Namura Top-End Rebuild Kit for Polaris 50 Models - 39.48mm - NA-50015-2K 1976 Harley-Davidson Sportster - XLH 1000 2- Upper spools

2- Upper spools

2017 Yamaha SR Viper STX

2017 Yamaha YFM700 Grizzly 700 4x4 EPS

2009 Yamaha YFM700 Grizzly 700 4x4

Namura Top-End Rebuild Kit for Polaris 50 Models - 39.48mm - NA-50015-2K 1976 Harley-Davidson Sportster - XLH 1000 2- Upper spoolsNamura 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