Denso 671-8072 Spark Plug Wire Set

Reliable Ignition Wire Set for Buick, Chevrolet, GMC, and Isuzu Vehicles

The Denso 7mm Spark Plug Wire Set (Part Number 671-8072) is engineered to provide consistent ignition performance for select Buick, Chevrolet, GMC, and Isuzu models. Designed with durable silicone boots and precise terminal configurations, this set ensures optimal spark delivery and engine efficiency.

Key Features of the Denso 7mm Spark Plug Wire Set

• Silicone spark plug boot material for enhanced heat resistance and durability
• 7.00 mm insulation outside diameter for effective electrical insulation
• Female distributor coil end terminal type for secure connection
• Female spark plug end terminal type with 90-degree angled boots for tight engine compartments
• Includes 8 angled spark plug end boots to match specific engine layouts

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 demands of various ignition systems, providing reliable spark transmission and resistance to heat and wear. The 7mm wires in this set are suitable for vehicles requiring precise fitment and durable materials, such as the Buick Rainier and Chevrolet Trailblazer EXT.

Detailed Product Description

This spark plug wire set is specifically compatible with Buick, Chevrolet, GMC, and Isuzu models including the Ascender, Envoy XL, Express 1500/2500/3500, Rainier, Savana 1500/2500/3500, SSR, and Trailblazer EXT. The silicone boots provide excellent resistance to high temperatures and environmental factors, while the 90-degree angled spark plug end boots facilitate installation in confined engine spaces. Female terminals on both the distributor coil and spark plug ends ensure a secure and reliable electrical connection, reducing the risk of misfires and ignition issues.

Common Applications and Issues Addressed

• Replacement for worn or cracked spark plug wires causing misfires
• Improves ignition system reliability in Buick Rainier and Chevrolet Trailblazer EXT
• Prevents electrical arcing and power loss in ignition circuits
• Addresses poor engine performance due to faulty spark plug connections
• Suitable for restoring ignition wire integrity in GMC Savana and Isuzu Envoy XL

Installation Notes and Tips

• Ensure engine is cool before removing old spark plug wires
• Replace wires one at a time to maintain correct firing order
• Verify that the 90-degree angled boots align properly with spark plugs for secure fit
• Check that female terminals are fully seated on distributor coil and spark plugs
• Inspect wires for any signs of damage or improper routing after 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 long-term durability and consistent ignition performance. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship to ensure customer confidence.