The Pressure Relief Valve 0281006357 / 5291754 for Cummins Engines is a vital fuel system component designed to maintain safe and consistent fuel pressure within the high-pressure fuel system. Engineered to OEM specifications, this valve ensures excess fuel pressure is safely relieved, preventing damage to injectors, fuel pumps, and related components.
Designed for Cummins B6.7, ISBE4, and QSB6.7 engines, this pressure relief valve is manufactured using precision-machined internal components and high-grade materials to withstand extreme fuel pressures, heat, and continuous diesel engine operation. It plays a critical role in maintaining fuel system stability, injection accuracy, and overall engine efficiency.
A failing pressure relief valve may cause hard starting, rough idle, loss of power, excessive fuel return, or fault codes related to rail pressure. Replacing it with this Cummins pressure relief valve restores proper pressure regulation, improves engine performance, and helps protect expensive fuel system components.
This valve is ideal for fuel system repairs, preventative maintenance, engine diagnostics, and high-mileage service on commercial, industrial, and off-highway Cummins-powered equipment.
✔ PRODUCT FEATURES & COMPONENTS
-
Fuel system pressure relief valve
-
Replaces Cummins part number 5291754
-
Replaces Bosch part number 0281006357
-
Precision-engineered for accurate pressure regulation
-
High-strength materials for extreme fuel pressure resistance
-
Maintains stable common rail fuel pressure
-
Protects injectors and high-pressure fuel pump
-
Direct-fit replacement — no modification required
✅ ENGINE COMPATIBILITY
-
Cummins B6.7
-
Cummins ISBE4
-
Cummins QSB6.7
✅ VEHICLE & EQUIPMENT APPLICATIONS
-
Commercial trucks and buses
-
Construction and industrial machinery
-
Agricultural equipment
-
Generator sets
-
Marine and off-highway applications
-
Fleet vehicles using Cummins B6.7 series engines
✅ KEY FEATURES & BENEFITS
-
Regulates excess fuel rail pressure
-
Prevents fuel system over-pressure damage
-
Improves engine starting and drivability
-
Supports consistent injector performance
-
Reduces risk of fuel system fault codes
-
OEM-grade durability and reliability
What does a pressure relief valve do in a Cummins engine?
A pressure relief valve regulates excess fuel rail pressure to protect injectors, fuel pumps, and other fuel system components.
Which engines use pressure relief valve 5291754?
This valve is compatible with Cummins B6.7, ISBE4, and QSB6.7 diesel engines.
What are signs of a failing pressure relief valve?
Common signs include hard starting, loss of power, unstable fuel pressure, rough idle, and fuel rail pressure fault codes.
Is this a direct replacement part?
Yes, this pressure relief valve is a direct-fit replacement manufactured to OEM specifications.
