{"product_id":"bdfhyk-iridium-spark-plug-set-6-pack-for-dodge-jeep-3-7l-4-7l-engines-oe-4504-pk20tt-improved-ignition","title":"BDFHYK Iridium Spark Plug Set — 6-Pack for Dodge\/Jeep 3.7L \u0026 4.7L Engines, OE 4504\/PK20TT, Improved Ignition","description":"\u003cp\u003e\u003cstrong\u003eBDFHYK Iridium Spark Plug Set of 6 delivers reliable ignition for compatible 3.7L and 4.7L Dodge, Jeep, and Mitsubishi engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese spark plugs are engineered as direct replacements for OE part numbers 4504 and PK20TT, designed to restore consistent ignition performance and maintain factory-level durability. Constructed with ultra-fine iridium center electrodes and high-density ceramic insulators, the set is intended for vehicles including Dodge Nitro, Ram 1500, Dakota, Durango, and Jeep Commander, Liberty, Grand Cherokee, and Mitsubishi Raider. Before purchasing, confirm fitment by comparing year, make, model, engine size, and OE part number to ensure compatibility.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these spark plugs affect engine starting and throttle response?\u003c\/h3\u003e\n\n\u003cp\u003eIridium-tipped electrodes provide a focused, hotter spark that helps with quicker combustion, which can translate to crisper throttle response and more reliable starting. While gains depend on engine condition and fuel system, these plugs aim to restore the ignition characteristics expected from OE-equivalent parts.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFine iridium center electrode for concentrated spark energy\u003c\/li\u003e\n  \u003cli\u003eImproved ignition sensitivity reduces misfires under light load\u003c\/li\u003e\n  \u003cli\u003eOE-level design intended to match factory heat range and seat type\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and construction improve longevity compared to standard plugs?\u003c\/h3\u003e\n\n\u003cp\u003eThis set uses iridium for the center electrode and isostatic ceramic for the insulator, providing both wear resistance and excellent electrical insulation. These materials are chosen to resist electrode erosion and maintain consistent gap geometry over many miles, which helps extend service intervals relative to conventional copper plugs.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eExtremely fine iridium electrodes resist wear and erosion\u003c\/li\u003e\n  \u003cli\u003eHigh-density ceramic insulator for mechanical strength and insulation\u003c\/li\u003e\n  \u003cli\u003eManufactured to TS16949-like quality standards for consistent durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAre these spark plugs easy to install and what should I check before fitting?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation follows the same steps as factory spark plugs: remove old plugs, check and set the correct gap if necessary, torque to vehicle specifications, and reconnect ignition components. Always verify compatibility with the vehicle’s year, engine variant, and OE part number to avoid fitment issues and to ensure correct thread, reach, and seat configuration.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDirect-replacement design for compatible engines—no modification expected\u003c\/li\u003e\n  \u003cli\u003eConfirm OE numbers 4504 or PK20TT for fitment match\u003c\/li\u003e\n  \u003cli\u003eUse proper torque and anti-seize guidance from manufacturer or service manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance and safety precautions should I follow when buying?\u003c\/h3\u003e\n\n\u003cp\u003ePurchase only after confirming the vehicle’s compatibility and OE reference to avoid incorrect fit or engine issues. These plugs are sold as 100% new auto parts and intended to meet OE-level durability, but proper installation and following the vehicle manufacturer’s service intervals are essential for safe operation.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eVerify year\/make\/model and OE number before ordering\u003c\/li\u003e\n  \u003cli\u003eHandle with clean tools to avoid contaminating electrodes or insulators\u003c\/li\u003e\n  \u003cli\u003eReplace spark plugs in matched sets as recommended by the vehicle maker\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The BDFHYK iridium spark plug set is aimed at owners and technicians who need an OE-equivalent replacement for 3.7L and 4.7L engines in Dodge, Jeep, and Mitsubishi vehicles. It's suited for those seeking improved ignition consistency and longer plug life compared with basic copper plugs, and for anyone performing routine maintenance or engine tune-ups who requires parts compatible with OE numbers 4504 and PK20TT.\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: Which vehicles are these spark plugs compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit select Dodge Nitro, Ram 1500, Dakota, Durango; Jeep Commander, Liberty, Grand Cherokee; and Mitsubishi Raider with 3.7L or 4.7L engines. Confirm OE number 4504\/PK20TT.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do these plugs require gap adjustment before installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They are factory-gapped to OE specifications in most cases, but you should verify and adjust the gap per your vehicle service manual.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BDFHYK","offers":[{"title":"Default Title","offer_id":48086919282846,"sku":"B0BY4M1KXX","price":30.63,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/bdfhyk-front-packaging-set-of-6.jpg?v=1785909521","url":"https:\/\/northtrailauto.ca\/products\/bdfhyk-iridium-spark-plug-set-6-pack-for-dodge-jeep-3-7l-4-7l-engines-oe-4504-pk20tt-improved-ignition","provider":"North Trail Auto","version":"1.0","type":"link"}