The K&N RE-0810 is a round tapered (conical) universal clamp-on air filter built on cotton gauze media with a molded rubber flange. Its centered 3-inch flange, 6-inch base, 4-5/8-inch top, and 9-inch height suit custom and aftermarket intake builds. The manufacturer describes its universal filter flanges as ultra-strong and pliable, absorbing vibration for a secure attachment, and stretchable up to 1/16 inch to fit between sizes. Because the element is washable and reusable, a track or street enthusiast can clean and re-oil it instead of buying a disposable paper replacement every service interval. The manufacturer also carries a one-year limited warranty.
Because this filter is listed as universal, it is not a plug-and-play part for a specific model. Confirm that your intake tube or airbox inlet measures about 3 inches inside diameter before ordering. The manufacturer lists racing vehicles, snowmobiles, generators, and tractors among its intended applications. The RE-0810 arrives pre-oiled, which the manufacturer describes as ready for use out of the box, so it can go straight onto a clamp-on intake. Shoppers searching for a 3 inch conical air filter, a washable cotton gauze cone filter with a 9 inch length, or a replacement element for a custom cold-air intake will find this size useful.
The manufacturer lists this filter as universal rather than application-specific, so fitment depends on the intake. It is built for a 3-inch inlet. The flange can stretch up to 1/16 inch to fit between nearby sizes, but it is not a substitute for a different diameter.
Yes. The manufacturer describes the cotton gauze element as washable and reusable. The manufacturer lists a re-oiling amount of 1.92 oz (57 ml), so use that quantity when re-oiling after cleaning.
The manufacturer lists a one-year limited warranty on the RE-0810.
Installation is a clamp-on swap rather than a fabrication job. The filter arrives pre-oiled, so you can fit it to the intake tube after measuring the inlet to confirm the 3-inch flange seats properly. Check that the flange is not overstretched, since the manufacturer's stretch allowance is only up to 1/16 inch. Before the first install, wash the element according to K&N's care guidance and re-oil it with the manufacturer's listed 1.92 oz of K&N filter oil, applying the oil evenly so the media is saturated without pooling. Recheck clamp tension after the first drive, because heat cycles can loosen the fit.
