{"product_id":"denso-3122-spark-plug","title":"Denso 3122 Spark Plug","description":"\u003ch2\u003eReliable Ignition Performance for Lexus, Toyota, and More\u003c\/h2\u003e\u003cp\u003eThe Denso 3122 spark plug from the U-Groove Conventional line offers consistent ignition performance for a range of vehicles including Lexus LS400, Toyota Celica, and Mitsubishi Montero. Designed with precision materials and a unique U-groove ground electrode tip, this spark plug supports efficient combustion and engine reliability.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eU-groove ground electrode tip design for improved spark exposure\u003c\/li\u003e\n\u003cli\u003eNickel ground electrode and center electrode tip for durability\u003c\/li\u003e\n\u003cli\u003eCopper center electrode core for optimal conductivity\u003c\/li\u003e\n\u003cli\u003eStandard ground configuration with a single ground electrode\u003c\/li\u003e\n\u003cli\u003eFlat seat type with 14mm thread diameter and 19mm reach\u003c\/li\u003e\n\u003cli\u003ePre-gap size of 0.8 mm for precise ignition timing\u003c\/li\u003e\n\u003cli\u003eHex size of 16.0 mm for easy installation\u003c\/li\u003e\n\u003cli\u003eManufacturer heat range of 20 suitable for various engine conditions\u003c\/li\u003e\n\u003cli\u003eResistance of 5000 ohms to reduce electrical noise interference\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the Denso U-Groove Conventional Spark Plug Line\u003c\/h2\u003e\u003cp\u003eThe U-Groove Conventional spark plug line by Denso features a distinctive U-shaped groove on the ground electrode tip. This design increases the spark exposure area, promoting better ignition and combustion efficiency. The conventional construction balances durability and performance, making it suitable for a variety of secondary ignition applications in vehicles such as the Mercedes-Benz CL65 AMG and Nissan Quest.\u003c\/p\u003e\u003ch2\u003eTechnical Details and Compatibility\u003c\/h2\u003e\u003cp\u003eThe Denso 3122 spark plug is engineered with a copper core center electrode to enhance thermal conductivity and electrical performance. The nickel material used for both the ground electrode tip and center electrode tip ensures resistance to wear and corrosion. With a flat seat and a 19 mm reach, this spark plug fits securely in compatible engines. Its 5000 ohm resistance helps minimize radio frequency interference, supporting stable engine operation.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Lexus LS400, Toyota Corolla, Mitsubishi Montero, Nissan Quest, and Mercedes-Benz S65 AMG models\u003c\/li\u003e\n\u003cli\u003eAddresses misfires caused by worn or damaged spark plugs\u003c\/li\u003e\n\u003cli\u003eHelps restore engine smoothness and fuel efficiency\u003c\/li\u003e\n\u003cli\u003eReduces ignition noise and electrical interference\u003c\/li\u003e\n\u003cli\u003eSupports consistent combustion in high-performance and daily driving conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eBefore installation, verify the spark plug gap is set to 0.8 mm as specified. Use a 16 mm socket wrench to tighten the spark plug to the manufacturer’s recommended torque. Ensure the flat seat type matches the engine’s cylinder head design to prevent compression leaks. It is advisable to inspect the ignition system components for wear during replacement to maintain optimal performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDenso spark plugs, including the 3122 part number, are manufactured to meet strict quality standards. The use of high-grade materials such as nickel and copper ensures durability and reliable ignition performance. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support long-term use in compatible Lexus, Toyota, Mitsubishi, Nissan, and Mercedes-Benz vehicles.\u003c\/p\u003e","brand":"Denso","offers":[{"title":"Default Title","offer_id":43446307750069,"sku":"BBNF-3122","price":8.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NP_3122_Fro.jpg?v=1774734391","url":"https:\/\/www.partcatalog.com\/products\/denso-3122-spark-plug","provider":"PartCatalog","version":"1.0","type":"link"}