Cummins QSB 6.7L Fuel Rail Pressure Regulator DRV 2017-2023: OEM 5291754

Precise Fuel Pressure Control for Cummins QSB Engines

What Is It?

The Fuel Rail Pressure Regulator DRV (Dosage Regulator Valve) OEM 5291754 is a factory-calibrated component designed for Cummins QSB 6.7L engines manufactured from 2017 to 2023. This valve regulates the amount of fuel entering the common rail, ensuring the correct pressure is maintained for proper injector operation and combustion efficiency.

Why Choose OEM 5291754?

As a Cummins OEM part, this DRV offers exact fitment, reliable pressure control, and seamless integration with your engine’s electronic control system. Malfunctions in this valve can cause hard starts, poor fuel economy, and inconsistent power delivery—making OEM reliability critical.

Key Benefits

✅ OEM Match for QSB 6.7L (2017–2023)
✅ Consistent Fuel Pressure Regulation
✅ Direct Plug-and-Play Connection
✅ Engineered for Harsh Diesel Environments
✅ Supports ECM-Controlled Fuel Management

Applications

This DRV is commonly found on industrial, agricultural, and off-highway equipment powered by Cummins QSB 6.7L engines. It is essential for engines operating under Tier 4 Final emissions regulations where precise fuel control is required.

Installation Notes

Install with care using a qualified technician. Always depressurize the fuel system before removal. Inspect the fuel rail and wiring harness for wear or contamination. After replacement, clear diagnostic codes and verify pressure regulation using Cummins-compatible diagnostic software.

Final Thoughts

The OEM 5291754 Fuel Rail Pressure Regulator DRV ensures smooth, regulated fuel delivery for Cummins QSB 6.7L engines. With OEM-grade performance and durability, it plays a key role in maintaining reliable combustion and emissions compliance in heavy-duty operations.