original 387-9434 Diesel Engine Parts Fuel Injector Replacement OEM 387-9433 387-9432 387-9430 for Excavator new injector original new injector

Engineered specifically for the C9 inline six-cylinder turbocharged diesel engine, this HEUI fuel injector is built to match original performance specifications across 8.8 Liter displacement platforms producing between 205 HP and 375 HP. The injector integrates seamlessly with the electronically controlled fuel delivery system, delivering precise fuel quantity control and an optimized spray pattern that maximizes combustion efficiency. Manufactured with premium hardened steel internal components, the assembly offers high wear resistance and corrosion protection compatible with ultra-low sulfur diesel fuel, making it a dependable solution for high-hour industrial operation in excavators, track type tractors, motor graders, forestry equipment, generator sets, and pump or compressor engines.

Compatible with a wide range of heavy equipment models including the 330D, 336D, D6R, D6T, D7R, 160M, 2290, and 511, this injector supports reduced exhaust emissions, lower particulate generation, and improved cold-start performance. The component is designed to extend service intervals while maintaining stable horsepower output under continuous operation, ensuring that construction, mining, forestry, agriculture, marine, and oil and gas fleets can rely on consistent fuel system performance in demanding field conditions.

Installation and maintenance are simplified by following service guidelines. Operators should inspect fuel quality, check for injector leakage, and verify fuel pressure every 500 hours, conduct injector performance and cylinder balance testing every 1000 hours, and perform professional bench, flow, and response testing every 2000 hours. This maintenance schedule helps preserve injector integrity, sustain low emission output, and protect the long-term reliability of the C9 engine platform.