The K&N E-3226 is a round, washable cotton gauze replacement element measuring 6 in OD, 4.625 in ID and 2.5 in tall. The manufacturer describes it with pleated media for a large filtration area, multiple woven cotton gauze layers, and a pre-oiled, washable, reusable design. Compared with a disposable paper element, it can be cleaned and re-oiled instead of replaced. The manufacturer says it is designed to increase horsepower, but no gain figure has been published, so treat that as a general claim. Buyers searching for a K&N E-3226 Screaming Eagle Super E or Super G air filter, a reusable round cotton gauze element, or a 4.625 inside diameter round air filter will find this part in the manufacturer's application notes.
Fitment is the key check before you order. The manufacturer identifies the E-3226 as the performance filter upgrade for the "Super E" and "Super G" teardrop models. Its product page is titled as a universal filter, so confirm your exact intake housing with the manufacturer before buying. Owners on user forums have reported that a K&N filter can differ in shape and mounting hardware from the factory element, so compare dimensions against your stock filter first. Re-oiling is straightforward: apply the oil evenly along the crown of each pleat, allow it to wick for about 20 minutes, then touch up light areas until the filter shows a uniform red color.
The manufacturer states that the E-3226 fits Harley-Davidson Screaming Eagle intakes that use the "Super E" and "Super G" teardrop housings. Confirm your housing style before ordering, because the manufacturer's product title describes the filter as universal.
Per the manufacturer's guidance, after cleaning, apply K&N filter oil along the crown of each pleat, let it wick for about 20 minutes, and touch up any light areas until the color is uniform. The manufacturer also notes that excess oil can drip, so let the filter sit for several minutes and wipe away any runoff before reinstalling.
The manufacturer lists one air filter and one 1 oz tube of K&N sealing grease in the package. The product carries a 1-year limited warranty.
No model-specific install sheet for the E-3226 was found, so confirm the procedure with the manufacturer. On other K&N round filters, the manufacturer's install sheets say to clean the air filter housing and sealing surface before fitting the new element, and some call for a bead of the supplied sealing grease across the bottom edge of the filter. Before you start, check the sealing surfaces and fit against your stock element so the filter seats fully and does not leak unfiltered air. Owners on user forums report that fitting can take some adapting, so dry-fit the element first.
