Parts for AV18B1 — Thermal Zone

We found 20 parts confirmed to fit the Thermal Zone AV18B1.

Compatibility table

All 20 confirmed parts, ordered so parts that fit fewer models (more specific to this appliance) appear first.
Part #PartAlso fitsReference price
63844PAssembly, UpperThis model only$760.27 · Amazon
21546759BOLT.RDHD.SHThis model only$13.07 · Amazon
0000800010Emerson Home Electronics TransistorThis model only$2.49 · Amazon
VMZ0841Home Electronics BarrierThis model only$5.49 · Amazon
2347131Home Electronics DiodeThis model only$2.16 · Amazon
SUP1060SupportThis model only$3.10 · Amazon
257962Filter Cover4 models— · Amazon
621475MOTOR, 1/2 HP, VARIABLE SPEED4 models— · Amazon
914400INDOOR COIL ASSEMBLY5 models$2.16 · Amazon
372101ZCAP, TOP WITH INSULATION7 models— · Amazon
371840ELECTRICAL PANEL ASSEMBLY7 models— · Amazon
914729HORIZONTAL DRAIN PAN ASSEMBLY (NOT SHOWN)7 models— · Amazon
634594MOTOR CABLE, 13-WIRE (NOT SHOWN)7 models— · Amazon
257400MOTOR CABLE, 2-WIRE (NOT SHOWN)7 models— · Amazon
913870REPLACEMENT JUMPER, SET OF 57 models— · Amazon
372021ZUPPER DOOR, WITH INSULATION7 models— · Amazon
620858Transformer10 models— · Amazon
667037Blower Wheel16 models$92.70 · Amazon
197295Lawn Tractor Shift Link39 models$58.99 · Amazon
W10823722Range Dual Radiant Surface Element44 models$218.77 · 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 AV18B-1: 63844P (Assembly, Upper), 21546759 (BOLT.RDHD.SH), 0000800010 (Emerson Home Electronics Transistor), VMZ0841 (Home Electronics Barrier), 2347131 (Home Electronics Diode), 621475 (MOTOR, 1/2 HP, VARIABLE SPEED), 914400 (INDOOR COIL ASSEMBLY), 634594 (MOTOR CABLE, 13-WIRE (NOT SHOWN)), 257400 (MOTOR CABLE, 2-WIRE (NOT SHOWN)), 913870 (REPLACEMENT JUMPER, SET OF 5), 372021Z (UPPER DOOR, WITH INSULATION), 620858 (Transformer), 667037 (Blower Wheel), 197295 (Lawn Tractor Shift Link), W10823722 (Range Dual Radiant Surface Element).

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 AV18B-1: SUP1060 (Support), 257962 (Filter Cover), 372101Z (CAP, TOP WITH INSULATION), 371840 (ELECTRICAL PANEL ASSEMBLY), 914729 (HORIZONTAL DRAIN PAN ASSEMBLY (NOT SHOWN)).

Before you buy

Match AV18B1 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.