Caterpillar original Caterpillar 20R-8968 Fuel Injector Assy for C9 C7 E330D E336D E325D E329D Excavator new injector original new injector

The Caterpillar CAT C9 Fuel Injector 20R-8968 is an Original Reman diesel fuel injector engineered to deliver like-new performance for C9-powered heavy equipment. Built with specialized metallurgy and proprietary manufacturing processes, it incorporates engineering updates that support reduced smoke, recovered engine power, and improved idle quality. Its precision fuel metering and optimized diesel atomization promote stable combustion, while the heavy-duty design ensures reliable operation across demanding industrial, construction, mining, and petroleum applications. Compatible with modern low-sulfur, low-lubricity diesel fuels, this injector is the trusted solution for replacing worn or leaking units in CAT C9 engines.

This CAT C9 diesel injector covers a broad range of machines, including excavators 330D, 336D, 336D2, 340D2, motor graders 140M and 160M, wheel dozers 814F, 815F, 816F, wheel tractor-scrapers 627G and 637G, track loader 973C, forestry models 521B, 522B, 532, 541, 552, 2390, MD5075, MD5075C, and petroleum/industrial engine packages TH31-C9P, TH31-C9I, and CX31-C9I. Authorized cross references include 557-7633, 20R-8064, 20R-8065, 236-0962, 10R-7224, CA20R8968, CA5577633, and CA20R8064, ensuring broad interchangeability across C9 equipment fleets.

To maximize service life, operators should maintain clean fuel, replace filters on schedule, drain the water separator, inspect fuel tanks, and perform return-flow and cylinder balance testing when symptoms such as hard starting, rough idle, black or white smoke, engine knock, power loss, high fuel consumption, fuel dilution, or injector fault codes appear. Always scan ECM codes and follow the engine service manual before replacement.