Caterpillar original  10R3053 Diesel Common Rail Fuel Injector for 3500A 3508 3512 3516 3056E 3054T Engine 777B 785 789 D11N Excavator original new injector

The Caterpillar CAT 3512A Fuel Injector 10R3053 is a precision-engineered diesel fuel injection component designed specifically for the CAT 3512A V12 diesel engine. Built from high-strength hardened alloy steel, this injector delivers exceptional durability under continuous heavy-duty operation. Its multi-hole nozzle design ensures enhanced atomization and optimized spray patterns, promoting stable combustion, improved fuel efficiency, and reduced particulate emissions across demanding industrial environments.

This OEM-quality injector serves as a direct replacement for part numbers 340-3410 and 3403410, offering precise fitment without modification. Each unit is 100% flow tested and calibrated to meet strict performance standards, ensuring reliable fuel delivery and consistent engine output for power generation sets, marine propulsion systems, offshore oil platforms, and mining equipment. The advanced surface treatment provides strong corrosion resistance, protecting internal components from fuel contamination and harsh operating conditions.

Rated for engines producing up to 1700+ horsepower, the 10R3053 injector supports high-pressure direct injection systems with consistent metering accuracy. Proper maintenance—including regular inspection of fuel filters, verification of fuel pressure, and examination of spray patterns every 5,000 to 8,000 operating hours—ensures long service life and stable performance. Backed by a 12-month warranty, this injector is a dependable solution for maintaining the reliability and efficiency of CAT 3512A powered industrial and marine applications.