New idler pulley set for some Mercruiser v6 and v8 engines

This is the for a smooth pulley that is about 3 3/16 in diameter and a groved pulley that is about 4 1/4 in diameter.

4 1/4 groved pulley replaces part number 864625T

 3 3/16 smother pulley replaces part numbers 8M6500024, 865598

Shipped USPS 2-4 day delivery 

We are a USA owned and operated company!

All parts ship from Boise, Idaho