SKP SKUS104L Ignition Switch

Ignition Switch for Ford and Mercury Applications

The SKP SKUS104L ignition switch restores reliable electrical control for a wide range of classic Ford, Lincoln, and Mercury vehicles. It is a direct-fit replacement for worn or failing ignition switch assemblies on models such as the Ford Mustang, Ford Ranger, and Mercury Grand Marquis.

• Direct replacement ignition switch for select Ford, Lincoln, and Mercury vehicles
• Fits applications from 1978-1991 across multiple car and truck platforms
• Supports key-start, accessory, and run-position electrical function
• Cross-references Monroe Shocks & Struts 4H1077 and 12323022 for the same application
• Part number: SKUS104L

Fitment Details

• Fits 1984-1991 Ford Ranger, N/A
• Fits 1984-1989 Ford Bronco II, N/A
• Fits 1987-1989 Ford LTD Crown Victoria, N/A
• Fits 1987-1989 Mercury Colony Park, N/A
• Fits 1983-1989 Mercury Grand Marquis, N/A
• Fits 1981-1987 Ford Escort, N/A
• Fits 1984-1987 Ford Tempo, N/A
• Fits 1981-1987 Mercury Lynx, N/A
• Fits 1984-1987 Mercury Topaz, N/A
• Fits 1979-1986 Ford LTD, N/A
• Fits 1979-1986 Ford Mustang, N/A
• Fits 1981-1984 Lincoln Town Car, N/A
• Fits 1978-1983 Ford Fairmont, N/A
• Fits 1982-1983 Lincoln Continental, N/A
• Fits 1980 Lincoln Continental, N/A
• Fits 1980-1983 Lincoln Mark VI, N/A
• Fits 1978-1983 Mercury Zephyr, N/A
• Fits 1980-1982 Ford Thunderbird, N/A
• Fits 1979-1982 Mercury Cougar, N/A
• Fits 1979-1982 Mercury Marquis, N/A
• Fits 1979-1980 Ford Fiesta, N/A
• Fits 1980 Lincoln Versailles, N/A

Common Problems This Part Can Address

• Intermittent no-start condition when turning the key
• Loss of accessory, run, or start electrical positions
• Electrical contact wear inside the ignition switch
• Key position inconsistency or delayed starter engagement
• Restoration work on Ford Mustang, Ford Ranger, and Mercury Grand Marquis models

Installation Notes

Verify the original switch style and connector layout before installation. Compare the existing part number and vehicle application carefully, especially on older Ford, Lincoln, and Mercury platforms where trim and production changes can affect fitment. Professional installation is recommended for proper electrical function and ignition system operation.

Quality Assurance

SKP supplies replacement ignition components for direct-fit service applications. The SKUS104L is built to match the listed vehicle coverage and interchange references for dependable replacement selection.