Denso 3326 Spark Plug

Reliable Ignition Performance for Audi and Volkswagen Vehicles

The Denso Double Platinum 3326 spark plug is engineered to deliver consistent ignition performance for select Audi and Volkswagen models. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

• Double platinum electrodes for enhanced durability and stable spark
• 5000 ohm resistance to reduce electrical interference
• Platinum chip ground electrode tip for improved wear resistance
• Copper core center electrode with platinum tip for optimal conductivity
• Standard ground configuration with a single ground electrode
• Flat seat type with 14mm thread diameter and 19mm reach
• Pre-gap size of 0.8 mm for precise ignition timing
• Hex size of 16.0 mm for easy installation
• Manufacturer heat range rating of 20 suitable for specified applications

About the Denso Double Platinum Spark Plug Line

The Double Platinum line from Denso features spark plugs with platinum material on both the center and ground electrodes. This design enhances electrode longevity and maintains consistent spark quality over time. The 3326 part number benefits from this technology, providing reliable ignition performance for vehicles requiring durable secondary ignition components.

Technical Details and Compatibility

The Denso 3326 spark plug incorporates a copper core center electrode with a platinum tip, which improves thermal conductivity and spark efficiency. The ground electrode uses a nickel core with a platinum chip tip, designed to resist wear and maintain a stable spark gap. With a resistance of 5000 ohms, this spark plug helps minimize radio frequency interference. Its flat seat and 14mm thread diameter ensure proper fitment in compatible engines.

This spark plug is compatible with various Audi and Volkswagen models, including the Audi A8 Quattro and Volkswagen Beetle, Golf, Jetta, Passat, and Phaeton. The 19mm reach and 0.8mm pre-gap size are optimized for these vehicles' ignition systems.

Common Applications and Issues Addressed

• Replacement for worn or fouled spark plugs in Audi A8 Quattro and Volkswagen models
• Improves engine misfire issues caused by electrode wear
• Helps restore smooth idling and acceleration performance
• Reduces ignition system electrical noise due to built-in resistance
• Supports fuel efficiency by maintaining consistent spark quality

Installation Notes and Tips

When installing the Denso 3326 spark plug, ensure the engine is cool to prevent damage to the threads. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid over-tightening. Verify the pre-gap size of 0.8 mm before installation, adjusting if necessary. The 16.0 mm hex size allows for standard spark plug socket compatibility.

Quality Assurance and Warranty

Denso spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Double Platinum 3326 spark plug undergoes rigorous testing for material integrity and electrical performance. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support long-term use in compatible Audi and Volkswagen vehicles.