The K&N RC-5106 is a universal tapered air filter from K&N Engineering's ChromeRound line, built to fit a range of aftermarket intake setups rather than one specific vehicle. Its listed dimensions are a 3-inch flange inside diameter, a 6-inch base outside diameter, a 4.5-inch top outside diameter, and an 8-inch height. Those measurements make it a candidate for universal-fit intake tubes and custom intake builds where the flange size and taper must match the existing hardware.
Because it is a universal part, confirm that the 3-inch flange and the base and top diameters match your intake tube or adapter before ordering, and check the 8-inch height against your engine bay clearance. Searches for K&N RC-5106 universal filter, ChromeRound tapered air filter 3 inch flange, and tapered cold air intake filter 8 inch height cover the most common fitment questions. Buyers replacing a stock filter should compare these dimensions with the original element.
