Caterpillar original Common Rail Diesel Fuel Injector 250-1314 250-1311 Replacement for OEM 10R-1290 Cross Reference 20R-3477 for Caterpillar 3508B 3512B 3516B Excavator Dozer original new injector

Developed for Caterpillar 3500B-series heavy-duty diesel engine platforms, the CAT 250-1314 fuel injector assembly is a precision-engineered OEM component built for mission-critical industrial operations. Validated against original Caterpillar manufacturing specifications, it delivers accurately metered high-pressure fuel directly into combustion chambers to support stable, efficient power delivery. It includes a full library of verified reman, service exchange and cross-reference part numbers to simplify OEM procurement, aftermarket maintenance and global supply chain part authentication.

Constructed from high-strength alloy steel and machined to strict OEM tolerances, the injector uses corrosion-resistant materials and thermal stress-resistant design to perform reliably across harsh operating conditions. Its advanced atomizer generates uniform, fine fuel droplets for optimized air-fuel mixing, thorough combustion, reduced soot emissions and lower fuel consumption, while the precision needle valve prevents injection dribble to extend service life. Every unit meets ISO and Caterpillar manufacturing quality standards for consistent, long-lasting performance.

It is fully compatible with Caterpillar 3508B, 3512B and 3516B diesel engines, with confirmed fitment across prime/standby generator sets, marine propulsion systems, heavy-duty mining trucks and oil & gas platform power modules. Suited for industrial, power generation, marine, mining and oil & gas applications, it arrives in individually sealed packaging with available OEM warranty to reduce unplanned equipment downtime and cut total operational costs for B2B operators.