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Sullair 88290018-146 is the minimum pressure valve service kit. It is used on Sullair rotary screw air compressors. This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
Sold as one complete set. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Minimum Pressure Valve Service Kit |
| Replaces | Sullair 88290018-146 |
| Type | Minimum pressure valve service kit |
| Contents | Valve piston with seat, spring and O-ring |
| Condition | New, aftermarket |
| Stat. HS-Code | 848490 |
| Sullair Part No.(SPM Part No.) |
|---|
| 88290018-146(SPM-ACP-2746) |
Service at the separator change
Atlas Copco and Sullair service schedules call for the minimum pressure valve to be overhauled at set hours. Fitting the kit with the separator element saves a second shutdown.
Leaking or sticking valve
Hard and cracked seals stop the valve closing tight and let pressure drop or air flow back. New seals and diaphragm restore the check and pressure holding function.
Oil carry over or slow loading
A minimum pressure valve that opens too early leaves the separator tank under pressure, so oil carries over. A rebuild is far cheaper than a new valve.
Fitting tips
Vent the compressor fully, note the order of the parts as you take the valve apart, clean the bore and piston, lubricate the new seals with compressor oil and refit.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay (4 aftermarket sellers) | USD 79.88 to 116.00 | 6 Oct 2026 |
| Buy Machinery Parts | USD 126.17 | 7 Oct 2026 |
| FridayParts | USD 126.17 | 9 Oct 2026 |
| Spare Part Mart | USD 63.90 | Today |
Our price of USD 63.90 is 20% to 49% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
No. It is an aftermarket part made to fit in place of Sullair 88290018-146. It is not made by or affiliated with Sullair; the Sullair part number is used only to show what it replaces.
It fits machines that take Sullair 88290018-146. Machines change parts between serial number ranges, so check the number on your old part or in your parts manual.
It is made to the same mounting and connections as the original part. Fit new gaskets and seals where they are used, and check for leaks and correct operation before putting the machine back to work.
Yes, we ship worldwide. Shipping is calculated at checkout, and every order is covered by our 30 day money back guarantee and price beat guarantee.
Prices depend on your ZIP or postcode.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
