Kaeser 6.3669.0 is the air/oil separator element used on Kaeser ASD rotary screw compressors (ASD 32, ASD 35, ASD 37, ASD 40, ASD 47, ASD 50, ASD 57, ASD 60). This aftermarket air/oil separator element is 196 mm (7.72 in) across the flange, 160 mm across the body, 98 mm inside and 306 mm (12.05 in) high.
The separator strips the fine oil mist out of the compressed air leaving the oil tank, so the oil stays in the compressor and the air going to the line is clean. Every element is checked against the part number before it ships, and every order is covered by our
30 day money back guarantee, worldwide delivery and
price beat guarantee.
Technical properties & cross references
Specifications
| Part Type |
Compressor air/oil separator element |
| Replaces |
Kaeser 6.3669.0 |
| Fits |
Kaeser ASD 32, Kaeser ASD 35, Kaeser ASD 37, Kaeser ASD 40, Kaeser ASD 47, Kaeser ASD 50, Kaeser ASD 57, Kaeser ASD 60 |
| Flange Diameter |
196 mm (7.72 in) |
| Body Diameter |
160 mm (6 5/16") |
| Inside Diameter |
98 mm (3 27/32") |
| Height |
306 mm (12.05 in) |
| Design |
Flanged drop-in element with gaskets |
| Stat. HS-Code |
842139 |
| Country of Manufacture |
China |
Compatible equipment
Kaeser
ASD 32ASD 35ASD 37ASD 40ASD 47ASD 50ASD 57ASD 60
Price beat guarantee
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller |
Price |
Checked |
| eBay (10 aftermarket sellers) |
USD 78.33 to 102.28 |
9 Oct 2026 |
| FilterFinder Online |
USD 112.00 |
9 Oct 2026 |
| FridayParts |
USD 154.60 |
9 Oct 2026 |
| Air Compressor Services |
USD 315.00 |
9 Oct 2026 |
| Spare Part Mart |
USD 62.66 |
Today |
Our price of USD 62.66 is 20% to 80% 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.
Use cases & applications
Scheduled compressor service
Change the separator at the interval on the compressor's maintenance schedule (on most Kaeser screw compressors every 3,000 to 6,000 running hours, or every two years), and sooner if oil carry-over rises or the separator pressure drop gets high.
Breakdown spares
Keep one on the shelf so a blocked air/oil separator element does not leave a Kaeser compressor standing while parts are ordered.
Workshop and fleet stock
Hire fleets and workshops servicing several Kaeser compressors can stock the element by its part number.
Frequently asked questions
Is this a genuine Kaeser 6.3669.0?
No. It is an aftermarket air/oil separator element made to replace the Kaeser 6.3669.0. It is not made by or affiliated with Kaeser, and the part number is used only to show what it replaces.
Will it fit my compressor?
It replaces the element numbered 6.3669.0 (also written 636690) on Kaeser ASD rotary screw compressors. Check the number on the old element or in the compressor's parts list, or measure it: this one is 196 mm (7.72 in) across the flange, 160 mm across the body, 98 mm inside and 306 mm (12.05 in) high.
When should I change the separator?
Change the separator at the interval on the compressor's maintenance schedule (on most Kaeser screw compressors every 3,000 to 6,000 running hours, or every two years), and sooner if oil carry-over rises or the separator pressure drop gets high.
How do I fit it?
Stop the compressor and let all the pressure out of the oil tank. Take the cover off the separator tank, lift out the old element and clean both sealing faces. Fit the new element with new gaskets, keep the earthing staple in place against the gasket, refit the cover and tighten the bolts evenly in a cross pattern. Run the compressor and check for leaks.