Dorman 904-614 HVAC Pressure Switch

Volvo A/C Pressure Switch Replacement

Dorman 904-614 is a direct replacement HVAC pressure switch for R134A air conditioning systems. It addresses common failures caused by corroded terminals or a damaged connector, helping restore proper A/C pressure signal input on supported Volvo applications.

Key Features

• Direct replacement A/C transducer switch for specific Volvo vehicles
• 5-volt electrical design with 3 blade terminals
• Black rectangular female connector with metal housing
• Thread diameter: 10 mm
• Pressure limits: closed at 260 and open at 475
• Maximum pressure reading: 522 PSI
• Specific fit for R134A refrigerant systems
• Cross-reference: Four Seasons 37384

Detailed Description

This HVAC pressure switch is built for specific Volvo fitments including S40, V50, C30, XC70, XC60, V60, S60, V40, and S60 Cross Country applications. Dorman 904-614 is intended to replace a failed original A/C transducer switch when the issue is traced to electrical connector damage or terminal corrosion, helping the system read refrigerant pressure correctly.

Use this part when servicing Volvo S40, V50, or XC60 air conditioning systems that rely on a 5-volt pressure sensor signal. The part number 904-614 is also listed as an interchange for 31292004.

What It Can Help Fix

• Air conditioning that stops cycling or responding correctly
• Faults caused by corroded switch terminals
• Problems from a broken original connector
• Incorrect refrigerant pressure signal to the HVAC system
• Loss of A/C operation on R134A-equipped Volvo models

Installation Notes and Tips

Confirm the vehicle uses the listed specific fitment before installation. Inspect the connector, terminals, and sealing surface for damage before replacing the switch. This unit mounts with a bolt and uses a 10 mm thread diameter, so verify the original sensor style and connector shape match the vehicle harness and housing.

Compatible With 2005-2012 Volvo S40, 2006-2011 Volvo V50, 2007-2013 Volvo C30, 2008-2016 Volvo XC70, 2010-2017 Volvo XC60, 2011-2018 Volvo S60, 2013-2017 Volvo V60, 2014-2015 Volvo V40, and 2018 Volvo S60 Cross Country.

Quality Assurance

Dorman manufactures replacement parts for direct-fit service applications, and this HVAC pressure switch is built to match the specified electrical and mechanical requirements for the listed Volvo vehicles.