Parts for 13AJ771G031 — MTD
We found 107 parts confirmed to fit the MTD 13AJ771G031.
Same parts list as 13A1762F029 (MTD). 13AJ771G031 shares an identical confirmed parts list with 13A1762F029 (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 13AJ771G031.
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.
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 13AJ771G031: 490501M044 (Belt), 75604325 (Toro Lawn Tractor Ground Drive Idler Pulley), 17258E (Belt Cover), 7831348D0650 (Belt Cover), 7831348D (Lawn Mower Belt Cover), 17258E0637 (MTD Belt Cover), 7831348D0637 (Belt Cover), 7831348D0665 (Belt Cover), 490501Y087 (Lawn Tractor Ground Drive Belt, 5/8 x 35-11/16-in), 74704857 (Lawn Tractor Belt Keeper), 95604002 (Lawn Tractor Drive Pulley), 9561227 (MTD Lawn Tractor Mandrel Pulley), 73204280B (MTD Lawn Tractor Blade Idler Spring), 95404001A (MTD Lawn Tractor Ground Drive Belt).
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 13AJ771G031: 91804566B (MTD Lawn Tractor Transaxle), 68304138C0637 (Bracket Assembly), 93205125 (Spring), 68304250A (Lawn Mower Bracket Assembly), 73105361 (Lawn Tractor Control Cover), 73105264 (Lawn Tractor Mulch Cover), 1120350 (Toro Extension Spring), 7320814 (Toro Lawn Tractor Spring), 75004999 (Toro Spacer .380), 683042280637 (Bracket Decal Assembly), 71004593 (Screw:tt:5/1), 73204076A (MTD Yard-Man Lawn Tractor Extension Spring), 73204488 (MTD Lawn Tractor Spring), 73104057A (MTD Lawn Tractor Axle Standard Cap), 6830128B0637 (MTD Lawn Tractor Axle Weldment, Powder Black), 7260341 (MTD Lawn Tractor Spindle Cap), 71004484 (Lawn Tractor Self-Tapping Screw, 5/16-18 x 3/4-in), 73804162C (Lawn Tractor Shoulder Spacer).
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 13AJ771G031: 71004731 (Shcs-tt 5/16), 7510555D (Fuel Tank), 75704001A (Riding Lawn Mower Seat), 9610001 (Brake), OEM190180A (MTD Lawn Tractor Bagger Assembly), 95110529A (Lawn & Garden Equipment Engine Muffler), 742P04308X (Lawn Tractor 42-in Deck Xtreme 2-in-1 Blade), 91804619 (Lawn Tractor Differential), 68304163B0650 (Frame Assembly), 93804014A0637 (Kmart Lawn Tractor Spindle, Right), 7312363 (Mulch Plug), 74704645 (Toro Rod-deck 46), 634050530911 (Troybilt Lawn Tractor Wheel Assembly, 15 x 6 x 6-in (Gray)), OEM190116 (MTD Lawn Tractor Mulch Kit), 93804013 (Kmart Lawn Tractor Spindle, Right), OEM190679 (Lawn Tractor Bumper), 9410337 (Lawn Tractor Flange Bearing), 7380919A (Lawn Tractor Steering Shaft), 634050670911 (Lawn Tractor Wheel Assembly), 9170678 (MTD Lawn Tractor Brake Pad), 74705385A (Troybilt Lawn Tractor Drag Link), 9360176 (Lawn & Garden Equipment Flat Washer), 9251741 (Lawn Mower Ignition Switch), 7610202 (Lawn Tractor Brake Disc), 95704037 (Lawn Tractor Seat), 7380919B (MTD Lawn Tractor Steering Shaft).
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 13AJ771G031: 73106042 (Lawn Tractor Headlight Lens), 73104949A (Lawn Tractor Headlight Lens).
Before you buy
Match 13AJ771G031 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.
Still not sure?
Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.