Denso 671-4045 Spark Plug Wire Set

Denso 7mm Spark Plug Wire Set for OE Fit

Denso First Time Fit ignition wire sets are built to match factory-installed wire sets in form, fit, color, and performance. This Denso 7mm spark plug wire set uses silicone spark plug boot material and OE-style terminal configurations for a direct replacement on supported vehicles.

Key Features

• 7mm insulation outside diameter for OE-style ignition wire routing
• Silicone spark plug boot material for heat resistance and flexibility
• 180-degree spark plug end boot design
• Female spark plug end terminal type
• Male distributor or coil end terminal type
• Built to meet or exceed OE/OES standards

Product Details

The Denso 671-4045 ignition wire set is part of the First Time Fit line, which focuses on factory-style replacement parts for dependable service and correct fitment. The 7mm wire diameter, silicone boot construction, and OE-matched terminal layout make this set a practical choice for ignition service on vehicles such as the Chevrolet S10, GMC Sonoma, Isuzu Hombre, Chevrolet Cavalier, Pontiac Sunfire, Buick Century, Chevrolet Corsica, Oldsmobile Cutlass Ciera, and Chevrolet Lumina. If you are replacing worn ignition wires on a 1998-2003 Chevrolet S10 or a 1993-1997 Chevrolet Cavalier, part number 671-4045 provides the correct OE-style configuration for supported applications.

This part cross-references NAPA Mileage Plus 6714045 for the same application.

Vehicle Fitment

• Fits 1998-2003 Chevrolet S10, N/A, 7mm
• Fits 1998-2003 GMC Sonoma, N/A, 7mm
• Fits 1994-1995 GMC Sonoma, N/A, 7mm
• Fits 1998-2000 Isuzu Hombre, N/A, 7mm
• Fits 1993-1997 Chevrolet Cavalier, N/A, 7mm
• Fits 1995-1997 Pontiac Sunfire, N/A, 7mm
• Fits 1993-1996 Buick Century, N/A, 7mm
• Fits 1992-1996 Chevrolet Corsica, N/A, 7mm
• Fits 1993-1996 Oldsmobile Cutlass Ciera, N/A, 7mm
• Fits 1993 Chevrolet Lumina, N/A, 7mm

Common Issues This Part Can Address

• Misfires caused by aged or damaged ignition wires
• Hard starting related to weak spark delivery
• Rough idle from deteriorated wire insulation or boot wear
• Intermittent ignition performance from poor terminal contact
• Heat-related wire breakdown in the engine bay

Installation Notes and Tips

Match each wire to the original routing before removal to avoid crossfire or incorrect cylinder connection. Confirm the 7mm wire size, female spark plug end, and male distributor or coil end terminal type before installation. Inspect plugs, distributor cap, and coil components at the same time so the new wire set is installed into a clean ignition system.

Quality Assurance

Denso First Time Fit ignition wire sets are engineered to OE/OES standards for form and performance consistency. Part number 671-4045 is built as a direct replacement for supported applications, including Chevrolet S10, GMC Sonoma, and Chevrolet Cavalier fitments.