Parts for STS21AAST20 — Audiovox
We found 24 parts confirmed to fit the Audiovox STS21AAST20.
Compatibility table
| Part # | Part | Also fits | Reference price |
|---|---|---|---|
| 100090012002 | 18,COOLING FAN | This model only | — · Amazon |
| GFXP1308FRR | Accessory Handle | This model only | $392.72 · Amazon |
| 500SQC102000 | Cabinet Speaker | This model only | — · Amazon |
| 900885002 | Cablethrot | This model only | $2.65 · Amazon |
| DE9402262C | Door Assembly | This model only | $112.55 · Amazon |
| 500ST2101XXX | Front Panel | This model only | — · Amazon |
| 02927061 | Home Electronics Capacitor | This model only | $3.99 · Amazon |
| 96405007 | Lawn Mower Grass Bag | This model only | $57.01 · Amazon |
| IBSTS21AAST | Owner's Manual | This model only | — · Amazon |
| 118000213000 | PUSH TERMINAL BOARD | This model only | — · Amazon |
| 509299973001 | Speaker Mesh | This model only | — · Amazon |
| DE3400069S | Switch | This model only | $103.44 · Amazon |
| 600ST2224XXX | Top Panel | This model only | — · Amazon |
| 510ST2107XXX | Volume Knob | This model only | — · Amazon |
| 124006310000 | FS603,FUSE 0.630A | 2 models | — · Amazon |
| 033STS21A108 | LOAD MOTOR PCB | 2 models | — · Amazon |
| 124205410001 | RTM601,THERMISTOR | 2 models | — · Amazon |
| 93405196 | Lawn Mower Drive Wheel | 28 models | $95.56 · Amazon |
| G3540300W1 | Gas Grill Emitter Tray | 31 models | $23.00 · Amazon |
| 179843 | Elliptical Stabilizer Wheel | 35 models | $18.99 · Amazon |
| 404933X479 | Snowblower Scraper Blade | 39 models | $29.44 · Amazon |
| DC9715249A | Dryer Inlet Hose Connector | 42 models | $44.11 · Amazon |
| DC6230314V | Washer Cold Water Inlet Valve | 45 models | $95.67 · Amazon |
| EAG32629302 | Range Terminal Block | 105 models | $94.14 · 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 STS21AAST-20: 100090012002 (18,COOLING FAN), 900885002 (Cablethrot), DE9402262C (Door Assembly), 96405007 (Lawn Mower Grass Bag), IBSTS21AAST (Owner's Manual), 118000213000 (PUSH TERMINAL BOARD), 509299973001 (Speaker Mesh), DE3400069S (Switch), 124006310000 (FS603,FUSE 0.630A), 033STS21A108 (LOAD MOTOR PCB), 93405196 (Lawn Mower Drive Wheel), 179843 (Elliptical Stabilizer Wheel), 404933X479 (Snowblower Scraper Blade).
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 STS21AAST-20: GFXP1308FRR (Accessory Handle), 500SQC102000 (Cabinet Speaker), 500ST2101XXX (Front Panel), 600ST2224XXX (Top Panel), 510ST2107XXX (Volume Knob), G3540300W1 (Gas Grill Emitter Tray), DC9715249A (Dryer Inlet Hose Connector).
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 STS21AAST-20: 02927061 (Home Electronics Capacitor), EAG32629302 (Range Terminal Block).
Heat control (thermostats, fuses, heating element)
Symptom: The appliance runs but heats or cools inconsistently, or shuts off partway through a cycle.
Check: With the appliance unplugged, check continuity across the part with a multimeter -- no continuity means it has failed.
Parts in this group on STS21AAST-20: 124205410001 (RTM601,THERMISTOR).
Water inlet and drainage
Symptom: The unit isn't getting water when it should, or isn't draining or pumping it out when it should.
Check: Check the valve or pump for a clog or jammed object, and confirm the hose isn't kinked, restricted, or routed higher than the unit allows.
Parts in this group on STS21AAST-20: DC6230314V (Washer Cold Water Inlet Valve).
Before you buy
Match STS21AAST20 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.