Coupling Nut A-550
Brand: Sears · Fits: 17 models · Reference price: $2.16
A-550 is a Sears replacement part (coupling nut). Our fitment data lists 17 models that use it.
When to replace this part
Drive system (belts, pulleys, motors)
Symptom: A drum or tub that won't turn, a burning-rubber smell, or a loud thump or squeal during a cycle.
Check: With power off, turn the drum or tub by hand -- resistance or grinding points to the motor or a bearing, and a cracked, glazed, or snapped belt is visible once the cabinet is open.
Models that use this part
| Model | Brand | Appliance | Parts on file |
|---|---|---|---|
| 4019 | IBM | — | 62 |
| 7384915 | Sears | — | 36 |
| 738557300 | Sears | — | 35 |
| 738557301 | Sears | — | 32 |
| 73849255 | Sears | — | 31 |
| 738496500 | Sears | — | 30 |
| 738492231 | Sears | — | 28 |
| 7384966 | Sears | — | 28 |
| 738557000 | Sears | — | 27 |
| 73855731 | Sears | — | 25 |
| 738557800 | Sears | — | 25 |
| 7384914 | Sears | — | 23 |
| 738492550 | Sears | — | 21 |
| 73849700 | Sears | — | 21 |
| 738492310 | Sears | — | 20 |
| 73849741 | Sears | — | 19 |
| 738557801 | Sears | — | 24 |
Other parts for model 4019
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 $2.16. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.
Compare A-550 listings on Amazon