Denso 671-9004 Spark Plug Wire Set

Reliable Ignition Wire Set for Jaguar XJ12 and XJS

The Denso 8mm Spark Plug Wire Set (Part Number 671-9004) is designed specifically for Jaguar XJ12 and XJS models. Engineered to deliver consistent ignition performance, this set ensures optimal spark delivery and engine efficiency.

• Silicone spark plug boot material for enhanced heat resistance
• 8.00 mm insulation outside diameter for effective electrical insulation
• 180-degree spark plug end boot angle for precise fitment
• Female spark plug end terminal type and male distributor coil end terminal type
• Includes 12 straight spark plug end boots for complete replacement

About the Denso 8mm Brand Line

The Denso 8mm brand line focuses on ignition wire sets with an 8.00 mm insulation diameter, providing a balance between durability and flexibility. This line is engineered to meet the specific electrical and mechanical requirements of vehicles like the Jaguar XJ12 and XJS, ensuring reliable spark transmission and resistance to heat and wear.

Product Details and Specifications

This spark plug wire set features silicone boots that offer superior resistance to high temperatures and environmental factors, helping maintain a secure connection over time. The 180-degree spark plug end boot design allows for proper alignment and fitment in tight engine compartments. The female terminal at the spark plug end and male terminal at the distributor coil end ensure compatibility with the ignition system of Jaguar XJ12 and XJS models. With an insulation outside diameter of 8.00 mm, these wires provide effective protection against electrical interference and arcing.

Common Applications and Issues Addressed

• Replacement of worn or damaged spark plug wires in Jaguar XJ12 and XJS
• Resolving misfires caused by poor spark plug wire connections
• Improving engine performance by restoring proper spark delivery
• Reducing ignition system electrical interference and crossfire
• Preventing heat-related wire degradation in high-temperature engine environments

Installation Notes and Tips

When installing the Denso 671-9004 spark plug wire set, ensure that each wire is routed away from hot engine components and moving parts to prevent premature wear. Confirm the correct orientation of the 180-degree spark plug end boots for a secure fit. It is recommended to replace all wires simultaneously to maintain balanced ignition performance. Use dielectric grease on the terminals to improve electrical contact and ease future removal.

Quality Assurance and Warranty

Denso manufactures this spark plug wire set to meet strict quality standards, ensuring reliable performance and durability. The use of silicone boots and precise terminal design contributes to long service life. Warranty information is available through Denso and may vary by region; consult the manufacturer or authorized distributor for specific coverage details.