Belts transmit drive from the crankshaft to the alternator, water pump, cooling fan and other accessories, so belt condition determines the reliability of everything downstream. This group covers v-belts and multi-rib belts, tensioners, idler and jockey pulleys, fan drives, and mounting brackets. On generating sets the belt drives the cooling fan and alternator, so belt failure produces overheating and loss of charging together. Standby sets present a specific issue: belts degrade with age and heat cycling even when the set runs very few hours, so replacement should be driven by calendar time and inspection rather than accumulated running hours.
AMS Parts supplies a wide range of belts & tensioners components for Perkins engines used in power generation, marine, and industrial applications. Browse the full range below, or contact us for specific requirements.
By age and condition. Rubber degrades over time regardless of running hours, so a set with low hours may still need belts replaced on a calendar basis.
Insufficient tension, a worn or seized idler, pulley misalignment, or oil and coolant contamination on the belt face.
It is good practice. Automatic tensioners lose spring tension and damping with age and shorten the life of a new belt.