Denso 4052 Spark Plug

Reliable Ignition with Denso U-Groove Conventional Spark Plug 4052

The Denso U-Groove Conventional Spark Plug 4052 is engineered to provide consistent ignition performance for a variety of vehicles. Designed with a U-groove ground electrode tip and durable materials, this spark plug supports efficient combustion and engine reliability.

• U-groove ground electrode tip design for improved spark exposure
• Standard ground configuration with a single ground electrode
• Nickel ground electrode core and tip for durability
• Copper center electrode core with nickel tip for optimal conductivity
• Pre-gap size of 0.7 mm for precise spark gap
• Flat seat type with 14.00 mm thread diameter and 12.70 mm reach
• Hex size of 20.6 mm for standard installation tools
• Manufacturer heat range of 27 suitable for moderate operating temperatures

About the U-Groove Conventional Product Line

The Denso U-Groove Conventional spark plug line features a unique U-groove ground electrode tip design that enhances spark exposure to the air-fuel mixture. This design supports stable ignition and efficient combustion, making it a practical choice for vehicles requiring conventional spark plugs with reliable performance characteristics.

Technical Details and Performance

This spark plug incorporates a nickel ground electrode core and tip, providing resistance to wear and corrosion. The copper center electrode core ensures excellent thermal conductivity, which helps maintain consistent spark energy. With a pre-gap size of 0.7 mm and a flat seat type, the Denso 4052 spark plug is designed for precise fitment and optimal ignition timing. The 14.00 mm thread diameter and 12.70 mm reach make it compatible with many vehicle engines requiring these specifications.

Common Applications and Problem Solving

• Restores engine misfire issues caused by worn or fouled spark plugs
• Improves cold start performance in vehicles like Toyota Camry and Honda Accord
• Reduces rough idling and hesitation during acceleration
• Helps maintain fuel efficiency by ensuring proper combustion
• Supports stable ignition in moderate heat range engine conditions

Installation Notes and Tips

When installing the Denso 4052 spark plug, ensure the pre-gap of 0.7 mm is maintained for optimal performance. Use a 20.6 mm socket wrench for proper tightening torque. The flat seat design requires careful seating to avoid leaks or misalignment. It is recommended to check the vehicle manufacturer’s specifications for spark plug reach and thread diameter compatibility before installation.

Quality Assurance and Warranty

Denso spark plugs are manufactured to meet strict quality standards, ensuring reliable ignition performance and durability. The U-Groove Conventional 4052 spark plug undergoes rigorous testing for heat range and electrode integrity. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.