Denso 671-4043 Spark Plug Wire Set

Denso 671-4043 Ignition Wire Set

Denso 671-4043 is a spark plug wire set built to match factory-installed form, fit, color, and performance. It is a direct replacement for 1998-2002 Chevrolet Cavalier and 1998-2002 Pontiac Sunfire applications with 7mm wire routing.

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/coil end terminal type
• Built to meet or exceed OE/OES standards in construction

Product Details

Denso’s First Time Fit ignition wire line is engineered to mirror the original wire set used on the vehicle, including the same general form, fit, color, and performance characteristics. Part number 671-4043 is a 7mm spark plug wire set for Chevrolet Cavalier and Pontiac Sunfire models from 1998 through 2002. The silicone boot construction helps maintain a secure connection at the spark plug and ignition source while supporting consistent ignition performance under normal engine heat.

This part cross-references ACDelco 764S and Bosch 09455 for the same application.

Common Replacement Reasons

• Engine misfire caused by worn ignition wires
• Hard starting from weakened spark delivery
• Rough idle related to damaged boots or insulation
• Voltage leakage from cracked or heat-aged wire jackets
• Intermittent ignition performance on Chevrolet Cavalier or Pontiac Sunfire models

Installation Notes

Verify wire routing against the original layout before removal and replacement. Match each lead to the correct cylinder and ignition connection, and confirm the 180-degree spark plug boot seats fully on the plug. Inspect nearby ignition components for wear before installing Denso 671-4043 to help avoid repeat faults.

Quality Assurance

Denso First Time Fit ignition wire sets are produced to OE/OES-level construction standards and are intended to replicate the original equipment fit and performance profile for the listed Chevrolet Cavalier and Pontiac Sunfire applications.