{"product_id":"denso-3524-spark-plug","title":"Denso 3524 Spark Plug","description":"\u003ch2\u003eDenso Iridium Long Life Spark Plug 3524\u003c\/h2\u003e\u003cp\u003eDenso 3524 is an Iridium Long Life (SIP) spark plug built for OE-level performance, durability, and emissions control. It uses an iridium center electrode, platinum needle ground tip, and a 0.8 mm pre-gap for consistent ignition in modern Toyota and Lexus engines.\u003c\/p\u003e\u003cp\u003eCompatible With Toyota Camry, RAV4, Highlander, Sienna, Venza, Corolla, Prius, Prius Prime, Corolla Cross, Avalon, and Lexus ES250, ES300h, NX250, NX350h, NX450h+, RX350h, and UX250h applications where this OE-style plug is specified.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIridium center electrode for stable spark performance\u003c\/li\u003e\n\u003cli\u003ePlatinum needle ground electrode tip with needle-to-needle configuration\u003c\/li\u003e\n\u003cli\u003e0.8 mm pre-gap for factory-style ignition setup\u003c\/li\u003e\n\u003cli\u003e5000 ohm resistor for ignition noise suppression\u003c\/li\u003e\n\u003cli\u003eCopper core center electrode and nickel ground electrode core\u003c\/li\u003e\n\u003cli\u003eFlat seat design, 12.00 mm thread diameter, 26.50 mm reach\u003c\/li\u003e\n\u003cli\u003eManufacturer heat range 16\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eThis Denso Iridium Long Life (SIP) spark plug is engineered to match strict OE performance, durability, and emissions standards. The iridium tip supports long service life, while the platinum needle ground design helps maintain consistent firing characteristics under everyday driving and high-efficiency hybrid operation. Part number 3524 cross-references Denso Auto Parts FC16HR-Q8 and Toyota 90919-01289 \/ 90919-A1001 for the same application.\u003c\/p\u003e\u003cp\u003eUse Denso 3524 when servicing OE-specified ignition systems in late-model Toyota and Lexus vehicles, including 2020-2023 Toyota Camry, 2020-2023 Toyota RAV4, and 2019-2023 Lexus ES300h. It is also listed for 2023 Toyota Prius with a 0.032 gap note, along with other 2018-2023 Toyota and Lexus hybrid and gasoline applications shown in the fitment data.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHard starting caused by worn spark plug electrodes\u003c\/li\u003e\n\u003cli\u003eRough idle from inconsistent ignition firing\u003c\/li\u003e\n\u003cli\u003eMisfire codes related to plug wear or gap drift\u003c\/li\u003e\n\u003cli\u003eReduced fuel economy from degraded spark performance\u003c\/li\u003e\n\u003cli\u003eEmissions issues tied to weak combustion\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify engine application and OE part number before installation.\u003c\/li\u003e\n\u003cli\u003eConfirm the specified gap for the vehicle; the listed pre-gap is 0.8 mm, and 2023 Toyota Prius fitment notes a 0.032 gap.\u003c\/li\u003e\n\u003cli\u003eUse the correct torque procedure for the aluminum cylinder head and flat-seat plug design.\u003c\/li\u003e\n\u003cli\u003eInspect ignition coils and boots during service to avoid repeat misfire concerns.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDenso manufactures this spark plug to OE performance, durability, and emissions standards. The Iridium Long Life (SIP) product line is built for factory-style fitment and consistent ignition performance in the listed Toyota and Lexus applications.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":52703604670645,"sku":"BBNF-3524","price":26.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_3524_Fro.jpg?v=1781331060","url":"https:\/\/www.partcatalog.com\/products\/denso-3524-spark-plug","provider":"PartCatalog","version":"1.0","type":"link"}