Mercruiser V6 V8 Serpentine belt Idler PULLEY set 4.3 5.0 5.7 6.2 L MPI pulleys
4 1/4 groved pulley replaces part number 864625T. 3 3/16 smother pulley replaces part numbers 8M6500024, 865598. We're pleasure to help you. using your model or serial number.