Four Seasons 20997 HVAC Pressure Transducer

Four Seasons 20997 Pressure Switch

Four Seasons 20997 is a system-mounted HVAC pressure transducer built for BMW and Mini applications that rely on accurate refrigerant pressure feedback. With a 3-pin rectangular male connector, steel construction, and Weather Pack protection, it supports dependable signal transfer in demanding underhood conditions.

Key Features

• HVAC pressure transducer for system-mounted applications
• 3/8 in. x 24 male thread for direct connection
• 3-terminal rectangular male connector
• Steel housing for durability
• Weather Pack design for improved connector protection
• Variable open/closed operation with open at 0 psi
• Meets or exceeds OEM requirements

Product Details

This Four Seasons Pressure Switch line part is engineered for vehicles that depend on precise A/C pressure monitoring to manage compressor operation and system protection. Part number 20997 cross-references Global Parts Distributors LLC 1711679 for the same application. It is used across a wide range of BMW and Mini models, including BMW 330i, BMW X5, BMW M3, BMW 530i, and Mini Cooper applications listed in the fitment data.

As an HVAC pressure transducer, this component helps the climate control system read refrigerant pressure and communicate that information to the vehicle’s control strategy. The result is stable system response in BMW and Mini HVAC setups that require a direct-fit pressure switch with the correct thread, connector style, and terminal count.

Common Issues This Part May Address

• Inaccurate A/C pressure signal readings
• Compressor cycling problems tied to pressure feedback
• HVAC system shutdown caused by faulty pressure input
• Intermittent A/C operation from damaged connector or terminals
• Pressure switch replacement needs on BMW and Mini HVAC systems

Installation Notes and Tips

Verify the connector shape, 3-pin terminal layout, and 3/8 in. x 24 thread before installation. Confirm the vehicle’s HVAC system uses a system-mounted pressure transducer and match the fitment listing exactly, especially on BMW 330i, BMW 530i, BMW X3, BMW X5, and Mini Cooper applications. Inspect the connector seal and surrounding refrigerant line or mounting point for wear before installing the new switch.

Quality Assurance

Four Seasons 20997 meets or exceeds OEM requirements and is built with a steel body and Weather Pack connector protection for reliable service in HVAC pressure monitoring applications.