Home› HVAC > Switches› Four Seasons 36679 HVAC Cut-Off Switch
Four Seasons 36679 HVAC Cut-Off SwitchOE Quality 60-Day Returns
Four Seasons 36679 HVAC Cut-Off Switch - view 1
Four Seasons 36679 HVAC Cut-Off Switch - view 2
Four Seasons 36679 HVAC Cut-Off Switch - view 3
Four Seasons 36679 HVAC Cut-Off Switch - view 4
Part #: 36679

Four Seasons 36679 HVAC Cut-Off Switch

Pressure Switch
⚙️ 25 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$32.34Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Pressure Switch
🚗Fitment: Cadillac and Oldsmobile, Eldorado, DeVille, Aurora, and Seville
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all HVAC Cut-Off Switch options

Overview of Four Seasons Pressure Switch 36679

The Four Seasons Pressure Switch 36679 is a system-mounted HVAC cut-off switch designed for select Cadillac and Oldsmobile models. Engineered to meet or exceed OEM specifications, this pressure switch ensures reliable operation within your vehicle's HVAC system.

  • Compatible with Cadillac Aurora, DeVille, Eldorado, and Seville models
  • Operates as a low cut-out pressure switch with open comp open/closed status
  • Features a black plastic and metal construction for durability
  • Includes a female oval connector and female fitting with M12 x 1.50 thread size
  • Equipped with two terminals for secure electrical connection
  • Pressure operation range: low off at 12 PSI and low on at 23 PSI

Detailed Product Description

This Four Seasons Pressure Switch 36679 is part of the Pressure Switch product line, which focuses on precise pressure sensing and control within automotive HVAC systems. The switch is designed to monitor system pressure and activate or deactivate components accordingly, helping maintain optimal HVAC performance. Its system-mounted design allows for straightforward integration into the vehicle's existing HVAC setup.

Constructed from a combination of plastic and metal, the switch offers durability and resistance to typical automotive environmental factors. The female oval connector and fitting ensure compatibility with factory wiring harnesses and mounting points. The M12 x 1.50 fitting thread size provides a secure and leak-free connection.

Applications and Common Issues Addressed

  • Prevents HVAC compressor damage by cutting off operation at low pressure
  • Helps maintain proper refrigerant pressure levels within the system
  • Reduces risk of system freeze-up or overheating due to pressure irregularities
  • Ensures consistent HVAC performance in Cadillac Aurora, DeVille, Eldorado, and Seville vehicles
  • Replaces faulty or worn pressure switches causing HVAC malfunctions

Installation Notes and Tips

  • Verify vehicle compatibility with Cadillac Aurora, DeVille, Eldorado, or Seville before installation
  • Ensure system is depressurized and engine is off prior to removal and installation
  • Use appropriate tools to avoid damaging the M12 x 1.50 fitting threads
  • Check electrical connections for secure fit with the female oval connector
  • Test system pressure operation after installation to confirm proper switch function

Quality Assurance and Warranty

The Four Seasons Pressure Switch 36679 meets or exceeds OEM standards, ensuring reliable performance and durability. Manufactured with quality materials and tested for consistent operation, this switch supports the longevity of your vehicle's HVAC system. Warranty details are provided by Four Seasons and typically cover defects in material and workmanship under normal use.

BrandFour Seasons
Part Number36679
PositionPressure Switch
ColorBlack
Comp Open/ClosedOpen
Connector GenderFemale
Connector ShapeOval
DescriptionSwitch-Pressure /System Mount
Fitting GenderFemale
Fitting Thread SizeM12 x 1.50
Item Included A Desc24676
Item Included A Qty.1
MaterialPlastic / Metal
Meets / Exceeds OEM?YES
Mnt Sys LocSystem Mounted
Number of Terminals2
Operate Psi Low Off12
Operate Psi Low On23
StylePressure
TypeLow Cut-Out

This part fits 25 vehicles. Search below:

YearMakeModelPositionNotes
2002CadillacEldoradoN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
2001CadillacEldoradoN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
2000CadillacDeVilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
2000CadillacEldoradoN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1999CadillacDeVilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1999CadillacEldoradoN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1999OldsmobileAuroraN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1998CadillacDeVilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1998CadillacEldoradoN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1998OldsmobileAuroraN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1997CadillacDeVilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1997CadillacEldoradoN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1997CadillacSevilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1997OldsmobileAuroraN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1996CadillacDeVilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1996CadillacEldoradoN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1996CadillacSevilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1996OldsmobileAuroraN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1995CadillacDeVilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1995CadillacEldoradoN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1995CadillacSevilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1995OldsmobileAuroraN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1994CadillacDeVilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1994CadillacEldoradoN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1994CadillacSevilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch

* 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:

1113667915287617114352078982118942560495136679497350001470186389023422A77898AC8862ACD152876HS894MT0799SW11158SW11158C

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

Related Articles