Parts for Mastercraft 31AE983I515 / 1998: General Assembly Parts

The replacement flat washer here is a part commonly found on many types of small engines, including those in lawn and garden equipment. The washer can be used on various parts of the engine depending on the make and model. The washer can help to spread the pressure of the connection over a wider surface area. This will help reduce damage to the machine at the connection point. The washers are made from metal and there may be a need to replace them. If they have become corroded, bent, or lost, they should be replaced right away. Owners should keep in mind what with some models, the washers will be secured with the use of a push pin. The push pins are sold separately. This is an authentic OEM replacement flat washer that is sold individually. The washer can be used on many types of equipment including lawn mowers, snowblowers, tillers, string trimmers, leaf blowers, edgers, log splitters, and wood chippers. Compatible brands include Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Husky, Yard Machines, MTD, Huskee, Montgomery Wards, Bolens, Yard-Man, Turf King, and MasterCut.

With small gasoline-powered tools that require control panels, this hex screw attaches the panel to the handles of the tools. Machined to be durable, important screws such as these take a real beating. In their locations at critical points on the handle, the hex screws are considered "wear items," and thus periodically, they must be replaced. The control panel itself is often a location of extreme forces, jostling, and abrupt movement in unpredictable directions. The constant movement, with sheet metal rubbing against the hex screws from every direction, make wear inevitable. The manufacturers recommend that spare screws of this type be kept on hand if the heavy use of the equipment is expected. Among the gasoline-powered tools that use these screws are snowblowers, yard tractors, mowers, tiller, chippers, shredders, and other tools requiring hand-maneuvered levers. These screws are compatible with a number of equipment brands and manufacturers, including MTD, Ryobi, Poulan, Yard-Man, Bolens, Troy-Bilt, and Yard Machines.

This is a replacement bell washer, a flat washer that can be used with a wide range of various types of lawn and garden equipment. The inner dimension of this washer is 0.40 inches, while the outer dimension is 0.88 inches. Washers are typically used as a way to help ensure a tight connection when used with bolts or screws. They will also help to distribute the pressure of the connection and reduce the risk of corrosion. Washers will also provide some protection from damage during installation. Washers could need to be replaced for any number of reasons. In some cases, they might have become corroded or worn down over time. This could mean they no longer provide a solid and secure connection. Other times, the washer could become lost while working on the machine. Owners should always be sure that they replace any lost or damaged washers right away. Not using washers can reduce the lifespan of the machine. This is a genuine OEM bell washer that is sold individually. It is typically used in lawn mowers, snowblowers, tillers, leaf blowers, string trimmers, log splitters, wood chippers, edgers, and chainsaws. It is compatible with Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Husky, Murray, Yard Machines, MTD, Huskee, Montgomery Wards, Bolens, Yard-Man, Turf King, and MasterCut brands.

Replacement chute assembly for snowblowers. Directs expelled snow away from equipment. Replace if cracked, damaged, detached, or missing from unit.

Chute bracket for snow throwers. Mounts to the chute assembly to provide structural support. Replace if bracket is cracked, bent, or missing.

Fix a loose or detached discharge chute with this chute adapter. Connects the lower chute to the auger housing. Replace if cracked or broken.

Bell washer adds spacing on shafts in lawn tractors, tillers, mowers, and chipper shredders. Replace if washer is missing, worn, or damaged during maintenance.

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.

Replacement chute flange keeper for snow throwers. Secures the discharge chute assembly to the housing. Replace if broken, cracked, or missing.

This OEM screw is a fastener with a trimmed six-sided or hexagonal head plus a washer face on the bearing surface. It is one of the most commonly used fasteners. Considered standard hardware, this component has multiple applications and can be used on woodworking, machine assembly, and mechanical repair. The screw is 3/4 long and has a thread size of 5/16 -18. A hex cap screw is installed into tapped holes by turning the head to fit and tighten. This is the fastener of choice in applications where tight tolerance is necessary. This is a genuine factory part sourced from the manufacturer and is sold individually. It can be used with Craftsman, Toro, Cub Cadet, Ryobi, Troy-Bilt, Murray, Yard Machines, MTD, Huskee, Montgomery Wards, Bolens, Yard-Man, and MasterCut brands of lawn maintenance equipment including lawn mowers, snowblowers, tillers, leaf blowers, log splitters, and wood chippers.

This replacement part is a bearing. This is a genuine replacement part made by MTD. Bearings are small but important parts found in many different types of machines. This part is able to reduce friction among certain pieces in the engine and keep things running properly and efficiently.A new bearing might be needed if the current one is damaged or worn down in any way. Bearings might become stripped down over time due to normal wear and tear. If this is the case it is recommended that it be replaced immediately so that the machine can return to normal functioning. Work gloves are recommended when replacing these small parts. This part is sold individually and is sourced directly from the manufacturer. This part is a genuine OEM replacement part.

This is a genuine 5/16 hex nut, a standard piece of hardware used to affix various components securely. This MTD nut is used in multiple applications and has several placement options depending on the model of the engine. Nuts can become stripped or worn over time. In some cases, the screws they are attached to may become stripped, which might require a replacement of both. A wrench is required to complete the replacement. This hex nut is designed to work with several brands that feature MTD engines, including RYOBI, Yard Machines, Yard-Man, MTD, Troy-Bilt, Husky, Bolens, and Cub Cadet. There are hundreds of machines that use this nut, including tractors, lawnmowers, blowers, cultivators, and snowblowers. This nut is sold individually; purchase additional parts as necessary.

This lock washer is used frequently for a number of applications on power yard equipment. The size, 5/16, is the default for many small engine housing and manifold applications. Lock washers are used with machined bolts to fasten engine blocks to the housing of the equipment being used. The compressed washer is able to handle the constant vibration of the small gasoline engine without losing the seal between the screw or bolt and the housing. Typically these lock washers only need to be replaced when they are misplaced during repairs or when the screws that attach them have to be chiseled or cut away, meaning the washers are destroyed as well. These OEM certified replacement washers have been manufactured to the same specifications as the originals they are replacing. In addition to lawn mowers, lock washers of this type and size are frequently used on blowers, lawn tractors, cultivators, snowblowers, and trimmers. Brands compatible with this type of washer are Murray, Husky, Poulan, Bolens, Yard-Man, Cub Cadet, Troy-Bilt, Yard Machines, MTD, and Ryobi.

Bearing housing for snow thrower auger assembly. Replaces cracked, broken, or worn housing that causes wobbling or noise. Mounts on auger shaft.

Replacement shear bolt for snow blowers. Designed to break when auger hits obstruction, protecting motor and gearbox. Replace after shearing or damage.

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.

33-inch shave plate for snow blowers. Mounts at the base of the auger housing to protect surfaces and control snow intake. Replace when worn, bent, or damaged.

Versatile bolt for lawn tractors and mowers. Secures various components throughout the machine. Replace when damaged, stripped, or missing.

Replace a lost, stripped, or corroded nut on your lawn mower, tractor, or outdoor power equipment. Secures components for safe operation.

This grease plug is a genuine OEM replacement part sourced directly from the manufacturer. It is found on snowblowers and other outdoor yard machines on the gearcase assembly, which houses the auger gear. The grease plug seals the oil port on the gearbox. This keeps lubrication inside the gearbox and is the access point for adding more when needed. If this plug is lost, the gearbox's oil could leak out, and contaminants could get into the gearbox.Lubricate the contents of the gearbox before installing the new grease plug. Locate and remove the two screws on the side to drain the gearbox. Install the grease plug in the bottom. Refill the oil using the vent hole. Continue filling until oil is coming out the top side screw. Close everything back up, and the machine is ready for use. To prepare the equipment for long storage, remove the grease plug and check the oil level. If it is not to the top, add more lubricant before sealing the grease plug.This grease plug is made of durable black molded plastic and is sold as an individual unit. It is compatible with snowblowers and snow throwers manufactured by Ryobi, MTD, Yard Machines, Troy-Bilt, Bolens, Yard-Man, Cub Cadet, and Husky.

Replace your snow blower oil seal to prevent leaks and protect engine components. Essential when you notice oil seepage or during maintenance. Verify fit.

Protects gearbox components from debris and weather damage. Metal housing keeps internal gears safe from foreign objects. Moderate difficulty repair.

Snow blower won't move forward or reverse? The drive shaft transfers engine power to the wheels. Common fix for loss of drive or jerky movement.

Oil seal prevents leaking from crankshaft input and output shafts. Replace when worn or damaged to maintain proper engine lubrication. Verify fit with model.

Sleeve bearing for snow blowers and throwers. Absorbs friction between moving parts for smooth operation. Replace if worn or damaged. Verify fit with model.

Thrust bearing reduces friction in snow blower moving parts. Replace if you notice unusual noise, vibration, or binding. Verify fit with your model number.

Thrust washer for snow throwers. Installs on drive shafts to reduce friction between rotating parts. Replace if worn, cracked, or missing.

Snow blower won't move or auger won't turn? This gear transfers power between components. Common fix for drive and auger system failures.

Left-hand double-thread worm gear for snow thrower auger drive systems. Replaces worn, stripped, or damaged gears that cause grinding or slippage.

Snow thrower making grinding noises or gears slipping? This gear assembly housing protects and lubricates internal gears for smooth operation.

This OEM screw is a fastener with a trimmed six-sided or hexagonal head plus a washer face on the bearing surface. It is one of the most commonly used fasteners. Considered standard hardware, this component has multiple applications and can be used on woodworking, machine assembly, and mechanical repair. The screw is 3/4 long and has a thread size of 5/16 -18. A hex cap screw is installed into tapped holes by turning the head to fit and tighten. This is the fastener of choice in applications where tight tolerance is necessary. This is a genuine factory part sourced from the manufacturer and is sold individually. It can be used with Craftsman, Toro, Cub Cadet, Ryobi, Troy-Bilt, Murray, Yard Machines, MTD, Huskee, Montgomery Wards, Bolens, Yard-Man, and MasterCut brands of lawn maintenance equipment including lawn mowers, snowblowers, tillers, leaf blowers, log splitters, and wood chippers.

Secures hardware, handles, and connections on lawn equipment. Replace if stripped, corroded, or missing. Standard hex nut for various outdoor models.

Flat washer for lawn mowers, tractors, and snow blowers. Replaces worn, missing, or damaged washers in fastening assemblies. Essential hardware piece.

This part is a replacement flange bushing. This is a genuine OEM part made by MTD and has been sourced directly from the manufacturer. This part is intended for use as a replacement in a broken, misplaced, or defective flange bushing on snow blowers. The flange bearing got its name from the “flange” that appears at its end. This flange helps with the mounting and proper alignment of the bearing, as well as improved ease of installation. If this part is worn down, lost, or broken in any way, it will require replacement for the equipment to function properly. Wear work gloves to protect the hands and check that equipment is powered off and cooled down before starting the repair process. For more accurate information on how and where to install this flange bearing, the appropriate owner's manual and equipment diagrams should be referred to. This flange bearing is a genuine OEM part made of durable plastic and is sold individually. It is suitable for use with snowblowers that have been manufactured by MTD, Yard Man, Troy-Bilt, Yard Machines, and Cub Cadet.

This V-belt rotates the auger and impeller on your snow blower. Replace when worn, cracked, or slipping to restore throwing performance. Verify fit.

Replacement skid shoe for snow blower auger housing. Protects surfaces and controls scraping height. Replace if cracked, worn, or missing for proper operation.

There are multiple uses for the 5/16-18 Hex Screw. It is often used with small gasoline-powered yard equipment such as lawn and garden machines. While hex screws such as these may be used in edgers and snowblowers, the most frequent use this screw is in yard tractors. This variety of screw is commonly used in attaching the various appendages of gas-powered equipment to a central operating platform. In particular, these hex screws are used to secure the engine block of power tools to the frame or housing of the equipment. Once in place, these fasteners have an almost unbreakable strength to them. This is so much so the case that often, in order to detach the engine manifold and repair the inner workings of an engine, the bolts must be chiseled or cut loose. In such cases, it is necessary for the bolts to be replaced during reassembly. Manufacturers insist that genuine OEM replacement parts be used in the rebuilding process. These replacement parts were manufactured to the same exacting specifications used to make the original screws. These OEM screws are compatible with equipment made and sold by Yard-Man, Cub Cadet, Troy-Bilt, Husky, MTD, Bolens, and Yard Machines.

This is a genuine washer lock that is designed to be used in various applications on lawn and garden equipment. It is a standard piece of hardware that provides a strong seal and distributes pressure between the two connected components. Because of the exposure to high pressure and vibrations, these washers can become damaged or broken over time. If they are not replaced promptly, the connection between the two different parts may be affected. These washers are small and can also get lost while doing other repairs, so it may be helpful to keep some extras on hand. This genuine OEM lock washer is manufactured to exact standards and is compatible with several lawn and garden machines from Husky, Cub Cadet, MTD, RYOBI, Yard Machines, Troy Bilt, Yard Man, and Bolens. It can be used with over 150 models of tractors, blowers, cultivators, trimmers, and snowblowers. Consult the parts diagram for the exact location(s) and application(s) of this washer. Replacing this washer will require a screwdriver or socket set to attach the screws or bolts that the washer is securing. Always wear gloves for hand protection when replacing engine components like this lock washer.

Brake bracket assembly for snow blowers. Secures the brake mechanism to the frame. Replace if cracked, bent, or broken to restore proper mounting.

Hex screw for lawn mowers and outdoor power equipment. Replaces lost, stripped, or damaged hardware. Secures components and panels during assembly.

The cotter pin is a fastener that is commonly used in lawn and garden equipment. The cotter pin helps provide a secure, locking fit that is adjustable and easy to remove. The cotter pin is commonly used on axles and rods, but it can have many applications depending on the machine and model. Cotter pins can become worn or break down over time because they are exposed to constant vibrations. It is important to replace damaged or broken cotter pins immediately as a broken part can render the equipment useless in many cases. This cotter pin is designed to exact OEM standards by MTD, and is designed for use in various equipment from MTD, Troy-Bilt, Craftsman, RYOBI, Yard Machines, Hard Man, Poulan, Husky, Bolens, and Cub Cadet. This is a 5/16 cotter pin that features a #34 diameter, and is made of a durable metal. This part is sold individually and those who require more than one will have to order multiple quantities. No other hardware is included. Always wear gloves when working on lawn and garden equipment.

Extension spring for gas snow blowers. Installs on control linkage or auger engagement system. Replace if broken, stretched, or missing for proper operation.

Wave washer for lawn tractors and snow blowers. Replace if washer is missing, flattened, or worn to restore proper spacing and tension in assembly.

This replacement part is a screw, and it is intended for use in different types of lawn equipment. This is a genuine replacement part made by MTD. This specific screw is typically found in snowblowers and is responsible for keeping different parts in place and secure. A new screw might be needed if any current ones are missing or damaged. After years of normal wear and tear screws can become stripped overtime and might need replacing. To replace this part the user should only need a common household screwdriver and possibly pliers if the screws have become wedged in an area. Overall this should be a fairly simple repair depending on the amount of new screws needed.This is a genuine OEM replacement part sourced directly from the manufacturer and is sold individually. Be sure the correct amount of screws are purchased as many machines require more than one to operate successfully.

Restore auger drive system function with this idler bracket. Essential for proper belt tension and auger engagement. Moderate DIY repair for snowblowers.

This is a bushing made from black plastic with a cleft down the middle to provide enough flex for easy insertion. It has a flanged design, which means it won’t easily pop out after installation, even under stress from constant vibration. The bushing’s primary purpose is to protect wires and cables from damage as they pass through a channel. As such, the material is fairly durable and does not need to be replaced under ordinary circumstances. That said, there are some situations in which it can become damaged. For one thing, it’s easy to damage while repairing the wires or cables that run through the bushing. If the bushing does need to be replaced, it requires disconnecting any cables or wires that run through the bushing. Pop out the old bushing with a rubber mallet, install the new bushing the same way, reconnect the wires, and the repair is complete. This is an OEM part sourced directly from MTD, and it is sold individually. It was initially used on snowblowers but has also been used on lawnmowers and lawn tractors.