Mcculloch String Trimmer Parts

A carburetor needs fuel to produce the required combustible mixture of air and gas. To get fuel, the carburetor draws the liquid directly from the fuel tank. Any excess fuel will be returned to the tank through the fuel return hose or fuel return line. In addition to providing the path, a fuel line is also responsible for preventing over-pressurization, as well as vapor lock. A fuel return line is constructed from a thick rubber material that is also fuel resistant. However, it may still become brittle and crack due to regular wear and tear. Usually, a broken fuel return hose results in symptoms such as engine misfires, loss of power, carburetor flooding, fuel leaks, and hard starting. A brand-new replacement is available here. This fuel line return is an original part from MTD. It measures 3.78 x 3.78 x 0.016 and is compatible with tillers, leaf blowers, and string trimmers made by Craftsman, Ryobi, Yard Machines, MTD, Bolens, and Yard-Man. Installation will require a screwdriver, cutters, and pliers. This fuel line return is sold individually.

A bump head knob is a part of a string trimmer. When the trimmer is tapped against the ground or any hard surface, it will let out more line. This component, which is primarily made from rubber, is also responsible for securing the spool to the trimmer head. Over time, a bump knob can break. If it is damaged, the trimmer won't release more lines. It is easy to install a brand-new bump head knob replacement. First, get a screwdriver and unscrew the old bump knob. Grab the replacement and screw it to the trimmer head. Tighten it for a secure fit. This replacement only comes with a bump head knob. It doesn't have other string trimmer replacement parts. For an efficient, compatible part replacement, choose this MTD 791-153066B Bump Head Knob. You can use it with string trimmer models made by MTD, Bolens, Yard-Mad, Yard Machines, Craftsman, Troy-Bilt, and Ryobi. It is a genuine OEM part that is sold individually.

Here is a replacement piston kit for use with handheld lawn and garden equipment engines. The pistons in an engine are essential to transfer combustion power to the various working parts of the machine. Pistons might need to be replaced if they have suffered any sort of damage or corrosion. There are several parts to the system including the piston, rings, wristpin, and circlips. The damage or wear and tear could occur in any of these different parts. When replacing a piston, it is a good idea to replace all of the parts of the kit, not just the part that is having issues. This authentic OEM piston kit is compatible with string trimmers, leaf blowers, hedge trimmers, pole pruners, and edgers. It is sold individually and is compatible with Husqvarna, Craftsman, Poulan, Poulan Pro, and Weed Eater brands. Owners buying a piston kit need to be sure they are getting the right part for their make and model.

The inner spool reel is a genuine replacement part for select models of string trimmers. The inner reel is where the string for the trimmer is wound. Once the string has been wound around the reel, it is attached to the outer spool assembly and then threaded onto the trimmer and secured in place. This part is regularly exposed to repetitive motion and ground contact, and it can become damaged with use and require a replacement. With a genuine OEM part, owners can guarantee an exact fit for their compatible machines. This inner reel is manufactured to specific standards by MTD for use on hundreds of trimmers, including those from MTD, RYOBI, Cub Cadet, Yard Man, Bolens, Yard Machines, and Troy-Bilt. This reel does not require any tools to install. Use caution when winding the trimmer line so as not to create tangles that could jam the trimmer while it is being used. Disengage the engine before working on trimmers and always wear eye and hand protection for added safety. This inner reel is made of durable plastic and sold as a single unit. Other components will need to be purchased separately.

This reel is a genuine MTD replacement part for a lawn trimmer, which is designed to cut grass, shrubs, bushes, and weeds. The function of a reel in a lawn trimmer is to collect the line in the reel housing and then unspool the line from the housing while the lawn trimmer is in use. Within the lifespan of a lawn trimmer, it is likely that the reel will suffer some damage. This might result in issues with unspooling the line, rendering the lawn trimmer impossible to use. Damage to the reel might occur as a result of general wear and tear, overuse, exposure to the elements, or collision with the ground or another object; additionally, the reel could suffer from gradual deterioration in the form of anything from small cuts and nicks to serious piercings and erosion. If the reel is damaged to the point that the lawn trimmer is unusable, the reel should be removed and replaced immediately. Remember to always wear gloves when handling, repairing, and operating outdoor equipment. This reel is compatible with the following brands: MTD and Craftsman. This part sold individually.

This fuel cap assembly fits on the lawn tractor fuel tank to keep the fuel inside and debris outside. The part is red and has a gas pump embossed on it for added identification. The top of the cap also features vent slots to allow hot air to escape and prevent heat expansion. It features a gasket under the cap to keep gas from sloshing out during operation. The fuel cap assembly is made of heavy-duty plastic that can fade and crack due to the elements. Removal and replacement are as simple as taking the old cap off and putting the new cap on. Hand-tighten to prevent gas from leaking. Never over-fill the fuel tank. Leave room for the oil additive if it is not mixed before fueling. This fuel cap assembly is a genuine OEM replacement part sourced directly from the manufacturer. It is sold as an individual unit. This fuel cap is designed for use in lawnmowers and lawn tractors manufactured by MTD, Ryobi, Troy-Bilt, Bolens, Yard-Man Yard Machines, Cub Cadet, and Murray.

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.

This fuel line assembly is created for use with string trimmers and is used to bring gasoline to the small engine in a lawn and garden tool. As the string trimmer is used, the fuel line assembly can start to break down, which may result in cracks in the fuel lines or discoloration. This can cause the fuel line to stop working the way it should, which will affect the performance of the trimmer. If the fuel lines are no longer the correct color or seem brittle, a replacement is likely needed. The line can be pinched to see if there are any visible cracks. In some cases, the primer bulb will no longer seal the way it should and will create more air than expected when priming the trimmer. Another sign that the fuel line assembly is damaged is lower power when someone uses the throttle. This is a genuine OEM part that comes directly from the manufacturer. It is a single part that is designed for use in Troy-Bilt, Craftsman, MTD, and Yard-Man string trimmers. No additional tools are needed to make the replacement.

The Fuel Pick Up Assembly is an OEM part for Husqvarna outdoor power equipment, including chainsaws, trimmers, and blowers. This assembly is responsible for drawing fuel from the tank to the carburetor, ensuring the engine receives a steady supply of fuel for optimal performance.

Over time, the fuel pick up assembly can become clogged or damaged due to debris in the fuel, exposure to ethanol-blended gasoline, or regular wear and tear. If the fuel pick up assembly is compromised, it can lead to poor engine performance or difficulty starting the equipment.

Symptoms of a bad fuel pick up assembly include:

• Engine not starting or hard to start
• Engine stalling or running inconsistently
• Reduced power or performance
•  Visible damage or clogging in the fuel line

This OEM Husqvarna part ensures proper fuel delivery and compatibility with your outdoor power equipment.

This is a replacement carburetor for Husqvarna string trimmers and is also used on some Craftsman models. It consists of an aluminum body with a bright blue choke and cherry red primer bulb. Engines rely on a mixture of fuel and air for proper operation. In a small engine, the fuel and air mix inside the carburetor. This is achieved with a series of small channels, which release a fine mist of fuel into a vortex of air. When one of these channels gets clogged, it can negatively impact engine performance. Carburetors can often be cleaned with a commercial carburetor cleaning spray, but this is sometimes not sufficient to clean a badly clogged carburetor. In this case, other measures such as hypersonic cleaners can often be effective, but they’re not always worth the cost. The alternative is replacing the entire carburetor, which can be done using this kit. This is an OEM part sourced directly from the manufacturer, and it is sold individually. A heat shield is also included with the kit.

The starter spring is what is used to create the recoil to start the engine on pull-start chainsaws, blowers, trimmers, and other lawn equipment. When the starter handle is pulled, the rope extends and pulls on the spring, causing it to tighten and then release, which creates the action to fire the motor. It may also be called the recoil spring, rewind spring, or return spring, but they all refer to the starter spring. Over time, this can become worn with use, and in some situations, it can even break completely. If the starter rope will not rewind into the housing, the spring may be twisted and need to be replaced. If so, this genuine OEM starter spring will do the job for compatible machines. This model is manufactured by Husqvarna and compatible with various Poulan and Husqvarna lawn equipment. This spring may serve as a replacement for many machines including blowers, hedge trimmers, grass trimmers, chain saws, and saws. Check the user manual for compatibility and fit, as well as part numbers. Be sure to install this according to all instructions and diagrams for safe and proper operation.

An ignition module works in conjunction with the flywheel to create an electric current. It sends the voltage to the spark plug at a precise time to ignite the fuel and air mixture in the cylinder. An ignition module does not have moving components, but exposure to heat can cause damage over time. There are several warning signs that the ignition module has failed. The most common ignition module related problem is engine sputtering. If the damage is severe, it may cause total engine start failure. This is an original Husqvarna ignition module replacement. This part is compatible with string trimmers, pole pruners, hedge trimmers, and leaf blowers from Craftsman, Poulan Pro, Weed Eater, and Poulan. It is sold individually. Other components are not included in this ignition module replacement.

The starter pawl bridge provides the resistance for the starter rope that is required to fire the engine. The bridge connects to the flywheel and is responsible for making it spin when the starter rope is pulled. Over time, the pawl can become worn with use. In the event that other starter components go bad, those can also damage the pawl. If the flywheel does not engage, it may be a faulty pawl. Always use gloves when replacing engine components and be certain to disconnect the spark plug before working on any engine parts. This OEM starter pawl bridge is manufactured to exact standards and is made by Husqvarna. It is compatible with select Husqvarna and Jonsered trimmers. This durable replacement part is made of metal and sold individually.

This recoil starter spring is what retracts the rope back into the main starter assembly. When the rope is pulled, the spring expands. The release of the rope triggers a retraction, which pulls the rope in and activates the starter, creating the chain reaction that starts the engine. This spring can get twisted or become hyperextended with regular use, in which case the only solution would be to replace the entire spring assembly. This OEM recoil starter spring is manufactured by Husqvarna, with high-quality standards in mind. It is compatible with Poulan, Weed Eater, and Husqvarna machines, including trimmers, leaf blowers, edgers, and pruners. Owners should always consult their parts diagram or owner’s manual for exact part number compatibility. This durable metal spring is designed from high-quality materials and is sold individually. The starter rope and other parts of the assembly are sold separately. Always disconnect the spark plug and wear gloves when performing engine work.

This is a genuine engine cylinder that is designed for use in select outdoor power equipment. The cylinder is the part of the engine that houses the spark plug and piston, creating the combustion chamber that the engine needs to ignite the air-fuel mixture that runs the engine. The cylinder is exposed to high heat, excessive pressure, and chemicals that can all cause wear and breakage over time. In the event that the cylinder goes bad, it needs to be replaced immediately to prevent further engine damage. This OEM cylinder is manufactured by Husqvarna. It can be used in trimmers, blowers, edgers, and pruners from the brand, as well as from Poulan and Weed Eater. The cylinder is sold as an individual unit and does not include hardware or other parts or accessories. Replacing the cylinder takes a little more effort because it requires disassembling the engine. To replace the cylinder, remove the engine shrouds, and then remove the engine from its mount. From here, the cylinder can be removed from the block and the piston can be taken out. Then, the new cylinder can have the piston installed before being bolted into place. The accessories can be replaced and then the engine can be re-mounted.

This replacement part is an piston and cylinder kit and is intended for use in a variety of lawn equipment. This is a genuine replacement part made by Husqvarna. Piston and cylinder kits are very important to many different types of machinery. This part ensures that there is a seal inside the engine that prevents leakage of certain gasses. This part also keeps oil from seeping into the combustion chamber of the engine. A new piston and cylinder kit might be needed if the equipment is unable to start or if it stops working while in use. It is common that piston and cylinder kits become stripped overtime due to normal wear and tear. Be sure the equipment is completely powered down and cooled off before attempting to repair an appliance. For more detailed instructions on how to install this specific part, see the owner's manual.This is an OEM part sourced directly from the manufacturer. It is sold individually. This replacement part is compatible with different types of lawn equipment made by Husqvarna.