Denso 3301 Spark Plug

Reliable Ignition Performance for Select Vehicle Models

The Denso Double Platinum 3301 spark plug is engineered to deliver consistent ignition performance for a range of vehicles including Audi A6, Toyota Corolla, and Nissan Pathfinder. 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
• Center electrode core made of copper for optimal conductivity
• Ground electrode tip features a platinum chip for extended wear
• Standard ground configuration with nickel core material
• Pre-gap size of 0.8 mm for precise ignition timing
• Flat seat type with 14 mm thread diameter and 19 mm reach
• Hex size of 16.0 mm for easy installation
• Manufacturer heat range rating of 16 suitable for various driving conditions
• Resistance value of 5000 ohms to reduce electrical noise interference

About the Denso Double Platinum Spark Plug Line

The Double Platinum line from Denso is designed to provide a balance of durability and performance by utilizing platinum on both the center and ground electrodes. This design helps maintain a stable spark over time, reducing electrode wear and supporting consistent engine operation. The 3301 spark plug benefits from this technology, making it suitable for vehicles requiring reliable secondary ignition components.

Technical Details and Compatibility

The Denso 3301 spark plug features a copper core center electrode with a platinum tip, which enhances electrical conductivity and longevity. The ground electrode uses a nickel core with a platinum chip tip, contributing to wear resistance. With a pre-gap size of 0.8 mm and a flat seat design, this spark plug fits securely in engines designed for a 14 mm thread diameter and 19 mm reach. Compatible with various makes and models such as the Audi A6, Toyota Corolla, Nissan Pathfinder, Lexus LX450, and Chevrolet Corvette, this part number 3301 is a precise replacement for secondary ignition needs.

Common Applications and Problem Solving

• Restores proper ignition in vehicles experiencing misfires or rough idling
• Addresses poor fuel economy caused by inefficient spark plugs
• Reduces engine hesitation during acceleration
• Helps prevent ignition coil damage due to consistent spark delivery
• Improves cold start performance in compatible models

Installation Notes and Tips

When installing the Denso Double Platinum 3301 spark plug, ensure the engine is cool to avoid thread damage. Use a torque wrench to tighten the spark plug to the manufacturer’s specifications, typically around 18-22 ft-lbs, to prevent over-tightening. Verify the pre-gap size of 0.8 mm before installation, adjusting if necessary. The 16 mm hex size allows for standard spark plug socket compatibility, facilitating straightforward replacement in vehicles like the Toyota Tacoma and Infiniti G20.

Quality Assurance and Warranty

Denso manufactures the 3301 spark plug to meet strict OEM standards, ensuring reliable performance and durability. The Double Platinum line undergoes rigorous testing for heat range, resistance, and electrode wear. While specific warranty details may vary by retailer, Denso products generally come with a limited warranty covering defects in materials and workmanship.