{"product_id":"sierra-18-5158-ignition-coil-for-mercury-25-60-4-stroke-30-250-efi-dfi-outboards-replaces-8m0077471-879984a1","title":"Sierra 18-5158 Ignition Coil for Mercury 125 DFI 3 Cylinder \u0026 V-135 DFI 2.5L Outboard Motors","description":"\u003cp\u003eThe Sierra 18-5158 is an ignition coil engineered for compatible Mercury outboard motors, built to meet or exceed original equipment manufacturer standards. The coil uses a high-quality brass secondary post for superior corrosion protection in demanding marine environments, along with a quality heatsink design that promotes efficient heat dissipation for consistent spark performance. Inside, a moisture-proof, molded distributor insulator body helps resist water intrusion, and a high-quality conductive center carrier maintains reliable electrical contact for dependable ignition timing.\u003c\/p\u003e\u003cp\u003eThe 18-5158 is compact, measuring 0.39 x 0.39 x 0.39 inches and weighing 0.9 pounds, and connects using a male connector for straightforward installation. It is a single-unit ignition coil intended as a direct replacement for the specific Mercury outboard applications it covers.\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 18-5158\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Ignition Coil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Gender:\u003c\/strong\u003e Male\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 0.39 x 0.39 x 0.39 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.9 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282373832\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit Count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMercury 125 DFI (3 Cylinder), serial number 1B736885 and up\u003c\/li\u003e\n\u003cli\u003eMercury V-135 DFI 2.5L, serial number 1B417702 and up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cp\u003eNo OEM cross-reference numbers are specified for this part.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Sierra 18-5158 ignition coil used for?\u003c\/strong\u003e It is an ignition coil for compatible Mercury outboard motors, designed to meet or exceed OEM standards for spark performance and reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich Mercury outboard motors does the 18-5158 ignition coil fit?\u003c\/strong\u003e The 18-5158 fits Mercury 125 DFI (3 Cylinder) outboards from serial number 1B736885 and up, as well as Mercury V-135 DFI 2.5L outboards from serial number 1B417702 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5158 fit Mercury 125 DFI 3 cylinder motors?\u003c\/strong\u003e Yes, the Sierra 18-5158 fits Mercury 125 DFI (3 Cylinder) outboard motors with serial number 1B736885 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5158 fit Mercury V-135 DFI 2.5L motors?\u003c\/strong\u003e Yes, the 18-5158 fits Mercury V-135 DFI 2.5L outboard motors with serial number 1B417702 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat serial number is required for the 125 DFI 3 Cylinder fitment?\u003c\/strong\u003e For the Mercury 125 DFI (3 Cylinder) application, the 18-5158 ignition coil fits motors with serial number 1B736885 and up.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-5158 built to OEM standards?\u003c\/strong\u003e Yes, the 18-5158 ignition coil meets or exceeds OEM standards, with a brass secondary post and heatsink design for reliable performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat connector type does the 18-5158 use?\u003c\/strong\u003e The Sierra 18-5158 ignition coil has a male connector.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the dimensions and weight of the 18-5158 ignition coil?\u003c\/strong\u003e The 18-5158 measures 0.39 x 0.39 x 0.39 inches and weighs 0.9 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the secondary post made of on the 18-5158?\u003c\/strong\u003e The 18-5158 ignition coil uses a high-quality brass secondary post for superior corrosion protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow many ignition coils come in the package?\u003c\/strong\u003e The Sierra 18-5158 is sold as a single ignition coil, unit count of 1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-5158 ignition coil include a warranty?\u003c\/strong\u003e Yes, the Sierra 18-5158 ignition coil is covered by a limited warranty.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the Sierra 18-5158 ignition coil?\u003c\/strong\u003e The UPC for the Sierra 18-5158 ignition coil is 808282373832.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988200075483,"sku":"SIE-18-5158","price":126.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/18-5158__25792.1722355045.500.750.jpg?v=1785188680","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-5158-ignition-coil-for-mercury-25-60-4-stroke-30-250-efi-dfi-outboards-replaces-8m0077471-879984a1","provider":"Good Vibes Marina","version":"1.0","type":"link"}