NGK 5659 Spark Plug Wire Set

Reliable Ignition Performance for Mazda Miata and Protege

The NGK Spark Plug Wire Set 5659 is designed specifically for Mazda Miata, Protege, and Protege5 models, ensuring precise fitment and optimal ignition performance. Featuring durable silicone insulation and advanced noise suppression, this spark plug wire set supports consistent engine operation and reduces electrical interference.

• Insulation Color: Blue for easy identification
• High-quality silicone insulation material for heat resistance
• Noise suppression technology to minimize radio frequency interference
• Magnetic core with variable pitch for improved signal transmission
• Specific fitment for Mazda Miata, Protege, and Protege5
• Insulation outside diameter of 5.00 mm for durability and flexibility
• Part Number: 5659 (Rc-ze76)

About the NGK Spark Plug Wire Set Line

The NGK Spark Plug Wire Set line is engineered to provide reliable ignition wire solutions tailored to specific vehicle applications. This product line focuses on delivering consistent electrical conductivity and durability through premium materials such as silicone insulation and magnetic cores. The NGK Spark Plug Wire Set 5659 exemplifies this approach by combining noise suppression and precise fitment for Mazda vehicles.

Product Details and Technical Specifications

This spark plug wire set features a silicone insulation material that withstands high temperatures and environmental stress, ensuring long-lasting performance. The blue insulation color aids in quick identification during installation or maintenance. The magnetic core with variable pitch enhances ignition signal quality, contributing to smoother engine operation. Noise suppression is integrated to reduce electromagnetic interference, which can affect vehicle electronics and radio reception. The insulation outside diameter of 5.00 mm balances flexibility and protection.

Common Applications and Problem Solving

• Replacement of worn or damaged spark plug wires on Mazda Miata, Protege, and Protege5
• Resolving engine misfires caused by faulty ignition wires
• Reducing radio frequency interference affecting vehicle electronics
• Improving ignition system reliability and engine performance
• Addressing issues related to heat damage or insulation degradation

Installation Notes and Tips

Ensure the engine is cool before beginning installation to avoid burns. Verify the wire routing matches the original setup to prevent cross-firing. Use dielectric grease on the spark plug boots to improve connection and ease future removal. Confirm that each wire is securely connected to the corresponding spark plug and ignition coil terminals. Follow vehicle-specific service manual instructions for torque specifications and safety precautions.

Quality Assurance and Warranty

NGK maintains strict quality control standards for its spark plug wire sets, including the 5659 model. Manufactured with premium materials and tested for durability, this product meets OEM specifications for Mazda Miata, Protege, and Protege5 vehicles. Warranty information is provided by NGK and may vary by region; consult the product packaging or NGK's official resources for detailed warranty terms.