HomeBelts and Cooling > Cooling Fan, Clutch and MotorFour Seasons 37506 Engine Cooling Fan Controller
Part #: 37506

Four Seasons 37506 Engine Cooling Fan Controller

Rad Fan Controller
⚙️ 22 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Rad Fan Controller
🚗Fitment: Ford and Mercury, Festiva, Mustang, Thunderbird, Capri, Marquis, and Zephyr
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Four Seasons Rad Fan Controller 37506

The Four Seasons Rad Fan Controller 37506 is designed to regulate the radiator fan operation in select Ford and Mercury vehicles. Engineered to meet or exceed OEM specifications, this engine cooling fan controller ensures reliable performance for models like the Ford Mustang and Mercury Marquis.

  • Compatible with Ford Capri, Festiva, Mustang, Thunderbird, and Mercury Marquis, Zephyr
  • Rated for 12 volts with a 30-amp amperage capacity
  • Features 8 male blade terminals for secure electrical connections
  • Black cover color for corrosion resistance and durability
  • Includes relays without a mounting bracket for flexible installation

Four Seasons Rad Fan Controller Product Line

The Rad Fan Controller line by Four Seasons focuses on radiator fan controllers designed to maintain optimal engine temperature by managing fan speed and operation. This product line emphasizes compatibility with specific vehicle makes and models, providing reliable relays and electrical components that meet or exceed original equipment manufacturer standards.

Detailed Product Description

The Four Seasons Rad Fan Controller 37506 is an engine cooling fan controller specifically designed for radiator fan systems. It operates at 12 volts and supports up to 30 amps, making it suitable for controlling the radiator fan in various Ford and Mercury vehicles. The controller features eight male blade terminals, ensuring a secure and stable electrical connection. Its black cover provides protection against environmental factors, enhancing durability. This unit comes without a bracket, allowing for versatile mounting options depending on the vehicle's setup.

Common Applications and Issues Addressed

  • Regulates radiator fan operation to prevent engine overheating
  • Replaces faulty or worn-out fan controllers in Ford Mustang and Mercury Marquis models
  • Ensures proper fan relay function to maintain consistent cooling performance
  • Addresses electrical connection failures with durable blade terminals
  • Supports engine cooling system reliability in Ford Capri and Mercury Zephyr vehicles

Installation Notes and Tips

  • Verify compatibility with your specific Ford or Mercury model before installation
  • Ensure all eight male blade terminals are properly connected for optimal performance
  • Since this unit does not include a mounting bracket, prepare appropriate mounting hardware as needed
  • Disconnect the battery before installation to avoid electrical shorts
  • Consult vehicle service manual for detailed wiring and installation procedures

Quality Assurance and Warranty

The Four Seasons Rad Fan Controller 37506 meets or exceeds OEM standards, ensuring dependable operation within the engine cooling system. Manufactured with quality materials and tested for durability, this controller supports consistent radiator fan performance. Warranty details should be confirmed with the product documentation or manufacturer.

BrandFour Seasons
Part Number37506
PositionRad Fan Controller
Amperage Rating30
Bracket?w/o Bracket
Cover ColorBlack
DescriptionRelays
Meets / Exceeds OEM?Yes
StyleRadiator Fan Controller
Terminal GenderMale
Terminal Quantity8
Terminal TypeBlade
TypeRadiator Fan Controller
Voltage12

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1993FordFestivaN/AController Relay; Rad Fan Controller
1992FordFestivaN/AController Relay; Rad Fan Controller
1991FordFestivaN/AController Relay; Rad Fan Controller
1990FordFestivaN/AController Relay; Rad Fan Controller
1990FordMustang2.3LL4N/AController Relay; Rad Fan Controller
1989FordFestivaN/AController Relay; Rad Fan Controller
1989FordMustang2.3LL4N/AController Relay; Rad Fan Controller
1988FordFestivaN/AController Relay; Rad Fan Controller
1988FordMustang2.3LL4N/AController Relay; Rad Fan Controller
1987FordMustang2.3LL4N/AController Relay; Rad Fan Controller
1986FordMustang2.3LL4N/AController Relay; Rad Fan Controller
1986FordThunderbird2.3LL4N/AController Relay; Rad Fan Controller
1986MercuryCapri2.3LL4N/AController Relay; Rad Fan Controller
1985FordThunderbird2.3LL4N/AController Relay; Rad Fan Controller
1985MercuryCapri3.8LV6N/AController Relay; Rad Fan Controller
1984FordMustang2.3LL4N/AController Relay; Federal Emissions; w/ AC; Rad Fan Controller
1984FordThunderbird2.3LL4N/AController Relay; Rad Fan Controller
1984MercuryMarquis2.3LL4N/AController Relay; w/ AC; Rad Fan Controller
1983FordThunderbird2.3LL4N/AController Relay; Rad Fan Controller
1983MercuryMarquis2.3LL4N/AController Relay; w/ AC; Rad Fan Controller
1983MercuryZephyr3.3LL6N/AController Relay; w/ AC; Rad Fan Controller
1982MercuryZephyr3.3LL6N/AController Relay; w/ 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:

11137506143021550717171145919144476191897451921420416207707244259287137506421054752601953E7ZZ8B658BHS259MT1381RR10RR14RR18

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