The K&N HD-1614 is a unique-shape replacement air filter for Harley-Davidson big twin motorcycles, built on K&N's oiled cotton gauze high-flow design. Its layered woven cotton gauze sits in a pleated media pack, and the manufacturer cross-references it to Harley-Davidson part 29400045. Because it is washable and reusable, you buy it once instead of repeatedly replacing a disposable paper element, which makes it a practical upgrade for riders who service their own bikes. The manufacturer also describes an application-specific base seal and sealing bead for a precise fit.
Fitment is the first thing to confirm. The manufacturer's pages do not agree: one lists the FLHRC Road King for 2014-2017, and another lists the FLHR Road King 103 CI for 2014-2016. Verify your model year and engine against OEM 29400045 before ordering. Long-tail searches for a washable Harley big twin air filter, Road King high-flow air filter, or K&N 29400045 replacement will lead to this part, and the stock paper element cannot match its reuse value over time.
The manufacturer's pages list different applications. One lists the FLHRC Road King for 2014-2017, and another lists the FLHR Road King 103 CI for 2014-2016. Confirm your model year and engine against OEM 29400045 with the manufacturer before ordering.
The manufacturer cross-references the HD-1614 to Harley-Davidson part 29400045 and describes an application-specific base seal and sealing bead intended to seal the airbox properly.
Yes. The manufacturer describes the filter as washable, reusable, and pre-oiled, and lists a re-oiling amount of 0.23 oz (7 ml). Confirm the cleaning procedure and service interval with the manufacturer.
The manufacturer rates installation at 5-10 minutes and lists a screwdriver as the only typically required tool, with an installation PDF available. Since the base seal and sealing bead are application-specific, check that the seal sits fully around the filter opening before closing the airbox. The manufacturer's installation sheets for other K&N models stress a clean, dry sealing surface, so wipe out the airbox lid and base before seating the new element.
