Denso 5317 Spark Plug

Overview of Denso Iridium Power Spark Plug 5317

The Denso Iridium Power spark plug 5317 is engineered for reliable secondary ignition performance. Designed with advanced materials and precise specifications, it supports efficient combustion and consistent engine operation in compatible vehicles.

• Iridium center electrode tip for enhanced durability
• Tapercut, u-groove ground electrode tip design
• Copper core center electrode for improved conductivity
• Nickel ground electrode core material with standard ground configuration
• Flat seat type with 14.00 mm thread diameter and 19.00 mm reach
• Pre-gap size of 0.7 mm and manufacturer heat range of 27
• Hex size of 20.6 mm for installation
• Resistance rating of 5000 ohms

Detailed Features and Specifications

The Denso Iridium Power 5317 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, optimizing spark exposure and combustion efficiency. With a single ground electrode and a standard ground configuration, this spark plug maintains consistent ignition performance. The flat seat type ensures proper sealing in the combustion chamber, while the 14.00 mm thread diameter and 19.00 mm reach accommodate specific engine designs. The pre-gap size of 0.7 mm is factory set to meet manufacturer specifications, and the heat range of 27 aligns with the thermal requirements of compatible engines. The 20.6 mm hex size allows for straightforward installation using common tools. Additionally, the 5000 ohm resistance rating helps reduce electromagnetic interference with vehicle electronics.

About the Iridium Power Product Line

The Iridium Power line by Denso focuses on delivering spark plugs with iridium-tipped center electrodes, which offer enhanced durability and stable ignition performance compared to conventional plugs. This product line is designed to improve throttle response and fuel efficiency while maintaining long service intervals. The 5317 spark plug is part of this line, benefiting from the advanced materials and design features that characterize Iridium Power products.

Applications and Problem Solving

• Compatible with vehicles requiring a 14 mm thread diameter and 19 mm reach spark plug
• Addresses issues related to inconsistent ignition and misfires
• Helps reduce spark plug wear and electrode erosion
• Improves combustion efficiency for smoother engine operation
• Reduces electromagnetic interference affecting vehicle electronics

Installation Notes and Tips

Ensure the spark plug gap is set to 0.7 mm before installation if adjustment is necessary. Use a 20.6 mm socket wrench for proper tightening to avoid damage to the electrode or threads. Verify compatibility with your vehicle’s make and model, focusing on thread diameter, reach, and heat range specifications. Avoid over-tightening to prevent thread damage or improper sealing.

Quality Assurance and Warranty

Denso manufactures the Iridium Power 5317 spark plug to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details are not provided here, Denso products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Consult your vehicle’s service manual or Denso’s official documentation for warranty information related to this part.