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Dorman 904-620 HVAC Pressure SwitchOE Quality 60-Day Returns
Part #: 904-620

Dorman 904-620 HVAC Pressure Switch

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168 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chrysler, Dodge, Jeep, Ram, and SRT, 300, Pacifica, Challenger, Charger, Durango, Compass, Wrangler, 1500, 1500 Classic, 2500, 3500, ProMaster 1500, ProMaster 2500, ProMaster 3500, Grand Caravan, Cherokee, Journey, Grand Cherokee, Wrangler JK, 200, Viper, Patriot, ProMaster City, ProMaster Rapid, Town & Country, Dart, Renegade, and Caliber
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Not what you need? See all HVAC Pressure Switch options

Dorman 904-620 A/C Pressure Switch

Dorman 904-620 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 A/C operation on supported Chrysler, Dodge, Jeep, and Ram vehicles.

  • Direct replacement A/C transducer switch for 12V systems
  • Specific fit design for select Chrysler, Dodge, Jeep, and Ram applications
  • Brown round female connector with 2 male terminals
  • Metal housing with bolt-on mount and 10 mm thread diameter
  • Pressure limits: closed at 260 and open at 475
  • Maximum pressure reading: 1250 PSI
  • Cross-references Mopar 68308727AA and Four Seasons 37368 for the same application

Detailed Product Overview

This HVAC pressure switch is built for vehicles using R134A refrigerant and a 12-volt electrical system. It is a specific-fit replacement for select Chrysler 300, Dodge Charger, Jeep Wrangler, Ram 1500, and other listed models, making it a practical choice when the original A/C transducer switch has failed due to connector damage or terminal corrosion. Dorman 904-620 is engineered to restore proper pressure-sensing function in the air conditioning circuit without changing the original system layout.

What It Helps Fix

  • Air conditioning that stops cycling or stops working after switch failure
  • Corroded terminals at the original pressure switch connector
  • Broken or damaged connector at the A/C transducer switch
  • Incorrect pressure signal to the HVAC control system
  • Loss of A/C operation on R134A-equipped vehicles

Installation Notes

Verify the connector style, thread diameter, and refrigerant type before installation. This part uses a round brown female connector, 2 terminals, and a bolt-on mount with a 10 mm thread diameter. Confirm the vehicle uses the listed pressure switch application and match the original electrical and mounting configuration before replacement.

Quality Assurance

Dorman replacement parts are built as direct-fit service components for repair work on original equipment systems. This pressure switch is intended to restore factory-style A/C pressure control on the listed applications.

BrandDorman
Part Number904-620
Amperage Rating4
ColorBrown
Connector ColorBrown
Connector GenderFemale
Connector ShapeRound
Housing MaterialMetal
Maximum Pressure Reading1250 PSI
Mount TypeBolt On
Mounting Bracket IncludedNo
Package Contents1 A/C Pressure Switch
Pressure Limit Closed260
Pressure Limit Open475
Refrigerant TypeR134A
Terminal GenderMale
Terminal Quantity2
Terminal TypePin
Thread Diameter10 mm
Universal Or Specific FitSpecific
Voltage12
Wire Quantity0

This part fits 168 vehicles. Search below:

YearMakeModelPositionNotes
2021Chrysler300N/A
2021ChryslerPacificaN/A
2021DodgeChallengerN/A
2021DodgeChargerN/A
2021DodgeDurangoN/A
2021JeepCompassN/A
2021JeepWranglerN/A
2021Ram1500N/A
2021Ram1500 ClassicN/A
2021Ram2500N/A
2021Ram3500N/A
2021RamProMaster 1500N/A
2021RamProMaster 2500N/A
2021RamProMaster 3500N/A
2020Chrysler300N/A
2020ChryslerPacificaN/A
2020DodgeChallengerN/A
2020DodgeChargerN/A
2020DodgeDurangoN/A
2020JeepCompassN/A
2020JeepWranglerN/A
2020Ram1500N/A
2020Ram1500 ClassicN/A
2020Ram2500N/A
2020Ram3500N/A
2020RamProMaster 1500N/A
2020RamProMaster 2500N/A
2020RamProMaster 3500N/A
2019Chrysler300N/A
2019ChryslerPacificaN/A
2019DodgeChallengerN/A
2019DodgeChargerN/A
2019DodgeDurangoN/A
2019DodgeGrand CaravanN/A
2019JeepCherokeeN/A
2019JeepCompassN/A
2019JeepWranglerN/A
2019Ram1500N/A
2019Ram1500 ClassicN/A
2019Ram2500N/A
2019Ram3500N/A
2019RamProMaster 1500N/A
2019RamProMaster 2500N/A
2019RamProMaster 3500N/A
2018ChryslerPacificaN/A
2018DodgeChallengerN/A
2018DodgeDurangoN/A
2018DodgeGrand CaravanN/A
2018DodgeJourneyN/A
2018JeepCherokeeN/A
2018JeepCompassN/A
2018JeepGrand CherokeeN/A
2018JeepWranglerN/A
2018JeepWrangler JKN/A
2018Ram1500N/A
2018Ram2500N/A
2018Ram3500N/A
2018RamProMaster 1500N/A
2018RamProMaster 2500N/A
2018RamProMaster 3500N/A
2017Chrysler200N/A
2017ChryslerPacificaN/A
2017DodgeChallengerN/A
2017DodgeDurangoN/A
2017DodgeGrand CaravanN/A
2017DodgeJourneyN/A
2017DodgeViperN/A
2017JeepCherokeeN/A
2017JeepCompassN/A
2017JeepGrand CherokeeN/A
2017JeepPatriotN/A
2017JeepWranglerN/A
2017Ram1500N/A
2017Ram2500N/A
2017Ram3500N/A
2017RamProMaster 1500N/A
2017RamProMaster 2500N/A
2017RamProMaster 3500N/A
2017RamProMaster CityN/A
2017RamProMaster RapidN/A
2016Chrysler200N/A
2016ChryslerTown & CountryN/A
2016DodgeChallengerN/A
2016DodgeDartN/A
2016DodgeDurangoN/A
2016DodgeGrand CaravanN/A
2016DodgeJourneyN/A
2016DodgeViperN/A
2016JeepCherokeeN/A
2016JeepCompassN/A
2016JeepGrand CherokeeN/A
2016JeepPatriotN/A
2016JeepWranglerN/A
2016Ram1500N/A
2016Ram2500N/A
2016Ram3500N/A
2016RamProMaster 1500N/A
2016RamProMaster 2500N/A
2016RamProMaster 3500N/A
2016RamProMaster CityN/A
2015Chrysler200N/A
2015ChryslerTown & CountryN/A
2015DodgeChallengerN/A
2015DodgeDartN/A
2015DodgeDurangoN/A
2015DodgeGrand CaravanN/A
2015DodgeJourneyN/A
2015DodgeViperN/A
2015JeepCherokeeN/A
2015JeepCompassN/A
2015JeepGrand CherokeeN/A
2015JeepPatriotN/A
2015JeepRenegadeN/A
2015JeepWranglerN/A
2015Ram1500N/A
2015Ram2500N/A
2015Ram3500N/A
2015RamProMaster 1500N/A
2015RamProMaster 2500N/A
2015RamProMaster 3500N/A
2015RamProMaster CityN/A
2014Chrysler200N/A
2014ChryslerTown & CountryN/A
2014DodgeChallengerN/A
2014DodgeDartN/A
2014DodgeDurangoN/A
2014DodgeGrand CaravanN/A
2014DodgeJourneyN/A
2014JeepCherokeeN/A
2014JeepCompassN/A
2014JeepGrand CherokeeN/A
2014JeepPatriotN/A
2014JeepWranglerN/A
2014Ram1500N/A
2014Ram2500N/A
2014Ram3500N/A
2014RamProMaster 1500N/A
2014RamProMaster 2500N/A
2014RamProMaster 3500N/A
2013Chrysler200N/A
2013ChryslerTown & CountryN/A
2013DodgeChallengerN/A
2013DodgeDartN/A
2013DodgeDurangoN/A
2013DodgeGrand CaravanN/A
2013DodgeJourneyN/A
2013JeepCompassN/A
2013JeepGrand CherokeeN/A
2013JeepPatriotN/A
2013JeepWranglerN/A
2013Ram1500N/A
2013Ram2500N/A
2013Ram3500N/A
2012JeepCompassN/A
2012JeepGrand CherokeeN/A
2012JeepPatriotN/A
2011DodgeCaliberN/A
2011JeepCompassN/A
2011JeepPatriotN/A
2010DodgeCaliberN/A
2010JeepCompassN/A
2010JeepPatriotN/A
2009DodgeCaliberN/A
2009JeepCompassN/A
2009JeepPatriotN/A
2008DodgeCaliberN/A
2008JeepCompassN/A
2008JeepPatriotN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

3736868308727AAPCS160

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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