Parts for 31CH97SJ799 — MTD
We found 95 parts confirmed to fit the MTD 31CH97SJ799.
Same parts list as 31CH95SI799 (MTD). 31CH97SJ799 shares an identical confirmed parts list with 31CH95SI799 (MTD). That page is the canonical version of this parts list — use it if you want the primary reference, or stay here since the list below is exactly the same for 31CH97SJ799.
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 31CH97SJ799: 777D21127 (Decal), 7341124A4028 (Snowblower Rim Assembly), 6340226A4028 (Wheel Assembly, Right), 73106007 (MTD Snowblower Skid Shoe), 94604337A (Snowblower Steering Control Cable), 7363046A (Flat Washer), 7363092 (Lawn & Garden Equipment Flat Washer), 7310846C (Agri-Fab Snowblower Upper Chute (Part), 7410747 (Ball Bearing), 7100458 (Carriage Bolt), 777D21130 (Decal), 91104279 (Hex Drive Shaft), 7363082A (Lawn & Garden Equipment Flat Washer), 7130284 (MTD Lawn & Garden Equipment Chain), 73204677 (MTD Snowblower Cable Guide), 74704747 (MTD Snowblower Chute Crank Eye Bolt), 73804155 (MTD Snowblower Shear Pin), 7140135 (MTD Snowblower Woodruff Key), 71104714 (Snowblower Auger Shaft), 684041524028 (Snowblower Auger, Left (Sears Yellow)), 684041514028 (Snowblower Auger, Right (Sears Yellow)), 94604338 (Snowblower Chute Control Cable), 71104615 (Snowblower Clevis Pin), 790001810691 (Snowblower Drift Cutter), 6840090B0637 (Snowblower Impeller, 16-in), 9150118 (Snowblower Roll Pin, 5/16 x 1-3/4-in), 74604341 (Snowblower Speed Selector Cable), 91304015 (Snowblower Sprocket), 7342031 (Snowblower X-Trac Tire), 79000349A0691 (TRANS FRAME), 7410748 (Yard-Man Lawn Tractor Flange Bushing), 7103034 (Lawn & Garden Equipment Carriage Bolt), 7470973 (Rod-drive Cl).
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 31CH97SJ799: 749044890637 (MTD Snowblower Support Tubing, Right), 749046740691 (MTD Snowblower Upper Handle, Right), 6840118B0637 (Auger Bracket), 79000167A0637 (Bracket), 78404070637 (Bracket Support), 790002590691 (Frame Cover), 71004682 (Hex Screw), 9180246 (Housing Assembly, Right), 79000264A0637 (MTD Snowblower Auger Gearbox Support Bracket (Powder Black)), 7840404 (MTD Snowblower Bearing Retainer Bracket), 684042120637 (MTD Snowblower Drive Plate Bracket (Powder Black)), 75005342 (MTD Snowblower Drive Shaft Spacer), 75005343 (MTD Snowblower Drive Shaft Spacer), 7320858 (MTD Snowblower Extension Spring), 73105163 (MTD Snowblower Spacer), 71004606A (Snowblower Screw), 71104606A (Snowblower Wheel Axle), 95004020 (Spacer), 9500997 (Spacer), 7101681 (Lawn & Garden Equipment Hex Screw), 7103001 (MTD Lawn & Garden Equipment Screw), 75004821 (MTD Snowblower Shoulder Spacer).
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 31CH97SJ799: 92506107 (MTD Snowblower Heated Hand Grip and Wire Harness Assembly).
Drive system (belts, pulleys, motors)
Symptom: A drum or tub that won't turn, a burning-rubber smell, or a loud thump or squeal during a cycle.
Check: With power off, turn the drum or tub by hand -- resistance or grinding points to the motor or a bearing, and a cracked, glazed, or snapped belt is visible once the cabinet is open.
Parts in this group on 31CH97SJ799: 7560241B (MTD Snowblower Engine Double Pulley), OEM75404194A (V-Belt), 79000254A0637 (Belt Cover Bracket).
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 31CH97SJ799: 92506095 (Snowblower Headlight Socket).
Before you buy
Match 31CH97SJ799 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.