181-512-706601 (1991) MTD Lawn Tractor - Overview

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 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 authentic OEM hi-pro key, also called a woodruff key or key stock, is a metal component found in your lawn equipment that connects rotating parts. It is 3/16 inch wide and 5/8 inch long. It fits into a specially-shaped slot on a shaft and prevents the parts from moving or slipping out of position while your machine is running. To fin...Read mored and replace a hi-pro key on your machine, check your user guide for instructions. When removing the hi-pro key, insert a flathead screwdriver or needle-nose pliers into its groove and pry it out of its slot. Please bear in mind that this hi-pro key is sold individually.

This Flat Washer is made of durable gold-colored metal and is an authentic OEM part. It is used to spread the load under a bolt or nut and is sold individually. This part will need to be replaced if you notice any signs of cupping, corrosion, or other damage. Customers rate this repair as Easy.

This genuine component is supplied directly from the original equipment manufacturer for use with Ryobi and MTD lawn and garden equipment. It is a standard hardware which may have multiple applications, please make sure to refer to the appropriate diagrams of your model for the correct location and application of this hex washer screw. Ke...Read moreep in mind this high-quality part is made of durable metal and is sold individually.

This item is an original part from MTD, Ryobi, Yard Machines, Bolens, Yard Man, and Troy-Bilt for use in lawn tractors. The needle bearing attaches to the input shaft. You may need a wrench and a set of pliers when replacing this part. This item might break over time and will need replacing. It is made of metal and is sold individually.

This OEM 5 Pin ignition Switch is a silver, steel, individually sold part. It can be installed using a wrench and screwdriver, and has been rated as Easy to install. The part attaches to the dashboard, and is used to start and shut off the engine. If it is broken (likely due to fatigue), you will no longer be able to start or stop your ...Read moreengine and the part must be replaced. Refer to your owners manual or model number to ensure you are purchasing the correct part.

This pair of keys is supplied by the equipment manufacturer for use in lawn and outdoor power equipment. The key is made of metal and designed to prevent unauthorized use or accidental starting of the equipment. It is fitted into the ignition switch, found near the operator seat or control panel. If the key is lost, damaged, corroded or w...Read moreorn down, you will not be able to engage and start the engine. These keys come in a set of two.

This is a genuine item that is supplied by the original equipment manufacturer for use with MTD and Ryobi lawn and garden equipment. It is a standard hardware which has multiple applications, please make sure to refer to the diagrams of your model for the correct location and application of this item. Keep in mind it is made of durable metal and is sold individually.