{"product_id":"5379-spark-plug-iridium-power-iwf22","title":"Denso 5379 Iridium Power Spark Plug","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0056\/9429\/2079\/files\/DENSO-main-logo-web.jpg?v=1780601203\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDenso 5379 Iridium Power Spark Plug\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Denso 5379 Iridium Power Spark Plug is a premium ignition upgrade designed to deliver outstanding performance, durability, and reliability in modern marine engines. Featuring Denso's advanced Iridium Power technology, this spark plug utilizes an ultra-fine iridium center electrode that produces a concentrated spark for efficient combustion, improved throttle response, and dependable engine operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMarine engines demand ignition components that can withstand constant vibration, heat, and heavy loads. The Denso 5379 is engineered to meet those challenges, helping reduce misfires, improve fuel efficiency, and maintain consistent power output whether you're towing riders, surfing, skiing, or cruising.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts long-life iridium construction resists wear significantly better than conventional spark plugs, making it an excellent choice for boat owners seeking maximum performance with reduced maintenance intervals.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eCommon Engine Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Denso 5379 Iridium Power Spark Plug is commonly used in Ford-based marine engines, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eIndmar Raptor 6.2L\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIndmar Raptor 6.2L HO\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIndmar Raptor 6.2L Supercharged\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFord 6.2L SOHC marine engine platforms\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-output Ford-based marine engine packages\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eCommon Boat Fitments\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese engines are frequently found in many of today's top-performing wake, surf, and ski boats, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eSupra\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eSupra SA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupra SL\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupra SE\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupra SR\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupra Sunsport\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan\u003eMoomba\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eMoomba Mojo\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMoomba Kaiyen\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMoomba Makai\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMoomba Max\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMoomba Craz\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan\u003eCenturion\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eCenturion Ri230\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCenturion Ri245\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCenturion Fi23\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCenturion Fi25\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan\u003eSupreme\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eSupreme S220\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupreme S238\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupreme ZS232\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupreme ZS252\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan\u003eATX Surf Boats\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eATX 20 Type-S\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eATX 22 Type-S\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eATX 24 Type-S\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAdditional applications may include custom and specialty marine installations utilizing Ford-based 6.2L engine packages.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eGenuine Denso 5379 Iridium Power spark plug\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUltra-fine iridium center electrode technology\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDelivers a strong, efficient spark\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHelps improve throttle response and acceleration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSupports reliable starts and smooth idle quality\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLong service life compared to standard spark plugs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for demanding marine operating conditions\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBenefits of Iridium Power Technology\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDenso's Iridium Power design reduces the voltage required to generate a spark while improving ignition efficiency. The result is quicker engine response, cleaner combustion, improved fuel economy, and dependable performance over extended service intervals.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor owners of Supra, Moomba, Centurion, Supreme, and ATX boats powered by Ford-based Indmar Raptor engines, the Denso 5379 Iridium Power Spark Plug delivers premium ignition performance and long-lasting reliability for every day on the water.\u003c\/span\u003e\u003c\/p\u003e","brand":"Napa Auto Parts","offers":[{"title":"Default Title","offer_id":49230933754113,"sku":"DEN 5379","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0056\/9429\/2079\/files\/Screenshot2026-06-04152947_340a8fcd-ee7b-4e83-950e-2b79c0a34fef.png?v=1780602559","url":"https:\/\/inboardpartshq.com\/products\/5379-spark-plug-iridium-power-iwf22","provider":"Inboard Parts HQ","version":"1.0","type":"link"}