Caterpillar original 153-7923 Common Rail Fuel Diesel Injector 194-5080 170-5252 137-2500 147-0373 203-7685 for Car original new injector

The Caterpillar C12 Fuel Injector 153-7923 is an OEM-specification electronic unit injector engineered for Caterpillar C12, 3176, and 3176B diesel engines. Designed for inline 6-cylinder configurations with an 11.9-liter displacement and a power range of 300HP to 525HP, this injector assembly delivers precise fuel metering, optimized spray atomization, and electronically controlled injection timing to ensure complete combustion and stable engine output across demanding operating conditions.

Built to original equipment performance standards, the 153-7923 fuel injector assembly supports high fuel efficiency, reduced particulate emissions, and improved engine responsiveness and torque. Its heavy-duty construction provides long service life and reliable operation in industrial, marine, on-highway truck, generator, construction, and mining applications. Pre-installation inspection of injector bores, injector cups, fuel lines, electrical connectors, and fuel pressure is recommended, along with scheduled fuel system diagnostics for sustained performance.

Compatible with cross reference numbers 0R-9595, 10R-7251, and 235-1545, the Caterpillar C12 injector 153-7923 serves as a direct-fit replacement for Challenger 75C, Challenger 85C, E345B Excavator, CAT Generator Sets, and CAT Industrial, Marine, Mining, and Construction Engines. Global aftermarket support is available across North America, Europe, the Middle East, Asia Pacific, and South America for fleet operators and service networks.