Parts for 12AVC1B8799 — MTD

We found 21 parts confirmed to fit the MTD 12AVC1B8799.

Compatibility table

All 21 confirmed parts, ordered so parts that fit fewer models (more specific to this appliance) appear first.
Part #PartAlso fitsReference price
787034754044MTD Lawn Mower 21-in Deck Housing (Craftsman Red)3 models$188.52 · Amazon
93405044Lawn Mower Wheel4 models$54.32 · Amazon
93110408Lawn Mower Axle Cover, Front5 models$111.14 · Amazon
91105022Lawn Mower Axle Assembly6 models$42.49 · Amazon
94605048Lawn Mower Drive Control Cable6 models$45.76 · Amazon
73107795Cover10 models$7.74 · Amazon
74706137FRAME-GRASSB10 models$54.04 · Amazon
74904679CLawn Mower Handle, Upper10 models$68.53 · Amazon
74705362A0637Lawn Mower Grass Bag Frame12 models$54.04 · Amazon
91806038Lawn Mower Transmission Assembly12 models$231.36 · Amazon
74706137A4044Lawn Mower Grass Bag Frame Assembly13 models$54.04 · Amazon
73804502MTD Lawn & Garden Equipment Screw14 models$6.18 · Amazon
71204222Lawn Mower Square Nut27 models$9.92 · Amazon
96405024Lawn Mower Grass Bag34 models— · Amazon
73108175Lawn Mower Transmission Cover38 models$26.97 · Amazon
71004995AMTD Lawn Mower Screw63 models$7.51 · Amazon
71004998MTD Lawn Tractor Screw72 models$10.09 · Amazon
72005066AMTD Lawn Mower Lower Handle Knob91 models$7.47 · Amazon
73107203MTD Lawn Mower Rear Skirt236 models$18.18 · Amazon
72004072AYard Machines Lawn Mower Handle Knob315 models$11.23 · Amazon
9420741ACraftsman Troybilt Lawn Mower 21-in Deck Mulching Blade329 models$32.32 · Amazon

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 12AVC1B8799: 787034754044 (MTD Lawn Mower 21-in Deck Housing (Craftsman Red)), 93110408 (Lawn Mower Axle Cover, Front), 91105022 (Lawn Mower Axle Assembly), 73107795 (Cover), 74904679C (Lawn Mower Handle, Upper), 73804502 (MTD Lawn & Garden Equipment Screw), 73108175 (Lawn Mower Transmission Cover), 71004995A (MTD Lawn Mower Screw), 71004998 (MTD Lawn Tractor Screw), 72005066A (MTD Lawn Mower Lower Handle Knob), 72004072A (Yard Machines Lawn Mower Handle Knob).

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 12AVC1B8799: 93405044 (Lawn Mower Wheel), 94605048 (Lawn Mower Drive Control Cable), 74706137 (FRAME-GRASSB), 74705362A0637 (Lawn Mower Grass Bag Frame), 91806038 (Lawn Mower Transmission Assembly), 74706137A4044 (Lawn Mower Grass Bag Frame Assembly), 71204222 (Lawn Mower Square Nut), 96405024 (Lawn Mower Grass Bag), 73107203 (MTD Lawn Mower Rear Skirt), 9420741A (Craftsman Troybilt Lawn Mower 21-in Deck Mulching Blade).

Before you buy

Match 12AVC1B8799 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.