Serpentine Belt Tensioner – Fits Volvo Penta 3.0L-8.2L (Replaces Volvo Penta 3860079, 872984) 121HP A more serious symptom is

A more serious symptom is water inside the bellows or gear lube leaking out

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

and Suzuki outboards from 90 to 350 HP

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

Refill the lower unit with the correct gear lubricant before starting the engine

Serpentine Belt Tensioner – Fits Volvo Penta 3.0L-8.2L (Replaces Volvo Penta 3860079, 872984) 121HP A more serious symptom isProduct 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