Denso 671-4015 Spark Plug Wire Set

Denso 7mm Spark Plug Wire Set for OE-Style Ignition Service

The Denso 7mm Spark Plug Wire Set, part number 671-4015, is built to match factory-installed wire sets in form, fit, color, and performance. It is a direct replacement choice for ignition service on select Chevrolet, Geo, Pontiac, and Suzuki applications, including 1998 Chevrolet Metro, 1998 Chevrolet Tracker, and 1992-1998 Suzuki Sidekick.

Key Features

• 7mm insulation outside diameter for OE-style ignition wire routing and fit
• Sil PBT Sil spark plug boot material for durable terminal protection
• 135-degree angled spark plug end boots for applications that require a bent boot profile
• Female spark plug end terminal type with male distributor/coil end terminal type
• Built to meet or exceed OE/OES standards in construction and performance
• Direct replacement for Denso 671-4015 and related cross-reference applications

Detailed Description

Denso First Time Fit ignition wire sets are engineered to replicate the original equipment configuration, making them a practical choice when replacing worn ignition leads. The 7mm wire diameter, angled spark plug boots, and OE-style terminal layout support proper routing and secure connections on vehicles such as the 1998 Suzuki Swift, 1996-1998 Suzuki X-90, 1996-1997 Geo Tracker, and 1995-1997 Pontiac Sunrunner. This part number, 671-4015, is also cross-referenced by NAPA Mileage Plus 6714015 for the same application.

Compatible With 1998 Chevrolet Metro, 1998 Chevrolet Tracker, 1997-1998 Pontiac Firefly, 1998 Suzuki Esteem, 1992-1998 Suzuki Sidekick, 1998 Suzuki Swift, 1996-1998 Suzuki X-90, 1996-1997 Geo Tracker, 1994 Geo Tracker, and 1995-1997 Pontiac Sunrunner.

What It Helps Address

• Misfires caused by worn or damaged spark plug wires
• Hard starting related to weak ignition transfer
• Rough idle from inconsistent spark delivery
• Voltage leakage from cracked or deteriorated wire insulation
• Poor terminal contact at the spark plug or distributor/coil end

Installation Notes and Tips

Verify engine application, wire routing, and terminal orientation before installation. Match the 135-degree angled spark plug boots and female spark plug terminals to the original layout, and confirm the distributor/coil end uses a male terminal. Inspect plugs, cap, and coil components during service to help maintain consistent ignition performance.

Quality Assurance

Denso states that this First Time Fit wire set is made to match factory-installed specifications and that its construction meets or exceeds OE/OES standards. The 7mm design and OE-style materials support a precise replacement for the original ignition wire set.