{"product_id":"dinan-b48-b58-s58-iridium-spark-plug-heat-range-9-premium-performance-replacement","title":"Dinan B48\/B58\/S58 Iridium Spark Plug - Heat Range 9 - Premium Performance Replacement","description":"Dinan Iridium Spark Plugs are an excellent upgrade for tuned, and even stock engines. Our spark plugs are made from Iridium - one of the strongest materials available. They last longer than other materials with higher melting points, run cooler, resist preignition, and even require less voltage to produce a strong spark. The iridium electrode with its copper core is harder and stronger than other materials, can dissipate heat more easily, and is better protected from melting, cracking, and other limitations found with standard plugs.\nB48\/B58\/S58\nAlways check sizes, gap, and heat range specs before installing. Installation of the wrong length plug can cause damage to the engine. You must verify this before installing the plug.\n\u003cul\u003e\n  \u003cli\u003e152% higher melting point than silver, 125% higher than copper, and 38% higher than platinum\u003c\/li\u003e\n  \u003cli\u003eHeat range 9 spark plug (Similar: Bosch 3, Brisk 10, Champion 4, Denso 27,  and NGK 9)\u003c\/li\u003e\n  \u003cli\u003eAcceptable for high performance \/ tuned and stock vehicle applications alike\u003c\/li\u003e\n  \u003cli\u003eOptimized electrode design for hard to ignite fuels, such as ethanol\u003c\/li\u003e\n  \u003cli\u003e1 step colder than OEM (Gen 1 B48, Gen 1\/2 B58, \u0026amp; S58)\u003c\/li\u003e\n  \u003cli\u003eCooler operating temperature than stock plugs\u003c\/li\u003e\n  \u003cli\u003eResists preignition better than stock plugs\u003c\/li\u003e\n  \u003cli\u003eAn excellent match for Dinan ignition coils\u003c\/li\u003e\n  \u003cli\u003eStronger than copper and platinum\u003c\/li\u003e\n  \u003cli\u003eLower required supplied voltage\u003c\/li\u003e\n  \u003cli\u003eInsulator Material: Ceramic\u003c\/li\u003e\n  \u003cli\u003eProjected insulator design\u003c\/li\u003e\n  \u003cli\u003eThread diameter: 12mm\u003c\/li\u003e\n  \u003cli\u003eInstall Torque: 17 Nm\u003c\/li\u003e\n  \u003cli\u003eThread reach: 26.5mm\u003c\/li\u003e\n  \u003cli\u003eHexagon: 14mm Bi-Hex\u003c\/li\u003e\n  \u003cli\u003eSupplied Gap: 0.5mm\u003c\/li\u003e\n  \u003cli\u003eTerminal Type: Cup\u003c\/li\u003e\n  \u003cli\u003eSeat Type: Flat\u003c\/li\u003e\n  \u003cli\u003eMade in the EU\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Dinan B48\/B58\/S58 Iridium Spark Plug is designed to deliver superior ignition performance for both tuned and stock engines. Crafted from iridium, one of the strongest materials available for spark plugs, it offers enhanced durability, higher melting points, and improved heat dissipation. This results in longer service life, cooler operation, and resistance to preignition, making it an excellent upgrade for high-performance vehicles.\u003cbr\u003eDesigned with an optimized electrode and a ceramic insulator, this spark plug provides a reliable spark even with hard-to-ignite fuels like ethanol. Its 1 step colder heat range compared to OEM plugs helps prevent overheating and preignition, especially important in tuned engines or those subjected to high stress. The plug’s construction includes a copper core for better heat conduction, while the iridium electrode ensures stronger, more consistent sparks with less voltage required for operation.\u003cbr\u003eInstallation specifications include a 12mm thread diameter, 26.5mm thread reach, and a 14mm Bi-Hex hexagon for easy tightening. Supplied with a 0.5mm gap, the plug is compatible with Dinan ignition coils and is ideal for applications requiring reliable performance and longevity. Always verify the size, gap, and heat range before installation to prevent engine damage. Made in the EU, this spark plug is suitable for a range of BMW engines including B48, B58, and S58, providing an effective upgrade for enthusiasts seeking improved ignition and engine efficiency.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eMade from iridium for maximum strength and longevity\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHigher melting point and heat dissipation for cooler operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOptimized electrode design for hard-to-ignite fuels like ethanol\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003e1 step colder heat range to prevent overheating and preignition\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with high-performance and stock engine applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eLower required voltage for reliable spark delivery\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eThread diameter: 12mm, thread reach: 26.5mm, hex size: 14mm Bi-Hex\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSupplied with a 0.5mm gap, insulator material: ceramic\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned for easy installation with recommended torque of 17 Nm\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSuitable for BMW B48, B58, and S58 engines, made in the EU\u003c\/li\u003e\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Dinan","offers":[{"title":"Default Title","offer_id":50977874084092,"sku":"D640-0001","price":21.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/f75a6712b67eee5a6838155384830d9dL.jpg?v=1786658780","url":"https:\/\/diycustoms.store\/products\/dinan-b48-b58-s58-iridium-spark-plug-heat-range-9-premium-performance-replacement","provider":"diycustoms.store","version":"1.0","type":"link"}