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Four Seasons 35757 HVAC Cut-Off SwitchOE Quality 60-Day Returns
Part #: 35757

Four Seasons 35757 HVAC Cut-Off Switch

Pressure Switch
124 vehicles fit this part
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Pressure Switch
Fitment: Audi, Buick, Chevrolet, Oldsmobile, Pontiac, GMC, and Cadillac, 5000, Skylark, Nova, 98, Cutlass Salon, Cutlass Supreme, Delta 88, Omega, Starfire, Toronado, Firebird, Phoenix, Riviera, C10, C10 Suburban, C20, C20 Suburban, C30, Chevette, K10, K10 Suburban, K20, K20 Suburban, K30, K5 Blazer, Monza, C15, C15 Suburban, C25, C25 Suburban, C35, Jimmy, K15, K15 Suburban, K25, K25 Suburban, K35, DeVille, Eldorado, Fleetwood, Seville, Caprice, El Camino, Impala, Malibu, Monte Carlo, Vega, Cutlass, Astre, Sunbird, Grand Prix, LeMans, Blazer, C10 Pickup, C20 Pickup, C30 Pickup, K10 Pickup, K20 Pickup, K30 Pickup, C15/C1500 Pickup, C15/C1500 Suburban, C25/C2500 Pickup, C25/C2500 Suburban, C35/C3500 Pickup, K15/K1500 Pickup, K15/K1500 Suburban, K25/K2500 Pickup, K25/K2500 Suburban, and K35/K3500 Pickup
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Not what you need? See all HVAC Cut-Off Switch options

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.

BrandFour Seasons
Part Number35757
PositionPressure Switch
Comp Open/ClosedOpen
Connector ShapeOpen
DescriptionSwitch-Pressure /System Mount
Fitting Thread Size3/8 in. x 24
Harness Connector[37219] / Harness Connector
Item Included A Desc24606
Item Included A Qty.1
MaterialSteel
Meets / Exceeds OEM?YES
Mnt Sys LocSystem Mounted
Number of Terminals2
Operate Psi Low Off24
Operate Psi Low On25
StylePressure
TypeLow Cut-Out
Weather Pack?Yes

This part fits 124 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
1979BuickSkylarkN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1979ChevroletNovaN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1979Oldsmobile98N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1979OldsmobileCutlass3.8LV6N/Awithout Valves in Receiver (VIR) Assembly; Pressure Switch
1979OldsmobileCutlass Salon3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1979OldsmobileCutlass Supreme3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1979OldsmobileDelta 883.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1979OldsmobileOmegaN/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1979OldsmobileStarfireN/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1979OldsmobileToronadoN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1979PontiacFirebirdN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1979PontiacPhoenixN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978BuickRivieraN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1978BuickSkylarkN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1978ChevroletC10N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletC10 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletC20N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletC20 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletC30N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletChevetteN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1978ChevroletK10N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletK10 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletK20N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletK20 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletK30N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletK5 BlazerN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978ChevroletMonzaN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1978ChevroletNovaN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1978GMCJimmyN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978Oldsmobile98N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1978OldsmobileCutlass3.8LV6N/Awithout Valves in Receiver (VIR) Assembly; Pressure Switch
1978OldsmobileCutlass Salon3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1978OldsmobileCutlass Supreme3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1978OldsmobileDelta 883.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1978OldsmobileOmegaN/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1978OldsmobileStarfireN/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1978OldsmobileToronadoN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978PontiacFirebirdN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1978PontiacPhoenixN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977BuickRivieraN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977BuickSkylarkN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977CadillacDeVilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977CadillacEldoradoN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977CadillacFleetwood75N/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977CadillacFleetwood75 FormalN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977CadillacFleetwoodFormalN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977CadillacSevilleN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletC10N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletC10 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletC20N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletC20 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletC30N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletCapriceN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletChevetteN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletEl CaminoN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletImpalaN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletK10N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletK10 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletK20N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletK20 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletK30N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletK5 BlazerN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977ChevroletMalibuN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletMonte CarloN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletMonzaN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977ChevroletNovaN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1977GMCJimmyN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977Oldsmobile98N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1977OldsmobileCutlass3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1977OldsmobileCutlass Supreme3.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1977OldsmobileDelta 883.8LV6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1977OldsmobileOmegaN/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1977OldsmobileStarfireN/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1977OldsmobileToronadoN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977PontiacFirebirdN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1977PontiacSunbirdN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976BuickSkylarkN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1976ChevroletC10N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletC10 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletC20N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletC20 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletC30N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletChevetteN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1976ChevroletK10N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletK10 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletK20N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletK20 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletK5 BlazerN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976ChevroletMonzaN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1976ChevroletNovaN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1976GMCJimmyN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976OldsmobileCutlass4.1LL6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1976OldsmobileCutlass Supreme4.1LL6N/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1976OldsmobileOmegaN/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1976OldsmobileStarfireN/ALow Pressure A/C System Mounted; Liquid Line; Excl. VIR (Valve In Reciever); Pressure Switch
1976OldsmobileToronadoN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976PontiacFirebirdN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976PontiacGrand PrixN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976PontiacLeMansN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1976PontiacSunbirdN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletC10N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletC10 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletC20N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletC20 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletC30N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletK10N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletK10 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletK20N/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletK20 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletK5 BlazerN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1975ChevroletMonzaN/AMount the Low Pressure A/C Cut-Off Switch on the HVAC system.; Pressure Switch
1975GMCJimmyN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1974ChevroletBlazerN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1974ChevroletC10 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1974ChevroletC20 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1974ChevroletK10 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1974ChevroletK20 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1974GMCJimmyN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1973ChevroletBlazerN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1973ChevroletC10 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1973ChevroletC20 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1973ChevroletK10 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1973ChevroletK20 SuburbanN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; Pressure Switch
1973GMCJimmyN/ALow Pressure A/C System Mounted Liquid Line - HVAC Cut-Off Switch; 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:

01478132111357571130171183563118356341350015214715510681711253191893282070702111742121742202852270229300013397333984835757370117431959483A503662626466272089701762A7245AC8302AM80812E807346HS174MT0499SW2147SW2147C

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

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