Caterpillar original Diesel Fuel Injector Assy 374-0750 Replacement for OEM 10R3264, for heavy duty diesel engine application, 20R-1914, 20R-1304 for C15 C18 C27 C32 Excavator original new injector

As a purpose-built precision component for Caterpillar heavy-duty diesel systems, the CAT 374-0750 (alternatively formatted 3740750) is an original industrial-grade diesel fuel injector group designed for use with C15, C18, C27 and C32 engine platforms. Its common application coverage includes C15 ACERT variants, with third-party catalog search references also covering 3406, 3508B and C-15 engines; all fitment depends on specific engine arrangement, serial number, emissions configuration and machine application to confirm compatibility.
Aligned with Caterpillar’s official definition of fuel injectors as components that deliver the correct fuel volume at the precise timing required, the 374-0750 functions as a precision fuel-metering component. It receives pressurized diesel fuel, regulates injection timing and output volume, and atomizes fuel to match real-time engine operating demands, supporting stable combustion, optimal fuel economy, full power output, balanced cylinder performance, reduced exhaust smoke and lower fuel waste for reliable heavy-duty operation.
This injector is traded globally under a wide range of verified OE, replacement, remanufactured and aftermarket cross numbers, including 10R-3264, 20R-2284, 20R-1914, 253-0615 and PAI 390088X. It fits a broad portfolio of Caterpillar equipment spanning construction, mining, petroleum and power generation sectors, including trucks, excavators, loaders, dozers, pipelayers and generator sets. B2B purchasers must confirm fitment via engine serial number, injector code and exact machine model before ordering to prevent application mismatches.