The K&N 63-1583 is a cold air intake for the 6.7L L6 Cummins diesel in 2019-2024 Ram 2500 and 3500 trucks. It pairs a roto-molded HDPE intake tube with an enclosed air box that shields the filter from engine-bay heat, plus a washable, oiled cotton High-Flow filter. The manufacturer says the system reduces restriction for a guaranteed gain in horsepower and torque, and its estimate is about 15 hp at 2550 RPM. Owners on user forums report mixed results, with some noticing throttle response and intake sound and others seeing little measurable change, so compare it against the filter you already run before paying the premium. Look for it if you want a filter that stays in service up to 100,000 highway miles, not a pure power upgrade.
Shoppers searching for a 2019-2024 Ram 2500 6.7 Cummins cold air intake or a 2019-2024 Ram 3500 Aircharger upgrade should confirm their model year and engine first. The manufacturer's install sheet calls for basic hand tools and a job of roughly an hour, which suits a driveway install. Disconnect the negative battery cable before you start, since that clears stored radio and electronic settings. Move the two air sensors into the K&N adapters, and keep the factory intake, because the manufacturer advises against discarding it. Note that the system is not legal for sale or use in California on pollution-controlled vehicles.
The manufacturer lists fitment for 2019-2024 Ram 2500 and 3500 trucks with the L6-6.7L diesel. The "19-20" in some product titles does not match that range, so confirm your model year and engine before ordering.
The manufacturer states the intake is not legal for sale or use in California on any pollution-controlled motor vehicle.
The manufacturer says the washable filter needs cleaning about every 100,000 miles under normal highway driving conditions.
The manufacturer's install sheet has you disconnect the two air sensors and reinstall them through the K&N sensor adapters. It also recommends keeping the factory air intake rather than discarding it.
Per the manufacturer's install sheet, the job calls for a flat-blade screwdriver, ratchet and extension, 8mm and 10mm sockets, 2.5mm, 3mm and 4mm Allen keys, and a T15 Torx bit. Start by disconnecting the negative battery cable and noting any radio anti-theft codes. The sheet has you remove the push clips on the upper core support cover, then the factory air housing and intake tube. Use only the hardware included in the kit, because the manufacturer warns that skipping it can damage the intake tube, throttle body, or engine.
