Sierra 18-8055 Brass Hose Barb 5/16"Sierra replacement brass hose barb for Johnson/Evinrude Outboards, Mercury Marine engines and Mercruiser Stern Drives. Hose Barb Size: 5/16"; Thread Size: 1/4"; Connection Type: Male; Material: Brass; Interchangeable with: Johnson/Evinrude Outboard; 173311; 123199; EMP; 22-00844; Mallory; 9-38016; 9-38016-25; Mercruiser Stern Drive; 22-63187; Mercury Marine; 22-63187; 22-57308; 22-33078; Moeller; 33430-10; Yamaha Outboard; ABA-FLINE-BA-RB;