Caterpillar original Fuel Injector 20R-2296 376-0509 375-4106 437-7547 Common Rail Diesel Injector for Caterpillar Machinery, for heavy duty diesel engine application original new injector

The Caterpillar (CAT) 20R-2296 is a precision-engineered diesel fuel injector assembly purpose-built for CAT 3500 series heavy-duty diesel engines, with primary fitment for the 3512B platform. Manufactured to meet strict OEM specifications and OEM-equivalent quality standards, it is one of the most in-demand Caterpillar injector assemblies in the global industrial aftermarket, with an extensive cross-reference database covering OEM, remanufactured, and interchangeable replacement part numbers to streamline B2B sourcing.

Engineered for consistent, accurate fuel delivery, the 20R-2296 uses a multi-hole precision nozzle to atomize diesel into microscopic droplets at exact timing and pressure, supporting improved combustion efficiency, higher power output, reduced fuel consumption, lower exhaust emissions, better cold-start performance, and reduced engine knocking. Its hardened alloy steel construction, corrosion-resistant surface treatment, and high-temperature tolerance deliver exceptional wear resistance and long service life even under continuous heavy-duty operation.

This versatile injector is compatible with equipment across power generation, marine, mining, oil and gas, construction, and stationary industrial power sectors, including marine propulsion systems, offshore platforms, oilfield machinery, and industrial power units. It is available in both new and remanufactured conditions, comes with a 12-month warranty, and buyers are recommended to verify fitment using the engine serial number to match specific engine arrangements and fuel system configurations.