Denso 671-4042 Spark Plug Wire Set

Denso 671-4042 Ignition Wire Set

Denso 671-4042 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 Saturn SC, SC2, SL2, and SW2 applications where OE-style ignition wire routing and terminal fit are required.

Key Features

• 7mm insulation outside diameter for OE-style ignition wire construction
• Silicone spark plug boot material for heat resistance and flexibility
• 180-degree spark plug end boot for proper routing in tight engine bays
• Female spark plug end terminal type with male distributor/coil end terminal
• Built to meet or exceed OE/OES standards for factory-level fit and performance
• Compatible With Saturn SC, SC2, SL2, and SW2 model years listed below

Product Details

Denso First Time Fit ignition wire sets are engineered as direct OE replacements, making them a practical choice for Saturn ignition service. The 7mm wire design, silicone boot construction, and OE-style terminal configuration help maintain consistent spark delivery and secure connections at the plug and coil ends. This part number, 671-4042, is also a useful reference when sourcing a replacement ignition wire set for Saturn SC2, SL2, and SW2 vehicles from the early 1990s through the early 2000s.

This part cross-references NAPA Mileage Plus (e.g., 6714042) for the same application.

Vehicle Fitment

• Fits 1993-2002 Saturn SC2, N/A, 7mm
• Fits 1991-2002 Saturn SL2, N/A, 7mm
• Fits 1993-2001 Saturn SW2, N/A, 7mm
• Fits 1991-1992 Saturn SC, N/A, 7mm

Common Replacement Reasons

• Cracked or heat-damaged spark plug wire insulation
• Loose or worn terminal connections at the plug or coil end
• Misfire caused by inconsistent ignition wire conductivity
• Hard starting or rough idle related to aging ignition components
• Service replacement for Saturn SC, SC2, SL2, or SW2 ignition maintenance

Installation Notes

Match each wire to the original routing before removal to preserve firing order and prevent crossfire. Inspect the coil and spark plug terminals for corrosion or carbon tracking before installation, and confirm each boot seats fully on the plug and distributor/coil connection. Use the vehicle service manual for the correct routing path on Saturn SC, SC2, SL2, and SW2 models.

Quality Assurance

Denso First Time Fit wire sets are produced to OE/OES-level standards and are intended to replicate factory fit and performance characteristics. The 671-4042 part number is a direct OE-style replacement for the listed Saturn applications.