Parts for Craftsman 41AD778C799: Engine Assembly Parts

This particular air cleaner filter is made for gasoline-powered trimmers. If any piece of lawn equipment kicks up more dust and particulate than a lawn mower, it is a trimmer. Trimmer line, unlike a mower, does not maintain a constant angle. Because trimmers are also frequently used as edgers, they fill the air with dust and debris. While air cleaner filters are made of durable material, they eventually become clogged with yard waste to the point that they simply cannot be cleaned. Users know that this is happening when the trimmer will not run smoothly, or it cannot be started at all when no other problem is indicated. The filter is replaced by removing the back cover and discarding the old filter. Before putting it in place, work a few drops of two-cycle oil into the new filter. This will help the foam capture more airborne pollutants. Reverse the process to install the new filter. When the time comes to replace the air cleaner filter, it is imperative that the new filter be an OEM certified part that has been manufactured to the same specifications as the original.This part may be used on string trimmers, tillers, and leaf blowers by Craftsman, Ryobi, Troy-Bilt, Yard Machines, MTD, Huskee, Bolens, and Yard-Man.

This carburetor assembly is a genuine OEM replacement sourced directly from the manufacturer. This kit can be used with multiple trimmers, tillers, and various other outdoor lawn and garden gas engines. The carburetor assembly has all the parts required to fix the engine if the carburetor needs to be replaced. The carburetor is responsible for the fuel-air mixture ratio that fires the combustion process to start and run the machine. Problems with the carburetor will cause the engine not to run efficiently or not to run at all. If the engine spits and sputters when started or does not start at all, the carburetor should be tested. Testing is quickly done with a small amount of fuel. Remove the air filter and pour the fuel directly into the carburetor. Attempt to start the engine. If it starts but does not hold, the carburetor is the source of the problem and should be replaced or repaired. This carburetor assembly has everything needed to replace the carburetor. Always disconnect the spark plug and drain the fuel tank before working on the carburetor.This carburetor assembly is sold as an individual part. It is made to be compatible with trimmers, tillers, and small engines manufactured by Craftsman and MTD.

This is a genuine replacement for MTD engines in select models of lawn and garden equipment. The carburetor gasket is situated between the carburetor body and the engine to provide a secure seal to keep air from leaking out. The engine needs proper compression to run and that is ensured by gaskets and seals like this one. Over time, however, these are exposed to constant heat and pressure and can shrink or become damaged as a result. Replacing gaskets is typically considered a part of routine maintenance on most equipment. Gaskets should be replaced immediately when they fail, and inspected any time work is done on the carburetor. This OEM carburetor gasket is designed to work with more than 150 different models of blowers, trimmers, cultivators, and edgers. It can be used in products from brands like MTD, RYOBI, Bolens, Troy-Bilt, Cub Cadet, Husky, Yard Man, and Yard Machines. The gasket is made of durable metal material and is sold as a single unit. Hardware is not included with this item. Be sure to cool the engine before performing repairs and drain the fuel system to prevent leaks and spills when working on the carburetor and its components.

A carburetor may dry up after prolonged periods of inactivity, causing problems starting the engine. If this happens, the carburetor will need to be primed. Priming is adding fuel to the carburetor. Most lawnmowers have a priming bulb so you don't have to pour gas into the carburetor manually. This component is usually a small rubber button, which suctions fuel from the tank. To activate it, simply press it several times. If it fails to draw fuel, then a primer bulb may be needed. Primer bulbs can deteriorate due to old age, repeated use, and exposure to chemicals and the environment. For worry-free machine compatibility, choose this Primer Bulb & Hose Assembly made by MTD. It will work with trimmers, leaf blowers, and string trimmers from MTD, Bolens, Yard-Man, Craftsman, Ryobi, and Huskee. The assembly comes with one primer bulb and one hose. Extra fuel lines are available but sold separately.

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.

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.

This is a fuel line assembly that is made to be used in Craftsman and MTD string trimmers. It is composed of strong black and white plastic. The fuel line takes extra fuel and brings it to the fuel tank when the primer bulb has been engaged and the carburetor is primed. Time and regular use can lead to clogging or cracks in the fuel line assembly, which can lead to serious engine issues. If these problems are present, the fuel line assembly needs to be replaced.Make sure to drain any gasoline out of the fuel tank and disconnect the spark plug wire before starting the replacement process. Remove the original line from the carburetor and fuel tank before attaching the new line and using the string trimmer.This fuel line assembly is an authentic OEM replacement part that is sourced directly from the manufacturer. It is sold as an individual component. The fuel line is made for use with string trimmers manufactured by Craftsman and MTD.

This is a starter housing assembly that is often a part of tillers and string trimmers. It is made for gas-powered tools and is composed of durable metal. The starter housing assembly is responsible for helping to start the tool when a user pulls on the starter rope to engage the engine. The starter housing assembly comes with plastic housing, the starter pulley, the pull rope, and the recoil spring. It also includes the hardware needed for a replacement.The primary tool needed to replace a broken or damaged starter housing assembly is a wrench. The first step is to take the tool and place it on a flat surface before disconnecting the spark plug wire. Take out the screws that secure the starter housing assembly to the tool so it can be removed. Take the new component and secure it using the original or new screws.This starter housing assembly is sold as an individual part. The item is an authentic OEM replacement part that is directly sourced from the manufacturer. This component is created for use with tillers and string trimmers manufactured by MTD and Craftsman.

This is the clutch drum that houses the clutch that engages the power tools on more than 50 gasoline-powered lawn and landscape devices. The clutch sits inside this housing, which enables it to rotate. When the RPMs of the engine reach a certain point, the clutch expands and causes the drive shaft of the tool to engage. Among the different kinds of equipment that use this clutch housing are cultivators, edgers, and grass trimmers. The clutch, and therefore the clutch drum, receive a great deal of wear for several reasons: the vibration of the engine, the rapid up and down change of engine revolutions, and resistance met by the tools that are transferred back to the clutch and housing. Signs that the clutch is failing include a slow response to increased engine RPMs and an inability for the power tool to engage the drive shaft. In these cases, the clutch and housing should be replaced in order for the equipment to operate properly again. When choosing a clutch housing, it is important to select one that, like this one, is a genuine OEM certified part. This housing is compatible with Craftsman, Troy-Bilt, MTD, Bolens, Yard-Man, and Ryobi equipment.

Few parts fulfill as many roles on lawn mowers and other landscaping power tools than the cover screw. This screw serves to attach metal housing parts, assemblies, and shrouds to one another on equipment such as power vacuums, snow blowers, edgers, tillers, hedge trimmers, lawn tractors, leaf blowers, grass trimmers and cultivators. As these are extremely durable metal screws, they seldom fail under ordinary use. It should be noted, however, that they are most often used at connection and pressure points. Stresses at these junctions sometime loosen screws, causing them to be lost or occasionally resulting in stripped threads. It's also occasionally the case that these screws are lost during repair or routine maintenance of yard equipment because of their small size. Users should make sure to consult their owner's manuals for replacement steps and any special instructions. Because of their small size and the ease of losing them during repair work or maintenance, it's recommended to keep a supply of appropriately sized screws on hand. Most importantly, when replacing a part make sure to use a genuine OEM replacement part. They are manufactured according to the specs of the original parts and are perfect replicas.

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 is an ignition coil module assembly for use with several types of lawn and garden equipment. The module assembly is a replacement for the ignition coil, which supplies the spark voltage to the spark plug on the engine. If this piece is having issues, the machine may have trouble starting, or it might not start at all.The ignition coil module assembly could go bad for a variety of reasons. Most often, it is due to age. However, the damage could also be caused by heat buildup that occurs when the machine is in use. If this happens, the module will need to be replaced. The repair is relatively simple and owners can do it on their own. They should be sure to wear gloves, which will help to keep their hands safe.This ignition coil module assembly is a replacement part that works for select models of trimmer and tiller from Craftsman and MTD. This is a genuine OEM replacement part that has been sourced directly from the manufacturer. It is sold individually.

This is a spark plug that is used in many types of lawn and garden equipment, such as leaf blowers and tillers. It is a part of the main working of the tool and ensures the motor can run so the equipment can be used. The purpose of the spark plug is to ignite a mixture of air and fuel found inside the combustion chamber of the engine. If this part is damaged or has been lost, the engine will no longer start so the spark plug will need to be replaced.If the spark plug needs to be replaced, work gloves and basic tools may be needed. Move the tool to a level surface and make sure it is turned off. Disconnect the spark plug wire before removing it. Use a spark plug gauge to adjust the gap before installing the new part and using the tool.This part is designed to be compatible with trimmers, tillers, and leaf blowers manufactured by MTD, Ryobi, Yard-Man, and Troy-Bilt. The spark plug is sold as an individual part. It is a genuine OEM replacement component that is directly sourced from the manufacturer.

This muffler assembly is a genuine MTD part, sold individually. A muffler assembly can be used as a replacement part in a string trimmer or a leaf blower. The purpose of this genuine OEM part for one of these outdoor appliances is to reduce noise made by the motor while the blower in use.The muffler assembly in a string trimmer or a leaf blower can become damaged throughout its typical lifespan, and if this damage necessitates a complete replacement of the part, the muffler assembly should be removed and replaced with this genuine OEM replacement part as soon as possible. This component is a genuine OEM replacement part sourced directly from the manufacturer. It is sold individually. This muffler assembly is compatible with the following outdoor appliance brands: MTD, Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Yard Machines, Bolens, and Yard Man.

This is a cylinder assembly that is designed for use in various lawn and garden small engines. The cylinder assembly is a component of the starter assembly and engine. Problems with engine compression are usually the result of the cylinder assembly going bad and needing to be replaced. If the cylinder assembly is not working, the engine may not work at all. One test of the cylinder assembly is to cover the cylinder hole with a finger and pull the starter rope. If the cylinder is not working correctly, no air will come through the hole.If the cylinder assembly is not functioning, it needs to be replaced. The engine will need to be taken apart to get access to this assembly so that it can be removed and replaced. This repair requires work gloves and a basic toolset. Never work on hot engines and make sure the spark plug is removed before working on the machine.This cylinder is an authentic OEM replacement part that is directly sourced from the manufacturer. It is sold as an individual component. The cylinder assembly is designed to fit blowers, cultivators, edgers, trimmers, and vacuums manufactured by Ryobi, Troy Bilt, MTD, Yard Machines, and Bolens.

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.