YCUPONE AC Pressure Switch Sensor 6F9319D594AA — Single OE-Style Replacement for Ford/Mercury A/C

YCUPONE AC Pressure Switch Sensor 6F9319D594AA is a direct-fit replacement sensor that monitors refrigerant pressure for compatible Ford and Mercury A/C systems. This high-quality pressure switch restores proper A/C system monitoring by signaling low or high refrigerant pressure to the vehicle's climate control system. Designed as an OE-style replacement, it fits a wide range of late-1990s to mid-2010s Ford and Mercury models, matching common part numbers to simplify installation and sourcing. The sensor is supplied as a single unit and is an economical option for technicians, DIYers, and fleet maintenance teams seeking reliable performance without OEM pricing.

Which vehicles does this pressure switch work with?

The YCUPONE sensor covers many Ford and Mercury applications across model years. It explicitly fits models including Crown Victoria, Escape, Escort, Explorer variants, Five Hundred, Freestar, Freestyle, Thunderbird, Windstar, Mariner, Montego, Monterey, Mountaineer, LS, Town Car, and Grand Marquis.

• Specific fitment includes 1998–2006 and 2000–2012 ranges depending on model.
• Compatible with OEM part numbers 4673935, 6F9319D594AA, 6F9Z19D594AA and others.
• Intended for systems using the original style connector and mounting location.

How does installation and compatibility work?

This AC pressure switch is designed for plug-and-play replacement where the original connector and pressure port match. Installation typically requires basic hand tools and safety procedures for depressurizing the A/C system first, or professional servicing to avoid refrigerant release.

• Replace in-line with the factory switch—no reprogramming required.
• Verify matching part number and connector before installation.
• Follow proper A/C service procedures to evacuate and recharge refrigerant when needed.

What symptoms indicate the pressure switch needs replacing?

A failing pressure switch can cause intermittent or complete loss of A/C compressor engagement and may trigger climate system fault codes. Typical signs include no cold air, the compressor cycling on and off rapidly, or a diagnostic trouble code referencing low/high refrigerant pressure.

• Compressor does not engage when A/C is switched on.
• System cycles rapidly or blows warm air despite adequate refrigerant levels.
• Fault codes related to refrigerant pressure on a scan tool.

What are the part numbers and package contents?

The product arrives as one complete AC pressure switch compatible with multiple factory numbers. It replaces several OEM references so you can cross-check your vehicle's original part number for fitment confidence.

• Included: 1 x AC pressure switch sensor.
• Cross-reference numbers: 4673935, 6F9319D594AA, 6F9Z19D594AA, F6CZ19D594CB, GS3L61503A, ZZDA61503.
• Designed to match original electrical connector and mounting style for listed vehicles.

Who is this for This YCUPONE AC pressure switch is aimed at mechanics, independent shops, and do-it-yourself vehicle owners who need a dependable replacement part for Ford and Mercury air conditioning systems. Choose this sensor if you want an affordable, OE-style swap that restores proper pressure sensing in older vehicles where the original switch has failed, or when diagnosing intermittent A/C compressor engagement issues. Always verify part numbers and vehicle compatibility before purchase, and consider professional A/C service for refrigerant-handling tasks.

FAQ

Q: Does this sensor fit my Ford Explorer?

A: Yes—this YCUPONE sensor fits certain Explorer model years; verify your vehicle year and OEM part number before ordering.

Q: Is professional A/C service required to replace this switch?

A: Basic electrical swap may be simple, but refrigerant handling should be done by a certified technician.