Standard Ignition 6690 Spark Plug Wire Set

Ignition Wire Set for Mercury and Mazda

Standard Ignition 6690 is a spark plug wire set built for direct-fit service on select Mercury and Mazda applications. It uses silicone wire construction and high-temperature spark plug boots to handle heat, abrasion, and other underhood conditions that can shorten wire life.

• Silicone wire construction for durable ignition performance
• High-temperature spark plug boots for added heat resistance
• High dielectric protection to help maintain spark integrity
• Abrasion-resistant design for harsh engine compartment conditions
• Direct replacement for select 2000-2002 Mercury Cougar and Mazda MPV applications

Fitment Details

Compatible With 2001-2002 Mercury Cougar, N/A. Compatible With 2000-2001 Mazda MPV, N/A, from 10/18/00. Standard Ignition 6690 is also cross-referenced with AMS Automotive 4722 for the same application.

What It Helps Address

• Misfires caused by worn or heat-damaged plug wires
• Hard starting related to weak spark delivery
• Rough idle from deteriorated ignition wire insulation
• Voltage leakage in high-heat engine bay conditions
• Premature wire wear from abrasion and engine compartment exposure

Installation Notes

Verify vehicle application by year and model before installation. Route the wires to match the original layout and keep them clear of hot or moving components. Confirm each boot seats fully on the spark plug and ignition connection for proper contact.

Quality Assurance

Standard Ignition 6690 is built with premium silicone materials and high-dielectric protection to support long-term durability in demanding ignition service.