How to Install an HVAC Pressure Switch on 2008 Jeep Wrangler?

The Refrigerant Pressure Sensor / Switch should only be installed with the specified O-ring made out of R-134a material and the A/C compressor requires proper refrigerant oil. Before fitting it, lubricate a new rubber O-ring seal (4) with clean oil and put it over the discharge line fitting (3). Following this, remove the HVAC pressure switch label (2) and attach it to the A/C discharge line with the two holes. Then, join the wire harness connector (1) to the HVAC pressure switch and next return the negative battery cable (1) to its proper position.

OEM 2008 Jeep Wrangler HVAC Pressure Switch

Air Pressure Switch

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2 HVAC Pressure Switches found

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2008 Jeep Wrangler Check Valve Part Number: 5264638
$21.34 MSRP: $31.60
You Save: $10.26 (33%)
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Product Specifications
- Other Name: Valve - A/C Line; A/C High Side Charging Adapter; A/C System Valve Core; Service Valve; Suction Line Valve; Charging Valve; A/C Line Valve Core; Liquid Line Assembly
- Replaces: 68284033AA
- Item Weight: 0.40 Pounds
- Item Dimensions: 0.8 x 0.1 x 0.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 5264638
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
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Fits the following 2008 Jeep Wrangler Submodels:
- 70th Anniversary, Rubicon, Sahara, Sport, Unlimited 70th Anniversary, Unlimited Rubicon, Unlimited Sahara, Unlimited Sport, Unlimited X, X | 6 Cyl 3.6 L GAS, 6 Cyl 3.8 L GAS
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2008 Jeep Wrangler 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 2008 Jeep Wrangler Submodels:
- 70th Anniversary, Rubicon, Sahara, Sport, Unlimited 70th Anniversary, Unlimited Rubicon, Unlimited Sahara, Unlimited Sport, Unlimited X, X | 6 Cyl 3.8 L GAS

2008 Jeep Wrangler HVAC Pressure Switch Parts and Q&A

Q: How to Install an HVAC Pressure Switch on 2008 Jeep Wrangler?
A: The Refrigerant Pressure Sensor / Switch should only be installed with the specified O-ring made out of R-134a material and the A/C compressor requires proper refrigerant oil. Before fitting it, lubricate a new rubber O-ring seal (4) with clean oil and put it over the discharge line fitting (3). Following this, remove the HVAC pressure switch label (2) and attach it to the A/C discharge line with the two holes. Then, join the wire harness connector (1) to the HVAC pressure switch and next return the negative battery cable (1) to its proper position.