Caterpillar original 10R-7222 Common Rail Diesel Fuel Injector for Heavy Machines C7 C9 Replacement for OEM 387-9433 Cross Reference 10R-7224 459-8473 original new injector

For heavy-duty Caterpillar equipment operating in high-stress industrial environments, maintaining precise fuel injection performance is critical to avoiding unplanned downtime and controlling operational costs. The CAT 10R-7222 is an OEM-spec diesel fuel injector designed as a direct replacement for Caterpillar C9, C9 ACERT, 3126B and 3126C engines, including industrial and generator set C9 variants. It is compatible with high-pressure common rail fuel systems and engineered to match original equipment performance requirements.

Precision-manufactured to micron-level tolerances, the 10R-7222 features hardened steel components, wear-resistant internal surfaces and corrosion-resistant treatment for extended durability in harsh conditions. Calibrated to OEM high-pressure standards, it delivers accurate fuel metering and optimized atomization through precision nozzle holes, boosting combustion efficiency, cutting fuel consumption and exhaust smoke, stabilizing idle, and improving throttle response to maximize engine power and torque.

This versatile injector supports equipment across construction, mining, agriculture, marine, power generation and industrial sectors, including excavators, loaders, graders, haul trucks, drilling equipment, marine power units and generator sets. It includes a 12-month warranty; following OEM maintenance guidelines (such as using clean ultra-low sulfur diesel and replacing contaminated filters promptly) reduces unplanned downtime and lowers total ownership costs for fleet operators.