Feature●Sierra Power Pack●Meets or exceeds the original equipment quality●Sierra part number: 18-5766●Interchangeable with the following: CDI 113-3748, Evinrude/Johnson 583748, Mallory 9-25011Description The Sierra 18-5766 Power Pack is interchangeable with the following: CDI 113-3748, Evinrude/Johnson 583748, Mallory 9-25011. Each Sierra product meets or exceeds the original equipment part it replaces.