Dorman 901-236 HVAC Pressure Switch

Dorman 901-236 A/C Pressure Switch

Restore air conditioning performance with this Dorman HVAC pressure switch, part number 901-236. This direct replacement A/C transducer switch is built for specific-fit applications and addresses common failures caused by corroded terminals or a broken connector on the original sensor.

Compatible with Ford and Lincoln vehicles that use an R134A system, this pressure sensor helps the HVAC system monitor refrigerant pressure and maintain proper A/C operation. It is a practical replacement for Ford E-350 Super Duty, Ford F-150, and Lincoln Mark LT applications where the original switch has failed.

Key Features

• Direct replacement HVAC pressure switch for specific-fit applications
• Designed for R134A refrigerant systems
• 12-volt electrical design with 10-amp rating
• Black round connector with 2 male pin terminals
• Metal housing with screw-on mount and M10x1.5 thread diameter
• Pressure limits: closes at 435 and opens at 230
• Maximum pressure reading: 600 PSI

Detailed Description

Dorman 901-236 is an A/C pressure sensor intended to replace a damaged or corroded original transducer switch and restore normal air conditioning function. It uses a black, round connector with two male terminals and a screw-on mounting style for specific applications. The metal housing and pin-style terminal design support a direct-fit repair on vehicles equipped with R134A refrigerant.

This part cross-references Standard Ignition PCS124 and is used in applications such as Fits 2004-2006 Ford F-150, N/A; Fits 2004-2008 Ford Ranger, N/A; and Fits 2006 Lincoln Mark LT, N/A. It also applies to Ford E-350 Super Duty, Ford E-150, and Ford E-250 models listed in the fitment data. If your Ford F-150, Ranger, or Lincoln Mark LT has an inoperative A/C system tied to pressure sensor failure, this replacement is a direct service part to consider.

What It Helps Fix

• Air conditioning stops working because the pressure switch has failed
• Corroded terminals at the original A/C sensor
• Broken connector on the existing transducer switch
• Incorrect refrigerant pressure signal to the HVAC system
• Intermittent A/C operation caused by a faulty pressure sensor

Installation Notes and Tips

Verify the connector shape, terminal count, thread size, and refrigerant type before installation. This part uses a screw-on mount with M10x1.5 threads and a 2-terminal male connector, so matching the original sensor style is important for proper fitment. Confirm the vehicle is equipped for the listed application and inspect the connector and terminals for corrosion before installing the new switch.

Quality Assurance

Dorman supplies this replacement HVAC pressure switch as a direct-fit service part for specific vehicle applications. It is engineered to restore function where the original A/C transducer switch has failed due to electrical or connector-related damage.