{"product_id":"denso-iridium-ix27-spark-plug-part-number-5373","title":"DENSO Iridium IX27 Spark Plug, Part Number 5373","description":"Iridium Spark Plug - IX27\n\u003cp\u003eThe DENSO IX27 Iridium Spark Plug, manufacturer part number 5373 and vendor part number 5373, is engineered to deliver dependable ignition performance in demanding engine applications. Its fine iridium center electrode supports lower voltage requirements while promoting consistent spark formation, helping improve starting, throttle response, and overall combustion efficiency. The IX27 model is designed for engines that require a durable, high-performance spark plug with reliable heat resistance.\u003c\/p\u003e\u003cp\u003eIridium is exceptionally resistant to erosion and can withstand temperatures up to 4,000°F, helping the electrode maintain its shape over extended service intervals. DENSO’s 0.016-inch iridium electrode is produced with 360-degree laser welding to create a secure seal that resists wear under severe operating conditions. This construction supports long-term performance in high-temperature and high-load environments.\u003c\/p\u003e\u003cp\u003eThe ground electrode features a tapered cut and U-groove design that creates a larger volume area around the flame center. This configuration helps promote efficient flame development and stable ignition across a broad range of operating conditions. The DENSO IX27 fits applications specified for this model and part number; always verify vehicle, engine, thread, reach, heat range, and manufacturer application requirements before installation. This spark plug is supplied as an individual replacement component.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: DENSO\u003c\/li\u003e\n\u003cli\u003eModel: IX27\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: 5373\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 5373\u003c\/li\u003e\n\u003cli\u003eElectrode Material: Iridium for high-temperature durability and reduced wear\u003c\/li\u003e\n\u003cli\u003eOperating Temperature Resistance: Withstands temperatures up to 4,000°F\u003c\/li\u003e\n\u003cli\u003eCenter Electrode: 0.016-inch fine-wire design helps reduce required firing voltage\u003c\/li\u003e\n\u003cli\u003eWelding Construction: 360-degree laser-welded electrode seal resists wear\u003c\/li\u003e\n\u003cli\u003eGround Electrode: Tapered cut and U-groove support stable flame development\u003c\/li\u003e\n\u003cli\u003eFitment: For vehicle and engine applications specified for DENSO IX27 part number 5373; verify application before installation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DENSO","offers":[{"title":"Default Title","offer_id":67567396880619,"sku":"IX27","price":16.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/34933.png?v=1790796307","url":"https:\/\/ctracingservices.com\/products\/denso-iridium-ix27-spark-plug-part-number-5373","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}