Denso 671-8117 Spark Plug Wire Set

Denso 671-8117 Ignition Wire Set

Denso 671-8117 is a spark plug wire set built to match factory-installed form, fit, color, and performance. It is a direct replacement for Jeep Grand Cherokee and Jeep Grand Wagoneer applications listed below, with OE-style construction for consistent ignition transfer.

Key Features

• 7mm insulation outside diameter for OE-style wire routing and fit
• Silicone spark plug boot material for heat resistance and flexibility
• 180-degree spark plug end boot for proper terminal alignment
• Female spark plug end terminal type and female distributor/coil end terminal type
• Built to meet or exceed OE/OES standards
• Direct-fit replacement for Jeep Grand Cherokee and Jeep Grand Wagoneer applications

Product Details

The Denso First Time Fit line focuses on factory-style replacement parts, and this ignition wire set follows that approach with OE-matched form and performance characteristics. The 7mm design, silicone boots, and female terminal ends support a clean, original-equipment-style installation on 1993-1998 Jeep Grand Cherokee and 1993 Jeep Grand Wagoneer models. Part number 671-8117 is also referenced by NAPA Mileage Plus 6718117, and it cross-references ACDelco 16-808K for the same application.

Common Issues This Part Can Address

• Misfires caused by worn or heat-damaged plug wires
• Hard starting related to weak ignition transfer
• Rough idle from deteriorated wire insulation or terminals
• Intermittent spark loss from cracked or aged boots
• Voltage leakage in aging ignition wire routing

Installation Notes and Tips

Verify wire routing against the original layout before removal so each lead returns to the correct cylinder and terminal location. Inspect the distributor and spark plug terminals for corrosion or wear before installing the new set. Confirm fitment by year and model: Fits 1993-1998 Jeep Grand Cherokee, N/A; Fits 1993 Jeep Grand Wagoneer, N/A.

Quality Assurance

Denso states that First Time Fit ignition wire sets are engineered to match factory-installed parts in form, fit, color, and performance, with construction that meets or exceeds OE/OES standards.