316904443 Parts

O-ring gasket creates a seal to prevent fluid and gas leaks in tillers and lawn equipment. Replace when cracked, brittle, or leaking. Verify fit.

Replace a cracked or missing starter guard that leaves the recoil mechanism exposed. Snaps into place in minutes with basic hand tools.

This flywheel assembly mounts on the engine crankshaft of a gas-powered line trimmer and provides the rotational mass needed to keep the engine running smoothly between power strokes. It also drives the ignition system by passing magnets over the ignition coil to generate spark. Replace this flywheel if the engine has no spark, runs erratically, or if the flywheel is cracked, has damaged magnets, or a sheared keyway.

Throttle control cable for gas line trimmers. Connects trigger to carburetor for speed control. Replace if cable is frayed, stiff, or broken.

This replacement part is an o-ring. It is a genuine replacement part made by MTD. O-rings are small but are a very important part of many appliances. These rubber rings are placed around parts that have spaces in their vicinity. This blockage created by the O-ring allows gas and air to stay within the engine or appliance. Otherwise, it might escape and cause issues during use. A new o-ring might be needed if the current ones are missing or becoming thin. This is common in many appliances. If there is a noticeable amount of air or gas escaping the appliance then it might be caused by a gap where an o-ring should be. This o-ring is sold individually. Be sure to purchase the correct amount as many appliances require more than one. This is a genuine OEM part sourced directly from the manufacturer.

Trimmer won't start or pull cord doesn't retract? This recoil starter assembly drives the engine's combustion process for hand starting your trimmer.

Ignition coil module for gas line trimmers. Mounts to engine block to generate high-voltage pulses for spark plug. Replace if cracked or damaged.

Replace a seized or damaged 25cc short block assembly in your gas trimmer. Includes cylinder, piston, and crankshaft for 2-cycle handheld engines.

If your trimmer cutting head won't spin or rotate properly, a worn drive shaft is likely the cause. Transfers power from engine to cutting head.

Fix a loose or damaged split-boom connection with this drive shaft coupler. Includes knob, coupler body, and mounting screws for secure shaft attachment.

The roller cable guide is designed for use with lawnmowers. It supports and guides cables to the lasher in the mower.This roller cable guide is a genuine OEM part sourced directly from the manufacturer and is sold individually. This roller cable guide is compatible with the following brands: Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Yard Machines, MTD, Huskee, Montgomery Wards, Bolens, and Yard-Man.

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.

Replacement screw for lawn tractors, tillers, and trimmers. Used throughout various assemblies. Replace if lost, stripped, or damaged during repairs.

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.

Replacement throttle trigger spring for gas line trimmers. Installs inside the throttle trigger assembly. Needed when original spring is broken or missing.

This is a high-quality retainer that is typically used in string trimmers. It is made of durable metal and fits in the area between the outer spool assembly and the spring on the trimmer. The purpose of the retainer is to ensure the spool stays in the correct location while the string trimmer is being used. This component can become damaged, break, or be lost and will need to be replaced in order to be sure the spool is supported and secure.If there is an issue with the string trimmer retainer, it can cause excessive noise during use. It also may prevent the trimmer from starting if other components are affected. A wrench and work gloves may be required to replace the part. Gain access to the retainer and remove it using the wrench. The new replacement part can be installed in the same place. Reassemble other parts, and the trimmer will be ready to use.This retainer is designed to fit string trimmers manufactured by Craftsman, Cub Cadet, Ryobi, Troy-Bilt, Yard Machines, Bolens, MTD, and Yard-Man. It is sold as an individual part. It is an authentic OEM replacement part that is sourced directly from the manufacturer.