Denso 671-6197 Spark Plug Wire Set

Denso 7mm Spark Plug Wire Set for Nissan and INFINITI

Denso 671-6197 is a 7mm spark plug wire set built to match factory-installed wire sets in form, fit, color, and performance. It is a direct OE-style replacement for select Nissan Xterra, Frontier, Pathfinder, and INFINITI QX4 applications.

Key Features

• 7mm insulation outside diameter for OE-style wire routing and fit
• Sil-PBT-Sil spark plug boot material for durable terminal protection
• 90-degree spark plug end boots for tight engine bay routing
• Female spark plug end terminal type with male distributor/coil end terminal
• Factory-style construction that meets or exceeds OE/OES standards
• Brand line: Denso First Time Fit ignition wire sets are built to mirror original equipment specifications for consistent replacement fitment

Detailed Description

This Denso First Time Fit ignition wire set is engineered for direct replacement service on 1996-2000 Nissan Pathfinder, 1997-2000 INFINITI QX4, 1999-2001 Nissan Frontier, and 2000-2002 Nissan Xterra applications. The 7mm wire design, Sil-PBT-Sil boot construction, and OE-style terminal layout support proper connection at the spark plug and distributor or coil end. Part number 671-6197 is a practical choice when you need a replacement that follows original equipment dimensions and connection style. This part cross-references NGK NX104 and Bosch 09434 for the same application.

What This Part Helps Address

• Misfires caused by worn or damaged spark plug wires
• Hard starting related to weak ignition transfer
• Rough idle from inconsistent spark delivery
• Engine hesitation under load from deteriorated wire insulation
• Routing or terminal fit issues after aging OE wires fail

Installation Notes and Tips

Verify cylinder routing before removal and replace wires one at a time to preserve firing order. Inspect spark plug boots, coil/distributor terminals, and nearby heat sources for wear or contamination before installation. Confirm fitment by vehicle year, make, and model before ordering; Denso 671-6197 is listed for 1996-2000 Nissan Pathfinder, 1997-2000 INFINITI QX4, 1999-2001 Nissan Frontier, and 2000-2002 Nissan Xterra.

Quality Assurance

Denso states that First Time Fit ignition wire sets are built to match factory-installed wire sets in form, fit, color, and performance, with construction that meets or exceeds OE/OES standards. That makes 671-6197 a dependable OE-style replacement for Nissan Pathfinder, Nissan Frontier, INFINITI QX4, and Nissan Xterra ignition service.