Walker 924-1392 Spark Plug Wire Set

Walker ThunderCore PRO Ignition Wire Set

Walker ThunderCore PRO spark plug wire set 924-1392 is built for direct-fit ignition service on select Ford and Mercury applications. It is manufactured in an ISO9001 certified facility in the USA and uses OE-style silicone boots and tips, stainless steel terminals, and tubes for dependable electrical transfer.

Compatible With 1994-1999 Ford Mustang, 1997 Ford Thunderbird, and 1994-1997 Mercury Cougar applications listed below, this wire set supports factory-style ignition performance while meeting or exceeding OEM specifications and test requirements.

Key Features

• Walker ThunderCore PRO line for OE-style ignition wire replacement
• Precision manufactured in the USA in an ISO9001 certified facility
• Hi-temp silicone boots and tips for heat resistance
• Stainless steel terminals and tubes for secure connections
• Includes dielectric grease for terminal service
• Built to meet or exceed OEM specifications and test requirements

Detailed Description

Part number 924-1392 is a spark plug wire set designed for ignition wire replacement on Ford Mustang, Ford Thunderbird, and Mercury Cougar models in the fitment list. The ThunderCore PRO product line focuses on OE-style construction with premium materials, including high-temperature silicone insulation and stainless steel terminal components, to help maintain consistent spark delivery and reliable connection quality.

This part cross-references PRENCO 35-87641 for the same application.

What It Helps Solve

• Misfires caused by worn or heat-damaged plug wires
• Hard starting related to weak ignition transfer
• Rough idle from deteriorated wire insulation or terminals
• Voltage leakage from cracked boots or aging wire jackets
• Intermittent ignition performance on older Ford and Mercury vehicles

Installation Notes and Tips

Verify engine application and routing before installation. Match each wire to the correct cylinder and keep the wires separated from hot exhaust components and sharp edges. Apply the supplied dielectric grease at the boot-to-plug and boot-to-coil connection points as directed during service.

Fits 1999 Ford Mustang, N/A; Fits 1994-1998 Ford Mustang, N/A; Fits 1997 Ford Thunderbird, N/A; Fits 1994-1997 Mercury Cougar, N/A; Fits 1994-1996 Ford Thunderbird, N/A for vehicles in California with Enhanced Evaporative System.

Quality Assurance

Walker Products manufactures ThunderCore PRO wire sets to meet or exceed OEM or equivalent standards, backed by the company’s manufacturing, product management, and engineering expertise.