Four Seasons 35757 HVAC Cut-Off Switch
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Four Seasons
 Pressure Switch

Four Seasons 35757 HVAC Cut-Off Switch

Brand Four Seasons 35757
Comp Open/Closed Open
Connector Shape Open
Description Switch-Pressure /System Mount
Fitting Thread Size 3/8 in. x 24
Harness Connector [37219] / Harness Connector
Item Included A Desc 24606
Item Included A Qty. 1
Material Steel
Meets / Exceeds OEM? YES
Mnt Sys Loc System Mounted
Number of Terminals 2
Operate Psi Low Off 24
Operate Psi Low On 25
Style Pressure
Type Low Cut-Out
Weather Pack? Yes
Product line Pressure Switch
Fits Audi, Buick, Chevrolet, Oldsmobile, Pontiac, GMC, and Cadillac · 124 vehicles

OE direct replacement. Meets or exceeds OEM requirements for dependable system control.

Steel construction. Built for durable pressure-switch performance.

Low cut-out design. Opens at 24 psi and closes at 25 psi.

Cross-references Bosch 13500, DENSO Auto Parts 5036 and Febi-Bilstein 33973 for the same application. See all 33.

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Four Seasons Pressure Switch 35757 Overview

The Four Seasons 35757 is a system-mounted HVAC low cut-out pressure switch for vehicles that use a 3/8 in. x 24 threaded connection and a 2-terminal harness setup. It monitors refrigerant pressure and opens or closes the circuit at the specified low-pressure points to help protect the A/C system during operation.

Built with a steel body, open connector shape, and Weather Pack protection, this Four Seasons Pressure Switch is made to meet or exceed OEM requirements. It is a direct-fit style pressure switch for low cut-out applications on select Buick, Chevrolet, Oldsmobile, Pontiac, Cadillac, and GMC models.

Key Features

  • Four Seasons Pressure Switch, part number 35757
  • HVAC cut-off switch for low-pressure A/C system control
  • System-mounted design with 3/8 in. x 24 fitting thread size
  • 2-terminal harness connector with open connector shape
  • Steel construction for durable service
  • Operate points: 24 psi low off, 25 psi low on
  • Meets or exceeds OEM specifications
  • Weather Pack sealed connection

Detailed Description

The Four Seasons Pressure Switch 35757 is used in low-pressure HVAC circuits where refrigerant pressure must be monitored at the liquid line or system mount location. This low cut-out switch helps control compressor operation by responding to pressure changes at the specified open and closed points. It is a practical replacement for classic GM applications, including 1973-1979 Chevrolet C10, 1976-1979 Buick Skylark, and 1976-1979 Pontiac Firebird models.

This part cross-references Gates 22702 and UAC SW2147C for the same application. The Four Seasons Pressure Switch line focuses on accurate pressure control components for automotive air conditioning systems, and the 35757 follows that approach with OEM-level fit and function.

What It Helps Address

  • A/C compressor cycling caused by low refrigerant pressure
  • Compressor protection during low-charge conditions
  • Intermittent HVAC cut-off switch operation
  • Faulty pressure signal at the system-mounted switch location
  • Loss of cooling performance tied to pressure switch failure

Installation Notes and Fitment

Compatible With select 1973-1979 vehicles using a low-pressure, system-mounted HVAC cut-off switch. Fits 1976-1979 Buick Skylark, N/A; Fits 1977-1978 Buick Riviera, N/A; Fits 1976-1979 Chevrolet Nova, N/A; Fits 1975-1978 Chevrolet C10, N/A; Fits 1973-1978 Chevrolet C10 Suburban, N/A; Fits 1975-1978 Chevrolet K10, N/A; Fits 1973-1978 GMC Jimmy, N/A; Fits 1976-1979 Oldsmobile Cutlass Supreme, N/A; Fits 1977-1979 Oldsmobile 98, N/A; Fits 1976-1979 Pontiac Firebird, N/A.

Verify the 3/8 in. x 24 thread size, 2-terminal connector, and system-mounted location before installation. Confirm the vehicle’s HVAC configuration, including exclusions noted for VIR-equipped applications where applicable.

Quality Assurance

This Four Seasons HVAC cut-off switch is manufactured to meet or exceed OEM standards for fit and function. The steel construction and Weather Pack connector support dependable service in automotive air conditioning systems.

Related reading

This part fits 124 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
1979BuickSkylark———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1979ChevroletNova———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1979Oldsmobile98———N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1979OldsmobileCutlass—3.8LV6N/Awithout Valves in Receiver (VIR) Assembly; Pressure Switch
1979OldsmobileCutlass Salon—3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1979OldsmobileCutlass Supreme—3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1979OldsmobileDelta 88—3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1979OldsmobileOmega———N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1979OldsmobileStarfire———N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1979OldsmobileToronado———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1979PontiacFirebird———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1979PontiacPhoenix———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978BuickRiviera———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1978BuickSkylark———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1978ChevroletC10———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletC10 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletC20———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletC20 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletC30———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletChevette———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1978ChevroletK10———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletK10 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletK20———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletK20 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletK30———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletK5 Blazer———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletMonza———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1978ChevroletNova———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1978GMCJimmy———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978Oldsmobile98———N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1978OldsmobileCutlass—3.8LV6N/Awithout Valves in Receiver (VIR) Assembly; Pressure Switch
1978OldsmobileCutlass Salon—3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1978OldsmobileCutlass Supreme—3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1978OldsmobileDelta 88—3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1978OldsmobileOmega———N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1978OldsmobileStarfire———N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1978OldsmobileToronado———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978PontiacFirebird———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978PontiacPhoenix———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977BuickRiviera———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977BuickSkylark———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977CadillacDeVille———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977CadillacEldorado———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977CadillacFleetwood75——N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977CadillacFleetwood75 Formal——N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977CadillacFleetwoodFormal——N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977CadillacSeville———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletC10———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletC10 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletC20———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletC20 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletC30———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletCaprice———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletChevette———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletEl Camino———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletImpala———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletK10———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletK10 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletK20———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletK20 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletK30———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletK5 Blazer———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletMalibu———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletMonte Carlo———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletMonza———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletNova———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977GMCJimmy———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977Oldsmobile98———N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1977OldsmobileCutlass—3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1977OldsmobileCutlass Supreme—3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1977OldsmobileDelta 88—3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1977OldsmobileOmega———N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1977OldsmobileStarfire———N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1977OldsmobileToronado———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977PontiacFirebird———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977PontiacSunbird———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976BuickSkylark———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1976ChevroletC10———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletC10 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletC20———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletC20 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletC30———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletChevette———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1976ChevroletK10———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletK10 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletK20———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletK20 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletK5 Blazer———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletMonza———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1976ChevroletNova———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1976GMCJimmy———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976OldsmobileCutlass—4.1LL6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1976OldsmobileCutlass Supreme—4.1LL6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1976OldsmobileOmega———N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1976OldsmobileStarfire———N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1976OldsmobileToronado———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976PontiacFirebird———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976PontiacGrand Prix———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976PontiacLeMans———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976PontiacSunbird———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletC10———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletC10 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletC20———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletC20 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletC30———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletK10———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletK10 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletK20———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletK20 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletK5 Blazer———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletMonza———N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1975GMCJimmy———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1974ChevroletBlazer———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1974ChevroletC10 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1974ChevroletC20 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1974ChevroletK10 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1974ChevroletK20 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1974GMCJimmy———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1973ChevroletBlazer———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1973ChevroletC10 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1973ChevroletC20 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1973ChevroletK10 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1973ChevroletK20 Suburban———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1973GMCJimmy———N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
Directly replaces or cross-references 33 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 13500DENSO Auto Parts — 5036Febi-Bilstein — 33973FEL-PRO — 35757Gates — 22702Global Parts Distributors LLC — 1711253Marmon Ride Control — A7245UAC — SW2147C1130171521472070702111742121742202853398483701177017621183563014781321551068293000162626466272089111357571183563419189328431959483AAC8302AM80812E807346HS174MT0499SW2147