Denso 5310 Spark Plug - Intake Side

Reliable Ignition Performance for Select Vehicles

The Denso Iridium Power 5310 spark plug is engineered to deliver consistent ignition performance for a range of vehicles including Audi, Honda, Nissan, and Volkswagen models. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and engine responsiveness.

• 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 0.8 mm and flat seat type for proper fitment
• Hex size of 16.0 mm and thread diameter of 14.0 mm
• Manufacturer heat range of 22 suitable for various driving conditions
• Reach length of 19.00 mm ensuring compatibility with specified engines

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 balance of durability and ignition efficiency. This technology supports improved throttle response and stable combustion, making it suitable for vehicles requiring precise ignition timing and reliable spark delivery. The 5310 part number is part of this line, offering features tailored to secondary ignition systems in multiple vehicle makes and models.

Technical Details and Compatibility

The Denso 5310 spark plug features a single ground electrode with a tapercut and u-groove design, which enhances spark exposure and combustion efficiency. The copper core center electrode improves electrical conductivity, while the iridium tip ensures long service life and consistent ignition. With a resistance rating of 5000 ohms, this spark plug supports stable electrical performance. Its flat seat and 19.00 mm reach make it compatible with various engines in Audi A3, A4, A5, and A6 Quattro models, Honda Civic, Nissan Altima, Volkswagen Golf, and other vehicles listed in the fitment.

Common Applications and Problem Solving

• Restores engine misfire issues caused by worn or fouled spark plugs
• Improves throttle response and acceleration in compatible vehicles
• Reduces rough idling and enhances fuel combustion efficiency
• Supports stable ignition in vehicles experiencing starting difficulties
• Helps maintain optimal engine performance in Audi, Honda, Nissan, and Volkswagen models

Installation Notes and Tips

When installing the Denso Iridium Power 5310 spark plug, ensure the pre-gap size of 0.8 mm is maintained for optimal performance. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid damage to the flat seat or thread. This spark plug is designed for secondary ignition systems and requires proper handling to maintain electrode integrity. Always verify compatibility with your vehicle’s make and model before installation.

Quality Assurance and Warranty

Denso manufactures the 5310 spark plug to meet strict quality standards, ensuring reliable ignition performance and durability. The use of iridium and copper materials contributes to extended service life and consistent operation. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support customer confidence in fitment and function.