{"product_id":"ngk-spark-plug-tr5ix-7397-pack-of-8-laser-iridium-ignition-plugs-long-life-oem-fit","title":"NGK Spark Plug TR5IX 7397 Pack of 8 — Laser Iridium Ignition Plugs, Long-Life OEM Fit","description":"\u003cp\u003e\u003cstrong\u003eNGK TR5IX 7397 Laser Iridium spark plugs are a set of eight OEM-grade ignition plugs engineered for long life and consistent performance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese TR5IX 7397 plugs from NGK combine a fine iridium firing tip with proven electrode geometry to deliver reliable ignition and extended service intervals compared with conventional plugs. NGK supplies spark plugs to many vehicle manufacturers worldwide, so these parts are designed to meet strict factory tolerances. Before buying, check NGK's application guide for exact vehicle, engine and quantity fitment to ensure compatibility.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these spark plugs improve day-to-day engine performance?\u003c\/h3\u003e\n\u003cp\u003eLaser-welded iridium tips provide a stable, precise spark that supports smoother starts and more consistent combustion across operating conditions. That translates into fewer misfires, reliable throttle response and steadier idle in engines where these plugs are a correct fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFine iridium tip for concentrated spark energy\u003c\/li\u003e\n  \u003cli\u003eDurable center electrode that resists erosion\u003c\/li\u003e\n  \u003cli\u003eStable combustion for consistent throttle and idle\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the TR5IX 7397 different from standard spark plugs?\u003c\/h3\u003e\n\u003cp\u003eCompared with conventional plugs, the TR5IX 7397 uses premium materials and precision manufacturing to extend service life and preserve ignition efficiency over time. That means fewer replacements and reduced performance drop-off between changes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIridium center electrode lasts longer than nickel alloys\u003c\/li\u003e\n  \u003cli\u003ePrecise electrode geometry reduces ignition voltage requirement\u003c\/li\u003e\n  \u003cli\u003eManufactured to OEM-level dimensional tolerances\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I confirm these plugs fit my vehicle?\u003c\/h3\u003e\n\u003cp\u003eNGK publishes a vehicle application guide that lists part numbers by make, model, year and engine. Cross-referencing the TR5IX 7397 on NGK's website or with your vehicle’s service manual ensures correct thread size, heat range and quantity before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCheck NGK’s online fitment tool for exact vehicle matches\u003c\/li\u003e\n  \u003cli\u003eConfirm thread pitch, hex size and reach match factory specs\u003c\/li\u003e\n  \u003cli\u003eOrder eight if your engine calls for that quantity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect during installation and service intervals?\u003c\/h3\u003e\n\u003cp\u003eInstallation is the same as for other spark plugs: sealant or anti-seize depends on vehicle requirements and torque should follow the OEM specification. Iridium plugs typically allow longer service intervals, but follow manufacturer recommendations for inspection and replacement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTighten to OEM torque—do not overtighten\u003c\/li\u003e\n  \u003cli\u003eUse recommended ignition boots and torque wrench when possible\u003c\/li\u003e\n  \u003cli\u003eInspect at intervals suggested by your vehicle maker\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Automotive owners, mechanics and restoration professionals seeking a dependable replacement that matches factory-level specifications will appreciate the NGK TR5IX 7397 pack of eight. This set is suited for vehicles that specify NGK iridium plugs, drivers who prefer longer service life between tune-ups, and anyone wanting an OEM-quality ignition component for street, fleet or light-duty applications.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these NGK TR5IX 7397 spark plugs original equipment?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: NGK manufactures OEM-grade plugs used by many automakers, but verify fitment on NGK's application guide to confirm if TR5IX 7397 was specified for your vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How many spark plugs come in this listing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This listing includes a complete set of eight NGK TR5IX 7397 spark plugs.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":48079830450334,"sku":"B071RH5Y22","price":95.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/ngk-tr5ix-7397-front-packaging.jpg?v=1785772019","url":"https:\/\/northtrailauto.ca\/products\/ngk-spark-plug-tr5ix-7397-pack-of-8-laser-iridium-ignition-plugs-long-life-oem-fit","provider":"North Trail Auto","version":"1.0","type":"link"}