NGK 52293 Spark Plug Wire Set

NGK Spark Plug Wire Set for Ford and Mercury Applications

NGK Spark Plug Wire Set 52293 is a specific-fit ignition wire set built for select Ford and Mercury vehicles from the 1983-1990 model years. It uses blue silicone insulation, an SMag core, and noise suppression construction to support stable spark delivery and reduced electrical interference.

Key Features

• Specific-fit spark plug wire set for confirmed Ford Mustang, Ranger, Thunderbird, Aerostar, LTD, and Mercury Capri, Cougar, and Marquis applications
• Blue silicone insulation for heat resistance and durability in the ignition bay
• SMag core material with noise suppression design
• 8.00 mm insulation outside diameter
• NGK part number 52293, also identified as RC-FDZ004

Product Details

As part of the NGK Spark Plug Wire Set line, this ignition wire set reflects NGK’s long-standing OE-focused engineering and manufacturing approach. NGK develops ignition components for domestic and import vehicles, with product coverage that includes spark plugs, glow plugs, ignition coils, coil-on-plug boots, and wire sets. For drivers servicing a Ford Mustang, Ford Ranger, or Mercury Cougar, NGK 52293 provides a direct replacement option for the listed applications.

This part cross-references Dayco 86052 and TYC 700354 for the same application.

What It Helps Address

• Misfires caused by worn or heat-damaged plug wires
• Hard starting related to weak spark transfer
• Ignition noise that can interfere with engine electronics
• Rough idle from deteriorated wire insulation or core wear
• Voltage loss across aging ignition leads

Installation Notes and Tips

Verify engine and ignition system configuration before ordering, especially on 1989-1990 Ford Ranger models with a single spark ignition system and 1983-1984 Mercury Capri or 1984-1985 Ford LTD applications with Electronic Engine Controls IV (E.E.C. IV). Route each lead to match the original layout, keep wires separated where possible, and confirm secure terminal engagement at the coil and spark plugs. For best results, inspect related ignition components such as plugs, cap, and rotor during service.

Quality Assurance

NGK is an established ignition specialist with extensive OE experience and a focus on durability and operational performance to meet OE standards. Part number 52293 is manufactured as a specific-fit replacement for the listed Ford and Mercury vehicles.

Vehicle Fitment

• Fits 1983-1990 Ford Mustang, N/A
• Fits 1985-1988 Ford Ranger, N/A
• Fits 1989-1990 Ford Ranger, N/A; Single Spark Ignition System
• Fits 1984-1988 Ford Thunderbird, N/A
• Fits 1986-1987 Ford Aerostar, N/A
• Fits 1986 Ford LTD, N/A
• Fits 1984-1985 Ford LTD, N/A; with Electronic Engine Controls IV (E.E.C. IV)
• Fits 1983 Ford Thunderbird, N/A; with Electronic Engine Controls IV (E.E.C. IV)
• Fits 1983-1984 Mercury Capri, N/A
• Fits 1985-1986 Mercury Capri, N/A; with Electronic Engine Controls IV (E.E.C. IV)
• Fits 1984-1986 Mercury Cougar, N/A
• Fits 1984-1986 Mercury Marquis, N/A