Denso 5341 Spark Plug

Overview of Denso Iridium Power Spark Plug 5341

The Denso Iridium Power spark plug 5341 is engineered for reliable ignition performance in Ford Focus vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Iridium center electrode tip for enhanced durability
• Tapercut, u-groove ground electrode tip design
• Nickel ground electrode core material
• Copper center electrode core for optimal conductivity
• Standard ground configuration with a single ground electrode
• Pre-gap size of 0.8 mm for precise spark delivery
• 16.0 mm hex size for easy installation
• Tapered seat type ensuring proper fit and seal
• Thread diameter of 14.00 mm and reach of 25.00 mm
• Manufacturer heat range rating of 24
• Resistance value of 5000 ohms to reduce electrical noise

Details on the Iridium Power Product Line

The Iridium Power line by Denso focuses on delivering spark plugs with iridium-tipped center electrodes, which provide a balance of durability and efficient ignition. This product line is designed to improve ignition stability and maintain performance over extended use, making it suitable for vehicles like the Ford Focus that require consistent spark plug operation under various driving conditions.

Technical Description of the Spark Plug

The Denso 5341 spark plug features a copper core center electrode with an iridium tip, combining excellent thermal conductivity with a hard-wearing surface for long service life. The ground electrode uses a nickel core with a tapercut and u-groove tip design to optimize spark exposure and combustion efficiency. The spark plug’s resistance of 5000 ohms helps minimize electromagnetic interference with vehicle electronics. Its tapered seat and 14 mm thread diameter ensure a secure fit in the cylinder head, while the 25 mm reach and 0.8 mm pre-gap size are tailored for the Ford Focus engine specifications.

Compatible Vehicles and Common Applications

• Replacement spark plug for Ford Focus models requiring part number 5341
• Addresses issues such as misfires, rough idling, and poor fuel economy
• Helps resolve ignition-related starting difficulties
• Supports stable engine performance under varying load conditions
• Suitable for maintenance and repair of secondary ignition systems

Installation Notes and Tips

When installing the Denso Iridium Power 5341 spark plug, ensure the engine is cool to prevent damage to the threads. Use a torque wrench to tighten the spark plug to the manufacturer’s recommended specifications to avoid over-tightening or under-tightening. Verify the pre-gap size of 0.8 mm before installation, adjusting if necessary. The 16 mm hex size allows for compatibility with standard spark plug sockets, facilitating straightforward replacement in the Ford Focus ignition system.

Quality Assurance and Warranty

Denso manufactures the 5341 spark plug to meet strict quality standards, ensuring consistent performance and durability. The use of iridium and copper materials contributes to the longevity of the spark plug under normal operating conditions. While specific warranty details are not provided, Denso products typically come with manufacturer-backed quality assurance to support reliability in automotive ignition applications.