How to service A/C Compressor Cut-Out Switches (high-pressure sensor/switch) on Dodge Ram 3500 Van?

Before approaching the high pressure sensor/switch, make sure to cut and isolate the negative battery cable. Remove the wire harness connector from the high pressure cut-off switch which is connected to a fitting on the tube between the compressor and the condenser inlet. Take out the high pressure cut-off switch from inside the discharge line fitting by unscrewing it and remove it from the vehicle, throwing out the O-ring seal from the discharge line fitting as well. During installation, lubricate an O-ring seal with clean oil meant for R-134a and fit it on the discharge line fitting, while only using O-rings made of special material for your system and the suggested refrigerant oil for your compressor. Set the high pressure cut-off switch on the discharge line fitting to 7.5 Nm (5.5 ft. lbs.), install the wire harness connector into the switch and afterwards, attach the battery negative cable again.

OEM Dodge Ram 3500 Van A/C Compressor Cut-Out Switches

HVAC Cut-Out Switch

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2 A/C Compressor Cut-Out Switches found

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Dodge Ram 3500 Van Pressure Switch Part Number: 4897617AA
Product Specifications
- Other Name: Switch - A/C High Pressure Cut Off; HVAC Pressure Switch; A/C Compressor Cut-Out; Trinary Switch.; Lower Pressure Cut-Off Switch; High Pressure Cut-Off Switch; Switch; Switch A/C High Pressure Cut Off
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1999-2003 Dodge Ram 3500 Van | Base | 8 Cyl 5.2 L CNG, 8 Cyl 5.2 L GAS, 8 Cyl 5.2 L LPG, 8 Cyl 5.9 L GAS
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Dodge Ram 3500 Van Pressure Switch Part Number: 4897612AB
Product Specifications
- Other Name: Switch - A/C Low Pressure Cut Off; HVAC Pressure Switch; A/C Compressor Cut-Out; Trinary Switch.; Lower Pressure Cut-Off Switch; Switch; Switch A/C Low Pressure Cut Off
- Replaces: 5012330AA, 5012330AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1999-2003 Dodge Ram 3500 Van | Base | 8 Cyl 5.2 L CNG, 8 Cyl 5.2 L GAS, 8 Cyl 5.2 L LPG, 8 Cyl 5.9 L GAS

Dodge Ram 3500 Van A/C Compressor Cut-Out Switches

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Dodge Ram 3500 Van A/C Compressor Cut-Out Switches Parts and Q&A

Pressure Switch
4897617AA
Q: How to service A/C Compressor Cut-Out Switches (high-pressure sensor/switch) on Dodge Ram 3500 Van?
A:
Before approaching the high pressure sensor/switch, make sure to cut and isolate the negative battery cable. Remove the wire harness connector from the high pressure cut-off switch which is connected to a fitting on the tube between the compressor and the condenser inlet. Take out the high pressure cut-off switch from inside the discharge line fitting by unscrewing it and remove it from the vehicle, throwing out the O-ring seal from the discharge line fitting as well. During installation, lubricate an O-ring seal with clean oil meant for R-134a and fit it on the discharge line fitting, while only using O-rings made of special material for your system and the suggested refrigerant oil for your compressor. Set the high pressure cut-off switch on the discharge line fitting to 7.5 Nm (5.5 ft. lbs.), install the wire harness connector into the switch and afterwards, attach the battery negative cable again.