The K&N RU-4710 is a dual-flange, oval-tapered universal clamp-on air filter for custom and aftermarket intake setups, built on K&N's cotton-gauze filter media. The manufacturer lists a 2-3/8 inch dual flange, a 6-1/4 x 3-3/4 inch base, a 3-7/16 x 4-7/16 inch top, and a 6-3/4 inch height. Because it is not sold for one vehicle, measuring your intake tube and airbox clearance matters more than matching a model year. Its pliable rubber flanges absorb vibration and allow for secure attachment, and they can stretch up to 1/16 inch to span in-between sizes.
Compared with a disposable paper element, this filter is washable and reusable, so you clean and recharge it instead of buying a new one at each interval. The manufacturer rates the overall filter efficiency at up to 99%, which supports the price for buyers who want more airflow without giving up filtration. Owners who run a mass airflow sensor should be careful with oil. Excess oil could migrate to the MAF sensor, according to user forums. Search terms this filter answers include K&N RU-4710 universal clamp-on filter, dual flange oval tapered air filter, washable oval tapered intake filter, and cotton gauze universal air filter for RC, tractor, or track builds.
The manufacturer markets this filter as a universal fit designed for a variety of applications rather than for a listed vehicle. Confirm the flange size and base and top dimensions against your intake before ordering.
Yes. The manufacturer states that K&N universal air filters are washable and reusable. Its cleaning guidance calls for K&N Air Filter Cleaner and rinsing with cool, low-pressure water, and it recommends K&N Air Filter Oil applied to the dirty side, then a 20-minute wait before reinstalling.
This is a clamp-on swap, so the main job is getting a clean seal. The manufacturer warns that failure to follow the K&N installation instructions could lead to an improper seal, so follow the instructions packed with the filter. Inspect the filter for damage before reinstalling it. Oil lightly and let the oil wick in fully, since owners on user forums report that excess oil can reach the MAF sensor and cause codes. Check the clamps once the engine has warmed up and the seal is stable.
