Namura Top-End Rebuild Kit for 1990-94 Polaris 350L Models - 81.45mm - NA-50001-6K feed-mpn-4034 1989 Polaris Trail Boss 250

1989 Polaris Trail Boss 250 4x4

2005 Honda TRX350TM FourTrax Rancher

Fits: 2008-13 Kawasaki Teryx 750

2016 Polaris Ranger 330 ETX [Midsize]

2012 Arctic Cat MUD PRO 1000

Namura Top-End Rebuild Kit for 1990-94 Polaris 350L Models - 81.45mm - NA-50001-6K feed-mpn-4034 1989 Polaris Trail Boss 250Namura Technologies Top End Rebuild Kit A Top End rebuild can help to improve the performance of your ride, keeping it running in peak condition. With the Namura complete Top End Rebuild Kit, rebuilding your Top End no longer expensive and painful Namura's Top End Kits include everything you need to get your ride operational again; pistons, a top end gasket kit and wrist pin bearings (where applicable) are all included in this convenient, time saving