Photo 1 of Tupo 378cc 83mm Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Polaris Big Boss 400 Scrambler400 Sportsman400 Sport 400 Xplorer 400 Trail Blazer 400 Xpress 400L 1997-2003

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Photo 1 of Tupo 378cc 83mm Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Polaris Big Boss 400 Scrambler400 Sportsman400 Sport 400 Xplorer 400 Trail Blazer 400 Xpress 400L 1997-2003Photo 2 of Tupo 378cc 83mm Cylinder Piston Ring Gasket Top End Rebuild Kit Compatible with Polaris Big Boss 400 Scrambler400 Sportsman400 Sport 400 Xplorer 400 Trail Blazer 400 Xpress 400L 1997-2003