Denso 3113 Spark Plug

Overview of Denso Double Platinum Spark Plug 3113

The Denso Double Platinum Spark Plug 3113 is engineered for reliable ignition performance in Toyota Supra vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Double platinum chip ground electrode tip for enhanced durability
• Copper core center electrode with platinum tip for stable ignition
• Standard ground configuration with nickel ground electrode core
• Pre-gap size of 0.8 mm for optimal spark gap
• Flat seat type with 14 mm thread diameter and 19 mm reach
• Hex size of 16.0 mm for easy installation
• Manufacturer heat range rating of 20
• Resistance value of 5000 ohms to reduce electrical noise

Detailed Features and Specifications

This Denso spark plug features a double platinum chip on the ground electrode tip, which improves wear resistance and extends service life compared to conventional plugs. The center electrode combines a copper core for excellent thermal conductivity with a platinum tip to maintain a consistent spark. The ground electrode uses nickel core material in a standard single-electrode configuration, balancing durability and performance. With a pre-gap size of 0.8 mm, the spark plug ensures efficient ignition timing and combustion. The flat seat design and 14 mm thread diameter provide a secure fit in the cylinder head, while the 19 mm reach suits the Toyota Supra engine specifications. The 16 mm hex size allows for straightforward installation using common tools. The manufacturer heat range of 20 indicates the plug’s ability to operate effectively under typical engine temperatures. Additionally, the 5000 ohm resistance helps minimize electromagnetic interference with vehicle electronics.

About the Double Platinum Product Line

The Denso Double Platinum line focuses on spark plugs that utilize platinum on both the center and ground electrodes. This design enhances electrode longevity and maintains stable ignition performance over time. The Double Platinum technology in part number 3113 is particularly suited for vehicles like the Toyota Supra that demand consistent spark quality and durability under varied driving conditions.

Applications and Problem Solving

• Compatible with Toyota Supra models requiring secondary ignition spark plugs
• Helps resolve misfires caused by electrode wear or gap erosion
• Reduces ignition system electrical noise due to built-in resistance
• Improves cold start performance and throttle response
• Prevents fouling and maintains combustion efficiency

Installation Notes and Tips

When installing the Denso Double Platinum Spark Plug 3113, ensure the pre-gap is set to 0.8 mm if adjustments are necessary. Use a torque wrench to tighten the plug to the manufacturer’s recommended specifications to avoid damage to the flat seat or thread. The 16 mm hex size fits standard spark plug sockets, facilitating straightforward removal and installation. Inspect the spark plug for any signs of damage before installation and replace in sets for balanced engine performance.

Quality Assurance and Warranty

Denso spark plugs are manufactured to meet strict quality standards, ensuring reliable ignition performance and durability. The Double Platinum 3113 spark plug undergoes rigorous testing for heat range, resistance, and electrode integrity. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support long-term use in compatible Toyota Supra vehicles.