Fuel Delivery Peace of Mind: Set of 6 OEM Fuel Injectors for Komatsu PC400-8 (2008–2012), RM6251-11-3100
What is it?
This Set of 6 OEM Fuel Injectors (RM6251-11-3100) is designed for Komatsu PC400-8 excavators built from 2008 to 2012. These injectors ensure the correct amount of fuel is delivered to each cylinder, supporting balanced engine performance and steady power output.
Why choose this OEM Injector Set?
Directly compatible with your Komatsu's engine calibration and factory wiring, this set requires no tuning or adjustments. Using genuine parts helps prevent issues like misfires, excessive smoke, uneven performance, or warnings often caused by aftermarket alternatives.
Key Benefits
✅ Complete set for accurate cylinder-level fuel delivery
✅ Restores smooth throttle response and engine balance
✅ Built to handle high heat and extended operation
✅ Helps eliminate cold-start problems, black smoke, and rough idling
✅ Enhances fuel economy and reduces cylinder imbalances
Applications
Perfect for overhauling or maintaining Komatsu PC400-8 excavators with Cummins ISB 6.7L engines manufactured between 2008 and 2012. Stable injector performance keeps operations consistent across demanding jobsite cycles.
Installation Notes
Cool down your engine and clean the injector wells before removal. Replace injectors one at a time, using new seals and bolts torqued to spec. After installing all six, clear any codes and conduct a test run to confirm smooth operation and fuel delivery.
Final Thoughts
If your Komatsu PC400-8 shows signs of inconsistency in power, rough idle, or excessive exhaust smoke, this complete OEM injector set offers a smart solution to restore smooth engine function—available now from Tamerx.