Volvo Penta Genuine Belt for Volvo Penta 4.3L - 5.7L Inboard EnginesIt is found on Volvo Penta Inboard engines: 4.3L GXI/A/B/BF/C/CF/D/DF/E/EF 4.3L OSI/B/BF/C/CF/D/DF/E/EF 5.0L GXI-A/B/BF 5.0L OSI/B/BF/C/CF/D/DF/E/EF 5.7L OSI/A/AF/B/BF/C/CF/D/DF 5.7L OSXI/A/AF/B/BF/C/CF/D/DFHis characteristics : Outer perimeter: 2500mm Thickness: 21mm The 3889124 ensures optimal performance and durability. Designed for efficiency and longevity.