Denso 671-4081 Spark Plug Wire Set

Denso 671-4081 Ignition Wire Set

Denso 671-4081 is a 7mm spark plug wire set built to match factory-installed wire sets in form, fit, color, and performance. It is a direct replacement for Jeep Wrangler and Jeep Liberty applications that call for OE-style ignition wire routing and terminal design.

Key Features

• 7mm insulation outside diameter for OE-style ignition wire construction
• Silicone spark plug boot material for heat resistance and flexibility
• 90-degree spark plug end boot for proper routing in tight engine bays
• Female spark plug end terminal type
• Female distributor/coil end terminal type
• Built to meet or exceed OE/OES standards

Product Details

The Denso First Time Fit line is engineered as an OE-style replacement line, and this ignition wire set follows that approach with factory-matched form and performance characteristics. The 7mm design, silicone boot material, and 90-degree spark plug end help maintain secure routing and consistent connection points on ignition systems that use female terminals. This part number, 671-4081, is listed for 2003-2006 Jeep Wrangler and 2002-2005 Jeep Liberty applications.

This part cross-references NAPA Mileage Plus 6714081 for the same application.

Common Uses

• Replacing worn or heat-aged ignition wires on a Jeep Wrangler
• Replacing damaged wire boots or terminals on a Jeep Liberty
• Addressing misfire concerns related to poor wire connection
• Restoring proper ignition routing after wire insulation deterioration
• Correcting intermittent spark transfer caused by aging wire sets

Installation Notes

Verify engine application, terminal style, and wire routing before installation. Match each lead to the original routing path to avoid crossfire, contact with hot components, or tension at the boots. For Jeep Wrangler and Jeep Liberty service, confirm the 7mm specification and female terminal ends match the original equipment layout before final fitment.

Quality Assurance

Denso First Time Fit ignition wire sets are built to OE/OES standards for form, fit, color, and performance. The 671-4081 part number is manufactured to align with factory-style replacement requirements for Jeep Wrangler and Jeep Liberty ignition service.