251-586-730 (1991) MTD Trimmer - Overview

This genuine drive belt is an original replacement part sourced directly from the manufacturer and is commonly used in Craftsman lawn mowers and edgers. Made from flexible rubber, it transfers power from the engine to the pulley that drives the cutting blades. Over time, the belt may become brittle or cracked due to wear and exposure, req...Read moreuiring replacement to maintain optimal performance. Measuring 3L x 35.80 inches, this belt is sold individually. A wrench may be needed for installation, depending on your equipment model.

This carriage bolt measures 5/16-18 x .75 and fastens two parts in your machine together. It has a round domed head and a square underside so the bolt does not rotate once it has been secured into place. If it has signs of deformation or wear, you will need to replace it. To unthread this bolt, you need an adjustable wrench to loosen the ...Read morenut found on the end of the bolt. You may need to apply a lubricating oil to the bolt if it is stuck. You may need to clamp down on the head of the bolt with pliers while continuing to turn the nut counterclockwise. You can then slide the carriage bolt out of its hole or tap it gently with a hammer. This bolt is a standalone product and the nut is not included. This bolt was sourced directly from its manufacturer.

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.

This is a shear bolt, also known as a snap-off bolt. This is a fastener designed to break under a specific amount of pressure and protect the machine it is installed on from that excessive load. In lawn equipment, the shear bolts typically connect the auger or blade to the drive shaft. Therefore, if the bolt snaps, the auger gets jammed a...Read morend cannot rotate so that it will not damage the rest of the unit. This bolt has a diameter of 5/16 inches, with 18 threads per inch, and is 1.5 inches long. To remove the shear bolt from your machine, you need to turn the power off first. With pliers or a wrench, grip onto the broken end of the bolt and twist it gently out of its hole. If it is stuck, you may need to coat the bolt with a penetrating oil or tap the bolt out with a mallet. Since this authentic OEM part is sold individually, refer to your instruction manual so that you can purchase the correct number of bolts for your machine.

This Edger Blade is a black, metal blade which is sold individually and comes certified from the manufacturer. Installation is rated as "Easy" and requires a socket set and wrench set. This blade attaches to the drive shaft and is used for edging the grass around driveways and walkways. If this part becomes worn/fatigued/damaged (which ma...Read morey happen after hitting the pavement) you will notice an odd vibration and poor trimming, at which time the part should be replaced.

This chute flange keeper is sourced from the original equipment manufacturer for use in snowblowers. The plastic keeper allows the snowblower chute to pivot, and secures the flange that connects the chute to the blower frame and holds it in place during use. Over time the flange keeper can break or fall off, which causes the chute to disl...Read moreodge or shift from its position. If you notice that debris is discharged in the wrong direction, and you have difficulties adjusting the chute then this is a sign that the flange keeper is no longer functioning as it should. Clean the chute flange and surrounding area before placing the new keeper on. Use a pair of pliers to align the the holes on the flange keeper with the holes on the chute and lock it in place.

This is an authentic OEM part for Craftsman lawn and garden equipment. This bushing has an internal diameter of 0.380", is made of durable black plastic, is not part of an assembly or kit, and is sold individually. The purpose of this bushing is to ensure there is a tight fit between parts. A common sign this part needs to be replaced i...Read mores if you notice any parts loosely connected or detached. This part will become worn through regular use of the machine. It is located in various areas, depending on your model. Refer to your owner's manual for the exact location. You will need a wrench and pliers to complete this repair. Customers rate this repair as Medium difficulty.

The Jamlock Nut is a 3/8-16 inch metal nut which can be installed using a socket or wrench set. It's used to secure and lock parts in place. If the part is damaged and comes loose it should be replaced. This is an authentic part authorized by the manufacturer.

This authentic OEM bearing measures 0.62 inches inside diameter, and 1.38 inches outside diameter, and is 0.436 inches thick. Silver and balck in color and sold individually, the bearing is comprised of steel and rubber. This bearing allows the input shaft to rotate freely inside the gear box, and over time can become worn or damaged. Y...Read moreou will know your bearing is damaged if it is making a growling, grinding, or squealing sound. This is an easy repair, and requires a bearing puller tool to carry out. Locate the bearing inside the gear box on each end of the input shaft, ensuring you have confirmed this is the part you need by verifying your model number or using your owners manual.

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.

This Star Knob, which may also be simply referred to as a Knob, is sourced directly from the manufacturer for use in lawn mowers and snow blowers. This part provides a quick-release for handles to fold down, and connect upper and lower handles. It is made of metal, is black, is not part of a kit or assembly, and is sold individually. Th...Read moreis part will need to be replaced if it has become cracked, worn, or damaged. The most common cause for this part needing to be replaced is worn or stripped threads no longer being able to grip. You will need a wrench or socket set and a torque wrench to complete this repair. It should be torqued to the manufacturer's recommendation. Customers rate this repair as Easy.

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 nee...Read mored this 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.