Fuel Tank Connector | Sierra 18-8063 Sierra 18-8063 Fuel Tank Connector Johnson and Evinrude 1/4 in. NPT Fuel Tank Connector Mates with Sierra 18-8056 and 18-8092 Replaces Mercury 802182A1 Replaces OMC/Johnson/Evinrude 502867, 772681 Replaces Mallory 9-38010