Denso 671-8140 Spark Plug Wire Set

Reliable Spark Plug Wire Set for Land Rover Discovery and Range Rover

The Denso 7mm Spark Plug Wire Set (Part Number 671-8140) is engineered to deliver consistent ignition performance for Land Rover Discovery and Range Rover models. Designed with durable silicone boots and precise terminal configurations, this set ensures optimal electrical conductivity and engine efficiency.

• Silicone spark plug boot material for heat resistance and durability
• 7.00 mm insulation outside diameter for effective electrical insulation
• 150-degree angled spark plug end boots for improved fitment in tight engine spaces
• Female spark plug end terminals and male distributor coil end terminals for secure connections
• Includes 8 angled spark plug end boots to match vehicle requirements

Detailed Features of the Denso 7mm Spark Plug Wire Set

The Denso 7mm line is designed to meet the specific ignition wire needs of vehicles requiring a 7.00 mm insulation diameter. This particular set, part number 671-8140, features silicone boots that provide excellent resistance to heat and environmental factors, which is critical for maintaining ignition integrity in Land Rover Discovery and Range Rover engines. The 150-degree angled spark plug end boots allow for easier installation and better routing in confined engine compartments. The combination of female spark plug end terminals and male distributor coil end terminals ensures a secure and reliable connection, reducing the risk of misfires and electrical loss.

Compatible Vehicles and Common Applications

This spark plug wire set is compatible with the following Land Rover models:

• Land Rover Discovery
• Land Rover Range Rover

It is designed to address common ignition system issues such as:

• Engine misfires caused by worn or damaged spark plug wires
• Reduced engine performance due to poor electrical conductivity
• Ignition system failures from heat-related wire degradation
• Difficulty in wire routing and installation in tight engine bays
• Corrosion or loose terminal connections affecting spark delivery

Installation Notes and Tips

When installing the Denso 7mm Spark Plug Wire Set 671-8140, ensure that the spark plug wires are routed away from high-heat components and moving parts to prevent premature wear. The 150-degree angled boots facilitate easier access in tight spaces, but care should be taken to avoid bending or stressing the wires. Confirm that the female spark plug end terminals and male distributor coil end terminals are securely connected to prevent ignition issues.

Quality Assurance and Warranty

Denso maintains strict quality control standards for its 7mm spark plug wire line, ensuring each set meets OEM specifications for fit and function. The use of silicone boots and precise terminal types contributes to long-lasting performance. While specific warranty details for part number 671-8140 should be confirmed with the supplier, Denso products typically come with a limited warranty covering defects in materials and workmanship.