{"product_id":"denso-3539-spark-plug","title":"Denso 3539 Spark Plug","description":"\u003ch2\u003eReliable Ignition Performance for Select GM and Isuzu Vehicles\u003c\/h2\u003e\u003cp\u003eThe Denso Iridium Long Life spark plug, part number 3539, is engineered to deliver consistent ignition performance for a range of vehicles including Buick, Cadillac, Chevrolet, GMC, and more. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIridium center electrode tip for enhanced durability and ignition\u003c\/li\u003e\n\u003cli\u003ePlatinum chip ground electrode tip for stable spark and wear resistance\u003c\/li\u003e\n\u003cli\u003eCopper core center electrode for optimal conductivity\u003c\/li\u003e\n\u003cli\u003eStandard ground configuration with a single ground electrode\u003c\/li\u003e\n\u003cli\u003ePre-gap size of 1.0 mm for precise spark gap\u003c\/li\u003e\n\u003cli\u003eTapered seat type ensuring proper fit and sealing\u003c\/li\u003e\n\u003cli\u003eThread diameter of 14.00 mm and reach of 25.00 mm for correct installation depth\u003c\/li\u003e\n\u003cli\u003eHex size of 16.0 mm for standard tool compatibility\u003c\/li\u003e\n\u003cli\u003eManufacturer heat range rating of 16 for balanced heat dissipation\u003c\/li\u003e\n\u003cli\u003eResistance rating of 5000 ohms to reduce electrical noise\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Denso Iridium Long Life Product Line\u003c\/h2\u003e\u003cp\u003eThe Iridium Long Life series by Denso focuses on extending spark plug service intervals while maintaining reliable ignition. Utilizing iridium and platinum materials, this product line offers improved electrode wear resistance and stable performance under various driving conditions. Part number 3539 is a representative spark plug within this line, combining advanced materials with precise engineering to meet the demands of secondary ignition systems.\u003c\/p\u003e\u003ch2\u003eTechnical Details and Application\u003c\/h2\u003e\u003cp\u003eThis spark plug features a copper core center electrode with an iridium tip, which enhances electrical conductivity and durability. The ground electrode incorporates a platinum chip tip and nickel core material, providing a stable spark and resistance to electrode wear. The standard ground configuration with a single electrode supports consistent ignition, while the tapered seat ensures a secure fit in the combustion chamber. The 1.0 mm pre-gap size is factory set to optimize spark efficiency and combustion.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Use Cases\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, Saab, and Saturn models\u003c\/li\u003e\n\u003cli\u003eSuitable for vehicles such as Chevrolet Camaro, Silverado 1500, Cadillac Escalade, GMC Sierra 2500 HD, and Isuzu Ascender\u003c\/li\u003e\n\u003cli\u003eAddresses ignition misfires and rough idling issues\u003c\/li\u003e\n\u003cli\u003eHelps improve fuel efficiency and engine responsiveness\u003c\/li\u003e\n\u003cli\u003eReduces spark plug fouling and electrode wear over time\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the spark plug gap is checked before installation, although the pre-gap size is factory set at 1.0 mm. Use a 16 mm socket wrench for proper tightening to the manufacturer’s torque specifications. Confirm compatibility with your vehicle’s make and model, especially for GM and Isuzu applications listed. Avoid over-tightening to prevent damage to the tapered seat or threads.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDenso manufactures this spark plug to meet OEM standards for ignition components. The use of iridium and platinum materials contributes to long service life and consistent performance. While specific warranty details are not provided, Denso products typically adhere to strict quality control processes to ensure reliability in secondary ignition systems.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":52163235840181,"sku":"BBNF-3539","price":13.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_3539_Fro.jpg?v=1775590318","url":"https:\/\/www.partcatalog.com\/products\/denso-3539-spark-plug","provider":"PartCatalog","version":"1.0","type":"link"}