Original 387-9433 Fuel Injector C9 3126 Engine Parts Fuel Injector 20R-1917 235-2888 10R-7222 553-2592 572-0119 original new injector

Engineered specifically for the C9 diesel platform, this Common Rail Fuel Injector (OE 553-2592 / 5532592) delivers reliable atomization and metering performance for excavator and heavy construction applications. It functions as a direct-fit Injector GP replacement for 330D, 336D, 336D2, and 340DL excavators, and is fully cross-referenced with 387-9433, 20R-1917, 572-0119, 10R-7222, and CA5532592 to support broad aftermarket sourcing.

The injector is designed for high-load operation under sustained torque and long duty cycles, providing a fine spray pattern that improves combustion quality, fuel economy, and power stability. Precision internal components enable accurate injection quantity across the RPM range, minimizing rough idle, vibration, and abnormal exhaust smoke. Each unit is recommended for bench testing prior to installation, ensuring flow rate, return volume, and spray geometry conform to service requirements. Packaging is flexible—neutral, branded, or customer-labeled—supporting distributor, workshop, and export channel needs.

Typical B2B applications include construction machinery repair, mining fleets, road construction, earthmoving projects, engine rebuilding, parts distribution, fleet maintenance, and emergency field repair. Recommended service practice includes clean diesel fuel usage, scheduled filter replacement, water separator drainage, and periodic diagnostic scanning to monitor rail pressure, return flow, and injector balance. Verify machine and engine serial number before installation to confirm correct fitment across regional C9 configurations and aftermarket supply chains.