HomeHVAC > RelaysFour Seasons 35988 A/C Compressor Cut-Out Relay
Part #: 35988

Four Seasons 35988 A/C Compressor Cut-Out Relay

Rad Fan Controller, N/A
⚙️ 126 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Rad Fan Controller, N/A
🚗Fitment: Ford, Mercury, and Lincoln, Escort, Tracer, Aerostar, Cougar, Tempo, Topaz, Mark VIII, Thunderbird, Mark VII, Country Squire, LTD Crown Victoria, Colony Park, Grand Marquis, Mustang, Ranger, Bronco II, EXP, Lynx, and LN7
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Reliable Radiator Fan Controller for Ford and Jeep Vehicles

The Four Seasons Rad Fan Controller 35988 is designed to regulate the radiator fan operation in select Ford, Jeep, Lincoln, and Mercury models. This A/C compressor cut-off relay ensures proper cooling system performance and helps maintain optimal engine temperature.

  • Blade terminal type with 5 male terminals for secure electrical connections
  • 30-amp amperage rating suitable for radiator fan control circuits
  • Operates on 12-volt electrical systems common in automotive applications
  • Includes a protective skirt and is designed without a mounting bracket
  • Meets or exceeds OEM specifications for reliable fit and function

About the Four Seasons Rad Fan Controller Product Line

The Rad Fan Controller line by Four Seasons focuses on radiator fan control relays that manage fan operation to optimize engine cooling and A/C compressor function. Part number 35988 is part of this line, engineered to provide consistent performance and durability in demanding automotive environments.

Product Details and Specifications

This radiator fan controller relay features a blade terminal type with five male terminals, ensuring a secure and stable electrical connection. Rated for 30 amps, it is designed to handle the electrical load of radiator fan circuits in 12-volt systems. The relay includes a protective skirt to shield internal components but does not come with a mounting bracket, allowing for flexible installation options. It is compatible with various Ford, Jeep, Lincoln, and Mercury vehicles, including models such as the Ford Explorer, Mustang, Ranger, and the Jeep Comanche.

Compatible Vehicles and Common Applications

  • Ford Explorer, Mustang, Ranger, Bronco II, Escort, Thunderbird
  • Jeep Comanche and other select Jeep models
  • Lincoln Mark VII, Mark VIII, and Grand Marquis
  • Mercury Cougar, Colony Park, Lynx, and Topaz
  • Other Ford and Mercury models like Aerostar, Tempo, LTD Crown Victoria, and Tracer

Issues Addressed by the Four Seasons 35988 Relay

  • Intermittent or non-functioning radiator fan operation
  • Overheating due to fan not engaging at proper temperatures
  • Faulty A/C compressor cut-off causing compressor or fan issues
  • Electrical connection failures from worn or damaged relay terminals
  • Inconsistent cooling system performance affecting engine efficiency

Installation Notes and Tips

When installing the Four Seasons Rad Fan Controller 35988, ensure the vehicle’s electrical system is off to prevent shorts. Verify the relay terminals match the vehicle’s wiring harness connectors, noting the blade terminal type and male terminal gender. Since this relay does not include a mounting bracket, secure it properly in the relay housing or bracket area to avoid vibration damage. Confirm compatibility with your specific Ford, Jeep, Lincoln, or Mercury model before installation.

Quality Assurance and Warranty

The Four Seasons Rad Fan Controller 35988 meets or exceeds OEM standards, providing reliable performance and durability. This relay is manufactured to strict quality controls to ensure consistent operation in automotive cooling systems. Please refer to Four Seasons’ warranty policy for coverage details on this part.

BrandFour Seasons
Part Number35988
PositionRad Fan Controller, N/A
Amperage Rating30
Bracket?w/o Bracket
DescriptionRelays
Meets / Exceeds OEM?Yes
Skirt?Yes
StyleRadiator Fan Controller
Terminal GenderMale
Terminal Quantity5
Terminal TypeBlade
TypeRadiator Fan Controller
Voltage12

This part fits 126 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
1996FordEscortN/ACompressor Clutch Cut-Out Relay; Throttle Cut Off; Rad Fan Controller
1996MercuryTracerN/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Rad Fan Controller
1995FordEscortN/ACompressor Clutch Cut-Out Relay; Throttle Cut Off; Rad Fan Controller
1995MercuryTracerN/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Rad Fan Controller
1994FordAerostar3.0LV6N/AAuxiliary; Rad Fan Controller
1994FordCougarN/ARad Fan Controller
1994FordCougarN/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Relay
1994FordEscortN/ACompressor Clutch Cut-Out Relay; Throttle Cut Off; Rad Fan Controller
1994FordTempoN/AFits vehicles with air conditioning systems.; Relay
1994MercuryCougarN/ARad Fan Controller
1994MercuryCougarN/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Relay
1994MercuryTopaz2.3LL4N/AFits vehicles with air conditioning systems.; Relay
1994MercuryTracerN/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Rad Fan Controller
1993FordAerostar3.0LV6N/AAuxiliary; Rad Fan Controller
1993FordCougarN/ARad Fan Controller
1993FordEscortN/ACompressor Clutch Cut-Out Relay; Throttle Cut Off; Rad Fan Controller
1993FordTempoN/AFits vehicles with air conditioning systems.; Relay
1993LincolnMark VIIIN/ARelay; Rad Fan Controller
1993MercuryCougarN/ARad Fan Controller
1993MercuryTopazN/AFits vehicles with air conditioning systems.; Relay
1993MercuryTracerN/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Rad Fan Controller
1992FordCougarN/ARad Fan Controller
1992FordEscortN/ACompressor Clutch Cut-Out Relay; Throttle Cut Off; Rad Fan Controller
1992FordExplorerN/ANew Part
1992FordRangerN/ANew Part
1992FordTempoN/AFits vehicles with air conditioning systems.; Relay
1992FordThunderbird5.0LV8N/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Rad Fan Controller
1992FordThunderbird3.8LV6N/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Rad Fan Controller
1992JeepComancheN/ANew Part
1992LincolnMark VIIN/ARelay; Rad Fan Controller
1992MercuryCougarN/ARad Fan Controller
1992MercuryTopazN/AFits vehicles with air conditioning systems.; Relay
1992MercuryTracerN/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Rad Fan Controller
1991FordAerostarN/AA/C Compressor Relay; Throttle Cut Off; Rad Fan Controller
1991FordCougarN/ARad Fan Controller
1991FordEscortN/ACompressor Clutch Cut-Out Relay; Throttle Cut Off; Rad Fan Controller
1991FordExplorerN/ANew Part
1991FordLTD Crown Victoria5.0LV8N/ARad Fan Controller
1991FordRangerN/ANew Part
1991FordTempoN/AFits vehicles with air conditioning systems.; Relay
1991FordThunderbird5.0LV8N/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Rad Fan Controller
1991FordThunderbird3.8LV6N/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Rad Fan Controller
1991JeepComancheN/ANew Part
1991LincolnMark VIIN/ARad Fan Controller
1991MercuryColony ParkN/ARectangular Relay; Rad Fan Controller
1991MercuryCougarN/ARad Fan Controller
1991MercuryGrand MarquisN/ARectangular Relay; Rad Fan Controller
1991MercuryTopazN/AFits vehicles with air conditioning systems.; Relay
1991MercuryTracerN/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Rad Fan Controller
1990FordAerostarN/AA/C Compressor Relay; Throttle Cut Off; Rad Fan Controller
1990FordBronco IIN/ANew Part
1990FordCougarN/ARad Fan Controller
1990FordEscortN/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1990FordLTD Crown Victoria5.0LV8N/ARad Fan Controller
1990FordMustangN/ARad Fan Controller
1990FordMustang5.0LV8N/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Relay
1990FordRangerN/ANew Part
1990FordTempoN/AFits vehicles with air conditioning systems.; Relay
1990FordThunderbird3.8LV6N/AA/C Compressor Cut-Out Relay for Engine Cooling Fan Motor Relay.; Rad Fan Controller
1990FordThunderbird3.8LV6N/AFits vehicles with air conditioning systems.; Rad Fan Controller
1990LincolnMark VIIN/ANew Part
1990MercuryColony ParkN/ARectangular Relay; Rad Fan Controller
1990MercuryColony ParkN/ARad Fan Controller
1990MercuryCougarN/ARad Fan Controller
1990MercuryGrand MarquisN/ARectangular Relay; Rad Fan Controller
1990MercuryGrand MarquisN/ARad Fan Controller
1990MercuryTopazN/AFits vehicles with air conditioning systems.; Relay
1989FordAerostarN/AA/C Compressor Relay; Throttle Cut Off; Rad Fan Controller
1989FordBronco IIN/ANew Part
1989FordEscortN/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1989FordRangerN/AFits vehicles with air conditioning systems.; Rad Fan Controller
1989FordTempoN/AFits vehicles with air conditioning systems.; Relay
1989FordThunderbird3.8LV6N/AFits vehicles with air conditioning systems.; Rad Fan Controller
1989MercuryCougarN/ARad Fan Controller
1989MercuryTopazN/AFits vehicles with air conditioning systems.; Relay
1988FordAerostarN/AA/C Compressor Relay; Throttle Cut Off; Rad Fan Controller
1988FordBronco IIN/AA/C Compressor Relay; Throttle Cut Off; Rad Fan Controller
1988FordCougarN/ARad Fan Controller
1988FordEscortN/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1988FordRangerN/AFits vehicles with air conditioning systems.; Rad Fan Controller
1988FordTempoN/AFits vehicles with air conditioning systems.; Relay
1988FordThunderbirdN/ARad Fan Controller
1988MercuryCougarN/ARad Fan Controller
1988MercuryTopazN/AFits vehicles with air conditioning systems.; Relay
1987FordAerostarN/AA/C Compressor Relay; Throttle Cut Off; Rad Fan Controller
1987FordBronco IIN/AA/C Compressor Relay; Throttle Cut Off; Rad Fan Controller
1987FordCougarN/ARad Fan Controller
1987FordEscortN/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1987FordRangerN/AFits vehicles with air conditioning systems.; Rad Fan Controller
1987FordThunderbirdN/ARad Fan Controller
1987MercuryCougarN/ARad Fan Controller
1987MercuryLynxN/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1987MercuryTopazN/AFits vehicles with air conditioning systems.; Rad Fan Controller
1986FordAerostarN/AA/C Compressor Relay; Throttle Cut Off; Rad Fan Controller
1986FordBronco IIN/AA/C Compressor Relay; Throttle Cut Off; Rad Fan Controller
1986FordCougar3.8LV6N/ANew Part
1986FordEscortN/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1986FordRangerN/AFits vehicles with air conditioning systems.; Rad Fan Controller
1986FordThunderbirdN/ARad Fan Controller
1986MercuryCougar2.3LL4N/ANew Part
1986MercuryLynxN/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1986MercuryTopaz2.3LL4N/AFits vehicles with air conditioning systems.; Rad Fan Controller
1985FordBronco IIN/AA/C Compressor Relay; Throttle Cut Off; Rad Fan Controller
1985FordEscort1.6LL4N/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1985FordEscort1.9LL4N/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1985FordRangerN/ARad Fan Controller
1985FordThunderbirdN/ARad Fan Controller
1985MercuryLynxN/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1985MercuryTopazN/AFits vehicles with air conditioning systems.; Rad Fan Controller
1984FordEscort1.6LL4N/AFits vehicles with air conditioning systems.; Rad Fan Controller
1984MercuryLynxAutomatic2.0LL4N/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1984MercuryLynxManual2.0LL4N/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1984MercuryLynxAutomatic1.6LL4N/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1984MercuryLynxManual1.6LL4N/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1984MercuryTopaz2.0LL4N/AFits vehicles with air conditioning systems.; Rad Fan Controller
1984MercuryTopaz2.3LL4N/AFits vehicles with air conditioning systems.; Rad Fan Controller
1983FordEscortN/AFits vehicles with air conditioning systems.; Rad Fan Controller
1983FordMustang5.0LV8N/ANew Part
1983MercuryLN71.6LL4N/AFits vehicles with air conditioning systems.; Rad Fan Controller
1983MercuryLynxN/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1982FordEscortN/AFits vehicles with air conditioning systems.; Rad Fan Controller
1982FordMustang5.0LV8N/ANew Part
1982MercuryLN7N/AFits vehicles with air conditioning systems.; Rad Fan Controller
1982MercuryLynxN/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller
1981FordEscortN/AFits vehicles with air conditioning systems.; Rad Fan Controller
1981MercuryLynxN/ARadiator Fan Motor Relay; w/o AC; Rad Fan Controller

* 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:

014782960147843011135988V1113601811136094155005215592615599215649915810271609016134171165719189443191894681984019911208794208818244302244318257333932359883601836094470134701847236016856016876894889996178899961988999690AC8206AC8209DY438DY468DY555DY864E1UZ13A435AE1VZ9345AE1VZ9345BE3AZ13A025AE3AZ13A025BE3AZ9C392AE3FZ9345BE3FZ9345DE3FZ9345EE3SZ11433AE3TZ13A025AE3TZ9345AE3UZ13A025AAE43Z11433AE4LY11433AE4TZ9C392AE4TZ9C392BE4ZZ9C392AE53Z11433AE5LY19A367AE63Z13A025AE6DZ11433AE6FZ11433AE6LZ9345AE6SZ11433AE6TZ13A025AE6VY11433AE73Z82658AE7LY9C392AE7TZ9C392BE807520E83Z11433AF19Z9345AF8PZ14N135AAF8PZ14N135DAHS302MT0964MT1261RE1006RE4472RE4473RE4888

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