Denso 671-4003 Spark Plug Wire Set

Reliable Spark Plug Wire Set for Toyota Vehicles

The Denso 7mm Spark Plug Wire Set 671-4003 is designed to provide consistent ignition performance for select Toyota models. Engineered with durable silicone boots and precise terminal configurations, this set ensures optimal electrical conductivity and fitment for your vehicle.

• Silicone spark plug boot material for heat resistance and durability
• 7.00 mm insulation outside diameter for effective electrical insulation
• 180-degree spark plug end boot angle for proper routing and fit
• Female spark plug end terminal and male distributor coil end terminal
• Includes four straight spark plug end boots

Detailed Features of the Denso 7mm Spark Plug Wire Set

This spark plug wire set is part of Denso's 7mm product line, which focuses on delivering wires with a 7.00 mm insulation diameter. This specification balances flexibility and durability, making it suitable for ignition systems requiring reliable insulation and resistance to heat and electrical interference. The silicone boot material enhances longevity by resisting cracking and degradation under high temperatures. The 180-degree spark plug end boot design allows for proper alignment and secure connection to the spark plugs, while the male distributor coil end terminal ensures compatibility with the ignition coil. This set includes four straight spark plug end boots, matching the requirements of Toyota 4Runner, Celica, Corona, and Pickup models.

Compatible Toyota Models and Applications

The Denso 671-4003 spark plug wire set is compatible with various Toyota vehicles, including:

• Toyota 4Runner
• Toyota Celica
• Toyota Corona
• Toyota Pickup

This set is designed to maintain proper ignition timing and electrical flow, supporting engine performance and efficiency in these models.

Common Issues Addressed by This Spark Plug Wire Set

• Misfiring or rough engine idle due to worn or damaged ignition wires
• Reduced fuel efficiency caused by poor spark delivery
• Difficulty starting the engine related to faulty spark plug connections
• Electrical interference affecting ignition system performance
• Cracked or brittle spark plug boots leading to moisture intrusion

Installation Notes and Tips

When installing the Denso 7mm Spark Plug Wire Set 671-4003, ensure that the spark plug end boots are properly seated at a 180-degree angle for secure connection. Verify that the male distributor coil end terminals fit snugly to avoid loose connections. It is recommended to replace all wires simultaneously to maintain balanced ignition performance. Handle the silicone boots carefully to prevent damage during installation.

Quality Assurance and Warranty

Denso manufactures this spark plug wire set to meet OEM specifications for fit and function. The use of silicone boots and precise terminal types supports durability and reliable ignition performance. While specific warranty details are not provided, Denso products typically adhere to strict quality control standards to ensure consistent operation in compatible Toyota vehicles.