Fits: Mercury Mariner 9.9 (323cc) Bigfoot - USA ser. #s 0G760300-0T979999 4-Stroke Mercury Mariner 9.9 (323cc) Bigfoot - BEL ser. #s 0P075166-0P325499 4-Stroke Mercury Mariner 15 (323cc) Bigfoot 1998 USA ser. #s 0G590000 & Up 4-Stroke Mercury Mariner 15 (323cc) Bigfoot - BEL ser. #s 9973100 & Up 4-Stroke Mercury Mariner 15 XD, Big Foot 1997-98 BEL ser. #s 9927000 & Up 2-Stroke Mercury Mariner 18, 18XD 1980-85 USA ser. #s 5837437 & Up 2-Stroke Mercury Mariner 18, 18XD 1980-83 AUS ser. #s 8071973 & Up 2-Stroke Mercury Mariner 18, 18XD 1980-85 BEL ser. #s 9308306 & Up 2-Stroke Mercury Mariner 20, 20XD 1986-87 USA ser. #s 6443973-0T800749 2-Stroke Mercury Mariner 20, 20XD 1986-87 BEL ser. #s 9415101 & Up 2-Stroke Mercury Mariner 20, 20XD 1986-87 CAN ser. #s 7209533 & Up 2-Stroke Mercury Mariner 25, 25XD 1980-87 USA ser. #s 5705532 & Up 2-Stroke Mercury Mariner 25, 25XD 1980-83 AUS ser. #s 8073158 & Up 2-Stroke Mercury Mariner 25 Sea Pro, Mara., Super 15 1988-98 USA ser. #s 0B238464 & Up 2-Stroke Mercury Mariner 25 Sea Pro, Mara., Super 15 1988-94 BEL ser. #s 9507381 & Up 2-Stroke Mercury Mariner 25 Sea Pro, Mara., Super 15 1988-94 CAN ser. #s 0A730007 & Up 2-Stroke Mercury Mariner 25 (3-Cyl.) 1997 & Up USA ser. #s 0E268781 & Up 2-Stroke