{"product_id":"bdfhyk-iridium-spark-plugs-set-of-6-for-bmw-oe-3199-iridium-tip-copper-core-for-longer-life","title":"BDFHYK Iridium Spark Plugs Set of 6 for BMW (OE 3199) — Iridium Tip, Copper Core for Longer Life","description":"\u003cp\u003e\u003cstrong\u003eThese BDFHYK iridium spark plugs (set of 6) are high-performance replacement plugs engineered to restore reliable ignition for compatible BMW, Porsche and Cadillac engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your vehicle uses OE numbers 3199, 12120037607, 12129071003, 12120141871 or BKR6EQUP, this set provides an iridium-tipped electrode, copper core heat dissipation and an isostatically pressed ceramic insulator designed for longer life and consistent starts. The plugs aim to deliver quicker ignition, stable combustion and resistance to wear compared with conventional plugs — useful when restoring drivability or maintaining routine service intervals.\u003c\/p\u003e\n\n\u003ch3\u003eWhich cars will these spark plugs fit?\u003c\/h3\u003e\n\u003cp\u003eThese spark plugs are listed to fit a range of BMW models across late 1990s and early 2000s vintages, plus certain Porsche and Cadillac applications. Compatibility depends on your engine variant and the exact OE replacement number, so confirm with your vehicle’s year, model and the OE part number.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCommon BMW fits: 3-series (320i, 323i, 323Ci, 325i, 325Ci, 328i, 328Ci, 328is), 330i\/330Ci\/330xi, M3, 5-series (528i, 525i, 530i), X3, X5, Z3, Z4.\u003c\/li\u003e\n  \u003cli\u003ePorsche: select 911 and Boxster model years indicated in OE cross-reference.\u003c\/li\u003e\n  \u003cli\u003eCadillac: select CTS years where the OE matches listed numbers.\u003c\/li\u003e\n  \u003cli\u003eAlways verify by checking the OE number (3199 \/ 12120037607 \/ 12129071003 \/ 12120141871 \/ BKR6EQUP) before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these iridium plugs improve performance?\u003c\/h3\u003e\n\u003cp\u003eIridium is used on the center electrode to create a fine, durable tip that concentrates spark energy for consistent ignition. Paired with a copper core and robust ceramic insulator, these plugs aim for reliable starts, smoother throttle response and extended service life compared with plain nickel electrodes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFine iridium tip for focused spark and dependable ignition.\u003c\/li\u003e\n  \u003cli\u003eCopper core improves heat transfer, helping to control electrode temperature.\u003c\/li\u003e\n  \u003cli\u003eIsostatically pressed ceramic insulator resists thermal shock and provides strong insulation.\u003c\/li\u003e\n  \u003cli\u003eProjected economic life cited around 40,000–60,000 km under normal conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before buying these plugs?\u003c\/h3\u003e\n\u003cp\u003eFitment is critical — confirm your vehicle’s required spark plug part number and compare it to the OE numbers listed for this set. Also consider engine condition and service intervals; replacing all plugs at once ensures uniform ignition performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMatch one of these OE numbers: 3199, 12120037607, 12129071003, 12120141871, BKR6EQUP.\u003c\/li\u003e\n  \u003cli\u003eVerify model year, engine code and cylinder layout for proper plug type and gap requirements.\u003c\/li\u003e\n  \u003cli\u003eReplace plugs in sets to avoid uneven wear and misfires on multi-cylinder engines.\u003c\/li\u003e\n  \u003cli\u003eUse manufacturer torque and gap specs when installing; improper torque can damage threads or electrodes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these plugs durable and who backs them?\u003c\/h3\u003e\n\u003cp\u003eBDFHYK manufactures these plugs on a production line claiming automotive-grade materials and quality control. The iridium electrode and reinforced insulator are intended for extended life; customer support is available if parts or fitment issues arise.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConstructed with an iridium center electrode and copper core for better durability.\u003c\/li\u003e\n  \u003cli\u003eCeramic insulator manufactured to resist high temperatures and electrical leakage.\u003c\/li\u003e\n  \u003cli\u003eBDFHYK offers customer support for product questions and fitment guidance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This set is for owners and mechanics working on BMW 3‑ and 5‑series models (late 1990s–2000s), selected Porsche 911\/Boxster and certain Cadillac CTS vehicles that match the listed OE numbers. Choose these plugs if you want a direct-replacement iridium option to restore ignition reliability, extend plug change intervals compared with basic plugs, and maintain factory-level performance when the OE numbers match your vehicle. Always confirm fitment by year, model and OE part number before purchase.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these plugs match OE number 12120037607?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — this set lists OE 12120037607 among its cross-references; confirm your vehicle year and engine before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long do BDFHYK iridium plugs typically last?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Under normal driving conditions they are rated around 40,000–60,000 km, depending on engine and service habits.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BDFHYK","offers":[{"title":"Default Title","offer_id":48084882096286,"sku":"B0CKHLHTDY","price":38.72,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/bdfhyk-front-view-packaging.jpg?v=1785865010","url":"https:\/\/northtrailauto.ca\/products\/bdfhyk-iridium-spark-plugs-set-of-6-for-bmw-oe-3199-iridium-tip-copper-core-for-longer-life","provider":"North Trail Auto","version":"1.0","type":"link"}