Caterpillar original 188-8739 Cross Reference 235-2888, 387-9433 Engine Fuel Injector C7 C9  Replacement for OEM 172-5780 Excavator Part for E330 330C E336d E330d original new injector

Engineered for the rigorous demands of heavy-duty diesel operation, the Caterpillar 188-8739 fuel injector is a precision metering and atomization component developed for CAT C7 and C7 ACERT engines. Using electronic unit injection technology, it delivers finely atomized diesel into the combustion chamber under precise electronic control, achieving accurate fuel delivery, optimized combustion efficiency, improved fuel economy, and reduced exhaust emissions while maintaining stable engine power output.

Manufactured to OEM-equivalent standards, the injector features a precision-machined fuel delivery system, high-strength hardened steel construction, and corrosion-resistant materials for dependable performance under sustained high-pressure conditions. OEM-equivalent dimensional accuracy ensures correct fit and straightforward installation following Caterpillar procedures, while the heavy-duty design and multi-point quality inspection support extended service life. Each unit is supplied new in industrial export packaging and backed by a 12-month warranty, making it a dependable choice for OEM replacement, fleet maintenance, and engine overhaul programs.

The 188-8739 (1888739) directly replaces cross reference numbers 10R0955, 236-0962 (2360962), 387-9433 (3879433), and 10R4761, with 10R0955 also listed as the service exchange number. Compatible with CAT C7 industrial, marine, generator, and truck engine configurations, it is widely applied in excavators, wheel loaders, motor graders, generator sets, industrial power units, marine propulsion systems, agricultural equipment, and heavy trucks. Global supply is available for construction, mining, power generation, marine, and transportation buyers worldwide.