Insulation 181639-003
Brand: AO Smith · Fits: 21 models · Reference price: $21.99
181639-003 is a AO Smith replacement part (insulation). Our fitment data lists 21 models that use it.
When to replace this part
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.
Models that use this part
| Model | Brand | Appliance | Parts on file |
|---|---|---|---|
| PR675XBDS | State | — | 41 |
| GPSH50101 | AO Smith | — | 18 |
| ECRS50 | AO Smith | — | 17 |
| ECL40 | AO Smith | — | 16 |
| 940DKRT | Reliance | — | 15 |
| ECT120 | AO Smith | — | 15 |
| 150SOPS | Reliance | — | 14 |
| ESM20 | AO Smith | — | 14 |
| ECRT40 | AO Smith | — | 13 |
| ESM40 | AO Smith | — | 13 |
| 950DKRS | Reliance | — | 12 |
| ECRT52 | AO Smith | — | 12 |
| ECT30 | AO Smith | — | 11 |
| ECT40 | AO Smith | — | 11 |
| EPX80DXRT | State | — | 11 |
| 140SOPT | Reliance | — | 9 |
| 966DKRT | Reliance | — | 8 |
| LT50DLRT | Reliance | — | 8 |
| 640SHMS | Reliance | — | 7 |
| 130SOPT | Reliance | — | 6 |
| 630SHMS | Reliance | — | 6 |
Other parts for model PR675XBDS
If you are repairing that appliance, these are the most model-specific parts on file for the same model.
Reference price and where to compare
The reference price on file for this part is $21.99. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.
Compare 181639-003 listings on Amazon