Rotary 9121 Replacement splined idler pulley for Poulan, Husqvarna, Craftsman replaces OEM #153531 Rotary Products are manufactured to Meet Or Exceed original equipment specifications.
- Fits 36 Inch & 46 Inch Cut mowers
- 4-5/8 Inch OD, 5/8 Inch Splined ID, 7/8 Inch Height
- Double Hex ID
- No assembly required