Denso 5343 Spark Plug

Overview of Denso Iridium Power Spark Plug 5343

The Denso Iridium Power spark plug 5343 is engineered for reliable ignition performance in a wide range of vehicles including Toyota Camry, Nissan Altima, and Jeep Grand Cherokee. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability and ignition
• Tapercut, u-groove ground electrode tip design for improved spark exposure
• Copper core center electrode for optimal conductivity
• Nickel ground electrode core material with standard ground configuration
• Pre-gap size of 1.1 mm and flat seat type for proper fitment
• Thread diameter of 14.00 mm and reach of 26.50 mm for compatibility
• Hex size 16.0 mm for installation with standard tools
• Manufacturer heat range 16 suitable for various driving conditions
• Resistance rating of 5000 ohms to reduce electrical noise

Detailed Product Features and Specifications

The Denso Iridium Power 5343 spark plug features a fine iridium tip on the center electrode, which provides a stable and efficient spark while maintaining long service life. The copper core center electrode enhances thermal conductivity, helping to dissipate heat effectively. The ground electrode uses a nickel core with a tapercut and u-groove tip design, which increases spark exposure and improves ignition reliability. With a pre-gap size of 1.1 mm and a flat seat type, this spark plug ensures proper sealing and fitment in compatible engines. The thread diameter of 14.00 mm and reach of 26.50 mm make it suitable for various models from Chrysler, Dodge, Hyundai, Nissan, Toyota, and more.

About the Iridium Power Product Line

The Denso Iridium Power line is designed to deliver enhanced ignition performance through the use of iridium-tipped electrodes. This product line focuses on improving spark efficiency and durability compared to conventional spark plugs. The 5343 spark plug benefits from this technology by providing consistent ignition and longer service intervals, making it a suitable choice for vehicles requiring reliable secondary ignition components.

Compatible Vehicles and Common Applications

• Replacement for spark plugs in Toyota Camry, 4Runner, and Tundra models
• Suitable for Nissan Altima, Maxima, and Frontier engines
• Compatible with Jeep Grand Cherokee, Wrangler, and Renegade
• Fits Chrysler 300, Dodge Charger, and Ram 1500 series
• Applicable for Hyundai Sonata, Kia Sportage, and Lexus ES300h

Installation Notes and Tips

• Verify correct spark plug gap before installation; factory pre-gap is 1.1 mm
• Use a 16 mm socket wrench for proper tightening torque
• Ensure threads are clean and free of debris to avoid cross-threading
• Apply anti-seize compound if recommended by vehicle manufacturer
• Torque to manufacturer specifications to prevent damage or poor sealing

Quality Assurance and Warranty

Denso manufactures the Iridium Power 5343 spark plug to meet strict OEM standards for fit, form, and function. The use of high-quality materials such as iridium and copper ensures durability and consistent performance. While specific warranty details may vary by distributor, Denso products typically come with a limited warranty covering defects in materials and workmanship.