Denso 5090 Spark Plug

Overview of Denso Iridium Long Life Spark Plug 5090

The Denso Iridium Long Life Spark Plug 5090 is engineered for reliable ignition performance in a variety of vehicles including Buick, Chevrolet, Ford, and GMC models. Designed with advanced materials, this spark plug supports efficient combustion and long service intervals.

• Iridium center electrode tip for enhanced durability
• Platinum chip ground electrode tip for stable spark
• Copper core center electrode for improved conductivity
• Standard ground configuration with nickel core ground electrode
• Pre-gap size of 1.0 mm for optimal spark gap
• Tapered seat type and 14 mm thread diameter for secure fit
• Hex size of 16 mm for easy installation
• Manufacturer heat range of 16 suitable for various engine conditions
• 18 mm reach for compatibility with multiple engine designs

Detailed Product Features and Materials

The Denso 5090 spark plug features an iridium tip on the center electrode, which provides a fine electrode that requires less voltage to generate a spark, improving ignition efficiency. The copper core center electrode enhances thermal conductivity, helping to dissipate heat effectively. The ground electrode incorporates a platinum chip tip, which contributes to consistent spark performance and extended electrode life. The nickel core ground electrode and standard ground configuration ensure durability and reliable grounding. With a pre-gap size of 1.0 mm, this spark plug is optimized for precise ignition timing and combustion.

Iridium Long Life Product Line

The Iridium Long Life line from Denso focuses on durability and consistent ignition performance. This product line utilizes iridium and platinum materials to extend spark plug life and maintain stable combustion over time. The 5090 spark plug benefits from this technology, making it suitable for vehicles requiring long-lasting ignition components.

Compatible Vehicles and Applications

This spark plug is compatible with a wide range of vehicles, including Buick LaCrosse, Chevrolet Silverado 1500, Ford Mustang, GMC Sierra 2500, and Cadillac Escalade, among others. It is designed for secondary ignition systems in models such as the Chevrolet Camaro, Ford Taurus, GMC Yukon XL 1500, and Pontiac G6.

• Resolves misfires and rough idling issues
• Improves cold start performance
• Reduces engine hesitation and stalling
• Enhances fuel efficiency by ensuring complete combustion
• Prevents electrode wear and corrosion over time

Installation Notes and Tips

When installing the Denso 5090 spark plug, ensure the tapered seat is clean and free of debris for proper sealing. Use a torque wrench to tighten the spark 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 1.0 mm before installation, adjusting if necessary to match vehicle requirements.

Quality Assurance and Warranty

Denso manufactures the 5090 spark plug to meet OEM standards, ensuring consistent quality and performance. The use of iridium and platinum materials contributes to extended service life. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship.