Denso 671-6263 Spark Plug Wire Set

Denso 671-6263 Ignition Wire Set

Denso 671-6263 is a spark plug wire set built to match factory-installed form, fit, color, and performance. It is a direct OE-style replacement for select Ford Ranger and Mazda B3000 applications, with 8mm insulation and silicone boot material for consistent ignition routing and connection quality.

Key Features

• 8mm insulation outside diameter for OE-style wire routing and protection
• Silicone spark plug boot material for heat resistance and flexibility
• 115-degree spark plug end boot angle for proper clearance in tight engine bays
• Female distributor coil end terminal type
• Female spark plug end terminal type
• Built to meet or exceed OE/OES standards in construction
• Direct replacement for Ford Ranger and Mazda B3000 ignition service

Product Details

Denso’s First Time Fit ignition wire sets are engineered to mirror the original wire set in form, fit, color, and performance. This Denso 671-6263 spark plug wire set is made for drivers servicing ignition systems on 2004-2007 Ford Ranger and 2006-2008 Mazda B3000 models. The 8mm wire diameter supports OE-style routing, while the silicone boot construction helps maintain a secure connection at the spark plug end and distributor coil end. This part cross-references Autolite 97114 and CARQUEST 35-6341 for the same application.

Common Reasons to Replace

• Engine misfire or rough idle caused by worn ignition wires
• Hard starting from weakened spark delivery
• Intermittent ignition performance under load
• Cracked, heat-aged, or oil-contaminated wire boots
• Loss of spark transfer efficiency in Ford Ranger or Mazda B3000 service

Installation Notes and Tips

Verify wire routing against the original layout before installation to maintain proper cylinder order and clearance. Confirm the female terminal ends and 115-degree spark plug boot orientation match the vehicle’s ignition layout. For best results, inspect related ignition components such as spark plugs and coil connections during service. Fits 2004-2007 Ford Ranger, N/A. Fits 2006-2008 Mazda B3000, N/A.

Quality Assurance

Denso states that this First Time Fit wire set is built to OE/OES standards for construction and performance, with dimensions and materials selected to match the original application.