Sierra products are engineered to meet today’s high horsepower engine demands and stand up in the harsh marine environment. All Sierra products meet or exceed the original equipment part it replaces. Sierra supplies many OEM engine manufacturers and boat builders hundreds of quality parts every day For: All Prestolite Fits : Ford & GM 4, 6 & 8 Cylinder Engines With Prestolite Conventional Ignition All Sierra parts qualify for and are covered under Sierra's industry leading customer satisfaction warranty ASIN B0000BXGQ1 Brand Sierra Model Contact Set Exterior Machined Item Weight 0.16 ounces Manufacturer Teleflex Marine OEM Part Number 2808870, 855846-2, 987136, 987894, CHRYSLER INBOARD 2421173, CRUSADER 41058, MERCURY MARINE 392-6325, OMC 980893, PLEASURECRAFT R114002, VOLVO 835705-5 Item model number 18-5303 Product Dimensions 0.39 x 0.39 x 0.39 inches Manufacturer Part Number 18-5303 Is Discontinued By Manufacturer No