Denso 671-8085 Spark Plug Wire Set

Denso 8mm Ignition Wire Set for Ford V8 Applications

Denso First Time Fit ignition wire set 671-8085 is built to match factory-installed wire sets in form, fit, color, and performance. It is a direct replacement for select Ford Bronco, F-150, and F-250 models from 1994-1996, with OE-style construction that meets or exceeds OE/OES standards.

Key Features

• 8mm ignition wire design for consistent spark delivery
• Silicone spark plug boot material for heat resistance and flexibility
• Female distributor coil end terminal type
• 115-degree spark plug end boot angle for routing in tight engine bays
• Female spark plug end terminal type
• OE-style replacement built to factory form and fit
• Brand line: Denso First Time Fit focuses on direct-fit ignition components that mirror original equipment specifications

Detailed Product Overview

This Denso 8mm spark plug wire set, part number 671-8085, is engineered for direct replacement service on 1994-1996 Ford Bronco, Ford F-150, and Ford F-250 applications. The silicone boot material helps maintain secure connections at the spark plug end, while the 115-degree boot angle supports cleaner wire routing around engine components. For buyers searching for a Ford Bronco ignition wire set or Ford F-150 spark plug wire replacement, this OE-style Denso option is built around the original fitment profile.

This part cross-references ACDelco 16-818K and Bosch 09779 for the same application.

Common Problems This Part Can Address

• Misfires caused by worn or heat-damaged ignition wires
• Hard starting related to weak spark transfer
• Rough idle from deteriorated wire insulation or boot sealing
• Intermittent ignition performance from loose or fatigued terminals
• Routing issues in crowded engine compartments on Ford Bronco, F-150, and F-250 models

Installation Notes and Tips

Verify engine-specific routing before removal and replace wires one at a time to preserve firing order. Inspect distributor and spark plug terminals for corrosion or carbon tracking before installing the new set. Confirm the female terminal ends and 115-degree boot orientation match the vehicle’s original configuration for proper seating and clearance.

Quality Assurance

Denso First Time Fit ignition wire sets are manufactured to match OE-style dimensions and performance expectations, with construction that meets or exceeds OE/OES standards. This helps support consistent ignition service on 1994-1996 Ford Bronco, Ford F-150, and Ford F-250 applications.