Parts for 31AM63EF729 — MTD

We found 145 parts confirmed to fit the MTD 31AM63EF729.

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.

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 31AM63EF729: 7470697 (Snowblower Chute Crank Eye Bolt), 74904191A0662 (Hndl:upr:lh), 74904191A0689 (Hndl:upr:lh), 68404057C (IMPLR-3 BLAD), 79000311C (LEVER-SHIFT), 92604012 (Lawn & Garden Equipment Nut), 9360287 (Lawn & Garden Equipment Washer), 73604161 (MTD Lawn and Garden Equipment Washer), 74104098 (MTD Snowblower Ball Bearing), 7251757 (MTD Snowblower Heated Hand Grip and Harness), 790000910650 (Skid Shoe), 74704784 (Snowblower Guide Cable), 63404143A (Wheel-comp 1), 91804171C (Craftsman Snowblower Gearbox), 74904191A0729 (Hndl:upr:lh), 68404057C0638 (IMPLR-3 BLAD), 68404057C4033 (IMPLR-3 BLAD), 63104131B (MTD Snowblower Chute, Lower), 73804164A (MTD Snowblower Friction Disc Pin), 72504393 (MTD Snowblower Heated Hand Grip Switch), 790000910691 (MTD Snowblower Skid Shoe (Black Jack)), 73504099 (MTD Snowblower Transmission Frame Plug), 73504100 (MTD Snowblower Transmission Frame Plug), 63404141 (MTD Snowblower Wheel Assembly), 790000914033 (Skid Shoe), 71004063 (Snowblower Carriage Bolt), 73104426A (Snowblower Chute Deflector), 68404105D (Snowblower Control Lever), 63404146 (Snowblower Drive Wheel, Right), 79000313A0637 (Snowblower Lever).

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 31AM63EF729: 7845594 (Bracket), 79000316 (Frame Cover), 74904191A0709 (Handle, Upper Right), 93105348A (MTD Snowblower Handle Panel Assembly (Gray)), 68404264A (Snowblower Auger Housing), 68404268A4044 (Snowblower Auger Housing), 68404264 (Snowblower Auger Housing, 26-in), 790003410637 (Snowblower Chute Control Rod Bracket), 72004102 (Snowblower Chute Crank Knob), 68404311A0637 (Snowblower Chute Crank Support Bracket), 9350199A (Snowblower Handle Lever Bumper), 73804194 (Snowblower Shoulder Screw), 74904141A (Upper Handle), 74904141A0637 (Upper Handle), 79000087A0638 (Bearing Housing), 684043110637 (Chute Support Bracket), 7101681 (Lawn & Garden Equipment Hex Screw), 78455940637 (MTD Snowblower Cable Bracket), 79000209A (MTD Snowblower Handle Panel), 74904191A (MTD Snowblower Handle, Left Upper), 73804367 (MTD Snowblower Shoulder Screw), 91704230B (MTD Snowblower Wheel Axle Gear), 93104181A (Panel), 7480190 (Sears Spacer), 68404268 (Snowblower Auger Housing), 79000289A0637 (Snowblower Cover Plate).

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 31AM63EF729: 73105319 (MTD Snowblower Headlight Lens), 777X41803 (Snowblower Headlight Lens Decal), 777X41805 (Snowblower Headlight Lens Decal).

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 31AM63EF729: 72504314 (Snowblower Wire Harness).

Before you buy

Match 31AM63EF729 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.

Other models with this exact parts list

Each model below is confirmed to share the identical compatible-parts list with this one.

• 31A-62EE729 — 98 parts
• 31AH6ZFH729 — 21 parts
• 31AH6ZLG704 — 97 parts
• 31AM62KE704 — 102 parts
• 31AM63LF704 — 108 parts
• 31AS6DEF700 — 95 parts
• 31AS6WEG700 — 123 parts

Still not sure?

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