Parts for 21A154A799 — MTD
We found 27 parts confirmed to fit the MTD 21A154A799.
Compatibility table
| Part # | Part | Also fits | Reference price |
|---|---|---|---|
| 6860179 | Inner Tine Assembly | This model only | — · Amazon |
| 6860176 | Outer Tine Assembly | This model only | — · Amazon |
| 750044410637 | Powder Black | 5 models | $43.02 · Amazon |
| 74904210 | Upper Handle | 5 models | $106.27 · Amazon |
| 73105207 | Cover | 6 models | $58.07 · Amazon |
| 74804085 | Hub Motor | 6 models | $40.89 · Amazon |
| 78604268 | Motor Strap | 6 models | $29.79 · Amazon |
| 74704376A0637 | Powder Black | 6 models | $31.02 · Amazon |
| 747043750637 | Troy-Bilt Bail-Control | 7 models | $37.56 · Amazon |
| 73105208 | Troy-Bilt Cover-Motor | 7 models | $112.86 · Amazon |
| 1A2679 | Tube W/ Spac | 7 models | $13.91 · Amazon |
| 71004468 | Lawn & Garden Equipment Hex Flange Screw | 8 models | $30.41 · Amazon |
| 62504027AS | Tiller Switch Assembly | 9 models | $350.93 · Amazon |
| 73105186 | Lawn Mower Handle | 10 models | $5.79 · Amazon |
| 7491295A0637 | MTD Cultivator Handle Assembly, Lower | 10 models | $85.84 · Amazon |
| 92404008 | Motor | 10 models | $215.98 · Amazon |
| 75304067 | Tine Shield | 10 models | $99.71 · Amazon |
| 73105178 | Upper Handle | 11 models | $7.66 · Amazon |
| 72004052 | Knob-lower H | 12 models | — · Amazon |
| 7111017 | Ryobi Clevis Pin | 14 models | $35.21 · Amazon |
| 7100572 | MTD Yard-Man Lawn and Garden Equipment Carriage Bolt | 17 models | $7.77 · Amazon |
| 1625 | Nozzle Assembly | 17 models | $749.15 · Amazon |
| 4543 | Bolt, Hex Wa | 21 models | $2.99 · Amazon |
| 7100805 | Lawn Tractor Hex Bolt | 44 models | $7.86 · Amazon |
| 7260299 | MTD Lawn and Garden Equipment Push Cap (Part Number 726-0299) | 105 models | $14.66 · Amazon |
| 7360451 | Washer | 226 models | $7.86 · Amazon |
| 71204063 | Yard Machines Lawn & Garden Equipment Lock Nut, 5/16-18 | 1,010 models | $5.45 · 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.
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 21A-154A799: 6860179 (Inner Tine Assembly), 6860176 (Outer Tine Assembly), 750044410637 (Powder Black), 74804085 (Hub Motor), 78604268 (Motor Strap), 74704376A0637 (Powder Black), 747043750637 (Troy-Bilt Bail-Control), 62504027AS (Tiller Switch Assembly), 92404008 (Motor), 7111017 (Ryobi Clevis Pin), 7100572 (MTD Yard-Man Lawn and Garden Equipment Carriage Bolt), 1625 (Nozzle Assembly), 4543 (Bolt, Hex Wa), 7100805 (Lawn Tractor Hex Bolt), 7360451 (Washer), 71204063 (Yard Machines Lawn & Garden Equipment Lock Nut, 5/16-18).
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 21A-154A799: 74904210 (Upper Handle), 73105207 (Cover), 73105208 (Troy-Bilt Cover-Motor), 1A2679 (Tube W/ Spac), 71004468 (Lawn & Garden Equipment Hex Flange Screw), 73105186 (Lawn Mower Handle), 7491295A0637 (MTD Cultivator Handle Assembly, Lower), 75304067 (Tine Shield), 73105178 (Upper Handle), 72004052 (Knob-lower H), 7260299 (MTD Lawn and Garden Equipment Push Cap (Part Number 726-0299)).
Before you buy
Match 21A154A799 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.