See more: Air Cleaner Accessories
Fits all 1999-2017 Twin Cam and all 2017 to present Milwaukee Eight engines, Next Level breather kit with black vent hose adapters
All Twin Cam and Milwaukee Eight engines have a crankcase breather system that routes over-pressure and eventually oil through the cylinder heads into the throttle body. That is with the stock air cleaner and almost any aftermarket and performance air cleaner. This kit allows you to route this pressure and the eventual oil into a separate canister or breather filter. Kits include a pair of special breather bolts with washers and O-rings, as well as two adapters with 1/8" NPT barb fittings for use with common 5/16" hose. Hose, filter and canister not included.