maintain plane at lower speeds
but it's wise to replace them during any major cooling system service or every few hundred hours as preventative maintenance
This is typically sufficient for applying registration numbers to both sides of a vessel
the included O-ring is critical for creating a proper seal between the thermostat housing and the engine
Serpentine Belt Tensioner – Fits Volvo Penta 3.0L-8.2L (Replaces Volvo Penta 3860079, 872984) 121HP maintain plane at lower speedsProduct 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