Dorman 904-7405 A/C Refrigerant Pressure Sensor

Dorman 904-7405 A/C Pressure Sensor

Dorman 904-7405 is an A/C refrigerant pressure sensor built to match the original sensor’s fit and function on specified vehicles. It is engineered for dependable HVAC pressure signal monitoring in applications such as Honda Civic and Toyota Corolla service work where accurate refrigerant pressure data matters.

Key Features

• Direct replacement A/C refrigerant pressure sensor for specified HVAC systems
• Designed to match OE fit and function for straightforward service replacement
• Maximum pressure reading: 484
• Female connector with 2 terminals and blade-style terminals
• Screw-on mount with M10-1.25 thread diameter
• Tan/green sensor body color

Detailed Description

This Dorman HVAC sensor is built for vehicles that use an M10-1.25 threaded refrigerant pressure switch/sensor connection and a 2-terminal female blade connector. The sensor monitors A/C system pressure so the HVAC control system can respond correctly to refrigerant conditions. Dorman 904-7405 is a practical OE-style replacement for service on Honda Civic and Toyota Corolla applications where the original pressure sensor has failed or is reading inaccurately.

This part cross-references Monroe Shocks & Struts (e.g., 577.46608, 1017-1023) for the same application.

What It Helps Solve

• Inaccurate A/C pressure signal readings
• Intermittent compressor cycling caused by sensor faults
• A/C system shutdown triggered by pressure sensor failure
• HVAC performance issues related to refrigerant pressure monitoring
• Diagnostic trouble codes tied to the refrigerant pressure sensor circuit

Installation Notes and Tips

Verify the connector style, terminal count, thread size, and mount type before installation. Confirm the replacement sensor matches the vehicle’s original A/C pressure sensor configuration, especially on Honda Civic and Toyota Corolla HVAC repairs. Inspect the connector and sealing surfaces during service, and clear any stored HVAC or engine codes after installation if required by the vehicle.

Quality Assurance

Dorman designs this sensor to match the original part’s fit and function on specified vehicles and builds it for durable, reliable operation in automotive HVAC service.