Denso 671-4016 Spark Plug Wire Set

Denso 7mm Spark Plug Wire Set

Denso First Time Fit ignition wire sets are built to match the form, fit, color, and performance of the original factory wire set. This Denso 7mm spark plug wire set, part number 671-4016, is made for direct replacement service on select Saab 900, Hyundai Pony, Hyundai Stellar, and Nissan 200SX applications.

The 7mm insulation diameter and silicone spark plug boot material support reliable ignition routing, while the OE-style terminal layout helps maintain proper connection at the distributor coil end and spark plug end.

• 7mm insulation outside diameter for OE-style wire routing
• Silicone spark plug boot material for heat resistance and flexibility
• Male distributor coil end terminal type
• Female spark plug end terminal type
• 180-degree spark plug end boot design
• Built to meet or exceed OE/OES construction standards
• Denso part number 671-4016 for direct catalog lookup

Product Line Details

Denso First Time Fit ignition wire sets are positioned as direct OE-style replacements. The line is engineered to mirror factory-installed wire sets in fit and performance, making it a practical choice when replacing aging ignition wires on older import vehicles such as the Saab 900 and Hyundai Pony.

Fitment

• Fits 1979-1989 Saab 900, N/A, 7mm
• Fits 1983-1987 Hyundai Pony, N/A, 7mm
• Fits 1985 Hyundai Stellar, N/A, 7mm
• Fits 1980-1981 Nissan 200SX, N/A, Exc. California; 7mm

This part cross-references NGK (e.g., EUX012, FDX010) for the same application.

Common Replacement Reasons

• Engine misfire caused by worn ignition wires
• Hard starting from weak spark delivery
• Rough idle related to cracked or deteriorated wire insulation
• Intermittent ignition performance from poor terminal contact
• Voltage leakage from aged silicone or insulation breakdown

Installation Notes

Verify vehicle year, engine configuration, and emissions application before ordering, especially for the 1980-1981 Nissan 200SX, which is listed as excluding California. Match each wire to the original routing and terminal style to preserve ignition timing and firing order. Inspect distributor cap, rotor, and spark plugs during replacement to avoid carrying over ignition faults.

Quality Assurance

Denso states that First Time Fit ignition wire sets are manufactured to meet or exceed OE/OES standards and are built to match factory-installed wire sets in form, fit, color, and performance. Part number 671-4016 is cataloged as a direct replacement ignition wire set for the listed applications.