Serpentine Belt Idler Pulley – Fits Volvo Penta 3.0L, 4.3L, 5.0L, 5.7L, 8.1L Engines (Replaces 3861009) 155HP It is best practice to

It is best practice to inspect the impeller for cracks

Carefully reinstall the lower unit

Replace the housing cover and secure it with the clips

measure the shaft on your trailer's winch stand before ordering

This 6" Mercruiser Spacer Kit raises the exhaust elbow by 6 inches on Mercruiser V6 and V8 marine engines

Serpentine Belt Idler Pulley – Fits Volvo Penta 3.0L, 4.3L, 5.0L, 5.7L, 8.1L Engines (Replaces 3861009) 155HP It is best practice toProduct Details This aftermarket Serpentine Belt Idler Pulley is designed for a wide range of Volvo Penta marine gas engines, including 3. 0L, 4. 3L, 5. 0L, 5. 7L, and 8. 1L models. It fits various GL, GXi, OSi, and Gi series engines manufactured from approximately 2000 to 2010, ensuring reliable performance for your sterndrive system. This component is a direct replacement for Volvo Penta part number 3861009. Engineered for direct fit installation.