Caterpillar original Fuel Injector 116-5414 Replacement for OEM, for heavy duty diesel engine application, Cross Reference 128-8510, 10R-0963, 166-0149 for Diesel Engine C12 original new injector

The CAT 116-5414 fuel injector is a precision-engineered diesel fuel injection component built to strict OEM specifications for Caterpillar heavy-duty engine platforms, designed as a direct original-equipment replacement for C12 and related engine lines. It is fully compatible with Caterpillar C12, C12 ATAAC, C10, 3176B, and 3196 diesel engines, with verified cross-reference support for part numbers 1165414, 0R-8479, 0R8479, 10R-0957, and 10R0957 to streamline cross-platform parts sourcing.

Constructed from high-strength alloy steel with precision-ground nozzle components and advanced calibration, the 116-5414 operates via an Electronic Unit Injector (EUI) system synchronized to engine ECM commands. The unit builds high internal fuel pressure before opening its nozzle to deliver atomized diesel directly into the combustion chamber, enabling accurate fuel metering, improved combustion efficiency, enhanced horsepower, lower fuel consumption, reduced smoke emissions, and better cold-start performance. Every unit undergoes factory testing to confirm high-pressure handling, corrosion resistance, long service life, and reliable direct-fit operation.

This injector supports a broad range of heavy-duty equipment across industrial sectors, fitting excavators, wheel loaders, articulated dump trucks, generator sets, marine propulsion systems, industrial power units, mining equipment, and on-highway diesel trucks for construction, mining, transportation, marine, agriculture, energy, industrial manufacturing, and power generation use cases. It ships in export-standard packaging with a 12-month warranty, a 1-piece minimum order quantity, and global shipping availability, supporting both wholesale and retail procurement with guaranteed OEM-level quality.