Denso 5340 Spark Plug

Overview of Denso Iridium Power Spark Plug 5340

The Denso Iridium Power spark plug 5340 is engineered for reliable ignition performance in Cadillac CTS and XTS models. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and engine responsiveness.

• Iridium center electrode tip for enhanced durability
• Tapercut, u-groove ground electrode tip design
• Copper core center electrode for optimal conductivity
• Nickel ground electrode core material with standard ground configuration
• Pre-gap size of 0.8 mm and a single ground electrode
• 16.0 mm hex size with a 25.00 mm reach and 14.00 mm thread diameter
• Tapered seat type with manufacturer heat range 22
• Resistance rating of 5000 ohms

Detailed Features and Specifications

The Denso Iridium Power 5340 spark plug incorporates a copper core center electrode with an iridium tip, which provides a balance of excellent electrical conductivity and wear resistance. The ground electrode features a tapercut u-groove design made from nickel, contributing to consistent spark delivery and longevity. With a pre-gap size of 0.8 mm and a single ground electrode, this spark plug is optimized for efficient ignition in Cadillac CTS and XTS engines. The tapered seat ensures proper sealing, while the 25.00 mm reach and 14.00 mm thread diameter match factory specifications for these vehicles. The resistance of 5000 ohms helps reduce electromagnetic interference, supporting stable engine electronics.

About the Iridium Power Product Line

Denso's Iridium Power line focuses on delivering spark plugs with iridium-tipped center electrodes, which offer improved ignition performance and durability compared to conventional plugs. The 5340 model benefits from this technology, providing Cadillac CTS and XTS owners with a spark plug designed to maintain consistent combustion and engine efficiency over time.

Applications and Problem Solving

• Compatible with Cadillac CTS and XTS models requiring precise ignition components
• Addresses issues related to misfires and rough idling
• Helps improve throttle response and fuel efficiency
• Reduces spark plug wear and extends service intervals
• Minimizes electromagnetic interference affecting engine sensors

Installation Notes and Tips

When installing the Denso Iridium Power 5340 spark plug, ensure the tapered seat is clean and free of debris for proper sealing. Use a torque wrench to tighten to manufacturer specifications to avoid damage to the threads or seat. Verify the pre-gap size of 0.8 mm before installation, adjusting if necessary. This spark plug is designed specifically for Cadillac CTS and XTS engines, so confirm vehicle compatibility prior to installation.

Quality Assurance and Warranty

Denso manufactures the Iridium Power 5340 spark plug to meet strict quality standards, ensuring reliable performance and durability. The use of premium materials such as iridium and copper contributes to consistent ignition and long service life. Warranty coverage details should be confirmed with the vehicle manufacturer or authorized Denso distributor.