original 217-2570 Diesel Engine Fuel Injector 235-9649 236-0962 235-2887 for C-9 330C Excavator D6R new injector original new injector

This C9 C-9 HEUI fuel injector is engineered specifically for the C9 and C-9 diesel engine platform, delivering OE-style fitment and reliable performance across both the C9 truck engine and C-9 industrial engine configurations. The injector is designed around the HEUI (Hydraulically Actuated Electronically Controlled Unit Injector) fuel system, where high-pressure engine oil drives precise injection events. With primary reference 217-2570 and broad cross-reference coverage including 10R-7224, 236-0962, 235-2888, 188-8739, 235-9649, 236-0692, 172-5780, 235-2887, and CA217-2570, the unit supports flexible replacement for service inventories and global heavy equipment markets.

The injector is purpose-built for -powered machines including the 330C, 330C L, 330C LN excavators, D6R II bulldozer, 12H motor grader, 973C track loader, TK711 / TK721 / TK722 / TK732 forestry equipment, and Challenger MT735, MT745, MT755, MT765, MTC735, MTC745, MTC755, MTC765 tractor series. Its solenoid-controlled operation, precision nozzle, and heavy-duty construction ensure consistent atomization, stable injection quantity, and durable sealing under demanding industrial duty cycles. Both new and remanufactured options are available to match different cost and sustainability targets across the global supply chain.

Because the HEUI system depends on clean fuel and high-pressure engine oil, proper maintenance is essential. Operators should use diesel fuel meeting regional standards, replace fuel filters on schedule, and change engine oil and oil filters on time. During troubleshooting, technicians should verify fuel pressure, oil pressure, injector actuation pressure, diagnostic trouble codes, cylinder cut-out results, and wiring harness condition. Common failure symptoms such as hard starting, rough idle, black or white smoke, misfire, power loss, elevated fuel consumption, engine knock, or fuel-in-oil should be evaluated against possible causes including internal leakage, poor atomization, solenoid failure, sealing failure, or electronic response issues, followed by replacement with a correctly calibrated injector group.