K&N Custom Harley Davidson Air Filter Assembly KNRK-3909-1 Product:Fits 1999-2012 Softail, Fat Boy, Heritage, Night Train, Rocker & Dyna With 1-5/8" Tall Filter - KNRK-3909-1 It is very important to

It is very important to service the transmission oil & filter

Replacement Filter Element

Blocked Exhaust Crossover 1

AF9202-350

K&N Custom Harley Davidson Air Filter Assembly KNRK-3909-1 Product:Fits 1999-2012 Softail, Fat Boy, Heritage, Night Train, Rocker & Dyna With 1-5/8" Tall Filter - KNRK-3909-1 It is very important toK&N Custom Harley Davidson Air Filter AssemblyFits 1999 2012 Softail, Fat Boy, Heritage, Night Train, Rocker & Dyna With 1 5 8" Tall Filter KNRK 3909 1 KNRK 3909 1 RK 3909 1 K&N's RK Series was developed to get more horsepower from your Twin Cam Harley Davidson engine. Built around the legendary K&N High Flow Air Filter, the this RK Series assembly includes an innovative powder coated billet aluminum backplate that eliminates external breathers and