Caterpillar original Caterpillar 10R-0955 replacement for OEM diesel fuel injector common rail new injector original new injector

The Caterpillar CAT C18 Fuel Injector 10R-0955 is an OEM-specification diesel fuel injector engineered for the Caterpillar C18 engine platform. It cross-references to 326-4700 and 328-2582, delivering a direct-fit replacement solution for fleet operators, rebuilders, and industrial maintenance teams. The injector operates within a high pressure electronic unit injection fuel system, mounting into the cylinder head of inline 6-cylinder C18 configurations with 18.1 liters displacement, including C18 ACERT, marine, and generator set variants.

Manufactured under ISO 9001 certified processes, this injector features precision nozzle design, corrosion-resistant materials, electronic precision control, and factory performance testing. The high pressure fuel delivery mechanism improves combustion efficiency, reduces fuel consumption, lowers exhaust emissions, enhances cold-start performance, and extends overall engine durability across heavy-duty applications such as CAT 374D and 385C excavators, 770/772/773 mining trucks, marine propulsion units, oilfield rigs, and industrial power units.

Installation requires cleaning the injector bore, replacing sealing washers, inspecting fuel lines, applying CAT approved calibration procedures, and performing leak testing with fault code clearance. Best practices include using OEM quality fuel filters, maintaining fuel cleanliness, draining water separators regularly, avoiding contaminated ULSD fuel, monitoring engine diagnostic codes such as Fuel Injector Circuit Fault, Cylinder Misfire, and Fuel Rail Pressure Deviation, and conducting periodic injector testing for sustained reliability.