332.03.0004 Roller for Fan Tension — Volvo compatible

What does a fan tension roller do?

This fan tension roller plays a critical role in the engine cooling system by maintaining the correct tension for the fan belt. By ensuring consistent belt pressure, it prevents slippage and minimizes vibration, which protects other belt-driven components from premature wear. This part is manufactured using high-strength components to withstand the demanding thermal cycles of heavy commercial vehicle engines.

Compatible vehicles and engines

The component is designed for a wide range of heavy-duty applications, fitting various models from Volvo, including FH, FM, FMX, VHD, and VNL series with D13 and D11 engines. It is also compatible with Renault Trucks models such as the T, K, Premium, and Magnum series featuring DTI or DXi engine configurations. This ensures reliable cooling performance across diverse fleet operations.

Maintenance and installation

For optimal performance, technicians should inspect the roller during routine cooling system maintenance. Any unusual noise or belt slippage may indicate that the roller requires replacement. Ensuring correct installation is vital for maintaining the integrity of the fan drive system.

Troubleshooting guidance

Check the compatibility list.

OE cross-reference

332.03.0004 (Fan Tension Roller Fan) is the equivalent of the Dayco and Volvo OE numbers. This part directly replaces Dayco OE number APV3144. It also replaces Volvo OE numbers 20795659, 21407376, 21872220.