Serpentine Belt Idler Pulley – Fits MerCruiser 4.3, 5.0, 5.7, 6.2L V6/V8 Engines (Replaces 864625T, 807757T) 115-350HP Remove the cotter pin from

Remove the cotter pin from the propeller nut

Quickly remove the fill tube and adapter from the bottom hole and reinstall the lower drain/fill screw

we provide fair

Simple Installation: Features a strong self-adhesive backing for easy application

Maintains engine temperature at a consistent 160°F (71°C)

Serpentine Belt Idler Pulley – Fits MerCruiser 4.3, 5.0, 5.7, 6.2L V6/V8 Engines (Replaces 864625T, 807757T) 115-350HP Remove the cotter pin fromProduct Details This aftermarket Serpentine Belt Idler Pulley is designed for a precise fit on a range of Mercury MerCruiser engines, including 4. 3L (V6), 5. 0L (V8), 5. 7L (V8), and 6. 2L (V8) models with stern drive or inboard configurations. It ensures proper belt tension and guidance for reliable engine accessory operation. This component is a direct interchange for Mercury MerCruiser part numbers 864625T and 807757T, as well as Sierra part