Mcculloch Trimmer

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 lawnmower’s fuel line or a fuel hose brings the fuel from the tank to the carburetor. It is made of durable translucent plastic material. When pushing the primer bulb, the gas from the tank will travel through the fuel line and to the carburetor. Once there is enough fuel, any excess will go to the return line and into the tank. Fuel lines are made from sturdy rubber or plastic. Over time the fuel line can crack and begin to leak. There are few symptoms of a broken fuel hose. One of the easiest ways to tell is if the hose has visible exterior cracks. Other warning signs include fuel smell and fuel leaks. Installing a new fuel line is easy and doesn't require any tools. Detach the old fuel pipe and insert the new replacement. This MTD 791-682039 Fuel Line Assembly OEM Replacement is an original four fuel line assembly compatible with Yard Machines, Yard-man, Ryobi, and Bolens. This replacement fuel line does not include the primer bulb and fuel return line. You need to purchase these parts separately.

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 is a genuine replacement screw designed for use in select MTD engines on lawn and garden equipment. Specifically, this is an anti-rotation screw, which is used to stop the drive shaft housing from turning inside of the main housing assembly. This screw is a small part that is subject to constant vibrations, pressure, and high temperatures. It can sometimes become worn or damaged as a result or even break off entirely, which would mean that the inner housing would no longer be held in place accordingly. If this screw is damaged or lost, it needs to be replaced with a genuine OEM replacement as soon as possible. This MTD anti-rotation screw is manufactured with high-quality materials and designed for use in select trimmers from MTD, RYOBI, Yard-Man, Troy-Bilt, Murray, Cub Cadet, Yard Machines, and Bolens. This replacement will require a screwdriver. Simply remove the damaged screw, if it is not already missing, from the clutch cover assembly, and then install the new screw. It should only take a few minutes to perform the replacement. Be sure to wear gloves to protect the hands. This screw is sold individually and does not include any additional parts or hardware.

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.

Bump head trimmers use the impulse of a bump against the earth to release a measured amount of cutting twine from the spool. In actual use, this happens so quickly that an observer may not realize the user has bumped for more twine and resumed trimming. A simple but absolutely necessary piece of this procedure is the bump head spring that sits beneath the plastic bump cover and the cutting head. The spring signals the cutting head to release twine. While this system functions quite well and is the default method used by most grass trimmers, it should be noted that the spring can fail for a couple of reasons. First is simple overuse, revealed when the spring doesn't produce enough bounce back to cause the spool to release twine. This is the result of constant bumping. A second problem that arises is the stress the spring undergoes when twice spools are constantly changed. It is often the case that springs are incorrectly placed and bent in the process. When replacing the spring, it's essential to use one like this one, an OEM certified replacement that identically matches the original. This spring is compatible with Craftsman, Bolen, and Troy-Bilt trimmers.

This is a throttle trigger assembly for a string trimmer. This part is used to engage the throttle cable, which opens the carburetor to add more of a mix of fuel and air into the combustion chamber. A new throttle trigger assembly will be needed if it is damaged in a way that prevents it from operating correctly. It could be broken by physical impact or could wear out with normal extended use. If the throttle trigger is not effectively actuating the throttle cable, it will need to be replaced. Allow the trimmer plenty of time to cool down before attempting to perform any care or maintenance on the machine.This throttle trigger is made to be used with string trimmers. It's an OEM part sourced directly from the manufacturer and it is sold individually. This part is used on MTD, Craftsman, Yard Machines, McCulloch, Remington, White Outdoor, and Troy-Bilt brands.

This recoil spring is used as part of the starting mechanism for gasoline power tools such as cultivators, leaf trimmers, edgers, power vacuums, and blowers. These devices do not use battery-powered starters and thus must rely on magneto armatures and rope pulls. The recoil spring is attached to the rope pull and returns the rope to its proper place after being pulled. The coil spring receives a tremendous amount of torque again and again over time, and through aging and stretching, the spring will become inoperable and need to be replaced. Signs the recoil spring has weakened include a slackened pull from the starter rope that does not allow the engine to start or an absolutely slack pull rope. Replacing the recoil spring is a matter of detaching the pull rope and removing the starter housing. Remember to wind the pull rope around the new coil spring to allow the proper amount and length of rope. It will have to be steadied in place as the starter housing is refastened. Always use a genuine OEM replacement part, such as this one, in order to get parts that are identical to the originals. The coil is compatible with tools branded by Cub Cadet, Yard-Man, Ryobi, Bolens, MTD, and Yard Machines.

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 piston ring set is a genuine MTD part, sold individually. This piston ring set can be used as a replacement part for outdoor appliances with engines such as snowblowers, tillers, string trimmers, leaf vacuums, and leaf blowers. Piston rings prevent fuel leakages while fuel is being taken in by the engine or while the flow of fuel is being regulated. Piston rings might have to be replaced if they are damaged, which can happen with prolonged use. If a damaged piston ring is not immediately replaced, it could result in oil leakages, which can cause more severe damage to hard-to-replace internal components. Damaged piston rings should be replaced immediately upon signs or symptoms of damage. Remember to always 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 piston ring set is compatible with the following brands: MTD, Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Yard Machines, 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.