Parts for Craftsman 316.731970: Engine Assembly Parts

Replace your gas line trimmer primer bulb to restore easy starting. If the bulb is cracked, hard, or doesn't spring back, replace it. Verify fit with your model.

M5x0.8-20 mounting screw for gas line trimmers and handheld equipment. Replaces lost, stripped, or damaged screws that secure housing and components.

Replacement screw for outdoor power equipment including lawn tractors, tillers, leaf blowers, and trimmers. Replace stripped, missing, or damaged screws.

O-ring seal for gas line trimmers. Replace when you notice fuel leaks or dried, cracked seals. Verify fit with your model number for proper sealing.

Fastener screw for tillers and lawn equipment. Secures components together for stable operation. Replace if stripped, missing, or damaged during maintenance.

Carburetor intake boot assembly for gas line trimmers. Connects carburetor to engine. Replace if cracked, torn, or causing air leaks. Genuine part.

Filters debris from engine intake air to protect internal components. Replace when clogged or engine runs rough. Verify fit with your trimmer model number.

Air cleaner assembly filters debris from your gas trimmer's engine. Replace when filter is clogged or damaged to maintain power and performance. Verify fit with your model number.

Fix your trimmer that won't start, runs rough, or stalls with this carburetor assembly. Direct replacement part restores proper fuel delivery.

This carburetor O-ring creates an airtight seal between carburetor components to prevent fuel and air leaks in small engines. It maintains proper fuel mixture and prevents contamination that could affect engine performance. Replace it when you notice fuel leaks around the carburetor, poor engine performance, or difficulty starting your equipment.

Fuel tank assembly for gas line trimmers. Installs as the main fuel reservoir. Replace if cracked, leaking, damaged, or missing cap components.

This fuel tank support is a genuine MTD part, sold individually. A fuel tank support can be used as a replacement part for outdoor appliances including tillers, string trimmers, leaf blowers, and edgers. This genuine OEM part is made out of high quality, durable materials that are specifically designed to last and hold up to possible general wear and tear over long-term usage.The fuel tank support might be subject to various forms of damage that can reduce or negate the efficacy of its function. If this occurs, the fuel tank support should be removed and replaced by this genuine OEM replacement part in order to guarantee safe continued usage of the appliance over its typical lifespan.This is a genuine OEM replacement part sourced directly from the manufacturer. It is sold individually. This fuel tank support is compatible with the following outdoor appliance brands: MTD, Craftsman, Cub Cadet, Troy-Bilt, and Yard Machines.

Throttle control cable for gas line trimmers. Installs between handle and engine to regulate speed. Replace if cable is frayed, broken, or binding.

The clutch assembly uses centrifugal force to connect the shafts and create the drive shaft motion that powers the machine. The drive shaft nests inside the other shaft, and over time these parts can wear and become damaged with regular use. Today's parts can even continue to function long past when they should, so it may not be apparent that a clutch assembly needs to be replaced until the entire unit is bad. If the engine is not performing as it should or if the drive shaft seems unstable, it may be time to replace the clutch assembly. This genuine OEM part includes everything needed for the job. This OEM clutch replacement is designed for use with various cultivators, edgers, and trimmers. It can be used on machines from MTD, RYOBI, Troy-Bilt, Bolens, Yard-Man, Cub Cadet, Murray, and Husky. This assembly includes the clutch, clutch drum, washer, and left-hand threaded screw. Always disengage the spark plug and allow the engine to cool completely before beginning repairs.

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.

This electronic component generates the spark for engine ignition in gas-powered line trimmers, mounted near the spark plug. Replace it when the trimmer won't start, has difficulty starting, or runs erratically.

Replace your gas line trimmer's clutch cover assembly if the clutch won't engage or you hear grinding noises. Moderate repair requiring basic tools.

Mounting screw for lawn tractors and tillers. Secures components and housings. Replace if stripped, rusted, missing, or damaged during maintenance.

Replacement muffler screw that secures the muffler cover in place on lawn equipment. Needed when original screw is stripped, missing, or damaged.

Oil fill plug for gas line trimmers. Seals the oil reservoir to prevent leaks and spills. Replace if cracked, broken, stripped, or missing threads.

Engine won't start or runs rough? This spark plug provides reliable ignition for small engines in trimmers, blowers, and tillers. Easy DIY replacement.