Denso 671-6150 Spark Plug Wire Set

Denso 671-6150 Ignition Wire Set

Denso 671-6150 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 select Mercedes-Benz applications, including Mercedes-Benz S320, C280, C36 AMG, E320, SL320, 300CE, 300E, and 300TE.

Key Features

• 7mm insulation outside diameter for OE-style ignition wire routing and fit
• Silicone spark plug boot material for heat resistance and flexibility
• Female distributor coil end terminal type
• 180-degree spark plug end boot design for proper connection clearance
• Female spark plug end terminal type
• Built to meet or exceed OE/OES standards in construction

Product Details

The Denso 671-6150 ignition wire set is part of Denso First Time Fit, a product line focused on direct OE-style replacement parts. This line is engineered to mirror the original wire set’s dimensions and connection style, helping maintain the same routing, terminal engagement, and performance characteristics expected from the factory setup. For Mercedes-Benz ignition service, this wire set supports clean spark delivery across the ignition system while preserving the original fitment profile.

Compatible With 1994-1999 Mercedes-Benz S320, 1994-1997 Mercedes-Benz C280, 1995-1997 Mercedes-Benz C36 AMG, 1994-1997 Mercedes-Benz E320, 1994-1997 Mercedes-Benz SL320, 1993 Mercedes-Benz 300CE, 1993 Mercedes-Benz 300E, and 1993 Mercedes-Benz 300TE. This part cross-references NGK EUC061 and Bosch 09385 for the same application.

Common Issues This Part Can Address

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

Installation Notes and Tips

Verify engine application and wire routing before installation. Match each lead to the original routing path to avoid crossfire or heat exposure. Inspect spark plugs, distributor components, and coil connections at the same time, since worn ignition parts can affect wire performance. Confirm the female terminal ends and 180-degree boot orientation align with the vehicle’s original configuration.

Quality Assurance

Denso First Time Fit ignition wire sets are manufactured to OE-style specifications and built to meet or exceed OE/OES standards for form and performance.