Denso 4703 Spark Plug

Overview of Denso Iridium TT Spark Plug 4703

The Denso Iridium TT spark plug 4703 is engineered for reliable ignition performance across a wide range of vehicles including Toyota Camry, Nissan Altima, and Jeep Grand Cherokee. Designed with advanced materials and a twin-tip ground electrode, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability
• Platinum twin-tip ground electrode design
• Copper core center electrode for improved conductivity
• Flat seat type with 14mm thread diameter and 26.5mm reach
• Manufacturer heat range 16 for optimal temperature control
• Pre-gap size of 1.0 mm for precise spark delivery
• Hex size 16 mm for standard installation tools

Detailed Features and Specifications

The Denso Iridium TT 4703 spark plug features a copper core center electrode with an iridium tip, which provides a balance of excellent conductivity and wear resistance. The ground electrode uses a nickel core with a platinum twin-tip design, enhancing spark efficiency and electrode longevity. The single ground electrode with a twin-tip configuration helps improve ignition reliability and fuel combustion. With a flat seat and a thread diameter of 14.00 mm, this spark plug fits securely in compatible engines. The 26.50 mm reach and a pre-gap size of 1.0 mm ensure proper spark gap for optimal ignition performance. The manufacturer heat range of 16 is suitable for a variety of driving conditions, helping to prevent fouling and overheating.

About the Iridium TT Product Line

The Denso Iridium TT line is designed to combine the benefits of iridium and platinum electrode technology. This product line focuses on delivering long service life and stable ignition performance. The twin-tip ground electrode design reduces voltage requirements and improves ignitability, making it suitable for vehicles such as the Hyundai Sonata, Lexus ES300h, and Ram 1500. The 4703 spark plug is part of this line, offering a balance of durability and efficient combustion for secondary ignition systems.

Compatible Vehicles and Applications

• Chrysler 300, Dodge Charger, Jeep Grand Cherokee
• Nissan Altima, Frontier, Maxima
• Toyota Camry, 4Runner, Highlander
• Hyundai Sonata, Santa Fe, Tucson
• Ram 1500, 2500, 3500

This spark plug is designed for secondary ignition systems in these vehicles, helping to maintain smooth engine operation and fuel efficiency.

Installation Notes and Tips

• Ensure the spark plug gap is set to 1.0 mm before installation
• Use a 16 mm socket wrench for proper tightening
• Apply anti-seize compound on threads if recommended by the vehicle manufacturer
• Torque to manufacturer specifications to avoid damage
• Inspect ignition coils and wires during replacement for optimal performance

Quality Assurance and Warranty

Denso manufactures the Iridium TT 4703 spark plug to meet strict quality standards, ensuring consistent performance and durability. The use of iridium and platinum materials contributes to extended service life compared to conventional spark plugs. Warranty coverage details vary by region and vehicle application; consult the vehicle manufacturer or Denso documentation for specific warranty information.