Namura Top-End Rebuild Kit for 2001-14 Polaris 400cc models - 88.89mm - NA-50026-4K 2007 KTM 525 XC 2005 Yamaha YFM350FA Bruin 4x4

2005 Yamaha YFM350FA Bruin 4x4

2011 Polaris Sportsman 400 HO 4x4

1987 Yamaha YSR50

Fitments 2001 Yamaha YFM600 Grizzly 4x4

1989 Honda XR100

Namura Top-End Rebuild Kit for 2001-14 Polaris 400cc models - 88.89mm - NA-50026-4K 2007 KTM 525 XC 2005 Yamaha YFM350FA Bruin 4x4Namura 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