I am selling a MERCURY QUICKSILVER GM valve, part number 52367. It is new and in the original packaging but has been opened for measurements and pictures. It will come as shown in the pictures. 5" long from end to end, the head is roughly 9/16" in diameter, the tube is roughly 5/16" in diameter. For more information, please contact a dealer in your area. ( SM / 143 B / 9071995 ) ( 4 ) Shipping cost is for the continental United States (lower 48 states) only. For shipping outside of the continental United States please inquire about shipping cost before bidding.