Denso 4712 Spark Plug

Overview of Denso Iridium TT Spark Plug 4712

The Denso Iridium TT spark plug 4712 is engineered for reliable ignition performance in a range of vehicles including Honda Accord, Nissan Altima, Toyota Yaris, and Subaru Forester. 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 for improved ignition
• Copper core center electrode for optimal conductivity
• Flat seat type with 12mm thread diameter and 26.5mm reach
• Manufacturer heat range 22 for balanced thermal performance
• Pre-gap size of 1.0 mm for precise spark delivery
• Compatible with Acura, Infiniti, Jaguar, Land Rover, Mazda, Mercedes-Benz, Scion, and more

Detailed Features and Specifications

The Denso Iridium TT 4712 spark plug features a copper core center electrode with an iridium tip, which provides a strong and stable spark while maintaining long service life. The ground electrode uses a nickel core with a platinum twin-tip design, enhancing ignition reliability and reducing misfires. The twin-tip ground configuration improves flame kernel growth and combustion efficiency. With a resistance of 5000 ohms, this spark plug helps suppress electrical noise and interference.

The spark plug has a flat seat type, a 14.3 mm hex size for installation, and a thread diameter of 12 mm with a reach of 26.5 mm, making it suitable for a variety of engine designs. The manufacturer heat range of 22 ensures the plug operates within optimal temperature limits to prevent fouling or overheating.

Iridium TT Product Line Information

The Iridium TT line from Denso is designed to combine the benefits of iridium and platinum electrode technology. This product line focuses on delivering improved ignition performance and durability through a twin-tip ground electrode and a fine iridium center electrode. The combination supports better fuel efficiency and smoother engine starts, making it a suitable choice for vehicles requiring precise ignition components.

Applications and Common Issues Addressed

• Replacement for worn or fouled spark plugs in Honda Accord and Toyota Yaris
• Improves ignition stability in Nissan Altima and Subaru Forester engines
• Helps reduce engine misfires and rough idling
• Supports consistent combustion in Acura and Infiniti models
• Addresses spark plug wear in Land Rover and Jaguar vehicles

Installation Notes and Tips

• Ensure the spark plug gap is set to 1.0 mm before installation
• Use a 14.3 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 4712 spark plug to meet strict quality standards, ensuring reliable performance and durability. The use of premium materials such as iridium and platinum contributes to extended service life. While specific warranty details may vary, Denso products typically come with a limited warranty against manufacturing defects. Consult vehicle or part documentation for exact warranty terms.