The K&N RU-5288 is a round, tapered universal clamp-on air filter with a red cotton gauze element and a rubber top, sized to a 3 in flange inside diameter, 6 in base outside diameter, 4.625 in top outside diameter and 3 in height. Because it is a universal design rather than a make-and-model part, fit depends on matching the intake tube's diameter. The filter arrives pre-oiled, so it can go straight onto the intake. Its main value over a disposable paper element is that the cotton gauze media is washable and reusable, so you clean and re-oil it instead of buying replacements. Cleaning intervals vary across sources, so confirm the service schedule with the manufacturer before planning maintenance around a specific mileage.
Shoppers searching for a 3 inch flange clamp-on air filter, a round tapered cotton gauze filter, or a washable reusable K&N universal element will find this part fits that profile. Compared with a stock paper filter, the appeal is reusability and a filter that is easy to service on a track car, project build or off-road rig. Check the flange diameter and intake tube length before you buy, and confirm the 3 in flange works with your existing clamps and coupler. Also review the California Prop 65 warning and availability before ordering, since sources disagree on some compliance and stock details.
No. It is a universal clamp-on filter, so compatibility depends on the intake tube matching the listed 3 in flange inside diameter. Confirm that measurement on your intake before ordering.
No. Oil is included and the filter is listed as pre-oiled. When it is time to re-oil after cleaning, the listed re-oil amount is 0.59 oz (18 ml).
Details vary across sources, so confirm the cleaning interval with the manufacturer before relying on a specific mileage.
This is a clamp-on swap rather than a bracketed installation. The rubber flange slides onto the intake tube and is held in place by a clamp, so basic hand tools are generally all you need. Measure the intake tube before purchase, because the 3 in flange must match. When you clean the element, allow it to dry completely before re-oiling, and use the 0.59 oz (18 ml) re-oil quantity listed in the specifications. Apply the oil evenly so the media is saturated without excess pooling.
