{"product_id":"ac-delco-41-101-iridium-spark-plug-cross-reference-ngk-itr4a15","title":"AC Delco 41-101 Iridium Spark Plug - Cross Reference NGK ITR4A15","description":"\u003cp\u003eThe AC Delco 41-101 is an iridium spark plug built for outstanding strength and high temperature resistance. Iridium construction allows for a smaller, more efficient electrode design compared to conventional plugs, which supports improved cold starting and quicker acceleration while maintaining smooth engine performance. The electrode material has a high melting point and is laser-welded for a durable, reliable bond that holds up under repeated heat cycling.\u003c\/p\u003e\u003cp\u003eThis plug is designed as a direct replacement for engines specifying the AC Delco 41-101, and it cross-references to the NGK ITR4A15, Volvo 21467472, and Donovan 203052 part numbers, making it straightforward to identify the correct plug even if your engine documentation lists one of those alternate numbers. It ships ready to install with no additional preparation required.\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 41-101\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrode Material:\u003c\/strong\u003e Iridium\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 808709616283\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits engines specifying the AC Delco 41-101 spark plug or its listed cross-reference numbers.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNGK ITR4A15\u003c\/li\u003e\n\u003cli\u003eVolvo 21467472\u003c\/li\u003e\n\u003cli\u003eDonovan 203052\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the AC Delco 41-101 spark plug made of?\u003c\/strong\u003e The AC Delco 41-101 uses an iridium electrode, which provides outstanding strength and high temperature resistance compared to standard electrode materials.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 41-101 cross-reference to an NGK part number?\u003c\/strong\u003e Yes, the AC Delco 41-101 is interchangeable with the NGK ITR4A15 spark plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the AC Delco 41-101 the same as the Volvo 21467472 spark plug?\u003c\/strong\u003e Volvo 21467472 is listed as a cross-reference number for the AC Delco 41-101, so the two part numbers refer to an equivalent spark plug.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does the Donovan 203052 number mean for this spark plug?\u003c\/strong\u003e Donovan 203052 is another cross-reference number for the AC Delco 41-101, useful if your engine paperwork lists that number instead.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the AC Delco 41-101 spark plug weigh?\u003c\/strong\u003e This spark plug weighs 0.1 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy choose an iridium spark plug over a standard one?\u003c\/strong\u003e Iridium construction allows for a smaller, more efficient electrode design, which the AC Delco 41-101 uses to support improved cold starting and quicker acceleration with smooth engine performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the AC Delco 41-101 laser-welded?\u003c\/strong\u003e Yes, the electrode on the AC Delco 41-101 is laser-welded for a reliable, durable connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat UPC does the AC Delco 41-101 spark plug use?\u003c\/strong\u003e The AC Delco 41-101 spark plug carries UPC 808709616283.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the AC Delco 41-101 help with cold starts?\u003c\/strong\u003e Yes, the iridium construction of the 41-101 is designed for reliable cold starting.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine AC Delco spark plug?\u003c\/strong\u003e Yes, the 41-101 is a genuine AC Delco iridium spark plug, not a generic aftermarket substitute.\u003c\/p\u003e","brand":"AC Delco","offers":[{"title":"Default Title","offer_id":49027424616667,"sku":"ACD-41-101","price":12.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/ACD-41-101__67768.1747363840.500.750.jpg?v=1785163227","url":"https:\/\/www.goodvibesmarina.com\/products\/ac-delco-41-101-iridium-spark-plug-cross-reference-ngk-itr4a15","provider":"Good Vibes Marina","version":"1.0","type":"link"}