A-B11721134SM-AI PULLEY, 3" ODOne New Aftermarket Replacement Idler Pulley with Bearing for Simplicity, Snapper, and Murray Lawn Tractors This 3" OD idler pulley with pressed in bearing is a drive belt system component used on Simplicity, Snapper, and Murray lawn tractors and mowers. It serves as an idler in the blade drive belt routing to maintain belt tension and ensure smooth, consistent mower deck operation. Specifications Outer Diameter: 3. 00" Includes pressed in bearing
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