YOU ARE BIDDING ON A NIP PISTON PIN & CONNECTING ROD FOR AN ENYA.SS40-SS50 MODEL 6301 NIP. Check out my other items!Be sure to add me to your favorites list! I  HAVE ALL TYPES OF OS & ENYA C/L VENTURIS & NVA FOR SALE OR ON AUCTION.IF YOU DONT SEE IT ASK.SEE MY OTHER AUCTIONS FOR PARTS.WILL COMBINE SHIPPING (CHOICE REQUIRED!!!!)