Namura Forged Top End Rebuild Kit for 2007 15 Yamaha WR450F 94.97mm FX 40045 CK2 2004 Arctic Cat 300 4x4 2010 John Deere Gator TH 2010 John Deere Gator TH 6x4 Diesel Product Details Product Line Wiseco Piston Rings Part Number 2421CD Fitment Type Model Size Specific Fitment Use Type Replaceent Part for Wiseco Aftermarket Piston Kit ONLY Unit Sale Qty Ring Kit for Single Piston Style CD Style Rings Size Position Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Material Color Finish Functional Length Cable Sleeve Length Cable Sleeve Travel Driver Seat Length Passenger Seat Length Driver Seat Width Passenger Seat Width Overall Seat Width Overall Seat Length Piston Cylinder Size 61 rebuilding your Top End no longer expensive and painful keeping it running in peak condition