1Fitment: This dual plug wire ignition coil is perfect replacement for Johnson Evinrude; Fit for 2 Hp 1995+; Fit for 2.3 Hp 1995+; Fit for 2.5 Hp 1988; Fit for 2.5 Hp Ultra/Excel 1987?1988; Fit for 3 Hp 1991+; Fit for 3.3 Hp 1995+; Fit for 4 Hp 1991+; Fit for 4 Hp Ultra/Excel 1987?1990. 2Oem: The Oem of this dual plug wire ignition coil are 0583740, 583740, 583298, 879614 and 18?5170 for reference, please check the part number of your item before purchasing. 3Strong Construction: Made from solid stainless steel and plastic materials, which has high strength and toughness, stable and wear resistant. 4Reliable Performance: Solve abnormal ignition, and get your outboard engine working again in a short time. 5Direct Replacement: Our dual plug wire ignition coil is designed for substituting the old and damaged part, which is convenient and time saving.