A-SK148 Piston Liner Kit (complete set of 4) Weight: 22.00 lbs THIS KIT INCLUDES A 5 RING PISTON BUT ONLY 4 PISTON RINGS. THIS IS CORRECT, THE LOWEST GROOVE IN THE PISTON IS NO LONGER USED. Pricing and ordering information can not be shown until a dealer has been selected. Enter your zip (or postal) code and continue. Zip/Postal Code: