How to Install an HVAC Pressure Switch on 2009 Dodge Ram 2500?

To install the HVAC pressure switch, lubricate a new rubber O-ring with clean refrigerant oil and install it to the discharge line fitting. Tighten the switch to 5.1 Nm and connect the wire harness and reconnect the negative battery cable. Use the specific O-ring and refrigerant oil.

OEM 2009 Dodge Ram 2500 HVAC Pressure Switch

Air Pressure Switch

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5 HVAC Pressure Switches found

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2009 Dodge Ram 2500 Check Valve Part Number: 5003461AA
$21.66 MSRP: $31.95
You Save: $10.29 (33%)
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Product Specifications
- Other Name: Valve Core - A/C Line, Low Side Adapter; Service Valve; HVAC Pressure Switch; A/C Trinary Switch; Pressure Switch; Service Valve; Suction Line Valve; Discharge Line Valve; Tube Assembly Valve.
- Replaces: 5011346AA
- Item Weight: 0.50 Pounds
- Item Dimensions: 0.3 x 3.8 x 4.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5003461AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
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Fits the following 2009 Dodge Ram 2500 Submodels:
- Laramie, Power Wagon, SLT, ST, SXT, TRX | 6 Cyl 6.7 L DIESEL, 8 Cyl 5.7 L GAS
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2009 Dodge Ram 2500 Check Valve Part Number: 5179284AA
$16.93 MSRP: $25.05
You Save: $8.12 (33%)
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Product Specifications
- Other Name: Valve - A/C Line; High & Low Side Charging Adapters; Compressor Cut-Out Switch; System Valve Core; Fill Valve; Liquid Line Valve; Valve; Valve Core A/C Line; Valve Charging
- Item Weight: 0.40 Pounds
- Item Dimensions: 0.6 x 0.6 x 1.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5179284AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2009 Dodge Ram 2500 Submodels:
- Laramie, Power Wagon, SLT, ST, SXT, TRX | 6 Cyl 6.7 L DIESEL, 8 Cyl 5.7 L GAS
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2009 Dodge Ram 2500 Pressure Switch Part Number: 5174039AB
$118.97 MSRP: $175.00
You Save: $56.03 (33%)
Product Specifications
- Other Name: Valve - A/C Pressure Transducer; Refrigerant, HVAC, Compressor, Trinary Switches; Pressure Transducer; Includes O-Ring and Item #4; Discharge Line Valve.
- Replaces: 5175684AA, 5189363AA, 5096084AA, 5174039AA
- Item Weight: 0.40 Pounds
- Item Dimensions: 1.1 x 1.2 x 2.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5174039AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2009 Dodge Ram 2500 Submodels:
- Laramie, Power Wagon, SLT, ST, SXT, Sport, TRX, TRX4 | 6 Cyl 5.9 L DIESEL, 6 Cyl 6.7 L DIESEL, 8 Cyl 5.7 L GAS
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2009 Dodge Ram 2500 Liquid Line Valve Part Number: 5073614AA
Product Specifications
- Other Name: Valve - A/C Line; A/C Low Side Charging Adapter; A/C Compressor Cut-Out Switch; A/C System Valve Core; Valve; Valve Core A/C Line
- Item Weight: 0.40 Pounds
- Item Dimensions: 1.0 x 0.7 x 0.7 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5073614AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2009 Dodge Ram 2500 Submodels:
- Laramie, SLT, ST, SXT | 10 Cyl 8.0 L GAS, 6 Cyl 5.9 L DIESEL, 6 Cyl 6.7 L DIESEL, 8 Cyl 5.7 L GAS
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2009 Dodge Ram 2500 Pressure Valve Part Number: 5189365AB
Product Specifications
- Other Name: Valve - A/C Line; A/C Compressor Cut-Out Switch; A/C System Valve Core; Liquid Line Valve; Valve; Valve Core A/C Line
- Replaces: 5189365AA
- Item Weight: 0.40 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5189365AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
More Info
Fits the following 2009 Dodge Ram 2500 Submodels:
- Laramie, SLT, SXT | 6 Cyl 6.7 L DIESEL, 6.7L L6

2009 Dodge Ram 2500 HVAC Pressure Switch Parts and Q&A

Q: How to Install an HVAC Pressure Switch on 2009 Dodge Ram 2500?
A: To install the HVAC pressure switch, lubricate a new rubber O-ring with clean refrigerant oil and install it to the discharge line fitting. Tighten the switch to 5.1 Nm and connect the wire harness and reconnect the negative battery cable. Use the specific O-ring and refrigerant oil.