Caterpillar original 236-0957 Common Rail Fuel Injector Replacement for OEM 10R-7221, compatible with C7 C9 Engines for Excavator E324D E325D, Cross Reference 268-1836, 268-1835 original new injector

Engineered as a high-performance diesel fuel injection component for Caterpillar C9 engine platforms, the CAT 236-0957 fuel injector is manufactured in strict alignment with OEM specifications to deliver consistent, factory-grade performance. Constructed from high-strength alloy steel for cylinder head installation, this new/OEM-equivalent injector is validated for compatibility with C9, C9 ACERT, C9.3, industrial, marine, and generator-specific C9 engine variants. It is built to withstand the extreme pressure, temperature, and vibration levels common in heavy-duty industrial operations.

Controlled by the engine’s electronic control module (ECM), the injector supports high-pressure fuel delivery, precise metering, and fine atomization to optimize multi-stage combustion. This precision calibration translates to tangible operational benefits, including improved fuel efficiency, reduced exhaust emissions, faster throttle response, lower combustion noise, stabilized power output, and extended engine service life. Its industrial-grade design also features corrosion resistance, reliable cold-start performance, and a precision-machined nozzle for long-term durability.

The 236-0957 injector fits a wide range of CAT equipment, including 330D/336D series excavators, H-series wheel loaders, and C9 generator sets, serving construction, mining, marine, power generation, agricultural, and oil & gas sectors. It is suitable for replacement, overhauls, fleet maintenance, and engine rebuilding projects. Backed by warranty available upon request, technical documentation support, and global fast delivery options, it comes in industrial export packaging with batch supply capability for B2B customers.