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CompAir A11175274 is the thermostatic element and spring that set the oil temperature by sending oil through or around the oil cooler. It is used on CompAir 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 unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Thermostatic Valve Kit |
| Replaces | CompAir A11175274 |
| Type | Wax thermostatic element in a stainless steel sleeve, with return spring |
| Supplied as | Element and spring (kit) |
| Also written as | 11175274 |
| Condition | New, aftermarket |
| Stat. HS-Code | 848180 |
| CompAir Part No.(SPM Part No.) |
|---|
| A11175274(SPM-ACP-2769) |
Compressor running hot
If the oil temperature climbs or the compressor trips on high temperature with a clean cooler and the right oil level, a thermostatic element stuck closed is a common cause: oil bypasses the cooler.
Water in the oil
An element stuck open sends all the oil through the cooler, so the compressor runs too cold, condensate forms in the oil and it turns milky. A new element holds the oil at its working temperature.
Oil service
The thermostatic element is a wear part. Many service plans change it with the oil, oil filter and separator, especially on machines that have run hot.
Fitting tips
Isolate and vent the compressor first, let it cool, then remove the valve cover. Fit the new element and spring the same way round as the old ones and use a new cover O-ring.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay (5 aftermarket sellers) | USD 37.98 to 39.48 | 6 Oct 2026 |
| Spare Part Mart | USD 30.38 | Today |
Our price of USD 30.38 is 20% to 23% 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 CompAir A11175274. It is not made by or affiliated with CompAir; the CompAir part number is used only to show what it replaces.
It fits machines that take CompAir A11175274. 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 postcode.
In USD for the quantity selected. The exact cost is confirmed at checkout.
