Denso 3004 Spark Plug

Reliable Ignition Performance for Multiple Vehicle Makes

The Denso Double Platinum 3004 spark plug is engineered to deliver consistent ignition performance across a wide range of vehicles, including BMW, Ford, Honda, Toyota, and more. Designed with durable platinum electrodes and optimized resistance, this spark plug supports efficient combustion and engine reliability.

• Double platinum chip on ground electrode tip for enhanced durability
• 5000 ohm resistance to reduce electrical interference
• Copper core center electrode with platinum tip for improved conductivity
• Standard ground configuration with nickel core ground electrode
• Flat seat type with 14mm thread diameter and 19mm reach
• Pre-gap size of 1.1 mm for precise spark delivery
• Hex size of 20.6 mm for easy installation
• Manufacturer heat range of 16 suitable for various engine conditions

About the Denso Double Platinum Spark Plug Line

The Double Platinum line from Denso features spark plugs with platinum on both the center and ground electrodes, providing longer service life and stable performance compared to conventional plugs. This design reduces electrode wear and maintains consistent spark gaps, which is critical for vehicles like the BMW 325i, Ford Mustang, and Toyota Camry that require reliable ignition under diverse driving conditions.

Technical Details and Compatibility

The Denso 3004 spark plug incorporates a copper core center electrode with a platinum tip, enhancing thermal conductivity and electrical performance. The ground electrode features a platinum chip tip and a nickel core, ensuring durability and resistance to wear. With a resistance rating of 5000 ohms, this spark plug minimizes radio frequency interference, protecting sensitive vehicle electronics. Its flat seat design and 14 mm thread diameter make it compatible with a broad range of models, including the Honda Accord, Jeep Cherokee, and Mercedes-Benz 380SEL.

Common Applications and Problem Solving

• Improves engine misfire issues in vehicles like the Dodge Ramcharger and Mazda 626
• Reduces rough idling and hesitation in models such as the Chevrolet Camaro and Nissan Sentra
• Enhances fuel efficiency and smooth acceleration for cars like the Volkswagen Jetta and Hyundai Sonata
• Supports stable ignition in high-performance engines including the Porsche 944 and Jaguar XJ6
• Helps maintain consistent spark gap to prevent starting difficulties in older models like the Buick LeSabre and Plymouth Sundance

Installation Notes and Tips

When installing the Denso Double Platinum 3004 spark plug, ensure the pre-gap size of 1.1 mm is maintained for optimal performance. Use a 20.6 mm socket wrench for proper torque application. The flat seat design requires careful seating to avoid damage to the cylinder head. It is recommended to replace spark plugs in sets to maintain balanced engine operation, especially in vehicles such as the Cadillac DeVille and Land Rover Defender 90.

Quality Assurance and Warranty

Denso manufactures the 3004 spark plug to meet strict OEM standards, ensuring reliable ignition and durability. The use of platinum electrodes extends service life compared to standard spark plugs. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support long-term vehicle performance.