Denso 671-4251 Spark Plug Wire Set

Denso 671-4251 Spark Plug Wire Set

Denso 671-4251 is a 7mm spark plug wire set built to match factory-installed wire sets in form, fit, color, and performance. It is a direct replacement for the ignition wire set used on 1995-2002 Kia Sportage models, with OE-style construction that meets or exceeds OE/OES standards.

Key Features

• 7mm insulation outside diameter for OE-style ignition wire routing
• Sil PBT Sil spark plug boot material for durable terminal protection
• 180-degree spark plug end boot for proper clearance and routing
• Female spark plug end terminal type with male distributor/coil end terminal
• Built to match factory fit, color, and performance
• Compatible with 1995-2002 Kia Sportage, N/A, 7mm

Product Details

This Denso First Time Fit ignition wire set is engineered as an OE-style replacement for the Kia Sportage ignition system. The 7mm wire diameter supports factory-style installation, while the boot and terminal design help maintain secure connections at the spark plug and distributor or coil end. Denso 671-4251 is a practical choice when replacing worn ignition wires on 1995-2002 Kia Sportage vehicles and restoring consistent spark delivery.

This part cross-references ACDelco 964U and NGK KRX003 for the same application.

Common Issues This Part Can Address

• Engine misfire caused by worn or damaged ignition wires
• Hard starting related to weak spark transfer
• Rough idle from deteriorated wire insulation or boot wear
• Intermittent ignition performance from poor terminal contact
• Voltage leakage from cracked or aged plug wires

Installation Notes and Tips

Verify wire routing against the original layout before removal to maintain proper cylinder order. Inspect spark plugs, distributor cap, and coil connections during replacement, since worn ignition components can affect wire performance. Confirm fitment for your specific 1995-2002 Kia Sportage before installation, and route the 180-degree boot to preserve clearance around nearby components.

Quality Assurance

Denso First Time Fit ignition wire sets are built to OE/OES standards and are intended to match the original part’s fit and performance characteristics for the Kia Sportage application.