0103 006 Overflow Valve for Volvo Injector Pumps

What does an injector pump overflow valve do?

The injector pump overflow valve is a critical pressure control component within the fuel injection pump of heavy commercial vehicle engines. It functions by redirecting excess fuel back to the low-pressure circuit or the fuel tank to maintain a precise pressure threshold. This regulation is essential to prevent internal pressure spikes and ensures the engine maintains stable combustion and consistent fuel flow.

Engine and vehicle compatibility

This specific component is compatible with a wide range of Volvo engines, including the TD102, TD122, TD103, D10A, TD123, and D12A series. It is also fitted to Renault Trucks engines. The component is designed to meet the rigorous demands of heavy-duty service in trucks and buses.

Installation and maintenance guidance

When performing maintenance or troubleshooting fuel system irregularities like increased consumption or erratic idling, technicians should verify the pump type and opening pressure. Ensuring the valve matches the specific engine requirements is vital for maintaining the internal pressure balance of the injection pump.

Troubleshooting fuel system stability

VADEN ORIGINAL components are manufactured to ensure reliable performance in demanding environments. For professional installation, always check that the sealing elements are intact to prevent air ingress into the fuel system.

OE cross-reference

0103 006 (Injector Pump Overflow Valve) is the equivalent of the LASO, Renault Trucks and Volvo OE numbers. This part directly replaces LASO OE number 98091502. It also replaces Renault Trucks OE number 7403095479 and Volvo OE number 3095479.