Denso 671-8007 Spark Plug Wire Set

Denso 8mm Spark Plug Wire Set

Denso 671-8007 is an 8mm spark plug wire set built to match factory-installed wire sets in form, fit, color, and performance. It is a direct OE-style ignition wire replacement for classic Chevrolet, Pontiac, Buick, Oldsmobile, and GMC applications from the late 1970s through the mid-1980s.

For buyers searching for a Denso 8mm spark plug wire set for Chevrolet Camaro, Pontiac Firebird, or GMC K-series truck applications, this part number delivers the OE-fit details needed for a clean ignition service. The Denso 671-8007 is also a practical choice when replacing aging ignition wires on carbureted V8 vehicles that use female terminals and 90-degree spark plug boots.

Key Features

• 8mm insulation outside diameter for OE-style ignition wire replacement
• Silicone spark plug boot material for heat resistance and flexibility
• Female spark plug end terminal type
• 90-degree spark plug end boots for routed plug access
• Distributor/coil end terminal type: female
• Built to meet or exceed OE/OES standards in construction
• First Time Fit product line matches factory-installed wire set form and performance

Product Details

Denso First Time Fit ignition wire sets are engineered to mirror the original wire set used on the vehicle, making them a straightforward replacement for maintenance and drivability service. This 8mm wire set uses silicone boot material and OE-style terminal design to support consistent spark delivery across the ignition system. The Denso 671-8007 is listed for a wide range of Chevrolet Camaro and Pontiac Firebird applications, along with related Chevrolet, GMC, Buick, Oldsmobile, and Pontiac models from 1979-1986.

This part cross-references NAPA Mileage Plus 6718007 for the same application.

Common Issues This Part Addresses

• Misfires caused by worn or heat-damaged ignition wires
• Hard starting from weak spark transfer
• Rough idle related to deteriorated wire insulation
• Crossfire or spark leakage from aged boots and jackets
• Service issues on vehicles needing OE-style female terminal wire routing

Installation Notes and Tips

Verify plug wire routing against the original layout before removal, especially on Chevrolet Camaro, Pontiac Firebird, and GMC truck applications with 90-degree plug boots. Match each lead to the correct cylinder and confirm terminal engagement at both the spark plug and distributor or coil end. Inspect plugs, cap, and rotor during installation so the new wire set is not paired with worn ignition components.

Compatible With 1979-1986 Chevrolet Camaro, 1981-1986 Pontiac Firebird, and other listed 1979-1986 Chevrolet, Pontiac, Buick, Oldsmobile, and GMC applications. Fits 1983-1984 Chevrolet C10, 1983-1984 GMC K1500, and related truck models shown in the fitment data.

Quality Assurance

Denso states that First Time Fit ignition wire sets are built to OE/OES standards and are made to match factory-installed wire sets in form, fit, color, and performance. Part number 671-8007 is part of Denso’s 8mm line for direct replacement use on the listed vehicles.