{"product_id":"switch-box-for-mercury-mariner-4-6-cylinder-outboards-50-150-hp-1967-1979-sierra-18-99244-ignition-pack","title":"Sierra 18-99244 Ignition Switch Box for Mercury\/Mariner 4 and 6 Cylinder Outboard Engines","description":"\u003cp\u003eThe Sierra 18-99244 is an ignition switch box built for Mercury and Mariner outboard engines, covering both 4 cylinder and 6 cylinder powerheads. It serves as the ignition control module that manages spark timing and delivery to the engine, a critical component for reliable starting and running. This switch box is designed to fit 4 cylinder Mercury\/Mariner outboards rated at 50, 65, 80, and 85 HP, as well as 6 cylinder Mercury\/Mariner outboards rated at 90, 100, 115, 125, 135, 140, and 150 HP. The housing is constructed of plastic and uses a spade terminal connection with a plug-in connector type, allowing it to interface with the factory wiring harness on applicable engines. It operates with a normally open contact and an ON-OFF operation mode, and is rated for a 1 kilovolt operating voltage with a 5 milliamp current rating. The unit measures 7 x 5 x 3 inches and weighs 1.8 pounds. Because ignition switch boxes are engine-specific, boat owners replacing a failed or intermittent ignition component should confirm their engine's cylinder count and horsepower rating against the fitment listed below before ordering. This part is intended as a direct functional replacement for the ignition switch box on the covered Mercury\/Mariner engines.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-99244\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 7 x 5 x 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperation Mode:\u003c\/strong\u003e ON-OFF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Type:\u003c\/strong\u003e Normally Open\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e 1 Kilovolts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 5 Milliamps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Plug In\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal:\u003c\/strong\u003e Spade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Panel Mount\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Positions:\u003c\/strong\u003e 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282394103\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury\/Mariner 4 cylinder outboard engines, 50, 65, 80, and 85 HP, 1967-1975\u003c\/li\u003e\n\u003cli\u003eMercury\/Mariner 6 cylinder outboard engines, 90, 100, 115, 125, 135, 140, and 150 HP, 1967-1979\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99244 ignition switch box fit?\u003c\/strong\u003e The Sierra 18-99244 fits Mercury\/Mariner 4 cylinder outboard engines rated at 50, 65, 80, and 85 HP built from 1967-1975, and 6 cylinder outboard engines rated at 90, 100, 115, 125, 135, 140, and 150 HP built from 1967-1979.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-99244 ignition switch box weigh?\u003c\/strong\u003e It weighs 1.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions of this ignition switch box?\u003c\/strong\u003e The Sierra 18-99244 measures 7 x 5 x 3 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 18-99244 switch box made of?\u003c\/strong\u003e The housing is made of plastic.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-99244 an ON-OFF style switch box?\u003c\/strong\u003e Yes, the 18-99244 operates in ON-OFF mode with a normally open contact type.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat voltage and current is the 18-99244 rated for?\u003c\/strong\u003e It carries a 1 kilovolt operating voltage rating and a 5 milliamp current rating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of electrical connection does this switch box use?\u003c\/strong\u003e The Sierra 18-99244 uses a plug-in connector with a spade terminal, and it has 6 positions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-99244 fit both 4 cylinder and 6 cylinder Mercury outboards?\u003c\/strong\u003e Yes, one part number covers both the 4 cylinder engines (50, 65, 80, 85 HP, 1967-1975) and the 6 cylinder engines (90, 100, 115, 125, 135, 140, 150 HP, 1967-1979), so confirm your engine's cylinder count and horsepower before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this switch box mounted to a panel?\u003c\/strong\u003e Yes, the Sierra 18-99244 uses a panel mount configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this switch box work on a Mariner-branded outboard as well as a Mercury?\u003c\/strong\u003e Yes, the 18-99244 is designed to fit both Mercury and Mariner outboard engines within the listed cylinder and horsepower ranges.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat comes with the Sierra 18-99244?\u003c\/strong\u003e The 18-99244 is supplied as a single ignition switch box unit.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988439806171,"sku":"SIE-18-99244","price":387.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-114-2986_lg__72850.1558114294.500.750.jpg?v=1785188010","url":"https:\/\/www.goodvibesmarina.com\/products\/switch-box-for-mercury-mariner-4-6-cylinder-outboards-50-150-hp-1967-1979-sierra-18-99244-ignition-pack","provider":"Good Vibes Marina","version":"1.0","type":"link"}