Mastercut Parts

V-belt idler pulley for riding mower transmission systems. Replace this pulley if worn, cracked, or causing belt misalignment on your lawn tractor.

Complete deck assembly for push walk-behind mowers. Includes all fasteners and components for full deck replacement when original is cracked or damaged.

Metal clevis pin secures parts on lawn tractors and riding mowers. Replace if bent, worn, or missing to restore proper attachment and connection.

Center hex nut for lawn mowers, snow blowers, and tillers. Secures blade assemblies and drive components. Replace if stripped, corroded, or missing.

Hex lock nut secures bolted joints on outdoor lawn equipment. Replace if threads are stripped, nut is missing, or won't hold proper tension.

The lock nut is a piece of standard hardware that may have a variety of applications on lawn and garden equipment, including on engines, housings, and other components. The lock nut offers a secure fit by tightening into a flange that prevents the nut from loosening like a regular nut might. Over time, the flange or the nut can become worn or damaged. In some cases, lock nuts may be lost during the process of other repairs or maintenance. Replacing them with genuine OEM parts like this lock nut is the best solution. This lock nut is compatible with hundreds of machines, including mowers, snowblowers, and chippers from MTD, Troy-Bilt, Cub Cadet, RYOBI, Yard-Man, Yard Machines, Bolens, and Husky. The ¼-inch lock nut has multiple locations and applications, so owners should consult their parts diagram for exact placement and part number identification. This lock nut is made of durable metal and sold as a single unit. Those who need additional pieces will have to order multiple quantities. This part will require a wrench or a socket to replace, as well as pliers and/or a screwdriver to hold the bolt or screw in place.

Fixes mower that won't move forward or self-propel function fails. This transmission spur gear restores drive power. Moderate DIY repair for walk-behind mowers.

Fix uneven wheel speed or difficulty turning with this lawn tractor differential assembly. Transmits torque to rear wheels for smooth operation.

Ball joint assembly for lawn tractor steering systems. Secures tie rod ends and drag links. Replace if cracked, worn, or damaged to restore proper steering.

This is a simple set of lawnmower ignition keys. They’re also used for an array of riding mowers, lawn tractors, and even snowblowers. To simplify repair and replacement procedures, most manufacturers use standardized keys for all their machines in a given class. As a result, a single key can be used for dozens of machines. The keys are manufactured from stainless steel, with an INDAK logo stamped into the center. Regardless of whether the machine is a walk-behind mower or a full-sized lawn tractor, a keyed ignition is easier to operate than a recoil cord. Similarly, replacing a key is generally straightforward. The exception is if the old key has snapped off in the ignition. In this case, a set of needle-nosed pliers can sometimes be used to extract the key. A powerful magnet can also be helpful if the broken key is being stubborn. In the worst-case scenario, the ignition may need to be replaced. This is an OEM part sourced directly from MTD, and it is sold as a set of two.

Fix a riding mower that won't start or stay running with this screw-mount switch. Direct replacement part for lawn tractors and riding mowers.

Spring switch for lawn tractors and riding mowers. Mounts near the switch button. Replace if worn, broken, or damaged from regular use over time.

Tubeless air valve for lawn tractor and mower tires. Replace when cracked, leaking, or damaged during tire changes. Installs in wheel rim for proper inflation.