Denso 671-6197 Spark Plug Wire Set

Reliable Spark Plug Wire Set for Nissan and Infiniti Vehicles

The Denso 7mm Spark Plug Wire Set (Part Number 671-6197) is designed to deliver consistent ignition performance for select Nissan and Infiniti models. Engineered with durable materials and precise terminal configurations, this set ensures optimal spark delivery and engine efficiency.

• Silicone-PBT-Silicone spark plug boot material for heat resistance and durability
• 7.00 mm insulation outside diameter for effective electrical insulation
• Distributor coil end terminal type: Male
• Spark plug end boot terminal type: Female with 2 angled (90°) and 4 straight boots
• Compatible with Nissan Frontier, Pathfinder, Xterra, and Infiniti QX4

Detailed Features and Construction

This spark plug wire set features a silicone-PBT-silicone boot material that provides excellent resistance to heat, oil, and abrasion, which is critical for maintaining reliable ignition under demanding engine conditions. The 7mm insulation diameter balances flexibility and protection, reducing the risk of electrical interference and misfires. The distributor coil end terminals are male type, while the spark plug end terminals are female, with two angled 90-degree boots and four straight boots to match the factory configuration of the ignition system on compatible vehicles.

About the Denso 7mm Product Line

The Denso 7mm line focuses on ignition wire sets with a 7.00 mm insulation diameter, offering a balance of durability and flexibility suitable for a range of Nissan and Infiniti models. This product line is engineered to meet OEM specifications, ensuring proper fitment and reliable performance in ignition systems requiring this specific wire gauge and boot configuration.

Applications and Common Issues Addressed

• Replacement for worn or damaged spark plug wires in Nissan Frontier, Pathfinder, Xterra, and Infiniti QX4
• Resolves engine misfires caused by faulty or degraded ignition wires
• Improves ignition spark delivery for smoother engine operation
• Prevents electrical interference and crossfire issues
• Maintains proper spark plug connection with correct boot angles and terminal types

Installation Notes and Tips

When installing the Denso 671-6197 spark plug wire set, ensure that the wires are routed according to the vehicle’s factory specifications to avoid contact with hot engine components or moving parts. The 90-degree angled boots should be positioned on the spark plugs where space constraints require it, while straight boots fit in open areas. Confirm that the male distributor coil terminals and female spark plug terminals are securely connected to prevent ignition issues.

Quality Assurance and Warranty

Denso spark plug wire sets are manufactured to meet or exceed OEM standards, providing reliable performance and durability. While specific warranty details for part number 671-6197 are not provided here, Denso products typically come with a limited warranty against defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.