Denso 671-6092 Spark Plug Wire Set

Denso 8mm Spark Plug Wire Set

Denso First Time Fit ignition wire sets are built to match the form, fit, color, and performance of the original factory wire set. This 8mm spark plug wire set uses silicone spark plug boots and OE-style terminal design for direct replacement service on supported Ford, Mercury, and Mazda applications.

Key Features

• 8mm insulation outside diameter for OE-style ignition wire replacement
• Silicone spark plug boot material for heat resistance and durability
• 120-degree spark plug end boot design for routed applications
• Female spark plug end terminal type with male distributor/coil end terminal
• Built to meet or exceed OE/OES standards in construction
• Direct-fit replacement for select Ford Contour, Mercury Mystique, Mercury Cougar, and Mazda MPV applications

Product Details

The Denso 671-6092 spark plug wire set is part of the First Time Fit line, a product line focused on OE-style replacement parts that match original fitment and performance characteristics. For drivers searching for a spark plug wire set for 1995-2000 Ford Contour, 1995-2000 Mercury Mystique, 1999-2000 Mercury Cougar, or 2000 Mazda MPV, this set provides the correct 8mm wire construction and terminal configuration for the listed applications. This part cross-references NGK (e.g., FDZ061, FDZ070) for the same application.

Common Issues This Part Can Address

• Misfires caused by worn or heat-damaged ignition wires
• Hard starting related to weak spark delivery
• Rough idle from deteriorated wire insulation or boot wear
• Voltage leakage from cracked or aged plug wire jackets
• Intermittent ignition performance on routed OE-style wire layouts

Installation Notes and Tips

Verify wire routing against the original layout before installation to maintain proper cylinder order and separation. Confirm the spark plug end uses the correct female terminal and the distributor or coil end uses the correct male terminal before connecting. For best results, replace wires one at a time to preserve firing order on the Ford Contour, Mercury Mystique, Mercury Cougar, or Mazda MPV application.

Quality Assurance

Denso states that First Time Fit ignition wire sets are manufactured to OE/OES-level standards for form, fit, color, and performance. The 8mm wire design and silicone boot construction support consistent replacement quality for the listed vehicles.