Parts for 13RX91AT056 — MTD

We found 66 parts confirmed to fit the MTD 13RX91AT056.

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 13RX91AT056: 777D14029 (Lbl-ltx 1045), 64704163 (Rod Keeper Assembly), 91804889A (Spindle Assembly), 777X44159 (Label Parts Line), 634044060911 (Lawn Mower Wheel Assembly), 92504094 (Main Harness), 94604617 (Throttle Cable), 91804516A (Lawn Tractor Driven Mandrel Assembly), 9180411A (Spindle Assembly), 751K4723702 (Dual Clamp), 72004140B (Grip), 75704131 (High Back Seat), 93804292 (Lawn Tractor Spindle), 638040270637 (Lawn Tractor Spindle, Left), 638040210637 (Lawn Tractor Spindle, Right), 783044154021 (Skirt-rh 50"), 73504137 (Footpad-lh), 93804291 (Lawn Tractor Driven Mandrel Shaft), 783061810637 (Powder Black), 98304488 (Shaft Assembly), 95104311 (TANK ASM-FUE), 78701520 (Timing Plate), 78306043 (Brkt-strg Su), 783061330637 (Brkt-trnmsn), 63404405 (Craftsman Rim Assembly), 74705067A (Kmart Lawn Tractor Deck Lift Rod), 74705052A (Lawn Tractor Blade Brake Rod), 638040280637 (Lawn Tractor Spindle, Left), 72004139B (Troy-Bilt Grip-Lift Ha), 94604618C (Cable-deck Engage), 9252054A (Lawn Tractor Ignition Key).

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 13RX91AT056: 98304468B (Lawn Tractor 46-in Deck Housing), 73204605 (Torsion Spring), 783056270637 (Lawn Tractor Deck Lift Bracket), 63804021 (Steering Axle), 78306632 (Bracket), 73804316A (Bolt Shield), 78305823 (Chute Bracket), 7501096 (Kmart Lawn Mower Spacer), 78306448 (Lawn Tractor Seat Switch Retainer Clip), 73204624 (MTD Lawn Mower Extension Spring), 98304561 (MTD Lawn Tractor 50-in Deck Housing), 71004823 (Screw), 73204727 (Lawn Tractor Torsion Spring), 73204652 (Lawn Tractor Deck Release Rod Spring), 78306074A (Lawn Tractor Deflector Shield Bracket).

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 13RX91AT056: 9540266A (Lawn Tractor Blade Drive Belt), 75604372 (Deck Pulley), 78305802 (Lawn Tractor Blade Idler Pulley Arm), 91804512B (Lawn Tractor Mandrel and Pulley Assembly), 75604356 (Kmart Lawn Tractor Mandrel Pulley), 75604280A (Lawn Mower Idler Pulley), 777I23150 (Lawn Tractor Belt Decal), 73106291A (Lawn Tractor Pulley Cover), 783062600637 (Gauge Support Belt), 74705171A (Lawn Tractor Belt Keeper), 78306643 (Troy-Bilt Brkt-Idler S), 95404167 (Lawn Tractor Blade Timing Belt), 91804865A (MTD Lawn Tractor Mandrel and Pulley Assembly), 95404060B (Lawn Tractor Deck Belt).

Before you buy

Match 13RX91AT056 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.