Denso 5326 Spark Plug

Overview of Denso Iridium Power Spark Plug 5326

The Denso Iridium Power spark plug 5326 is engineered for reliable ignition performance in a variety of vehicles including Audi, Ford, Chevrolet, and Mercedes-Benz models. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and engine responsiveness.

• Iridium center electrode tip for enhanced durability and ignition
• Tapercut, u-groove ground electrode tip design for improved spark exposure
• Copper core center electrode for optimal conductivity
• Nickel ground electrode core material with standard ground configuration
• Pre-gap size of 1.1 mm and tapered seat type for secure fitment
• Thread diameter of 14.00 mm and reach of 18.00 mm
• Hex size of 16.0 mm for installation compatibility
• Manufacturer heat range rating of 20
• Resistance rating of 5000 ohms to reduce electrical noise

Detailed Features and Specifications

The Denso Iridium Power 5326 spark plug incorporates a copper core center electrode with an iridium tip, which provides a balance of excellent conductivity and wear resistance. The ground electrode features a tapercut u-groove design, enhancing spark exposure and combustion efficiency. With a resistance of 5000 ohms, this spark plug helps minimize radio frequency interference, supporting stable engine electronics. The tapered seat and 14 mm thread diameter ensure a precise fit in compatible engines, while the 18 mm reach suits a range of ignition systems. The heat range of 20 is calibrated for optimal thermal performance in various driving conditions.

About the Iridium Power Product Line

The Iridium Power line by Denso focuses on delivering spark plugs with iridium-tipped electrodes that offer improved ignition performance and longer service life compared to conventional plugs. This product line is designed to meet the demands of modern engines requiring precise spark delivery and durability. The 5326 spark plug exemplifies these qualities with its advanced electrode materials and design features.

Compatible Vehicles and Common Applications

This spark plug is compatible with a wide range of vehicles, including models from Audi, Cadillac, Chevrolet, Dodge, Ford, Jaguar, Land Rover, Lincoln, Mazda, Mercedes-Benz, Mercury, Oldsmobile, Pontiac, and Volvo. Specific models include the Audi A8 and A8 Quattro, Ford F-150 and Mustang, Chevrolet Camaro and Corvette, and Mercedes-Benz 190E, among others.

• Resolves misfires and rough idling in compatible engines
• Improves throttle response and fuel efficiency
• Reduces ignition system electrical noise
• Supports stable engine starting and acceleration
• Helps maintain consistent combustion under varied conditions

Installation Notes and Tips

When installing the Denso Iridium Power 5326 spark plug, ensure the tapered seat is clean and free of debris for proper sealing. Use a torque wrench to tighten the plug to manufacturer specifications to avoid damage. The 16 mm hex size allows for standard spark plug socket compatibility. Verify the pre-gap size of 1.1 mm before installation, adjusting if necessary to match vehicle requirements.

Quality Assurance and Warranty

Denso manufactures the Iridium Power spark plugs to meet strict quality standards, ensuring consistent performance and durability. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Refer to vehicle manufacturer guidelines and Denso documentation for warranty coverage and installation recommendations.