Four Seasons 20958 A/C Clutch Cycle Switch

Four Seasons 20958 A/C Clutch Cycle Switch

Four Seasons 20958 is a pressure-based A/C clutch cycle switch for system-mounted HVAC applications. It uses a 12-volt, 2-terminal design with a female M12 x 1.50 fitting and Weather Pack connection support for dependable electrical routing in the air conditioning system.

Built with plastic and metal construction and meeting OEM requirements, this Four Seasons Pressure Switch is a direct-fit service part for Ford E-Series vans and related Econoline applications. It is commonly searched as a Ford E-350 Super Duty pressure switch replacement and a Ford E-150 A/C clutch cycle switch replacement.

Key Features

• Four Seasons Pressure Switch, part number 20958
• A/C clutch cycle switch with system-mount design
• Female M12 x 1.50 threaded fitting
• 2-pin, male terminal configuration
• 12-volt electrical specification
• Plastic and metal construction
• Weather Pack connection support
• Meets or exceeds OEM requirements

Product Details

This pressure switch monitors HVAC system pressure and cycles the A/C clutch based on operating conditions. The switch opens at 0 psi and operates at a low-off pressure of 19 psi, helping maintain proper compressor control in Ford E-150, E-250, E-350 Super Duty, Econoline Van, Econoline Wagon, and related Econoline models. If you are replacing a Ford E-350 Super Duty A/C pressure switch or a Ford Econoline pressure cycling switch, Four Seasons 20958 is built for that application.

This part cross-references Global Parts Distributors LLC 1711531 for the same application.

What It Helps Fix

• Intermittent A/C compressor cycling
• Compressor engagement issues caused by pressure switch failure
• HVAC system shutdown from incorrect pressure signal
• Loss of cooling performance in Ford E-Series and Econoline vehicles
• Faulty pressure switch electrical connection at the system mount

Installation Notes

Install at the system-mounted pressure switch location and verify the M12 x 1.50 female thread matches the original connection. Confirm the 2-terminal pin layout and Weather Pack-style connector before installation. Always compare the original switch, connector style, and vehicle application before service on Ford E-150, E-250, E-350 Super Duty, and Econoline models.

Quality Assurance

Four Seasons 20958 meets or exceeds OEM specifications for the listed applications. Four Seasons Pressure Switch parts are built for service replacement use in HVAC systems where accurate pressure cycling is required.