Bolens String Trimmer Parts

This is a gear box assembly that is a part of many types of gasoline-powered string trimmers. The gear box assembly is attached to the lower boom assembly. The purpose of the component is to spin and drive the trimmer head to cut through weeds and grass. The gear box assembly is attached to the string trimmer by two screws. This assembly comes with a trimmer head.If the gear box assembly has been damaged and needs to be replaced, a screwdriver will be needed. Place the string trimmer on a level surface and disconnect the spark plug wire for safety. Use a screwdriver to remove the screws from the old gear box assembly so it can be taken off. Use new screws to install the replacement component. Retighten the screws before use.This is an authentic OEM replacement component that is sourced directly from the manufacturer. It is sold as an individual part. The gear box assembly is designed to be used with string trimmers manufactured by MTD, Bolens, and Yard Machines.

This o-ring is a genuine OEM part sourced from the manufacturer for use in many parts of engines in lawn and garden equipment. The o-ring is a type of gasket but is not flat like a gasket. It is circular and made of rubber. It is seated in a groove on the engine part and is compressed against another part to create a seal. This seal keeps air and fluids from entering or exiting the sealed part. Like gaskets, o-rings must be periodically inspected and replaced to ensure proper engine performance.Visual inspection of o-rings will reveal nicks, indentions, cuts, or tears on the surface of the o-ring. If the rubber has warped due to excessive heat, it will not fit properly and will need to be replaced. The replacement may not require tools, depending on the location of the rubber gasket. Remove the bad o-ring and wipe both sides of the area to remove the old grease. Apply fresh grease to the o-ring before installing it to ensure a tight seal. Press the new o-ring firmly in the groove before attaching the connecting part. If the ring does not seat well or has to be stretched to fit, discard and start with a new o-ring.The o-ring is sold individually. It is designed for trimmers and tillers. It is compatible with Craftsman, MTD, Bolens, Troy-Bilt, and Cub Cadet.

The design and purpose of the O-ring is relatively self-explanatory. It is an “O” shaped ring used as a gasket in lawn and garden equipment. It is designed to sit within a groove and be compressed during assembly. It creates a perfect seal that blocks the path of liquids or gases from escaping or flowing into regions of the machine where they are not supposed to be.The O-ring may be damaged if an outdoor piece of equipment is struggling to start or run. After checking the air filter cover, removing the carburetor, and cleaning it thoroughly, the next step is to replace the O-rings, carburetor gasket, and air filter, followed by the spark plug. Regular maintenance of the carburetor and routine evaluation of the suitability of the O-ring is essential to proper mechanical maintenance.This O-ring is a genuine OEM part sourced directly from the manufacturer, and it is sold individually. The manufacturer of this product is MTD. Examples of compatible products and machines includes trimmers, tillers, weed wackers, brush cutters, and leaf blowers or leaf vacuums. It is compatible for products made by the following brands: MTD, Cub Cadet, Craftsman, and Troy-Bilt.

This is an ignition coil module assembly found in many string trimmers. Also known as an armature-magneto, the module assembly is responsible for creating current for the ignition system. It does this by sending high voltage pulses the spark plugs. If the ignition coil module assembly starts to go bad, engine performance can drop. It may also require more fuel to use the string trimmer. If the part does not provide sufficient power, the trimmer may not power on.An ignition tester can be used to determine whether the ignition coil module assembly will need to be replaced. If it is damaged or broken and needs to be replaced, make sure to wear work gloves and disconnect the spark plug wire before doing so. The starter assembly will need to be removed from the trimmer. Take out the component and replace it with a new one before reassembling all of the other parts.This is a genuine OEM replacement part that is sourced directly from the manufacturer. It is sold as an individual component. The ignition coil module assembly is made to be used with string trimmers manufactured by Bolen, Craftsman, MTD, and Yard Machines.

This is a bushing made from black plastic with a cleft down the middle to provide enough flex for easy insertion. It has a flanged design, which means it won’t easily pop out after installation, even under stress from constant vibration. The bushing’s primary purpose is to protect wires and cables from damage as they pass through a channel. As such, the material is fairly durable and does not need to be replaced under ordinary circumstances. That said, there are some situations in which it can become damaged. For one thing, it’s easy to damage while repairing the wires or cables that run through the bushing. If the bushing does need to be replaced, it requires disconnecting any cables or wires that run through the bushing. Pop out the old bushing with a rubber mallet, install the new bushing the same way, reconnect the wires, and the repair is complete. This is an OEM part sourced directly from MTD, and it is sold individually. It was initially used on snowblowers but has also been used on lawnmowers and lawn tractors.

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.

The gas-powered trimmer may not seem as if it requires a complicated clutch assembly, but this is a system within a trimmer that can fail and cause problems. A trimmer uses a centrifugal clutch that features a drive shaft inside a housing. If this clutch is failing, it will impair the trimmer's performance and even allow an engine to overheat or burn out. This replacement clutch is made of durable metal and runs in Bolens, MTD, and Yard Machine trimmers. It is compatible with a long list of models. It includes the clutch drum, clutch and hardware. This is an OEM replacement part that ships as a kit and which can be installed easily using a set of pliers and a screwdriver.

This replacement part is a short block. It is a genuine replacement part made by MTD. A short block is a part that is found inside the engine. It comprises a portion of the cylinder block below the head gasket but above the oil pan. This helps the engine run smoothly overall as well as start and stop the engine efficiently. A new short block might be needed if the user notices that the current one is damaged in any way including being bent, dented, cracked, or chipped. If the user hears unusual noises coming from inside the machine it is possible that the short block is malfunctioning. This can be due to normal wear and tear over time. If this is the case it is recommended that the user replace this part immediately. This is a genuine OEM replacement part. This short block is sold individually and is sourced directly from the manufacturer.