Namura Piston Kit for 2009 14 Polaris RZR 800 Models 79.96mm NA 50081 B 2012 Yamaha SJ700 Super Jet 2003 Yamaha YFM400 Big Bear 2003 Yamaha YFM400 Big Bear 400 2x4 Product Details Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Product Line Hot Rods Bottom End Rebuild Kit Part Number CBK0187 Fitment Type Unit Sale Qty Kit Style Material Color Size Finish Position Functional Length Cable Sleeve Length Cable Sleeve Travel Driver Seat Length Passenger Seat Length Driver Seat Width Passenger Seat Width Piston Cylinder Size Piston Size Added Cylinder Stroke Volume Final Engine Displacement Exhaust Configuration Muffler Size Muffler End Tip Style Windshield Height Windshield Width Handlebar Diameter California Air Resource Board Compliance FALSE Product Disclaimer 01mm Cylinder Stroke Volume Final Engine Displacement California Emissions FALSE Product Disclaimer Fitment Note Fitment Note Fitment Note Fitment Note Fitment Note Product Details Product Line Namura Piston Kit Part Number NA 50081 B Fitment Type Model Size Specific Fitment Use Type Aftermarket Replaceent Unit Sale Qty Style Type B Standard Bore Piston Kit Position Material Finish Piston Cylinder Size 79