{"id":17913,"date":"2025-05-28T20:24:38","date_gmt":"2025-05-28T17:35:24","guid":{"rendered":"https:\/\/www.mwsteel.eu\/?post_type=product&#038;p=17913"},"modified":"2025-06-03T14:09:15","modified_gmt":"2025-06-03T11:09:15","slug":"hks-spark-plugs-rutenium-mr40-xlz-mr45-xlz-mr45-hlz","status":"publish","type":"product","link":"https:\/\/www.mwsteel.eu\/en\/tuote\/hks-spark-plugs-rutenium-mr40-xlz-mr45-xlz-mr45-hlz\/","title":{"rendered":"HKS Spark Plugs Ruthenium MR40-XLZ, MR45-XLZ, MR45-HLZ"},"content":{"rendered":"<p>We offer a full selection of HKS Super Fire Racing family of spark plugs optimized for race and tuning applications, featuring reinforced ignition capabilities, durability and anti-insulation. The thermal edge of the ceramic insulator discharges to help decrease carbon deposits under long idling.<\/p>\n<p>Heat ranges are designed to withstand high temperatures and pressures under demanding race conditions.<\/p>\n<p><span class=\"citation-197\">The HKS MR40-XLZ, MR45-XLZ and MR45-HLZ spark plugs are part of the newer <\/span><span class=\"citation-197\">HKS &#8220;MR Series&#8221;<\/span><span class=\"citation-197 citation-end-197\"> of Super Fire Racing plugs.<\/span> <span class=\"citation-196\">The &#8220;MR&#8221; specifically highlights that these plugs incorporate a <\/span><strong><span class=\"citation-196\">Ruthenium Alloy Electrode<\/span><\/strong><span class=\"citation-196 citation-end-196\"> for enhanced performance and longevity.<\/span><\/p>\n<p>They have a Long Reach M12 x 26,5 thread and a wrench size 14 mm \/ 35\/64&#8243; (HLZ) or 16 mm \/ 5\/8&#8243; (XLZ), and their firing point protrudes 2 mm \/ 5\/64&#8243;.<\/p>\n<p data-sourcepos=\"39:1-39:178\"><span class=\"citation-180 citation-end-180\">These plugs are designed for modern performance cars that utilize the M12 thread and long reach, particularly those where a protruding electrode offers benefits.<\/span><\/p>\n<ul data-sourcepos=\"41:1-43:0\">\n<li data-sourcepos=\"41:1-41:100\"><span class=\"citation-179\">MR40\/45-XLZ:<\/span> <span class=\"citation-179\">Suzuki Swift Sport (ZC33S)<\/span><\/li>\n<li data-sourcepos=\"42:1-43:0\"><span class=\"citation-178\">MR45-HLZ:<\/span> <span class=\"citation-178\">Honda Civic Type R (FK8\/FL5)<\/span><span class=\"citation-178\"> ,\u00a0<\/span><span class=\"citation-178\">Toyota GR Yaris, <\/span><span class=\"citation-178\">Subaru BRZ \/ Toyota 86<\/span><span class=\"citation-178 citation-end-178\"> (FA20\/FA24) applications, especially for tuned setups.<\/span><\/li>\n<\/ul>\n<p>MR-XLZ -series offers two heat ranges: 40 (NGK 8) and 45 (NGK 9)<\/p>\n<p>MR-HLZ -model heat range is 45 (NGK 9).<\/p>\n<p>The chart below illustrates the respective Denso and NGK heat range indexes.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-17801\" src=\"https:\/\/www.mwsteel.eu\/wp-content\/uploads\/2025\/05\/HKS-lampoarvotaulukko-325x57.jpg\" alt=\"\" width=\"519\" height=\"91\" srcset=\"https:\/\/www.mwsteel.eu\/wp-content\/uploads\/2025\/05\/HKS-lampoarvotaulukko-325x57.jpg 325w, https:\/\/www.mwsteel.eu\/wp-content\/uploads\/2025\/05\/HKS-lampoarvotaulukko-600x104.jpg 600w, https:\/\/www.mwsteel.eu\/wp-content\/uploads\/2025\/05\/HKS-lampoarvotaulukko.jpg 707w\" sizes=\"auto, (max-width: 519px) 100vw, 519px\" \/><\/p>\n<p>Choose the best option from the drop down menu.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We offer a full selection of HKS Super Fire Racing family of spark plugs optimized for race and tuning applications, featuring reinforced ignition capabilities, durability&#8230;<\/p>\n","protected":false},"featured_media":17804,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[1046],"product_tag":[],"class_list":{"0":"post-17913","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-spark-plugs","8":"first","9":"onbackorder","10":"taxable","11":"shipping-taxable","12":"purchasable","13":"product-type-variable"},"_links":{"self":[{"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/product\/17913","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/comments?post=17913"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/media\/17804"}],"wp:attachment":[{"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/media?parent=17913"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/product_brand?post=17913"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/product_cat?post=17913"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.mwsteel.eu\/en\/wp-json\/wp\/v2\/product_tag?post=17913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}