Standard 4740 Spark Plug Wire Set

Ignition Wire Set for Classic Mazda and Ford Applications

Standard 4740 is a spark plug wire set for older Mazda, Ford, and Mercury applications that require direct ignition wire replacement. It supports reliable spark delivery for vehicles such as the Mazda 626, Mazda B2000, Ford Courier, and Mercury Capri.

Key Features

• Part number 4740 spark plug wire set
• Ignition wire replacement for select 1970s and 1980s vehicles
• Compatible with 1986-1987 Mazda 626, N/A
• Compatible with 1979-1984 Mazda B2000, N/A
• Compatible with 1972-1982 Ford Courier, N/A
• Compatible with 1970-1972 Mercury Capri, N/A

Detailed Description

Standard 4740 is built for owners restoring or maintaining older ignition systems where accurate spark plug wire routing and dependable electrical transfer matter. This spark plug wire set is listed for 1986-1987 Mazda 626, 1979-1984 Mazda B2000, 1972-1982 Ford Courier, and 1970-1972 Mercury Capri applications. If you are searching for a Mazda 626 spark plug wire set or a Ford Courier ignition wire replacement, part number 4740 matches the confirmed fitment shown here.

What It Helps Address

• Misfires caused by worn or deteriorated plug wires
• Hard starting related to weak spark delivery
• Rough idle from damaged ignition leads
• Voltage loss across aging wire insulation
• Service replacement for original ignition wire routing

Installation Notes and Tips

Match each wire to the correct cylinder before removal, then transfer one lead at a time to preserve firing order. Inspect distributor cap, rotor, and spark plugs during service so the new wires are installed into a clean ignition system. Confirm routing clears hot or moving engine components and follows the factory path for the vehicle.

Quality Assurance

Standard ignition components are selected for service replacement use in classic vehicle applications. Part number 4740 is cataloged for confirmed fitment on the listed Mazda, Ford, and Mercury models.