Caterpillar original 20R-8427 Fuel Injector 10R-2828 for Excavator for C7 C9 C13 C15 Engines Replacement for OEM 387-9436 and 20R-1959 Common Rail Injector Aftermarket Parts original new injector

Engineered for Caterpillar C9 diesel engine platforms, the 20R-8427 heavy-duty fuel injector is a critical diesel fuel system component. Identified as a Cat Reman fuel injector in Caterpillar’s official parts listing, it performs the core function of delivering atomized diesel fuel into the combustion chamber at controlled timing and metered quantity. It is designed for 8.8L inline 6-cylinder C9 engine platforms, with verified cross-references to part numbers including 387-9435 and 20R-1959 for replacement use.

This injector supports a broad range of heavy-duty use cases across multiple industrial sectors. It is compatible with construction equipment including excavators, loaders, bulldozers and graders, mining support machinery, diesel generator sets, standby power units, rental generator fleets, industrial pumps, compressors and stationary engines, CAT C9-powered on-highway trucks, agricultural and forestry heavy machinery, and marine auxiliary power systems. It serves B2B buyers such as diesel repair distributors, heavy equipment parts dealers, engine rebuilders, fleet maintenance providers, mining contractors and generator service suppliers.

Due to the wide variety of C9 engine configurations and equipment arrangements, buyers must verify compatibility before purchase using the engine serial number, machine model, original injector part number and engine arrangement number. It is available in four condition options: new replacement, remanufactured replacement, aftermarket replacement, and original reman type, to support both routine injector replacement and full engine overhaul projects for global aftermarket diesel repair demands.