Denso 3212 Spark Plug

Reliable Ignition Performance for Select Vehicles

The Denso 3212 spark plug from the U-Groove Conventional line offers dependable ignition for a range of vehicles including Chevrolet, Honda, Nissan, and Subaru models. Designed with precision materials and a unique U-groove ground electrode tip, this spark plug supports efficient combustion and consistent engine performance.

• U-groove ground electrode tip design for improved spark exposure
• Nickel ground and center electrode tips for durability
• Copper core center electrode for enhanced conductivity
• Standard ground configuration with a single ground electrode
• Flat seat type with 14mm thread diameter and 19mm reach
• Pre-gap size of 1.1 mm optimized for ignition efficiency
• Hex size of 20.6 mm for standard installation tools
• Manufacturer heat range rating of 20 for balanced heat dissipation

About the Denso U-Groove Conventional Spark Plug Line

The U-Groove Conventional spark plug line by Denso features a distinctive U-shaped groove on the ground electrode tip. This design increases the spark exposure area, which can contribute to more complete combustion and improved ignition reliability. The conventional construction uses nickel for electrode tips and copper for the center electrode core, balancing durability and electrical conductivity. The Denso 3212 spark plug is engineered to meet the ignition requirements of various domestic and import vehicles.

Technical Details and Compatibility

The Denso 3212 spark plug incorporates a nickel ground electrode tip and core material, paired with a copper core center electrode and nickel tip. This combination ensures consistent spark delivery and resistance to electrode wear. The spark plug features a flat seat type and a thread diameter of 14.00 mm with a 19.00 mm reach, suitable for many engines requiring these specifications. The pre-gap size is set at 1.1 mm, which supports optimal ignition timing and combustion efficiency. Compatible with models such as the Honda Accord, Nissan 200SX, Chevrolet S10, and Subaru Impreza, this spark plug fits a broad range of vehicles from manufacturers including Dodge, Mitsubishi, and Pontiac.

Common Applications and Problem Solving

• Restores proper ignition in engines experiencing misfires
• Improves fuel efficiency by ensuring complete combustion
• Reduces rough idling caused by worn or damaged spark plugs
• Helps maintain engine power and acceleration performance
• Prevents starting difficulties related to faulty spark plugs

Installation Notes and Tips

When installing the Denso 3212 spark plug, ensure the pre-gap is checked and adjusted if necessary to 1.1 mm for optimal performance. Use a 20.6 mm socket wrench to tighten the spark plug to the manufacturer’s recommended torque specification. The flat seat design requires proper seating to avoid compression leaks. It is advisable to inspect the ignition system components and replace spark plugs in sets to maintain balanced engine operation.

Quality Assurance and Warranty

Denso spark plugs are manufactured to meet strict quality standards, utilizing high-grade materials such as nickel and copper for electrode construction. The 3212 spark plug undergoes rigorous testing to ensure durability and consistent performance. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support reliable ignition system operation.