A4572001970
Belt Tensioning Roller for Fan Drive OM457
Detroit Diesel

The belt tensioning roller for the fan drive system is crucial in maintaining proper belt tension, ensuring efficient power transfer from the engine to auxiliary components like the fan. Its aluminum arm and case offer a lightweight yet sturdy framework, while the steel pulley provides durability and reliable grip. The 56 mm center-to-center length and 8-groove configuration facilitate proper alignment and tension, reducing belt slippage and wear. Correct tensioning extends the lifespan of belts and connected components, preventing breakdowns and costly repairs. Proper installation and periodic tension adjustments help sustain engine efficiency and cooling performance. This roller is engineered to withstand the vibrations and thermal stresses typical of heavy-duty operation. Source One Parts Center offers high-quality tensioner rollers that support your engine’s continuous, reliable operation, minimizing downtime.