Parts for Mtd 21757S / 1985: Tiller Parts

Hex screw fastener for securing lawn mower components. Replace if stripped, rusted, or missing to ensure proper assembly and equipment stability.

Tension spring for lawn tractors and mowers. Replaces worn, stretched, or broken springs. Essential hardware for maintaining proper tension and operation.

Hex center nut secures components on lawn mowers and outdoor power equipment. Replace if stripped, corroded, or missing to ensure proper assembly.

Hex jam nut for lawn tractors, tillers, and mowers. Secures components and prevents loosening. Replace if stripped, corroded, or missing.

An idler pulley is an essential part of many small and medium sized gasoline powered tools. This idler pulley is used in equipment such as tillers, lawn tractors, log splitters, edgers, snow blowers, and trimmers. The idler pulley is necessary so that the engine can run without the tool's moving parts being engaged. For instance, a lawn tractor running without the cutting blades turning or the wheels rolling. Once the idler pulley is engaged, the blade begins to turn. There is a great deal of resistance encountered by the idler pulley each time the equipment's tools begin to turn. Over time, the pulley can become worn and will eventually need to be replaced. If there is a squealing sound whenever the moving parts of a lawn tool are engaged, it is probably a sign that the idler pulley is about to fail. The pulley itself is attached to the engine housing with 9/16 hex bolts and requires an adjustable wrench and 9/16 ratchet to remove and replace. Always use a genuine OEM manufactured replacement part such as this one when replacing the original, as this part is identical to the original. This part is compatible with equipment manufactured by Bolens, MTD, Cub Cadet, Huskee, and Troy Bilt.

Replacement flat washer for lawn mowers and outdoor power equipment. Replaces worn, missing, or damaged washers. Installs between bolts and components.

Hex screw for outdoor power equipment. Replacement fastener for lost, stripped, or damaged screws. Installs in various assembly locations.