Pilot Unloader Valve 131B
Brand: Rolair · Fits: 16 models · Reference price: $87.01
131B is a Rolair replacement part (pilot unloader valve). Our fitment data lists 16 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 |
|---|---|---|---|
| 4090HK17 | Rolair | — | 17 |
| 6590HK18 | Rolair | — | 12 |
| 6590RK18 | Rolair | — | 11 |
| GD4000PV5H | Rolair | — | 10 |
| 11GR30HK30 | Rolair | — | 8 |
| 4090HMK103 | Rolair | — | 8 |
| 8422HK30 | Rolair | — | 8 |
| GD4500PV5R | Rolair | — | 7 |
| 1040HK18 | Rolair | — | 6 |
| 1040K18 | Rolair | — | 6 |
| 1040RK18 | Rolair | — | 6 |
| 2040HK18 | Rolair | — | 6 |
| 2040K18 | Rolair | — | 6 |
| 2040RK18 | Rolair | — | 6 |
| 8422K30 | Rolair | — | 6 |
| 7722HK28 | Rolair | — | 5 |
Other parts for model 4090HK17
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 $87.01. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.
Compare 131B listings on Amazon