Denso 4715 Spark Plug

Reliable Ignition Performance for Select GM and Ford Vehicles

The Denso Iridium TT spark plug, part number 4715, is engineered to deliver consistent ignition and efficient combustion for a wide range of vehicles including Buick, Chevrolet, Ford, and GMC models. Designed with advanced materials and a precise electrode configuration, this spark plug supports optimal engine performance and fuel efficiency.

• Iridium center electrode tip for enhanced durability and ignition
• Platinum twin-tip ground electrode design for improved spark stability
• Copper core center electrode for superior conductivity
• Nickel ground electrode core material for reliable wear resistance
• Pre-gap size of 1.0 mm for precise spark gap
• Tapered seat type ensuring secure fitment
• Thread diameter of 14.00 mm and reach of 11.60 mm for proper installation
• Hex size of 16.0 mm for standard wrench compatibility
• Manufacturer heat range rating of 16 for balanced thermal performance

About the Denso Iridium TT Spark Plug Line

The Iridium TT line from Denso features twin-tip ground electrodes combining iridium and platinum materials to enhance spark efficiency and electrode longevity. This design reduces voltage requirements and improves ignitability, making it suitable for secondary ignition systems in various domestic vehicles. The use of iridium on the center electrode tip ensures a longer service life compared to conventional spark plugs.

Technical Details and Compatibility

The Denso 4715 spark plug is compatible with numerous models from Buick, Cadillac, Chevrolet, Chrysler, Dodge, Ford, GMC, Jeep, Lincoln, Mercury, Oldsmobile, Plymouth, and Pontiac. Vehicles such as the Chevrolet Camaro, Ford Mustang, GMC Sierra, and Buick Century can benefit from this spark plug’s design. Its tapered seat and specific thread diameter ensure a secure and proper fit in engines requiring a 14 mm thread and 11.60 mm reach.

Common Applications and Problem Solving

• Improves ignition reliability in older GM and Ford vehicles
• Reduces misfires caused by electrode wear or corrosion
• Enhances fuel efficiency through consistent spark delivery
• Addresses rough idling and poor throttle response
• Helps maintain engine performance in vehicles with secondary ignition systems

Installation Notes and Tips

• Verify vehicle compatibility using make and model before installation
• Use a 16 mm socket wrench for proper tightening
• Check and adjust the pre-gap to 1.0 mm if necessary before installation
• Apply anti-seize compound on threads if recommended by the vehicle manufacturer
• Torque spark plugs to manufacturer specifications to avoid damage

Quality Assurance and Warranty

Denso spark plugs, including the Iridium TT 4715, are manufactured to meet OEM standards for durability and performance. The use of high-quality iridium and platinum materials ensures extended service life and consistent ignition. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship.