How to service A/C Compressor Cut-Out Switches (low pressure sensor/switch) on 2003 Dodge Ram 3500 Van?

The first step to servicing the low pressure sensor/switch is to separate and secure the battery negative cable. Release the socket connector plug from the low pressure cut-off switch located close to the filter-drier, on the suction line jumper. Open the fitting on the suction line jumper, unscrew the low pressure cut-off switch and discard the O-ring you find inside. Apply clean refrigerant oil to a new O-ring seal, install it on the suction line jumper fitting and ensure to use only O-rings and oil specific to R-134a and the make of your vehicle's compressor. Put the low pressure cut-off switch on the suction line jumper fitting and tighten it to 4 Nm (2.9 ft. lbs.). Plug the wire harness connector into the switch and then reconnect the battery negative cable.

OEM 2003 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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2003 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
- Item Weight: 0.50 Pounds
- Item Dimensions: 1.1 x 1.1 x 2.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4897617AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2003 Dodge Ram 3500 Van Submodels:
- 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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2003 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
- Item Weight: 0.40 Pounds
- Item Dimensions: 2.1 x 0.9 x 0.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 4897612AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2003 Dodge Ram 3500 Van Submodels:
- 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

2003 Dodge Ram 3500 Van A/C Compressor Cut-Out Switches Parts and Q&A

Q: How to service A/C Compressor Cut-Out Switches (low pressure sensor/switch) on 2003 Dodge Ram 3500 Van?
A: The first step to servicing the low pressure sensor/switch is to separate and secure the battery negative cable. Release the socket connector plug from the low pressure cut-off switch located close to the filter-drier, on the suction line jumper. Open the fitting on the suction line jumper, unscrew the low pressure cut-off switch and discard the O-ring you find inside. Apply clean refrigerant oil to a new O-ring seal, install it on the suction line jumper fitting and ensure to use only O-rings and oil specific to R-134a and the make of your vehicle's compressor. Put the low pressure cut-off switch on the suction line jumper fitting and tighten it to 4 Nm (2.9 ft. lbs.). Plug the wire harness connector into the switch and then reconnect the battery negative cable.