Denso 671-4002 Spark Plug Wire Set

Denso 671-4002 Ignition Wire Set

Denso 671-4002 is a 7mm spark plug wire set built to match factory-installed form, fit, color, and performance. It is a direct OE-style replacement for select Suzuki Sidekick, Suzuki Swift, and Isuzu Impulse applications, with construction that meets or exceeds OE/OES standards.

Key Features

• 7mm insulation outside diameter for OE-style ignition wire routing
• Silicone spark plug boot material for heat resistance and durability
• 180-degree spark plug end boot for proper terminal alignment
• Female spark plug end terminal type
• Male distributor/coil end terminal type
• Built to match factory-installed wire set form, fit, color, and performance
• Direct replacement for Denso 671-4002 ignition applications

Product Details

The Denso First Time Fit line focuses on OE-style ignition service parts, and this wire set follows that approach with factory-matched dimensions and terminal design. The 7mm wire diameter, silicone boot construction, and OE/OES-level build quality support consistent ignition transfer in vehicles that require this configuration. This part number, 671-4002, is listed for 1995 Suzuki Sidekick, 1992-1994 Suzuki Swift, 1994 Suzuki Swift, 1989-1991 Suzuki Swift, and 1985-1989 Isuzu Impulse. This part cross-references NGK (e.g., SE76, SE93) for the same application.

Common Issues It May Solve

• Misfire caused by worn or cracked ignition wires
• Hard starting related to weak spark delivery
• Rough idle from deteriorated wire insulation or boot damage
• Intermittent ignition performance from poor terminal contact
• Voltage leakage from aged 7mm wire insulation

Installation Notes

Verify engine layout and terminal style before installation. Match each lead to the correct cylinder and coil/distributor connection, and route the wires away from hot or moving components. For Suzuki Swift applications, confirm the Japan-built vehicle note where listed in fitment. Use the vehicle-specific fitment data for 1995 Suzuki Sidekick, 1992-1994 Suzuki Swift, 1994 Suzuki Swift, 1989-1991 Suzuki Swift, and 1985-1989 Isuzu Impulse.

Quality Assurance

Denso First Time Fit ignition wire sets are engineered to mirror OE service part specifications and are manufactured to meet or exceed OE/OES standards for fit and performance.