Pressure Relief Valve 4307376 for Cummins B6.7 CM2350 B121B Engine

The Pressure Relief Valve 4307376 for Cummins Engines is a precision-engineered component designed to maintain safe fuel pressure within the diesel fuel system. By regulating excess pressure, it protects fuel injectors, high-pressure pumps, and associated components from damage due to over-pressurization.

This valve is compatible with Cummins B6.7, CM2350, and B121B engines and is manufactured to OEM specifications using durable, corrosion-resistant materials capable of withstanding high fuel pressures and extreme operating conditions.

Failure of a pressure relief valve can result in fuel leaks, injector damage, poor engine performance, hard starting, and fault codes. Installing the Cummins pressure relief valve 4307376 restores proper fuel pressure control, ensures consistent engine operation, and protects the fuel system from costly damage.

This valve is suitable for engine rebuilds, routine maintenance, diagnostics, and fleet service applications in heavy-duty, industrial, and on-highway Cummins-powered equipment.

✔ PRODUCT FEATURES & COMPONENTS

• Fuel system pressure relief valve

• Replaces Cummins part number 4307376

• Precision-engineered for accurate fuel pressure regulation

• High-strength, corrosion-resistant materials

• 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 CM2350

• Cummins B121B

✅ VEHICLE & EQUIPMENT APPLICATIONS

• Commercial trucks and buses

• Construction and industrial machinery

• Agricultural equipment

• Generator sets

• Off-highway and vocational vehicles

• Fleet vehicles with Cummins B6.7 series engines

✅ KEY FEATURES & BENEFITS

• Maintains proper fuel system pressure

• Prevents over-pressurization damage

• Protects injectors and fuel pumps

• Ensures smooth engine performance

• OEM-grade reliability and durability