Parts for Mtd 31CH97SJ799: Auger & Housing / Gear Box Parts

This replacement part is a bolt and is intended for use in different types of lawn equipment. This is a genuine replacement part made by MTD. This bolt has many different uses and is a versatile part in lawn mowers and power tools. Bolts help other parts of the machine or appliance stay together and in place so that the entire machine is able to run smoothly. A new bolt might be needed if the current one is missing or damaged in any way. It is common for bolts to become stripped overtime due to normal wear and tear and need to be replaced. It's common for users to have some on hand so consider purchasing more than one. This repair should be simple and require no more than a screwdriver and possible pliers if the previous part is stuck. This bolt is sold individually and is a genuine OEM replacement part.

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.

This screw is used on a variety of lawn and garden equipment from many manufacturers. This hex screw is a large bolt that has a six-sided head that can be used to fasten metal to wood or wood to wood. This type of screw is unique from traditional screws because the bolt head needs to be held with a socket while a second wrench is used to tighten or loosen the part. The bolts have a smooth shank and small threads. These screws can break or become damaged and no longer do their job. When that happens, they will need to be replaced. A hex key wrench can be placed into the slot of the screw and turned counterclockwise to loosen up the bolt. The replacement hex screw can then be placed in the original hole to adhere parts together on lawn equipment. This is a genuine replacement OEM screw that is commonly used on Craftsman, Toro, Murray, MTD, Yard Machines, Troy-Bilt, Bolens, Yard-Man, MasterCut, Cub Cadet, and Huskee lawn mowers, log splitters, snowblowers, chainsaws, tillers, and string trimmers. The screw is sold individually and made of durable metal.

The Hex Head Self-Tapping Screw is an OEM part for MTD outdoor power equipment. This screw is designed to securely fasten components of your equipment, providing reliable and durable connections. The thread size is 5/16 inches for major diameter, with 18 threads. The screw is 3/4 inches long and has a hexagonal or six-sided head. 

Over time, the Hex Head Self-Tapping Screw can become damaged due to corrosion, stripping of the threads, or wear from frequent tightening and loosening. This can compromise the integrity of the connections and potentially lead to equipment malfunction.

Symptoms of a bad Hex Head Self-Tapping Screw include:

• Loose or wobbly components
• Difficulty tightening or loosening the screw
• Visible damage or corrosion on the screw

This OEM replacement part is designed for use with various models of MTD outdoor power equipment.

This replacement part is a gear. This is a genuine replacement part made by MTD. This part is made with ridges that are able to connect to other parts so that they can turn or spin during use. This transfers energy and force to different pieces in the machine to ensure that the everything is working properly. A new gear might be needed if the current one is struggling to stay attached to other parts. This can be due to the ridges become stripped over time. If this is the case, the gear should be replaced. gears experience large amounts of friction and will need to be replaced after a while. This is a genuine OEM replacement part. This part is sold individually and is sourced directly from the manufacturer.

A flange nut's unique wide flange design distributes the nut's pressure over the part it is securing. In return, it creates an even fastening surface, which reduces part damage and nut loosening. This one-piece all-metal fastener has a lock nut version that features a protruding circular flange. This drastically increases bearing surface, compatibility either for irregular or oversized holes, and surface tension reduction. Flange lock nuts are the preferred type of fastener for many lawnmower models because it can provide better fastening than regular screws, which are known to loosen under extreme vibration. However, it’s important to know that flange lock nuts are susceptible to wear and tear due to constant vibration exposure. It is essential to replace the broken flange lock nut immediately to prevent serious damage to the lawnmower. The MTD 712-04063 Flange Lock Nut OEM replacement can be used with Craftsman, White Outdoor, Yard Machines, MTD, or Columbia lawnmowers. It is a genuine or OEM MTD replacement part that measures 5/16-18. It is threaded and requires the use of a wrench. This replacement flange lock nut is sold individually. An MTD bolt carriage may also be needed and is sold separately.

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.

This sleeve is a genuine MTD part. It is a replacement part for snow blowers and snow throwers primarily, but is also sometimes utilized on other small engine lawn equipment.Sleeve bearings are very important as they help with linear movements between two parts. They do this by absorbing the friction created by the two other parts, which reduces noise and vibrations. It is normal for them to wear out over time. Increased noise is one way to recognize this problem.This sleeve bearing is a genuine OEM part sourced directly from the manufacturer. It is sold individually. Some machines require more than one sleeve bearing. It is compatible with equipment made by White Outdoor, Craftsman, Mastercraft, Columbia, MTD, Troy-Bilt, Cub Cadet, Yard Machines, Yard-Man, and others.

A cotter pin, also known as a hitch pin, is used to secure pins and shafts in place. Meant for snowblowers, riding lawnmowers, and lawn tractors, this bow-tie shaped cotter pin has a double-end design making it easy to pull or push through either side of a pre-drilled hole. This pin snaps into a locked position without tension, keeping it secure during operation. Designed for lawn and garden maintenance equipment, this part ensures secure fastening. If the power equipment is used frequently, cotter pins may have to be replaced regularly so it would be practical to keep extra bow tie cotter pins on hand. It is highly recommended that work gloves be worn during the installation of this part. This part is compatible with Craftsman, Cub Cadet, Troy-Bilt, Murray, Yard Machines, MTD, Huskee, Bolens, Yard-Man, and MasterCut brands of lawn mower, snowblower, and log splitters. This is a genuine OEM replacement part that is sold individually.

This is a seven-inch cable tie that is used with different types of lawn and garden equipment. It is most commonly used to secure the cable onto the handle of the lawnmower or tiller so it is secure. The cable tie is made of durable plastic but can be damaged or break. When this happens, the tie will need to be replaced to ensure the cable stays on the handle.If the cable tie needs to be replaced, no tools are needed. In the situation where other parts need to be replaced at the same time, a basic set of tools and a pair of work gloves may be required. Turn off the yard equipment and place it on a stable surface before replacing the broken cable tie. The old tie can be removed so the new one can be installed before further use.This cable tie is an authentic OEM replacement part that is directly sourced from the manufacturer. This product is sold individually. The component is designed to be compatible with lawnmowers, lawn tractors, tillers, and snowblowers manufactured by MTD, Troy-Bilt, Yard-Man, and Yard Machines.

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.

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.

Note: This is a quantity of 1 shear pin only. For kit of 4 shear pins with retainers, order OEM-738-04155

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.

This part is an idler pulley. The idler pulley applies tension to and guides the engine drive belt. A wrench set is needed to perform any repair involving the idler pulley part.The idler pulley can become worn over time with normal use. Wear to the pulley can cause the belt to slip. Signs that the idler pulley needs to be replaced include squealing noises coming from the equipment, the engine stalling, or overheating. The idler pulley is an essential component and it is important to replace this part if it becomes worn, broken, or damaged in any way.This part is a genuine MTD part and is an OEM part sourced directly from the manufacturer and it is sold individually. This idler pulley is compatible with lawn tractors and snowblowers manufactured by MTD, Yard Machines, Bolens, Yard-Man, Troy-Bilt, Cub Cadet, and Husky.

This oil seal is a genuine MTD part. It is designed as a replacement part for snowblowers. Oil seals do exactly what their name implies: they prevent oil from leaking. They are located on the input and output shafts of the crankshaft of the snowblower.It is not abnormal for oil seals to become worn over time, especially under heavy use. Users may notice oil leaking, especially while using the snowblower, if this is the case. Leaking oil can cause a mess (which can be dangerous) or may seriously damage the engine. Replacing an oil seal is a relatively simple repair, though some disassembly of the engine may be required. The oil seal itself is very small and round.This oil seal is a genuine OEM part sourced directly from the manufacturer, and it is sold individually. There is more than one oil seal on most snowblowers, so check them all before ordering. It is designed for compatibility with machines made by Craftsman, MasterCraft, White Outdoor, Columbia, Yard-Man, Cub Cadet, MTD, Yard Machines, and Troy-Bilt.

This part is a replacement thrust bearing. This is a genuine OEM part made by MTD and has been sourced directly from the manufacturer. It is intended to replace a broken or defective thrust bearing in outdoor power equipment.Bearings help to reduce friction created by moving parts as well as ensure the equipment functions smoothly and without excessive vibration. Bearings can become worn, corroded, jammed, or otherwise defective, requiring replacement. 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 use this thrust bearing, the appropriate owner's manual and equipment diagrams should be referred to. This thrust bearing is a genuine OEM part made of durable metal and is sold individually. It is suitable for use with small engine outdoor power equipment models that have been manufactured by MTD, Craftsman, and other brands.

This plastic slide shoe is a genuine MTD part, sold individually. This plastic slide shoe can be used as a replacement part in a snowblower. The purpose of the plastic slide shoe in a snowblower is to allow a small bit of snow to hold over below the snowblower so that the appliance does not come into direct contact with the concrete surface, which could damage the appliance.The plastic slide shoe in a snowblower might have to be replaced at some point within the typical lifespan of the appliance if the plastic slide shoe can no longer protect the snowblower from damage while in use. If the plastic slide shoe is lost, misplaced, or compromised to the point of reduced or negated functionality, the component should be removed and replaced by this genuine OEM replacement part. Remember to always wear gloves when handling, repairing, and operating outdoor equipment. Always unplug the appliance before performing any kind of repair or replacement.Sourced directly from the manufacturer, this component is a genuine replacement part that is sold individually. This plastic slide shoe is compatible with the following outdoor appliance brands: MTD, Craftsman, Cub Cadet, and Troy-Bilt.

This is a hex screw used on a variety of types of lawn and garden equipment. On large machinery, it is often used to mount the gas tank. On smaller items, it tends to be used to clamp the housing together. It can secure items like plastic, metal, brick, and wood together. It measures 5/16-18 x .75 inches and is made of durable metal. In some cases, the screw can become damaged, broken, or stripped, which means it needs to be replaced.A visual inspection will indicate whether the screw is damaged. If it needs to be replaced, a hex wrench can be used to remove it from the equipment. Afterward, the replacement hex screw can be installed with the wrench before being tightened to ensure materials hold together well.This hex screw is a genuine OEM part that is sold individually. It is sourced directly from the manufacturer. The hex screw is compatible with lawnmowers, wood chippers, log splitters, snowblowers, chainsaws, edgers, tillers, leaf blowers, and string trimmers by Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Husky, Broan, Yard Machines, MTD, Huskee, Montgomery Wards, Bolens, Turf King, Yard-Man, and MasterCut.

This is a genuine OEM gear housing assembly sourced directly from the manufacturer; it is used on snow blowers to protect the components in the gearbox. This solid metal housing prevents the components from being damaged by the elements, debris, and foreign objects. The gear housing assembly also keeps the internal components dry and lubricated by sealing lubricant in and keeping water out.Although the gear housing assembly is a heavy-duty metal part, it is possible that time, heavy use, and the elements can cause damage. If this is found during annual routine inspections, the gearbox housing should be removed and replaced. Before making this repair, remove the fuel from the snowblower and place the machine on a flat surface. Wear protective gloves and goggles. Keep a diagram of the machine nearby for reference as the machine is disassembled to access the gear housing assembly. After removing and replacing the gear housing assembly, reassemble the snowblower, and refill the gas. This gear housing assembly is made of heavy-duty metal and sold as an individual unit. It is compatible with snow blowers and snow throwers manufactured by Craftsman.

This gear housing assembly is a genuine replacement part that is designed to protect the gears and provide mechanical support so that the gears can work properly. This housing holds the gears and protects them from damage and other risks, as well as providing lubrication for the parts. Over time, the housing can crack or become damaged and it will need to be replaced to keep the gears protected and working properly. This genuine OEM part is manufactured to exact standards by MTD and designed for use in select models of snowblowers to protect the gears during use. It is compatible with models from Yard Man, Troy-Bilt, and Cub Cadet, as well. This part is sold individually and does not include any additional parts or hardware. Be sure to disconnect the power to install any parts, including this gear housing assembly. Wear gloves for hand protection and allow the unit to cool completely before starting work. Do not use a snowblower with a faulty gear housing assembly as it can cause serious damage.

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 grease fitting attaches to the cast pivot bar on many types of garden and lawn equipment. It is made of durable metal and ensures that internal parts of the equipment are lubricated so they operate at their full potential. Sometimes a grease fitting can become worn damaged and need to be replaced.If a lawn tool no longer seems to be properly lubricated, the grease fitting could be the cause. A pair of pliers will be required to make the replacement. Clean the area near the grease fitting and then use a hex wrench to remove it from the machine. Take the new fitting and place it into the hole and tighten it before applying grease.This is a genuine OEM replacement grease fitting that is sourced directly from the manufacturer. The part is sold individually. The fitting is compatible with chipper shredders, lawn tractors, snowblowers, string trimmers, edgers, chainsaws, and lawnmowers manufactured by Yard-Man, Cub Cadet, Troy-Bilt, Craftsman, Ryobi, Murray, Broan, Yard Machines, Huskee, Montgomery Wards, Bolens, MasterCut, and MTD.

This flat washer is used to attach the idler pulley in a number of small and medium sized gasoline powered engines. These engines include snow blowers, log splitters, riding mowers, lawn tractors, and chippers. Because the idler pulley is subject to a great deal of resistance when the pulley is engaged, eventually the pulley will wear out. Should there be a squealing sound when engaging the drive, the problem is likely the idler pulley. In these cases, the pulley must be replaced. It is a good idea to replace the surrounding hardware when replacing the idler pulley; tNhis includes the flat washer, which is subject to corrosion during heavy use. To replace the idler pulley, first detach the spark plug cap. If on a mower or tractor, drop the mower deck. Remove the original pulley and install in order: replacement pulley, hex bolt, flat washer, flange nut. Apart from dropping the mower deck, the only tools required to complete this installation may be a 9/16 ratchet and combination wrench. This washer is a genuine OEM replacement part, designed to perfectly replicate the original piece. This washer is compatible with Troy-Bilt, Yard Man, Yard Machines, MTD, and Craftsman devices.

This carriage bolt is a fastener with a flat tip and a round head with threading along the shank. Also known as coach bolts and plow bolts, the item can be used with many types of lawn and garden equipment. This is a 5/16 carriage bolt that resists turning after the bolt has been tightened. Wear and tear or impact can cause damage to a carriage bolt and lead to the need to replace them.Removing a carriage bolt requires twisting the nut loose from the end of the bolt and then hitting the nut with a hammer. This will begin to move the shoulder out of the lawn equipment. Continue the process until the bolt is loose enough to remove. Installing a new carriage bolt simply requires sliding the bolt into the hole, adding the nut, and tightening things up.This carriage bolt is designed for use with Craftsman, MasterCut, Toro, Yard-Man, Cub Cadet, Montgomery Wards, Ryobi, Huskee, Troy-Bilt, MTD, and Yard Machines lawn and garden equipment. It can be used with lawnmowers, chainsaws, snowblowers, edgers, and tillers. This is a genuine OEM product sourced directly from the manufacturer as an individual component.

A star knob connects the upper and lower handles on an outdoor appliance, and if removed, the upper and lower handles are quick-released. This part is made of black heavy-duty black plastic, and the threads are made of steel. Over time, the threading can become worn out, making the connection loose, and causing the two handles to no longer stay in place. Star knobs are a straightforward repair that can be done in a matter of minutes. Just unscrew the original, damaged knob and screw in the new knob. The knob is designed to be unscrewed by hand, so there is no need for additional tools to make this repair. This genuine OEM replacement part is designed for a variety of outdoor appliances, including lawnmowers, edgers, chippers, tractors, trimmers, and cultivators. This star knob is compatible with Yard Machines, Yard-Man, Cub Cadet, Bolens, Craftsmen, and Ryobi products. This part ships individually.