Mastercut Lawn Mower Parts

Replace a broken torsion spring causing handle slack or engagement issues on your lawn mower. Common DIY repair restores proper tension and operation.

A flange lock nut, also known as a flange lock or a lock nut, is created to be used in various types of lawn and garden equipment. This flange lock nut holds other parts in place and, when properly threaded, will resist loosening. Over time, a flange lock nut may begin to weaken and may become loose or break. If it appears to be broken or weak, a replacement is required. Flange locks can be adjusted and uninstalled after use. When replacement is required, you may need a socket set, screwdriver, hacksaw, and butane torch. The socket wrench will loosen the bolt it is connected to, while the torch is used to heat the lock nut. A socket wrench may remove the nut, but sometimes cutting it with a hacksaw is required. This flange lock nut is a genuine OEM component directly from the manufacturer and comes in an individual unit. It is made of metal, a gold color, and can be found in various areas of lawn equipment. It works with lawnmowers, trimmers, snowblowers, cultivators, tillers, and leaf blowers by Poulan, MTD, Toro, Cub Cadet, Murray, Troy-Bilt, Bolens, Yard Machines, Craftsman, and Yard-Man.

This is a flanged lock nut. It’s designed to apply tension, typically on a joint that needs to have a certain amount of flex. As such, it’s mostly used on snowblower chutes and lawnmower handles. They can remain in place, but with a forgiving connection that can take a beating. The nut size is 3/8, with a thread size of 16. A lock nut will generally last for many years. However, the silicone ring inside will wear down if it’s frequently tightened and loosened. It needs to be replaced when it will no longer reliably remain in place. Generally, this begins as a symptom of slight slippage and worsens as time goes on. Thankfully, whether it’s being used on a snowblower or a lawnmower, this nut is generally straightforward to access. Simply unscrew the old nut, then screw the new nut on until it’s nice and tight. Our flanged lock nuts are genuine OEM MTD nuts, and they are sold individually.

A carriage bolt is a type of fastener. It features a smooth rounded head and a square domed top. It has threading, which leads to up to the square shoulder. The purpose of its square is to prevent the bolt from spinning. Once the carriage bolt is inserted through the hole, using a nut and washer can provide additional security. Carriage bolts can corrode and loosen over time. Since it doesn't have a slotted head, a socket wrench is needed when replacing. This bolt carriage replacement is compatible with wood chippers, tillers, string trimmers, lawnmowers, and edgers. It is a genuine MTD product that measures 5/16x.075. It has a smooth rounded head and square shoulder underneath it. This carriage bolt is sold individually.

Mower won't start even with brake engaged? A faulty interlock switch blocks current to the starter. This safety switch replacement restores starting function.

Hinge pin fastener for lawn mowers. Secures moving components and panels. Replace if bent, missing, or damaged to restore proper attachment and function.

Installing a brand-new air filter keeps the engine in top running condition. When the machine is in operation, the vacuumed air goes through the air filter. Any dirt or dust is left in the filter media. Over time, the filter will become dirty and can no longer provide the same filtering efficiency as before. If left ignored, the tiny particles could clog the engine and the carburetor. You may experience misfires and no engine start-up. An air filter replacement is cheap and easy to do. Simply remove the air cleaner cover and take out the dirty filter. Insert the new filter into the housing. This replacement will take less than 5 minutes. A screwdriver will be needed. The MTD 951-10298 Air Cleaner Kit is a genuine air filter from MTD. Each kit comes with one paper filter and one foam filter. The foam filter can be cleaned with water and detergent. The paper filter, however, needs replacement at least once a year. This air filter kit is compatible with Cub Cadet, PowerMore, and Troy-Bilt. It can also work with other garden equipment like wheel string trimmers, chipper-shredder vacuums, and log splitters.

Grass catcher frame that holds the grass-catching bag on walk-behind mowers. Replace if bent, cracked, or broken. Bag sold separately.

Mower vibrating excessively or blade loosening? This blade adapter connects the motor shaft to the mower blade. Simple DIY repair, typically 15 minutes.

Deck belt cover for riding mowers with 42-inch decks. Shields the belt assembly from debris and damage. Replace if cracked, broken, or missing.

Cleans incoming air for optimal engine performance. Replace when clogged or debris-filled to maintain proper airflow. Verify fit with your model number.

Metal carriage bolt with round head and threaded shank for lawn mowers and snow blowers. Replaces broken or missing hardware during repairs or assembly.

Wing knob for lawn mowers and snow blowers. Secures chutes, bagger frames, and adjustable components. Replace if cracked, broken, or missing.

Replacement wheel assembly for walk-behind mowers and lawn equipment. Installs on axle to restore mobility. Order when wheel is cracked, broken, or worn.

This bearing flange is used on a wide variety of lawnmowers and lawn tractors. Unlike other bearings, the flange bearing is used to ensure the axle assembly stays securely attached to the pivot axle. The purpose of the flange bearing is to make sure the axle is able to move freely and in an effortless manner. The bearing undergoes a large amount of friction and stress while in use, so it can start to wear down.If the lawnmower is showing signs of wear at the flange bearing, it should be replaced. It's a good idea to regularly inspect the part to be sure it is in good shape. To replace the flange bearing, remove the bolt from the steering shaft and remove the old bearing. Grease the new bearing and the shaft before reinstalling the part. Reassemble and tighten all parts.This is a genuine OEM replacement part that is directly sourced from the manufacturer. It is sold as an individual component. The flange bearing is made to be compatible with lawnmowers created by MasterCut, Yard-Man, Bolens, Huskee, MTD, Yard Machines, Murray, Troy-Bilt, Cub Cadet, and Craftsman.