Part # 8478
Dimensions:
-3" o.d.
-1/2" width
-.669" bore
Fits Murray 25", 30" & 36"
Replaces Murray 420613 and 91178
Rear Engine Rider Models: 7-35500, 7-30502 & 7-25501.
Composite: Glass Filled Nylon.
All Idler Pulleys that have .669" bore can be reduced to 3/8" or 1/2"