original 188-8739 Diesel Fuel Injector Assy for C7 C9 Engine Excavator E330 330C E336D E330D Replacement OEM 10R-7224 235-2888 236-0962 387-9433 Fuel Injector original new injector

Engineered for demanding heavy-duty applications, the 188-8739 Fuel Injector is a precision-manufactured diesel injection component designed as an OEM-equivalent replacement for C7 and C7 ACERT engine platforms. This injector assembly delivers reliable electronic unit injection performance across construction, mining, power generation, marine, transportation, and agricultural operating environments. Authorized cross-reference numbers include 188-8739, 10R0955, 236-0962, 387-9433, and 10R4761, ensuring broad compatibility with existing service inventories and fleet maintenance programs.

Constructed from high-strength hardened steel with corrosion-resistant materials, the injector features precision-machined fuel delivery passages that support high-pressure atomization and optimized spray patterns. Each unit undergoes multi-point quality inspection to verify dimensional accuracy, sealing integrity, and functional performance. Key benefits include precise fuel delivery, improved combustion efficiency, reduced fuel consumption, lower exhaust emissions, increased engine power output, and extended service life. The long service life design and heavy-duty industrial durability make it suitable for excavators, wheel loaders, motor graders, generator sets, marine propulsion systems, and heavy trucks.

For optimal performance, use high-quality diesel fuel, replace fuel filters regularly, prevent water contamination, and follow OEM maintenance schedules. During installation, clean the injector seat thoroughly, replace sealing washers, tighten fasteners to specifications, and perform leak inspection and ECU verification. Diagnostic procedures include ECU fault code reading, fuel pressure checks, injector balance testing, leak-off testing, and spray pattern evaluation to ensure long-term operational reliability.