Parts for 316731703 — MTD

We found 44 parts confirmed to fit the MTD 316731703.

Compatibility table

Prices shown are an informational reference range only, not an offer or an Amazon price — RepairKitHub does not sell parts directly. Each part links to an Amazon search so you can compare current listings yourself.

Common failure areas on this model

The confirmed parts above group into a handful of failure areas. Here is what each points to and how to check it before you order anything.

Storage, trim and cosmetic hardware

Symptom: A cracked shelf, broken door bin, worn hinge, or missing trim piece -- cosmetic and storage wear rather than a functional breakdown.

Check: Match the physical dimensions and mounting tabs of the old part before ordering; these pieces are often model-specific even between visually similar models.

Parts in this group on 316731703: 75308326 (Line Trimmer Short Block), 75306246 (Ace Line Trimmer Engine Flywheel), 75306039 (Kmart Line Trimmer Handle Assembly), 75308203 (Line Trimmer Carburetor), 75308322 (Line Trimmer Clutch Cover Assembly), 731101695 (Line Trimmer Cover), 75308352 (Line Trimmer Drive Shaft Assembly, Upper), 75308060 (Line Trimmer Engine Cover), 75308325 (Line Trimmer Fuel Tank Assembly), 72104466 (Line Trimmer O-Ring), 72104509 (Line Trimmer O-Ring), 75306861 (Line Trimmer Throttle Trigger), 73110184A (MTD Line Trimmer Carburetor Spacer), 71006284 (Screw), 75308053 (Line Trimmer Carburetor Intake Boot Assembly), 75308351 (Line Trimmer Ignition Coil), 75308324 (Line Trimmer Muffler), 73108920A9 (Line Trimmer Oil Plug), 75112833 (MTD Line Trimmer Air Filter), 75308349 (MTD Line Trimmer Air Filter Cover), 75305007 (Line Trimmer Throttle Trigger Spring), 74605053 (Line Trimmer Cable), 75308204 (Line Trimmer Oil Fill Tube Assembly), 1755 (Screw-10-9 X), 75308503 (Line Trimmer Engine Oil Pan Assembly), 75306767 (MTD Line Trimmer Cutting Line), 75308057 (MTD Line Trimmer Carburetor), 75306848 (Line Trimmer Cutting Head Assembly), 75306849 (Line Trimmer Spool Cap), 75308350 (Line Trimmer Recoil Starter Assembly), 73108926 (MTD Line Trimmer Handlebar Clamp), 75304283 (Line Trimmer Guard Assembly), 75304282 (Line Trimmer Guard Mounting Screw), 75306790 (Throttle Housing Assembly), 791182057 (Screw).

General hardware and mounting parts

Symptom: A small mechanical or mounting part has failed, cracked, or gone missing.

Check: Compare the physical shape and mounting points to the original piece, and confirm the exact part number against your model plate before ordering.

Parts in this group on 316731703: 91404016 (Lawn & Garden Equipment Engine Flywheel Key), 79500233 (Strap), 73108433C5 (THROTTLE TRIGGER LOCK-OUT), 71204137 (Troy-Bilt Nut 3/8-24), 75306040 (Kmart Lawn & Garden Equipment Bolt), 73105405 (Pad Fuel Tank).

Door and drum seals

Symptom: A door or drum seal that has lost its grip, letting water or conditioned air escape past it.

Check: Inspect the seal for tears, flattening, or gaps, and check it against your model's part number before ordering.

Parts in this group on 316731703: 72104508 (Line Trimmer Muffler Gasket).

Controls, timers and wiring

Symptom: A cycle that doesn't advance, an unresponsive display, or the unit not starting at all.

Check: Look for burn marks or a burnt smell near the board or terminals, and check whether buttons and knobs respond -- a unit that powers on but won't cycle often traces back to this group.

Parts in this group on 316731703: 79400047A (Line Trimmer Wire Harness).

Interior lighting

Symptom: The interior light doesn't turn on when the door opens.

Check: Confirm power is reaching the socket, then check the door-activated light switch before assuming the bulb itself is at fault.

Parts in this group on 316731703: 73105509 (Line Trimmer Primer Bulb).

Before you buy

Match 316731703 exactly against the model and serial plate on the appliance itself before ordering anything — a single mismatched character can point to a different production run with different parts. Then check the part number printed or stamped on the part you are replacing against the part numbers in the table above; the printed number is the most reliable way to confirm fitment when a model has gone through multiple production runs. RepairKitHub does not sell parts directly — every part link above routes to an Amazon search for that part number so you can compare current listings and sellers yourself.

How to confirm this is your model

Check inside a door opening, on a back or side panel, or behind a removable panel or drawer for a label printed with the model and serial number. Match every character exactly, including letters and dashes at the end — appliance model numbers often have similar prefixes but different suffixes for different production runs.

Still not sure?

Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.