The K&N E-1080 is a washable, reusable replacement air filter built on oiled cotton media instead of disposable paper. It is listed for AMC, Jeep, and Dodge trucks from 1961 through 1990, so it suits owners of older trucks who would rather clean and re-oil one element than buy a new filter at every service. Searches for a K&N E-1080 reusable air filter or a washable AMC Jeep Dodge truck filter should match this listing.
The main purchase case is cost of ownership. The manufacturer recommends inspecting the element for dirt buildup and cleaning it roughly every 50,000 miles, depending on driving conditions, using its 99-5050 or 99-5000 service kit. Because the same element goes back in after each cleaning, the recurring expense is limited to cleaner and oil, not a new filter each time. Fit should still be checked against your specific engine and model year, since the full application chart for this part number was not verified during research.
The manufacturer suggests checking the element periodically for excessive dirt and cleaning it about every 50,000 miles, depending on driving conditions. Dusty or off-road use may call for more frequent service.
Per the manufacturer's cleaning instructions, sealing grease may be necessary in some applications, especially off-road use, to seat the element properly on its rubber base, top, or end caps.
The manufacturer's service guidance points to its 99-5050 or 99-5000 filter recharger kits, which include cleaner and filter oil.
Removing and reinstalling this element is a basic maintenance job that requires no special tools in most cases, though housings vary. Some air boxes use clips, others use screws or a clamp, so disconnect any intake tubes and note how the lid seats before lifting the filter out. Clean the element by soaking both sides in K&N filter cleaner for about ten minutes, then rinsing with low-pressure water from the clean side outward until the water runs clear. Let it air-dry completely, commonly four to six hours or overnight in humid conditions, before oiling. Apply filter oil along the crown of each pleat, touch up any light spots after about 20 minutes, and let the oil settle before reinstalling. Wipe out the housing first, and avoid overtightening plastic clamps or fasteners. Once reinstalled, start the engine and check for intake leaks.
