{"product_id":"ac-delco-acder44xls-iridium-spark-plug-interchange-ngk-gr4-bpr5es","title":"AC Delco ACDER44XLS Iridium Spark Plug, Interchange NGK GR4 \/ BPR5ES","description":"\u003cp\u003eThe AC Delco ACDER44XLS is an iridium spark plug built for dependable cold starts, quick acceleration, and smooth engine performance. Its iridium tip construction provides outstanding strength and high temperature resistance, while a copper core delivers strong heat transfer to help maximize plug durability over time. The electrode is laser-welded for a secure, long-lasting bond that resists loosening under heat cycling and vibration. Together these materials let the ACDER44XLS hold up to sustained high-temperature operation without sacrificing ignition consistency.\u003c\/p\u003e\u003cp\u003eThis spark plug is designed as a direct interchange for NGK GR4 and NGK BPR5ES plugs, making it a straightforward swap for engines currently running those part numbers. AC Delco is a long-established plug manufacturer, and the ACDER44XLS reflects that engineering in a compact, easy-to-install package suited for routine maintenance or full ignition tune-ups.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e AC Delco\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e ACDER44XLS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Iridium spark plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrode Material:\u003c\/strong\u003e Iridium tip with copper core\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Laser-welded electrode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808709586494\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNGK GR4\u003c\/li\u003e\n\u003cli\u003eNGK BPR5ES\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the AC Delco ACDER44XLS spark plug made of?\u003c\/strong\u003e The ACDER44XLS uses an iridium tip for strength and high temperature resistance, paired with a copper core that provides strong heat transfer to help maximize plug durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the ACDER44XLS interchange with NGK spark plugs?\u003c\/strong\u003e Yes, the AC Delco ACDER44XLS is interchangeable with NGK GR4 and NGK BPR5ES spark plugs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the ACDER44XLS spark plug weigh?\u003c\/strong\u003e It weighs 0.1 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this spark plug improve cold starting?\u003c\/strong\u003e Reliable cold starting is one of the key benefits of the iridium construction used in the AC Delco ACDER44XLS.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the electrode welded or crimped on the ACDER44XLS?\u003c\/strong\u003e The electrode on the AC Delco ACDER44XLS is laser-welded, which helps it hold up under heat and vibration over time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the UPC for the AC Delco ACDER44XLS spark plug?\u003c\/strong\u003e The UPC for the AC Delco ACDER44XLS spark plug is 808709586494.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the ACDER44XLS a genuine AC Delco part?\u003c\/strong\u003e Yes, the ACDER44XLS is a genuine AC Delco iridium spark plug, not a generic aftermarket copy.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat performance benefits does iridium construction offer over standard plugs?\u003c\/strong\u003e Iridium construction on the AC Delco ACDER44XLS offers a high melting point, reliable cold starting, quick acceleration, and smooth engine performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the ACDER44XLS replace an NGK BPR5ES plug directly?\u003c\/strong\u003e Yes, the AC Delco ACDER44XLS is listed as a direct interchange for the NGK BPR5ES.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the copper core affect heat transfer?\u003c\/strong\u003e The copper core in the ACDER44XLS provides great heat transfer, which helps maximize the plug's durability.\u003c\/p\u003e","brand":"AC Delco","offers":[{"title":"Default Title","offer_id":49027424780507,"sku":"ACD-R44XLS","price":3.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/ACD-R44XLS__96545.1747363840.500.750.jpg?v=1785163230","url":"https:\/\/www.goodvibesmarina.com\/products\/ac-delco-acder44xls-iridium-spark-plug-interchange-ngk-gr4-bpr5es","provider":"Good Vibes Marina","version":"1.0","type":"link"}