New ignition sensor kit for Mercruiser Thunderbolt ignition systems Fits all V-6 & V-8 engines with Thunderbolt IV & V electronic ignition, Approx 1981-1997 Replaces: 87-892150Q02; 87-892150A02; 87-861780A2; 87-91019A6; 87-861780Q4; 87-861780A4; 87-91019A3; 87-91019A2 Thunderbolt ignition systems were used on 4.3, 5.0, 5.7, 7.4, 8.2 engines Meets and exceeds oem specs UPC 701649132458 Model Thunderbolt IV Brand Name B. toys Style Name Modern Output Type Push Button Manufacturer B.B. Material Type Silicon, Ceramics, Metals, Polymers Item Dimensions 3 x 3 x 4 inches Maximum Supply Voltage 12 Volts (DC)