Denso 671-4045 Spark Plug Wire Set

Reliable Spark Plug Wire Set for Select GM and Isuzu Vehicles

The Denso 7mm Spark Plug Wire Set (Part Number 671-4045) is engineered to deliver consistent ignition performance for a range of Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Pontiac models. Designed with durable silicone boots and precise terminal configurations, this set supports efficient spark delivery and engine reliability.

• Silicone spark plug boot material for heat resistance and durability
• 7.00 mm insulation outside diameter for optimal electrical insulation
• 180-degree spark plug end boot angle for secure fitment
• Female spark plug end terminals and male distributor coil end terminals
• Includes four straight spark plug end boots

About the Denso 7mm Brand Line

The Denso 7mm brand line focuses on ignition wire sets with a 7.00 mm insulation diameter, balancing flexibility and electrical insulation. This line is designed to meet the ignition demands of various GM and Isuzu vehicles, providing reliable spark transmission and resistance to heat and wear. The 7mm wires are engineered to maintain consistent performance under typical engine operating conditions.

Product Details and Specifications

This spark plug wire set features silicone boots that offer excellent resistance to heat, oil, and chemicals, ensuring longevity in demanding engine environments. The 180-degree spark plug end boot angle allows for proper alignment and connection in tight engine compartments. The set includes four straight spark plug end boots with female terminals, paired with male distributor coil end terminals, ensuring compatibility with the ignition systems of compatible vehicles.

Compatible Vehicles and Applications

• Buick Century, Regal
• Chevrolet Cavalier, Lumina, S10, Sonoma, Sunfire
• GMC S10, Sonoma
• Isuzu Hombre
• Oldsmobile Cutlass Ciera
• Pontiac Corsica, Sunfire

This wire set is designed to address ignition issues such as misfires, poor engine performance, and rough idling in these specific models.

Common Issues Addressed by This Spark Plug Wire Set

• Engine misfires caused by worn or damaged ignition wires
• Reduced fuel efficiency due to weak spark delivery
• Rough idling and hesitation during acceleration
• Electrical interference affecting ignition timing
• Corrosion or damage to spark plug or distributor coil terminals

Installation Notes and Tips

When installing the Denso 671-4045 spark plug wire set, ensure that the wires are routed away from hot engine components and sharp edges to prevent premature wear. Confirm that the 180-degree spark plug end boots seat fully on the spark plugs and that the male distributor coil terminals are securely connected. It is recommended to replace all wires in the set simultaneously to maintain balanced ignition performance.

Quality Assurance and Warranty

Denso manufactures this spark plug wire set to meet or exceed OEM specifications for the listed vehicle applications. The use of silicone boots and precise terminal design supports durability and consistent performance. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.