{"product_id":"hei-coil-connector-gray-18-26812-for-delco-est-ignition-coil","title":"Sierra 18-26812 HEI Coil Connector, Gray, Replaces 898141, for MerCruiser I\/O Engines with Delco HVS Distributor","description":"\u003cp\u003eThe Sierra 18-26812 is a gray HEI coil connector engineered for MerCruiser I\/O engines equipped with a Delco HVS distributor. It senses current levels in the coil and adjusts dwell automatically to maintain peak ignition energy throughout the entire RPM range, replacing the fixed dwell behavior of older point-type ignition systems. Compared to point-type systems, this connector develops on average 4 times more available energy between 3000 and 5000 RPM and twice as much plug voltage, giving the engine a stronger, more consistent spark under load. Because peak current is reached just prior to spark, ignition energy is sustained and coil life is extended rather than shortened by constant high-current draw. The result is more stable ignition timing across the operating range, which helps the engine run smoother and start more reliably. This connector is designed to work with the Sierra 18-5472 Flame Thrower II Coil for optimum performance, making the two a matched upgrade path for engines still running the original HEI coil hookup. It directly replaces OEM part number 898141 and is intended as a drop-in fit for engines already equipped with a Delco HVS distributor, requiring no modification to the existing ignition harness. At just 0.01 pounds, it is a small but critical link in the ignition circuit.\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 18-26812\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e HEI Coil Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Gray\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e I\/O - MerCruiser Ignition System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Engines equipped with Delco HVS distributor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 898141\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Pairing:\u003c\/strong\u003e Sierra 18-5472 Flame Thrower II Coil for optimum performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.01 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eI\/O - MERCRUISER - Ignition System\u003c\/li\u003e\n\u003cli\u003eEngines equipped with Delco HVS distributor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e898141\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Sierra 18-26812 HEI coil connector do?\u003c\/strong\u003e It senses current levels in the ignition coil and adjusts dwell to maintain peak energy across the entire RPM range, which is the core function of the Sierra 18-26812 HEI coil connector.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-26812 replace?\u003c\/strong\u003e The Sierra 18-26812 replaces OEM part number 898141.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich engines is this connector designed for?\u003c\/strong\u003e It is designed for I\/O MerCruiser engines equipped with a Delco HVS distributor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much more ignition energy does this connector provide versus a point-type system?\u003c\/strong\u003e On average it develops 4 times more available energy between 3000 and 5000 RPM and twice as much plug voltage compared to point-type ignition systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this connector affect coil life?\u003c\/strong\u003e Yes, because peak current is reached just prior to spark, ignition energy is sustained and coil life is increased rather than shortened by the Sierra 18-26812 connector.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the Sierra 18-26812 connector?\u003c\/strong\u003e It is gray, as reflected in its designation as the HEI coil gray connector.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-26812 weigh?\u003c\/strong\u003e The Sierra 18-26812 HEI coil connector weighs 0.01 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this connector be used with any ignition coil?\u003c\/strong\u003e For optimum performance, the Sierra 18-26812 is intended to be used with the Sierra 18-5472 Flame Thrower II coil.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this connector improve ignition timing stability?\u003c\/strong\u003e Yes, the automatic dwell adjustment in the Sierra 18-26812 results in more stable timing throughout the RPM range.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-26812 a genuine Sierra part?\u003c\/strong\u003e Yes, 18-26812 is a genuine Sierra manufacturer part number, not a generic aftermarket equivalent.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988108816603,"sku":"SIE-18-26812","price":8.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-26812__06481.1698681708.500.750.jpg?v=1785329144","url":"https:\/\/www.goodvibesmarina.com\/products\/hei-coil-connector-gray-18-26812-for-delco-est-ignition-coil","provider":"Good Vibes Marina","version":"1.0","type":"link"}