{"product_id":"ngk-6046-iridium-spark-plugs-dcpr7eix-4-pcs-better-start","title":"NGK 6046 Iridium Spark Plugs DCPR7EIX 4 PCS - Better Start","description":"\u003cp\u003eIn this review of the NGK 6046 Iridium spark plugs (now superseded to NGK 97637 DCPR7EIX) the bottom line is simple: these plugs are for riders who want a reliable, longer lasting replacement for stock units on Harley-Davidson Twin Cam and XL engines. The reviewer found the most persuasive reason to buy is the combination of improved starting and steady idling delivered by NGK's iridium design, which customers consistently praise for performance and durability. This listing is for a set of four plugs, making it suitable for a single engine service.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNewest part number:\u003c\/strong\u003e The NGK 6046 has been updated to NGK 97637 DCPR7EIX, ensuring buyers receive the current production part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIridium center electrode:\u003c\/strong\u003e The iridium tip improves ignition reliability and offers better wear resistance compared with standard plugs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM pedigree:\u003c\/strong\u003e NGK is the world's largest OEM spark plug supplier, so fit and compatibility with Harley-Davidson Twin Cam and XL engines is commonly specified.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance gains:\u003c\/strong\u003e Riders report quicker starts and smoother idling, suggesting real-world improvements in ignition performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePack size:\u003c\/strong\u003e This listing includes four spark plugs, enough for one complete service on most V-twin engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis product is aimed at Harley-Davidson owners and professional mechanics who want a direct-replacement spark plug with strong claims for longevity and stable combustion. It is a good choice for riders noticing slower starts, rough idle, or reduced throttle response who want an easy parts swap that often performs better than stock plugs.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include owners who require a specialized heat range or custom electrode configuration not implied by the OEM cross-reference; advanced tuners seeking non-standard gap setups or race-only plugs may prefer purpose-built options rather than an OEM-style iridium replacement.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eImproved start time and smoother idle as reported by multiple customers.\u003c\/li\u003e\n\u003cli\u003eDurable iridium tip that tends to outlast standard plugs, offering good value for money.\u003c\/li\u003e\n\u003cli\u003eDirect compatibility with many Harley-Davidson Twin Cam and XL models, matching OEM expectations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLimited specification details in the listing beyond the updated part number, so customers should confirm fitment for uncommon model years.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eNGK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number (superseded)\u003c\/td\u003e\n\u003ctd\u003e6046 now s\/s to 97637\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent part number\u003c\/td\u003e\n\u003ctd\u003eDCPR7EIX (NGK 97637)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e4 spark plugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCompatible with Harley-Davidson Twin Cam and XL engines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eIridium spark plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe NGK 6046 \/ 97637 DCPR7EIX iridium plugs are a practical, cost-effective upgrade for Harley owners seeking crisper starts and steadier idle without changing other ignition components. Given NGK's OEM history and the positive customer feedback on performance and longevity, these four-pack plugs represent good value for routine replacement on compatible Twin Cam and XL models.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these the latest NGK part number?\u003c\/strong\u003e\u003cbr\u003eYes, the listing notes NGK 6046 is now superseded to NGK 97637 DCPR7EIX and the newest number is shipping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these fit my Harley-Davidson Twin Cam?\u003c\/strong\u003e\u003cbr\u003eThey are stated as compatible with Twin Cam and XL engines, but confirm your specific model year and OEM plug spec before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many plugs are included?\u003c\/strong\u003e\u003cbr\u003eThis listing is for four spark plugs, sufficient for a single engine service on most V-twin applications.\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":48175018213595,"sku":"B00MG79MX6","price":37.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81QQPrKgMcL._AC_SL1500.jpg?v=1769436631","url":"https:\/\/gearmusthave.com\/products\/ngk-6046-iridium-spark-plugs-dcpr7eix-4-pcs-better-start","provider":"GearMustHave","version":"1.0","type":"link"}