Parts for Troy-Bilt TB425CS: Boom And Trimmer Parts

This throttle housing & trigger assembly is a genuine MTD replacement part for a handheld gas lawn trimmer. A lawn trimmer is designed to cut grass, shrubs, bushes, and weeds. The throttle housing & trigger assembly is a kit containing a black plastic throttle housing, a trigger, a spring, and the screws to bind the pieces together. The function of a throttle housing is to house the throttle for the lawn trimmer, which spins the blades at specific velocities, with a full throttle corresponding to full blade velocity. The trigger assembly consists of the trigger itself, the hammer, the disconnector, and the springs, and the function of the trigger is to activate the engine, thereby engaging the throttle.In order to replace the throttle housing, the engine must not be running and the oil should be emptied from the tank. If the throttle housing & trigger assembly is damaged to the point that the lawn trimmer is unusable, the throttle housing & trigger assembly should be removed and replaced immediately. Remember to always wear gloves when handling, repairing, and operating outdoor equipment. This throttle housing & trigger assembly is compatible with the following brands: MTD, Troy-Bilt, Yard Man, and Bolens. This part sold individually.

This spark plug is a genuine Husqvarna part, sold individually. This spark plug can be used as a replacement part for outdoor appliances with small engines such as string trimmers and leaf blowers. This spark plug provides an ignition source for the engine.The spark plug might have to be replaced at some point in the standard lifespan of the appliance if it suffers enough damage to render it useless. The spark plug might be cracked, punctured, or eroded enough to reduce its functionality. If this occurs, the spark plug should be removed and replaced with this genuine OEM replacement part before using the appliance again. Remember to wear work gloves as a safety precaution while repairing or replacing parts within an outdoor appliance. This is an OEM part sourced directly from the manufacturer. It is sold individually. This spark plug is compatible with the following outdoor appliance brands: MTD and Craftsman.

This throttle trigger is designed to open and close the throttle, or to control the speed of the engine. This part is mounted to the control handle on the equipment's shaft. With constant use, the throttle trigger may break or wear out. Use this genuine OEM throttle trigger in red to easily replace a damaged one. A screwdriver and long-nose pliers will be needed for the job. This OEM replacement throttle trigger is compatible with specific models of edgers and trimmers from Bolens, Craftsman, Cub Cadet, MTD, Ryobi, Troy-Bilt, and Yard-Man. It is sold individually.

This throttle trigger spring is an OEM part sourced directly from the manufacturer, and it is sold individually. It is manufactured by MTD. This throttle trigger spring is designed for use with edgers or trimmers. It is compatible with products from brands such as Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Murray, Yard Machines, MTD, Bolens, and Yard-Man.The throttle trigger spring part is crucial to the proper functioning of the throttle. The purpose of the throttle trigger spring is to help the throttle trigger to retract. The replacement or repair process of the throttle trigger spring should be straightforward, but a screwdriver and pliers will be necessary to complete the replacement. The user replacing the part should always wear gloves during any assembly, replacement, or installation processes. The user should also refer to the owner's manual of their equipment and any guiding diagrams that clarify the placement location. This throttle trigger spring is made out of metal.

The On/Off Switch is an OEM part for MTD outdoor power equipment. This switch is a crucial component for the safe operation of various types of lawn and garden equipment, including lawn mowers, snow blowers, and other powered tools. 

Causes of damage to the On/Off Switch often involve wear and tear from regular use, exposure to harsh outdoor conditions that can corrode or damage electrical components, or accidental impacts that can physically damage the switch.

Symptoms of a bad On/Off Switch include:

• The equipment failing to start
• The machine not stopping when the switch is turned to the off position
• Intermittent power or erratic starting and stopping

This OEM replacement part can be used on trimmers from Craftsman, Yard-Man, Cub Cadet, Bolens, Ryobi, Huskee, Troy-Bilt, MTD, Murray, and Yard Machines.

This reel spool assembly is specifically designed for use with string trimmers and comes with all necessary parts, including the trimmer line and the spool. The line itself is used when the trimmer is in use to cut grass and foliage. The spool is the component that the string is wrapped around to keep it secure while using the trimmer.If the reel spool or the line is damaged or broken, the reel spool assembly should be replaced. A wrench or a screwdriver will be needed to go through the process. When replacing the parts in the reel spool assembly, the spool cover will need to be removed. Make sure the string trimmer is on a sturdy surface and the spark plug wire has been disconnected. Place the spool assembly in the housing, feed the line, and replace the cap.This is an authentic OEM replacement part that is sourced directly from the manufacturer. It is sold as an individual component. The reel spool assembly is compatible with many string trimmers manufactured by Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Murray, Yard Machines, MTD, Bolens, and Yard-Man.

This part is a replacement handle bracket assembly. This is a genuine OEM part made by MTD and has been sourced directly from the manufacturer. It is intended to replace a defective or broken handle bracket assembly in line trimmers.This handle bracket assembly ensures that the line trimmer handlebars are securely and properly attached to the drive shaft. This part will require replacement if corroded, faulty, or broken in any way. 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 handle bracket assembly, the appropriate owner's manual and equipment diagrams should be referred to. This handle bracket assembly is a genuine OEM part made of durable metal and is sold individually. It is suitable for use with line trimmer models that have been manufactured by MTD, Craftsman, Troy-Bilt, and other brands.

A shoulder strap is a strap made to be attached to machinery in order to make the use of the machine easier, less awkward, and more comfortable for the user. It designed for use with outdoor lawn and garden equipment such as string trimmers, leaf blowers, and pole pruners. Fortunately, if a shoulder strap breaks, it will be very obvious and is easily fixed. Signs of a faulty shoulder strap include frayed edges, worn or thin fabric, or faulty attaching mechanisms holding the strap to the machine. The replacement or repair process is incredibly simple, as it requires no technical savvy or internal part replacement. Everything requiring replacement is visible from the outside of the machine.This shoulder strap is also sometimes referred to simply as a backpack harness assembly strap. The purchase of the shoulder strap does include any necessary mounting hardware needed to attach it to outdoor equipment. The shoulder strap is built to last and create a more pleasant experience while using a blower, vacuum, or pruner.This shoulder strap is a genuine OEM part sourced directly from the manufacturer, and it is sold individually. In most cases, since each strap is sold separately, if the user prefers to attach the shoulder straps in a way that resembles a backpack or harness instead of just a single shoulder strap, the purchase of two separate shoulder straps will be necessary. This particular backpack harness assembly strap is compatible for use with machines made by Craftsman, Ryobi, Troy-Bilt, Yard Machines, MTD, Bolens, and Yard-Man.

This is an anti-rotation screw. The lower handle clip on many devices, including lawn and garden equipment and tools, holds an anti-rotation screw. With use, over time, or because of other damages, the screw may be broken or stripped. When this occurs, a replacement anti-rotation screw is required to keep the machine secured together correctly for safe use.The replacement of an anti-rotation screw is quick and easy. A Torx screwdriver is recommended for replacing the part. Allow the machine to cool completely before working with it. Wear protective gloves for safety always. Remove a stripped or worn out screw if there is one present before securing in the new part to the lower handle clip.This anti-rotation screw is a genuine OEM part. It is sourced from the manufacturer. The replacement part is sold as an individual unit. The piece is made from high-quality, durable metal. It can be used in a variety of brands, including Ryobi, Troy-Bilt, MTD, Bolens, Yard-Man, Yard Machines, and Cub Cadet. The anti-rotation screw is compatible with many models of blowers, cultivators, edgers, snowblowers, trimmers, vacuums, and other tools and lawn and garden equipment.

This coupler features a split-boom design that includes the knob, coupler, and the screws required to attach the upper shaft and lower boom before using the trimmer. Because of constant exposure and potential debris impacts, the coupler can become damaged over time and with regular use. The knob and screws can also become damaged or lost, which would require replacing the entire unit with an OEM replacement like the one here. This genuine OEM drive shaft coupler is manufactured by RYOBI and designed for use with their trimmers, as well as machines from MTD, Yard Man, Yard Machines, Bolens, Troy-Bilt, and Cub Cadet. It can also be used with select models of edgers and pruners from these brands. This coupler is sold as an individual assembly with all of the pieces required to complete the installation. The shaft is made of durable metal and the knob is a sturdy plastic piece. It will require a screwdriver with a Philips head to replace this part. Always wear gloves when working on lawn and garden equipment.

This screw is a genuine MTD part, sold individually. This screw can be used as a replacement in lawnmowers, snowblowers, string trimmers, pole pruners, and pole saws. The purpose of a screw in these devices is to affix and fasten components to one another through the process of rotation and piercing through the materials. A screw might have to be replaced in the standard lifespan of an outdoor appliance if it is lost, misplaced, or damaged. Check for punctures, tears, loosening, warping, or corrosion to the metal. This damage can stem from general wear and tear or from direct impact with a falling object or a surface. It can warp the component beyond repair, in which case it must be immediately removed and replaced with this genuine OEM replacement part. Remember to wear gloves when handling, repairing, and operating outdoor equipment. This is an OEM part sourced directly from the manufacturer, and it is sold individually. This screw is compatible with the following outdoor appliance brands: MTD, Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Yard Machines, Bolens, Murray, and Yard Man.

This part is a replacement bolt. This is a genuine OEM part made by MTD and has been sourced directly from the manufacturer. This part's intended use is to replace a broken, stripped or defective bolt in outdoor power equipment.Bolts are important for holding together various components of the equipment. They are a standard piece of hardware that can become easily lost, stripped, corroded, or defective, requiring replacement. When working on or near an engine, it's important to make sure the equipment is powered off and completely cooled down before starting any repairs. For more accurate information on how and where to install this bolt, reference the appropriate owner's manual and specific equipment diagrams.This is an authentic OEM replacement part made of high-quality metal. This bolt can be used with different models of outdoor power equipment that have been manufactured by MTD, Craftsman, and other brands. Part sold individually.

This lower flexible drive shaft is made of metal and is used to operate the cutting head on garden trimmers. It is secured within the equipment's draft shaft housing. If the drive shaft is damaged, the rest of the machine will not function correctly and could become a danger to the user.Over time, the lower flexible drive shaft may start to wear out and require a replacement. There is also the risk of damage to the drive shaft due to corrosion. If there are any issues with the drive shaft, it should be replaced as soon as possible. Replacement of the part will be easier with a screwdriver.The lower flexible drive shaft is compatible with many types of machines and tools for outdoor lawn and garden use. Compatible machine types include handheld trimmers, handheld blowers, handheld snow throwers, and electric and gas trimmers. This is a genuine OEM part that is sourced directly from the manufacturer. It is sold individually.

This replacement part is a palnut. This is a genuine replacement part made by MTD. Palnuts are small but important to the overall workings of appliances. These parts work with other small pieces like screws and washers to ensure that the machine is able to work properly during use. A new palnut might be needed if the current one is missing or damaged. This can be caused by normal wear and tear with years of extended use or from a single incident that may have caused damage. It is normal for this part to endure large amounts of friction over time, and so it can become worn down with extended use. This palnut is a genuine OEM replacement part. This part is sold individually and is sourced directly from the manufacturer. "

This blade assembly is a genuine MTD part. It is also called a line cutter. It is used on handheld trimmers. The part includes two screws, two nuts, and the blade itself.The blade attaches to the shield and cuts the trimmer line while in use. It is normal for the blade to become dull and worn over time. The blade can be sharpened, but in many cases it is simpler, more effective, and safer to replace the blade instead.This blade is a genuine OEM part directly sourced from the manufacturer and is sold individually (includes the blade, screws, and nuts). It is made for compatibility with machines made by Bolens, Craftsman, Cub Cadet, McCulloch, MTD Pro, Ryobi, Troy-Bilt, Yard Machines, and Yard-Man.

This small speed spool spring is an OEM part sourced directly from the manufacturer, and it is sold individually. It is manufactured by MTD. A small speed spool spring is a small but important piece of hardware. It is designed for use with trimmers and lawnmowers. It is compatible with products from brands such as Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Murray, Yard Machines, MTD, Bolens, and Yard-Man. It is worth noting that the small speed spool spring is sold individually, but two will likely be needed in the machine.The replacement or repair process of the small speed spool spring is straight-foward, but the user replacing the part should always wear gloves during any assembly, replacement, or installation processes. The user should also refer to the owner's manual of their equipment and any guiding diagrams that clarify the placement location. This small speed spool spring is made out of metal.

This OEM reel and line assembly is manufactured for use in select string trimmers. The reel and line assembly is a single unit that holds the line on the trimmer while it is in use. This is a durable plastic piece, but over time, it may become damaged due to impact or just worn out from repetitive motion and constant ground bumping. If the line reel becomes damaged, it will not dispense line properly and could create issues. This genuine OEM line assembly is for a dual-line trimmer that takes 0.080 line and is manufactured by RYOBI. It is also compatible with select trimmers from MTD, Troy-Bilt, Yard-Man, Yard Machines, and Bolens. It is also called the spool assembly, replacement spool, or trimmer head spool. It does not require any tools to replace this part. Be sure to allow the unit to cool and disconnect the power supply before doing any repairs. If the trimmer engages while attempting to replace the wheel, it could be dangerous. Wear gloves at all times. This is sold as an individual piece and does not include hardware or additional accessories.

Also called a bump head, the string trimmer bump knob is used as a means to move the line on a trimmer forward in the spool. These pieces can start to wear out over time or become damaged when using the machine. Those who find that their trimmer is no longer properly feeding the string or cutting line may have a failed string trimmer bump knob that needs to be replaced. The OEM string trimmer bump knob replacement is sold individually, and it tends to be an easy repair. This durable knob is made from plastic and steel. It can be used for string trimmers from a range of brands including Craftsman, Ryobi, Murray, Yard Machines, Troy-Bilt, Bolens, and Yard-Man.