Denso 5383 Spark Plug

Overview of Denso Iridium Power Spark Plug 5383

The Denso Iridium Power spark plug 5383 is engineered for reliable secondary ignition performance. Designed with advanced materials and precise specifications, it supports efficient combustion in various vehicle makes and models requiring a 14mm thread diameter and 12.7mm reach.

• Iridium center electrode tip for enhanced durability
• Tapercut, u-groove ground electrode tip design
• Nickel ground electrode core material with standard ground configuration
• 0.8 mm pre-gap size optimized for ignition efficiency
• Flat seat type with 16.0 mm hex size for secure installation
• Manufacturer heat range of 22 suitable for moderate engine temperatures
• Single ground electrode for consistent spark delivery

Detailed Product Features and Specifications

The Denso Iridium Power 5383 spark plug features a copper core center electrode with an iridium tip, combining excellent conductivity with wear resistance. The ground electrode uses nickel core material shaped in a tapercut, u-groove design to improve spark exposure and combustion efficiency. With a pre-gap size of 0.8 mm, this spark plug ensures optimal spark gap for ignition timing. The flat seat type and 14 mm thread diameter with a 12.7 mm reach make it compatible with a range of vehicles requiring these dimensions. The hex size of 16.0 mm allows for standard socket wrench installation. The heat range 22 rating indicates suitability for engines operating under normal to slightly elevated temperatures.

Iridium Power Brand Line Information

The Iridium Power line by Denso focuses on delivering spark plugs with iridium-tipped electrodes that provide improved ignition performance and longer service life compared to conventional plugs. This product line is designed to meet the demands of modern engines by enhancing combustion efficiency and reducing electrode wear, which can contribute to consistent engine performance over time.

Applications and Common Issues Addressed

• Replacement for worn or fouled spark plugs in compatible vehicles
• Improves ignition reliability in engines experiencing misfires
• Helps restore engine power and fuel efficiency
• Reduces rough idling caused by inconsistent spark delivery
• Supports stable combustion in vehicles with secondary ignition system requirements

Installation Notes and Tips

Ensure the spark plug gap is set to 0.8 mm before installation if adjustment is necessary. Use a 16 mm socket wrench to tighten the spark plug to the manufacturer’s recommended torque specification. Verify compatibility with your vehicle’s engine specifications, particularly thread diameter (14 mm) and reach (12.7 mm), to avoid damage. It is advisable to replace spark plugs in sets to maintain balanced engine performance.

Quality Assurance and Warranty

Denso manufactures the Iridium Power 5383 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 and service information.