The Idler Pulley 3/8" x 4-1/8" is a durable replacement part for MTD mowers, engineered to keep your belt drive system running smoothly. This pulley maintains proper belt tension and alignment, reducing slippage, minimizing wear, and extending the life of your mower’s drive components. Built from heavy-duty materials, it provides long-lasting performance and reliability in demanding mowing conditions.

Specifications:

• Product Type: Idler Pulley

• Bore Size: 3/8"

• Pulley Diameter: 4-1/8"

• Application: MTD lawn mowers

• Function: Maintains belt alignment and tension, prevents slippage, extends belt life

• Heavy-duty construction for durability and consistent performance