Cummins Pressure Regulator Valve 4002080 for QSK45、QSK50、QSK60、QSK78

Product Name: Pressure Regulator Valve

 

Part NO.:4002080

 

Place of Origin: US

 

Engine Model: QSK45,QSK50,QSK60,QSK78

 

Engine Application: Truck, Machinery Equipment, Generator set or Marine

 

Quality: Original 

 

Warranty: 6 Months

 

Packing: Original Packing

The Cummins 4002080 engine pressure regulator controls the fuel pressure of the engine by diverting the fuel back to the tank, ensuring that the pressure level is within the recommended range and preventing damage to the engine due to excessive pressure.

4002080 pressure regulator valves are durable and made of high quality materials to ensure their durability and efficiency. It is specifically designed for use with QSK engines, thus ensuring that it fits perfectly and operates as required.

Part Material: Alloy steel valve body, spring-diaphragm sealing assembly

System: Fuel supply system, high-pressure fuel circuit

Single Piece Weight: Approximately 0.3 kg

Assembly Quantity: 1 piece per engine

Stabilizes the working pressure of the fuel line through overflow return; when the fuel line pressure exceeds the set threshold, the valve opens, allowing excess diesel to return to the tank, controlling fuel supply pressure within the factory-specified range, preventing high pressure from damaging fuel injectors, fuel lines, and other components, ensuring stable fuel pressure output for QSK high-power engines.

1. QSK45, QSK50, QSK60, QSK78 series electronic control engines
2. Compatible Scenarios: Mining dump trucks, large generator sets, fracturing equipment, oilfield power, ship main engines, large construction machinery

1. Internal spring fatigue in the pressure regulating valve causing pressure deviation and low fuel pressure, resulting in insufficient engine power
2. Valve core stuck open, fuel pressure not established, difficult or impossible engine start
3. Seal surface wear causing internal leakage, high return flow, unstable rail pressure, and idle vibration
4. Valve core stuck closed, fuel circuit overpressure, risk of fuel pipe or joint rupture
5. Replace the pressure regulating valve during fuel system overhaul or when troubleshooting abnormal fuel pressure faults

Hot Tags: Cummins Pressure Regulator Valve 4002080 for QSK45、QSK50、QSK60、QSK78, China Cummins Pressure Regulator Valve 4002080 for QSK45、QSK50、QSK60、QSK78 manufacturers, factory, automotive engine parts, valve, diesel engine parts, Cummins K38 Water Pump Seal Seat, engine spare parts, oil filter