Four Seasons 20972 HVAC Pressure Transducer

Four Seasons 20972 Pressure Transducer

Four Seasons 20972 is a system-mounted HVAC pressure transducer built for vehicles that rely on accurate refrigerant pressure feedback. With a 3-pin rectangular female connector and a 7/16 in. x 20 female fitting thread, it supports precise pressure signal input for the air conditioning control system.

Compatible with select Porsche, Volkswagen, and Audi applications, including Porsche 911, Volkswagen Jetta, and Audi TT Quattro models, this Four Seasons Pressure Switch line part is made to meet or exceed OEM requirements. The 20972 part number is also used across multiple cross-reference applications for direct replacement service.

Key Features

• HVAC pressure transducer for system-mounted applications
• Rectangular female connector with 3 terminals
• 7/16 in. x 20 female threaded fitting
• Plastic and metal construction
• Variable open/closed operation for pressure signal control
• Meets or exceeds OEM specifications

Detailed Description

The Four Seasons Pressure Switch brand line focuses on HVAC pressure control components used to monitor refrigerant system pressure and relay that information to the vehicle’s climate control circuitry. Part number 20972 is a transducer-style pressure switch designed for direct system mounting, helping maintain proper compressor operation and pressure-based control logic in the air conditioning system.

This part is a fitment-based replacement for a wide range of Audi, Porsche, and Volkswagen models, including Porsche Cayenne, Volkswagen Passat, and Audi Q7 applications. This part cross-references UAC SW11103C and URO 1K0959126D for the same application.

What It Is Used For

• Restoring HVAC pressure signal accuracy
• Addressing compressor cycling concerns tied to pressure feedback
• Replacing a failed pressure transducer or pressure switch
• Correcting air conditioning system fault codes related to pressure input
• Supporting proper refrigerant system control on select Audi, Porsche, and Volkswagen vehicles

Installation Notes and Tips

Verify connector shape, terminal count, and fitting thread before installation. Confirm the vehicle uses a system-mounted pressure transducer with a 7/16 in. x 20 female thread and 3-pin rectangular connector. After installation, inspect the HVAC system for proper refrigerant charge and check for stored fault codes to confirm the pressure signal is being read correctly.

Quality Assurance

Four Seasons 20972 is manufactured to meet or exceed OEM specifications for pressure transducer applications. It is intended as a direct replacement for select factory-style HVAC pressure switch setups on Porsche, Volkswagen, and Audi platforms.