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Decent.
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Prices may varyThis product ranks #20 of 31 in Spark Plug.Three above it ↓
Last reviewed August 13, 2026
TL;DR NGK is the OE supplier for Honda and Acura; BKR6EIX uses an iridium center electrode at heat range 6, pre-gapped to OEM spec and confirmed accurate out-of-box. No mileage rating in the listing.
Iridium center electrode, heat range 6, M14 x 1.25 thread, gasket seat, 19mm reach. NGK is the OE supplier for Honda and Acura; heat range 6 covers the Accord 2.4L, Odyssey 3.5L, and Acura TL. Gap is factory-set to 0.040 inches, confirmed accurate out-of-box by owners; no adjustment needed for common K-series and J35 V6 applications. Cross-references include DENSO and Beck/Arnley numbers; community installs confirm fitment on the Cruze 1.4L and Audi A8 4.2L. No mileage rating in the listing.
Right pick for Honda/Acura owners needing heat range 6 at M14 x 1.25 gasket-seat spec; NGK's OE provenance grounds the cross-reference. Skip if the engine needs a tighter gap for forced induction or a published interval.
Ceramic insulator, steel shell, iridium electrode. No chemical exposure from the plug. Steel shell recyclable as ferrous scrap; ceramic insulator to landfill.
The BKR6EIX (NGK part 6418) is a general-replacement iridium plug at heat range 6 covering a broad range of applications. Confirmed community fitment includes the Honda Accord 2.4L (K-series), Honda Odyssey 3.5L (J35 V6), Acura TL, Chevrolet Cruze 1.4L, MINI Cooper S, and Audi A8 4.2L. Cross-references include DENSO VK20T, DENSO 3373, Beck/Arnley 1765247, and others. Always verify against the NGK application guide for your specific year, make, model, and engine before purchasing.
Yes. The BKR6EIX ships factory-set to 0.040 inches. Owners consistently report the gap was accurate out-of-the-box without adjustment, including on Honda applications.
NGK does not state a specific mileage rating in the BKR6EIX product listing. The Iridium IX series is generally associated with 80,000 to 100,000-mile service life, but this figure does not appear in the product page or manufacturer spec sheet for this ASIN. Confirm the change interval from the OEM service manual for your specific application.
The Amazon listing for NGK Iridium IX BKR6EIX Spark Plug (4-Pack) carries a California Prop 65 warning. California requires this warning on a very wide range of manufactured goods — including rubber, vinyl, plastic, and metal automotive parts — whenever trace exposure to any of roughly 900 listed substances (commonly phthalates or heavy metals) is possible, regardless of whether the specific product poses a meaningful health risk. As a passive accessory, NGK Iridium IX BKR6EIX Spark Plug (4-Pack) has no Safety Data Sheet, so there's no chemistry breakdown to translate beyond that.
Marketing copy from NGK, via Amazon. Not editorial.
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