Caterpillar original Fuel Injector for Excavator and Truck 170-5240 for C12 diesel Engine 128-8510 Cross Reference Replacement for 170-5252, 116-5414 original new injector

Engineered for the rigorous demands of industrial diesel operation, the CAT-branded 170-5240 (searchable in both hyphenated 170-5240 and non-hyphenated 1705240 formats) is an original new Injector GP fuel injector assembly built for Caterpillar C12 engine fuel delivery systems. It delivers consistent fuel atomization, precise injection timing, accurate fuel metering, and stable combustion, supporting the long service life required for heavy-duty use cases. As a purpose-built Caterpillar fuel system component, it aligns with the performance requirements of professional diesel engine service workflows.
Its primary confirmed engine application is the Caterpillar C12 diesel engine, with related searchable use cases for Caterpillar C10, 3176C, and 3196 engines subject to verification of engine serial number, arrangement number, original injector part number, and calibration configuration. Potential equipment applications span heavy-duty trucks, excavators and other construction equipment, mining machinery, diesel generator sets, marine auxiliary engines, and industrial engine platforms, with all fitment requiring pre-installation confirmation.
It supports diverse B2B use cases including aftermarket replacement, engine overhauls, remanufactured injector programs, fleet maintenance, construction and mining equipment service, power generation support, and heavy-duty parts distribution. All associated listed part numbers are cross-reference, aftermarket search, or C12 injector family references for supply chain database lookup only, not guaranteed direct substitutes. The cautionary part number 10R-7222/10R7222 must never be used as a direct replacement without official parts system and engine serial number confirmation.