Four Seasons 20950 HVAC Binary Switch

Four Seasons 20950 HVAC Binary Pressure Switch

The Four Seasons Pressure Switch 20950 is a system-mounted HVAC binary switch built for pressure monitoring in automotive air conditioning systems. It uses a round female connector, a 2-terminal layout, and a steel body with a 3/8 in. x 24 fitting thread size for direct replacement service.

Compatible with select Kia, Mazda, and other import applications, this Four Seasons 20950 pressure switch meets or exceeds OEM requirements and is built for pressure-based A/C system control.

Key Features

• HVAC binary pressure switch for automotive A/C systems
• System-mounted design with open compressor circuit state
• Round female connector with 2 terminals
• Steel construction for service replacement use
• 3/8 in. x 24 fitting thread size
• Meets or exceeds OEM specifications

Product Details

Four Seasons Pressure Switch 20950 is a binary pressure switch used in HVAC systems to monitor refrigerant pressure and support proper compressor circuit operation. The system-mounted design and open comp state make it a direct-fit style replacement for vehicles that use this configuration. This part number 20950 is commonly referenced for import applications including Mazda Miata, Mazda MPV, Mazda Protege, Mazda 626, Mazda MX-6, Mazda MX-3, Kia Rio, and Kia Sephia.

This part cross-references Global Parts Distributors LLC 1711490 for the same application.

Vehicle Fitment

• Fits 2001-2002 Kia Rio, Pressure Switch
• Fits 1998-2001 Kia Sephia, Pressure Switch
• Fits 1999-2000 Mazda Miata, Pressure Switch
• Fits 1995-1997 Mazda Miata, Pressure Switch
• Fits 1993-1998 Mazda MPV, Pressure Switch
• Fits 1996-1998 Mazda Protege, Pressure Switch
• Fits 1994-1996 Mazda 626, Pressure Switch
• Fits 1994-1996 Mazda MX-6, Pressure Switch
• Fits 1994-1995 Mazda MX-3, Pressure Switch

Common Replacement Symptoms

• A/C compressor cycling issues caused by pressure switch failure
• Intermittent compressor engagement in Mazda Miata or Mazda Protege applications
• HVAC system pressure signal faults
• Loss of compressor control in Kia Rio or Kia Sephia systems
• Pressure switch replacement during A/C service or diagnosis

Installation Notes

Verify connector shape, terminal count, and fitting thread size before installation. Confirm the system-mounted location and compare the original switch to the replacement part number 20950 to ensure proper match. Always inspect the HVAC system for refrigerant pressure concerns and electrical connector condition during service.

Quality Assurance

Four Seasons 20950 is built to meet or exceed OEM requirements for pressure switch replacement service. The steel construction and OE-style configuration support dependable fitment in the listed Kia and Mazda applications.