Mercury Cap & Rotor Kit 5.0L,5.7L,7.4L 8.2L using Thunderbolt IV/V HEI 805759T3
It includes A rotor (ignition "wheel") (part number 13524T1). A distributor cap (part number 805759T1). A gasket (part number 27-805760). It's compatible with various GM small-block and big-block marine engines, including.