Serpentine Belt Tensioner – Fits Volvo Penta 3.0L-8.2L (Replaces Volvo Penta 3860079, 872984) 121HP the included O-ring is critical

the included O-ring is critical for creating a proper seal between the thermostat housing and the engine

This skeg guard is designed for Mercury and MerCruiser Alpha One (Gen 1) sterndrive applications from 1985 through 1990

1 x Insert Cup (161571)

but it's wise to replace them during any major cooling system service or every few hundred hours as preventative maintenance

and Suzuki outboards from 90 to 350 HP

Serpentine Belt Tensioner – Fits Volvo Penta 3.0L-8.2L (Replaces Volvo Penta 3860079, 872984) 121HP the included O-ring is criticalProduct Details This aftermarket Serpentine Belt Tensioner is designed for a broad range of Volvo Penta marine engines from 1989 to the present, including 3. 0L, 4. 3L, 5. 0L, 5. 7L, 7. 4L, and 8. 2L GL, GLM, GSi, GXi, and OSi series. It ensures the serpentine belt maintains the correct tension for optimal accessory drive performance. This component is a direct interchange for Volvo Penta part numbers 3860079 and 872984, offering a reliable fit and