331.03.0002 Volvo compatible Fan Belt Tensioner

What does a fan belt tensioner do?

A fan belt tensioner is a critical component within the engine cooling system that maintains the correct tension on the drive belt. By ensuring the belt remains taut, this component prevents slippage and reduces vibration, which is essential for the consistent operation of the cooling fan and other belt-driven components.

Vehicle and engine compatibility

This component is compatible with various Volvo models including FH series, FM series, and VNL, as well as Mack Granite and Pinnacle models. It is also designed for Renault Trucks such as Kerax, Magnum, and Premium. For specific fitment, check compatibility with Volvo D12, D13, and D16 engines or Mack MP7 and MP8 engines.

Maintenance and inspection

To ensure proper engine performance, technicians should inspect the tensioner during routine maintenance intervals. Signs of wear include irregular belt vibration or audible squealing from the cooling system area. Proper installation ensures that the tension remains constant throughout varying thermal cycles.

Troubleshooting guidance

Maintaining the integrity of the belt drive system helps prevent overheating and protects other engine peripherals from excessive vibration.

OE cross-reference

331.03.0002 (Fan Belt Tensioner Fan) is the equivalent of the Dayco and Volvo OE numbers. This part directly replaces Dayco OE numbers APV1116, APV2389. It also replaces Volvo OE numbers 20515543, 20700787, 20924200, 21549016.