Denso 671-8055 Spark Plug Wire Set

Denso 7mm 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 Denso 7mm spark plug wire set, part number 671-8055, is made for direct replacement service on select Chevrolet and GMC trucks and vans.

With silicone spark plug boot material, a 180-degree spark plug end boot, and female terminals at both the spark plug and distributor/coil ends, this wire set is built for OE-style routing and connection points. The 7.00 mm insulation outside diameter supports a factory-style fit on applications that call for a 7mm ignition wire design.

Key Features

• Denso First Time Fit ignition wire set for OE-style replacement
• 7mm insulation outside diameter for factory-style routing
• Silicone spark plug boot material for heat-resistant service
• 180-degree spark plug end boot configuration
• Female spark plug end terminal type
• Female distributor/coil end terminal type
• Direct replacement part number 671-8055

Product Details

Denso 671-8055 is a spark plug wire set in the Ignition > Ignition Wire and Related Components category. The First Time Fit line is engineered to mirror original equipment specifications, making it a practical choice for maintaining proper ignition routing and connection integrity on vehicles such as Chevrolet C2500, Chevrolet K2500, GMC C3500, and GMC Savana 3500. This part cross-references NAPA Mileage Plus 6718055 for the same application.

Common Issues This Part Can Address

• Cracked or heat-damaged ignition wire insulation
• Loose or worn spark plug boot connections
• Misfire caused by deteriorated wire routing or terminal wear
• Hard starting related to weakened ignition transfer
• Intermittent ignition performance on aging factory wire sets

Installation Notes and Tips

Verify wire routing against the original layout before removal, and match each lead to the correct cylinder and terminal location. Confirm the 7mm wire specification, female terminal style, and 180-degree boot orientation before installation. This part is listed for select 1996-2000 Chevrolet C2500, Chevrolet C3500, Chevrolet Express 3500, Chevrolet K2500, Chevrolet K3500, GMC C2500, GMC C3500, GMC K2500, GMC K3500, and GMC Savana 3500 applications, plus 1996-1999 Chevrolet C2500 Suburban, Chevrolet K2500 Suburban, Chevrolet P30, GMC C2500 Suburban, GMC K2500 Suburban, and GMC P3500 applications.

Quality Assurance

Denso states that First Time Fit ignition wire sets are manufactured to meet or exceed OE/OES standards in construction and performance. That OE-focused approach supports consistent fitment and dependable replacement service for the listed Chevrolet and GMC applications.