Denso 671-6064 Spark Plug Wire Set

Denso 671-6064 Ignition Wire Set

Denso 671-6064 is a 7mm spark plug wire set built to match factory-installed wire sets in form, fit, color, and performance. It uses silicone spark plug boot material and female terminals for a direct OE-style ignition service part.

The Denso 7mm product line focuses on OE replacement dimensions and construction standards. This wire set follows that approach with a 7.00 mm outside diameter, 180-degree spark plug end boots, and female distributor/coil end terminal design for the listed applications.

Key Features

• 7mm insulation outside diameter for OE-style routing and fit
• Silicone spark plug boot material for heat resistance and flexibility
• Female spark plug end terminal type
• Female distributor/coil end terminal type
• 180-degree spark plug end boot design
• Built to meet or exceed OE/OES standards
• Fits Buick Lucerne, Buick LeSabre, Buick Park Avenue, Pontiac Bonneville, Oldsmobile 88, and Oldsmobile LSS applications listed below

Detailed Description

Denso 671-6064 is an ignition wire set for vehicles that require a 7mm OE-style replacement. It is engineered to mirror the original wire set in fit and performance, helping maintain proper spark delivery from the ignition system to the spark plugs. This part number is listed for 2006 Buick Lucerne, 1999-2005 Buick LeSabre, 1998-2005 Buick Park Avenue, 1999-2005 Pontiac Bonneville, 1999 Oldsmobile 88, and 1999 Oldsmobile LSS. This part cross-references NAPA Mileage Plus (e.g., 6716064) for the same application.

What It Helps Address

• Misfires caused by worn or damaged plug wires
• Hard starting related to weak ignition transfer
• Rough idle from deteriorated wire insulation
• Voltage leakage from cracked boots or aging wire jackets
• Loss of ignition consistency under heat and engine load

Installation Notes and Tips

Verify the vehicle’s ignition wire routing and terminal style before installation. Match each lead to the original routing path to avoid crossfire or heat exposure issues. Confirm the application by year, make, and model before ordering; this part number 671-6064 is listed for specific Buick, Pontiac, and Oldsmobile vehicles with 7mm requirements.

Quality Assurance

Denso First Time Fit ignition wire sets are built to OE/OES-level standards for construction and performance. The design is intended to match factory-installed wire sets in form, fit, color, and function for the listed applications.