Denso 5702 Spark Plug

Overview of Denso Iridium Racing Spark Plug 5702

The Denso Iridium Racing spark plug 5702 is engineered for drivers seeking reliable ignition performance. Designed with advanced materials and precise specifications, it supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability
• Full platinum ground electrode tip design
• Slant ground configuration with a single ground electrode
• Copper core center electrode for optimal conductivity
• Flat seat type with 19.00 mm reach and 14.00 mm thread diameter
• Pre-gap size of 0.7 mm for precise spark delivery
• Hex size of 16.0 mm for standard installation tools
• Manufacturer heat range rating of 27

Detailed Features and Specifications

The Denso Iridium Racing 5702 spark plug incorporates a copper core center electrode with an iridium tip, providing a balance of excellent conductivity and wear resistance. The ground electrode features a full platinum tip and a slant configuration, which helps maintain a stable spark and reduces electrode wear. With a single ground electrode made from nickel, this spark plug ensures consistent ignition performance. The flat seat design and 19.00 mm reach make it compatible with various engine types requiring this specification. The 0.7 mm pre-gap size is factory set to optimize spark efficiency and combustion.

About the Iridium Racing Product Line

The Iridium Racing line by Denso focuses on delivering spark plugs that combine durability with performance. Utilizing iridium and platinum materials, these plugs are designed to withstand high temperatures and provide stable ignition under demanding conditions. The 5702 model fits within this line by offering advanced electrode materials and precise engineering to support racing and high-performance applications.

Applications and Problem Solving

• Improves ignition reliability in high-performance engines
• Reduces misfires caused by electrode wear
• Enhances fuel efficiency through consistent spark delivery
• Minimizes fouling in engines with demanding combustion cycles
• Supports stable engine operation under varied driving conditions

Installation Notes and Tips

When installing the Denso Iridium Racing 5702 spark plug, ensure the engine is cool to prevent thread damage. Use a torque wrench to tighten the plug to manufacturer specifications, avoiding over-tightening. The 16.0 mm hex size fits standard spark plug sockets. Verify the pre-gap size of 0.7 mm before installation, adjusting only if necessary to match vehicle requirements.

Quality Assurance and Warranty

Denso manufactures the Iridium Racing 5702 spark plug to meet strict quality standards, ensuring consistent performance and durability. While specific warranty details are not provided, Denso products typically come with manufacturer-backed quality assurance. Refer to vehicle and part documentation for warranty coverage related to this spark plug.