Four Seasons
Relay

Four Seasons 36028 A/C Compressor Cut-Out Relay

Brand Four Seasons 36028
Amperage Rating 30
Bracket? w/o Bracket
Color Black
Connector Gender female
Connector Shape Rectangular
Description Relays
Meets / Exceeds OEM? Yes
Skirt? Yes
Style Standard Relay
Terminal Gender Male
Terminal Quantity 4
Terminal Type Blade
Type Standard
Voltage 12
Product line Relay
Fits Isuzu, Geo, and GMC · 51 vehicles

OE direct replacement. Meets OEM requirements for dependable relay performance.

Standard relay. 12-volt, 30-amp design with blade terminals.

Rectangular connector. Female connector with four terminals for a secure fit.

Cross-references Dorman - HELP 47028, FEL-PRO 36028 and Four Seasons 19320 for the same application. See all 16.

$41.03Free shipping
In stock · usually ships same day before 1pm CST
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Four Seasons 36028 A/C Compressor Cut-Off Relay

The Four Seasons Relay 36028 is a standard 12-volt A/C compressor cut-off relay built for HVAC electrical control in select Isuzu, Geo, and related applications. With a 4-blade terminal layout, 30-amp rating, and female rectangular connector, it supports reliable switching in air-conditioned vehicles that need consistent compressor control.

Key Features

  • 12-volt standard relay for HVAC circuit control
  • 30-amp amperage rating for compressor cut-off applications
  • 4 blade terminals with female rectangular connector
  • Black housing with skirted standard relay design
  • Meets or exceeds OEM requirements
  • Four Seasons Relay line replacement part number 36028

Product Details

Four Seasons Relay 36028 is an A/C compressor cut-off relay used in HVAC systems where the compressor circuit must be switched on and off through an electrical relay. The standard relay construction, male blade terminals, and 4-terminal configuration support direct replacement in vehicles equipped with air conditioning. This part cross-references Dorman - HELP 47028 for the same application. Four Seasons 36028 is also referenced under interchange number 19320.

Compatible With select 1990-2002 Isuzu Trooper, 1990-1993 Geo Storm, 1990-1992 Isuzu Impulse, and 1991-1993 Isuzu Stylus applications. It also appears in vehicles where the A/C compressor cut-off relay is identified as an engine cooling fan motor relay in the fitment notes.

Common Issues This Relay May Address

  • A/C compressor not engaging
  • Intermittent compressor cycling
  • HVAC electrical relay failure
  • Cooling system relay control concerns noted in fitment
  • Loss of compressor cut-off function in air-conditioned vehicles

Installation Notes and Tips

Verify the relay connector style, terminal count, and amperage rating before installation. Confirm the vehicle uses a 12-volt standard relay with a rectangular female connector and blade terminals. For fitment, use the exact application notes for your Isuzu Trooper, Geo Storm, Isuzu Stylus, or Isuzu Impulse, since some listings specify air conditioning-equipped vehicles only.

Quality Assurance

This Four Seasons relay meets or exceeds OEM requirements and is built as a standard replacement for HVAC relay service. Four Seasons 36028 is engineered for direct-fit electrical replacement in the listed applications.

This part fits 51 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2002IsuzuTrooperN/ARelay
2001IsuzuTrooperN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
2000IsuzuTrooperN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1999IsuzuTrooperN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1998IsuzuTrooperN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1997IsuzuTrooperN/ARelay
1997IsuzuTrooperN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1996IsuzuTrooperN/ARelay
1996IsuzuTrooperN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1995IsuzuTrooperN/ARelay
1995IsuzuTrooperN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1994IsuzuTrooperN/ARelay
1994IsuzuTrooperN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1993GeoStormN/ARelay
1993GeoStormN/ACompatible with vehicles equipped with air conditioning.; Relay
1993GeoStormN/AFits vehicles with air conditioning systems.; Relay
1993IsuzuStylusN/ARelay
1993IsuzuStylusN/AA/C Cut-Out Relay; Relay
1993IsuzuStylusN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1993IsuzuStylusN/AFits vehicles with air conditioning systems.; Relay
1993IsuzuTrooperN/ARelay
1993IsuzuTrooperN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1992GeoStormN/ARelay
1992GeoStormN/ACompatible with vehicles equipped with air conditioning.; Relay
1992GeoStormN/AFits vehicles with air conditioning systems.; Relay
1992IsuzuImpulseN/ARelay
1992IsuzuImpulseN/AA/C Cut-Out Relay; Relay
1992IsuzuImpulseN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1992IsuzuImpulseN/AFits vehicles with air conditioning systems.; Relay
1992IsuzuStylusN/ARelay
1992IsuzuStylusN/AA/C Cut-Out Relay; Relay
1992IsuzuStylusN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1992IsuzuStylusN/AFits vehicles with air conditioning systems.; Relay
1992IsuzuTrooperN/ARelay
1992IsuzuTrooperN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1992IsuzuTrooperN/AFits vehicles with air conditioning systems.; Relay
1991GeoStormN/ARelay
1991GeoStormN/ACompatible with vehicles equipped with air conditioning.; Relay
1991GeoStormN/AFits vehicles with air conditioning systems.; Relay
1991IsuzuImpulseN/ARelay
1991IsuzuImpulseN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1991IsuzuImpulseN/AFits vehicles with air conditioning systems.; Relay
1991IsuzuStylusN/ARelay
1991IsuzuStylusN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1991IsuzuStylusN/AFits vehicles with air conditioning systems.; Relay
1990GeoStormN/ARelay
1990GeoStormN/ACompatible with vehicles equipped with air conditioning.; Relay
1990GeoStormN/AFits vehicles with air conditioning systems.; Relay
1990IsuzuImpulseN/ARelay
1990IsuzuImpulseN/AA/C Compressor Cut-Out Relay also known as Engine Cooling Fan Motor Relay.; Relay
1990IsuzuImpulseN/AFits vehicles with air conditioning systems.; Relay
Directly replaces or cross-references 16 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - HELP — 47028FEL-PRO — 36028Four Seasons — 1932040882815509781113602819189459970486659709391089434384508943438451897048665089709391008970939101A78828RE4906