142-840 MTD - Overview

This is an original replacement part sourced directly from the manufacturer. The screw is commonly found in yard equipment from Craftsman, such as lawn tractors, snow blowers, and edgers. This part is made of metal, and may be found in various locations in the machine, depending on model. Please be aware that there are different screws...Read more used in the machine. Refer to the parts diagram to be sure of ordering the correct part. You will require a wrench when replacing this item. The screw is sold as an individual replacement part.

The Throttle Box Assembly, or the Throttle Assembly, is a kit that includes the housing, handle, and hardware. It is black and constructed of steel and plastic. It can be installed onto the right hand upper handle, using a screwdriver and pliers, and is rated as Medium difficulty to install. This kit contains the parts that control the ...Read moreamount of the air and fuel entering the engine. When the part breaks (likely due to fatigue) you will no longer be able to control the engine. If nothing happens when you move the handle, that means it has become disconnected. When the part is broken it must be replaced. Check your model number to ensure you are selecting the correct replacement part.

Sourced directly from the original manufacturer, this Bell Washer is made of gold-colored metal and is sold individually, not as part of a kit or assembly. It is used to provide spacing between various part assemblies along a shaft. If you hear a strange noise coming from the shaft area, or you notice the Washer is visibly worn or damag...Read moreed, it will need to be replaced. Refer to your owners manual to determine the exact location of this part. Customers rate the difficulty of this repair as Medium.

When the brakes are applied, this brake puck presses against the brake disc in your lawn equipment to help slow down or stop it. The brake puck is in the brake assembly, which might be located near the transmission or the wheels of your machine. If you notice that the machine takes longer to stop or that there is a loud scraping or grindi...Read moreng noise when you push down on the brake, your brake puck may have worn out. If it is not replaced, you risk losing braking power, which leads to equipment damage or accidents. Before any repairs, make sure that your machine is turned off and that the spark plug is disconnected. To dissemble the brake assembly and access the brake puck, use pliers or a wrench to remove any bolts or clips holding it in place. With a screwdriver, pry the brake puck out of your machine. Since this genuine OEM part is sold individually, determine the number of pucks your machine needs by consulting your user manual.

This starter solenoid is designed to reliably engage the starter motor by allowing a low-power ignition signal to trigger the high-current starting circuit. Built for dependable performance, it helps resolve no-start or intermittent starting issues caused by a failed relay. Ideal for replacing a worn or faulty solenoid, it restores consis...Read moretent starting and reliable operation in lawn mowers, tractors, and snow-clearing equipment.

This replacement belt is sourced directly from original equipment manufacturer. It is a genuine OEM sourced item commonly used on lawn mowers and tractors. This is the the belt that drives the mower blades. Belts should be inspected periodically and be replaced if they are worn or stretched. Please note, this durable rubber belt is sold individually. To complete this repair you will need a set of wrenches.

This Washer-Lock 5/16 is a silver metal part that is sold individually and comes direct from the manufacturer. With a 5/16 Inch Interior Diameter and 1/2 Inch Outside Diameter it is used to prevent the nut from backing off and becoming loose on the pulley shaft and is attached to the drive belt pulley assembly. You will know if you need t...Read morehis because your owners manual will specify it or the model number of your machine will correspond with this part. If the part is broken due to fatigue the shafts will free spin when they should be locked together and must be replaced.

This 8-oz multi-purpose grease is an OEM replacement lubricant formulated for use in gear cases, transmissions, and chain cases on outdoor power equipment. It helps reduce friction and wear in high-load moving parts, supporting smooth operation and extending component life. Supplied in a convenient tube for easy application, it is an idea...Read morel choice for routine maintenance when servicing gearboxes, transaxles, or drive components that require consistent, heavy-duty lubrication.

This is a genuine replacement part produced by original manufacturer. It is used in various tractors from MTD, Yard Machines, Bolens, and Yard Man. Flange bearings facilitate spinning axles/shafts and reduce friction. They are a very high wear item that may require replacement often. Sold individually.

The air valve attaches to the wheel and is made of a durable material. This is a genuine MTD, Ryobi, Yard Machines, Bolens, Troy-Bilt, and Yard Man part sourced directly from the manufacturer for use in chippers, shredders, cultivators, edgers, lawn tractors, snowblowers, and trimmers. Keep in mind that this part is sold individually. Whe...Read moren replacing this item a set of pliers might be required during the installation process. It might wear out over time and will need replacing.

This OEM Extension Spring measures .62 x 6.12 inches. It is a silver, metal, individually sold, part. It can be installed with pliers and has been rated Easy to install by customers. (Note: Installation may require a lot of pull force to remove and reattach.) The spring attaches underneath the tractor on the drive belt idler pully, to t...Read morehe axle support bracket, and is used to apply tension on the drive belt idler pully. If broken or overly stretched, likely due to fatigue, you will lose your forward and reverse drive, as the belt will no longer be able to transmit power. If this happens, the part must be replaced. Refer to your owners manual and model number to ensure you are selecting the correct part.

This sealed ball bearing is used in mower deck spindle and pulley assemblies to reduce friction and support smooth rotation. Designed to fit securely in the housing, it helps extend component life and maintain consistent cutting performance. It’s a direct replacement for worn or noisy bearings during deck or pulley service.