamline parts matching for maintenance and repair teams.

Every 20R-1266 unit completes 100% pre-delivery performance testing to meet factory specifications, and is backed by a 12-month warranty for commercial buyer assurance. It offers a 1-piece minimum order quantity, export-standard protective packaging, and flexible global delivery options via DHL, UPS, FedEx, TNT, air freight, or sea freight, accommodating both urgent replacement needs and large-scale project procurement requirements.