Denso 5345 Spark Plug

Reliable Ignition Performance for Select Audi, Lexus, and Porsche Models

The Denso Iridium Power 5345 spark plug is engineered to deliver consistent ignition and efficient combustion for vehicles such as the Audi 911, Lexus GS300, and Porsche Cayman. Designed with advanced materials and precise specifications, this spark plug supports optimal engine performance and fuel efficiency.

• Iridium center electrode tip for enhanced durability and ignition
• Tapercut ground electrode tip with u-groove design for improved spark exposure
• Copper core center electrode for superior conductivity
• Nickel ground electrode core material with standard ground configuration
• Pre-gap size of 0.8 mm and flat seat type for precise fitment
• Heat range 22 suitable for high-performance applications
• Thread diameter 14.00 mm and reach of 26.50 mm for proper installation
• Hex size 16.0 mm for easy tightening

About the Denso Iridium Power Spark Plug Line

The Iridium Power line from Denso focuses on delivering spark plugs with iridium-tipped electrodes that provide a stable and reliable spark. This technology enhances ignition efficiency and contributes to smoother engine operation. The 5345 model incorporates these features to meet the demands of secondary ignition systems in various performance and luxury vehicles.

Technical Details and Application

The Denso 5345 spark plug features a copper core center electrode with an iridium tip, combining excellent electrical conductivity with long-lasting wear resistance. The tapercut ground electrode with a u-groove design increases spark exposure, promoting better combustion. With a resistance rating of 5000 ohms, this spark plug helps reduce electrical noise and interference. Its flat seat and precise thread diameter ensure compatibility with specific models from Audi, Lexus, Mitsubishi, Porsche, and Subaru.

Compatible Vehicles and Common Issues Addressed

• Compatible with Audi 911, Boxster, Cayenne, Cayman, and TT RS Quattro
• Fits Lexus GS200t, GS300, IS200t, IS300, NX200t, NX300, RC200t, RC300
• Suitable for Mitsubishi Lancer models
• Works with Subaru Outback models
• Addresses issues such as misfires, rough idling, poor fuel economy, hard starts, and reduced engine power

Installation Notes and Tips

• Verify correct spark plug gap of 0.8 mm before installation
• Use a 16 mm socket wrench for proper tightening torque
• Ensure the flat seat type matches the engine’s cylinder head design
• Check thread engagement carefully to avoid cross-threading with the 14 mm diameter
• Recommended heat range 22 is designed for specific engine operating conditions; confirm compatibility with vehicle manufacturer guidelines

Quality Assurance and Warranty

Denso spark plugs, including the Iridium Power 5345, are manufactured to meet strict quality standards for durability and performance. While specific warranty details may vary, Denso products typically come with a limited warranty against manufacturing defects. Always consult product documentation or authorized sources for warranty terms.