Volvo Penta D3 separate pulley – 30637962

Volvo Penta D3 idler pulley 30637962 is a guide pulley primarily used in the cooling and electrical systems of Volvo Penta D3 diesel engines. The pulley guides and supports the belt that drives the alternator and auxiliary systems, preventing slipping and contributing to stable operation of the engine accessories. The part can also be replaced by the older/alternative number 30729939.

Key features and benefits:

Idler pulley function: Maintains belt tension for alternator and auxiliary systems.
Prevents slipping: Ensures stable drive and efficient operation.
Comparable replacement: Compatible with older reference 30729939.
Durable: Designed for long-lasting use in marine conditions.