Four Seasons Engine Cooling Fan Temperature Switch 37459
Four Seasons Engine Cooling Fan Temperature Switch 37459 - view 2
Four Seasons Engine Cooling Fan Temperature Switch 37459 - view 3
Four Seasons Engine Cooling Fan Temperature Switch 37459
Four Seasons Engine Cooling Fan Temperature Switch 37459 - view 2
Four Seasons Engine Cooling Fan Temperature Switch 37459 - view 3

A/C System Switch for 1993-1998 Toyota Supra & More - Four Seasons 37459

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$110.99
MPN: 37459
Item Package Quantity: 1
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Four Seasons Engine Cooling Fan Temperature Switch P/N:37459
Four Seasons Engine Cooling Fan Temperature Switch P/N:37459
$110.99

Keep your electric cooling fan cycling on schedule with the Four Seasons Engine Cooling Fan Temperature Switch 37459, a radiator-mounted temperature switch that installs as a direct-fit replacement for the 1993-1997 Lexus GS300 (All) and the 1993-1998 Toyota Supra (All). This switch monitors coolant temperature and opens or closes the fan circuit accordingly, signaling the electric cooling fan to run when the coolant reaches temperature. If a failed switch is the cause of a fan that won't turn on or won't shut off, this replaces it.

  • Brass construction for accurate temperature sensing.
  • Zinc-coated terminal to resist corrosion.
  • Includes gaskets, o-rings, or seals needed to properly replace the product.
  • Calibrated switch points: turns on at 206 and off at 197.

Specs: M16-1.50 fitting thread size, oval male connector, 2 terminals, temperature type. Meets or exceeds OEM specifications. One switch is used per listed application.

Signs this switch may need replacing: a cooling fan that won't engage, runs constantly, or engine overheating traced to the fan circuit. Diagnose the cause before replacing.

Interchange: A03859 · SW1433

This part cross-references / interchanges with the following part numbers:

37459, A03859, SW1433

Frequently Asked Questions

What does this temperature switch do?

It monitors coolant temperature and opens or closes the electric cooling fan circuit, signaling the fan to run once the coolant reaches temperature.

What vehicles does the 37459 fit?

It fits the 1993-1997 Lexus GS300 (All) and the 1993-1998 Toyota Supra (All). Check the Buyer's Guide tab to confirm fitment for your vehicle.

At what temperatures does it switch?

The switch turns on at 206 and off at 197. It uses brass construction for accurate temperature sensing.

What are the connector and thread specs?

It has an M16-1.50 fitting thread size, an oval male connector, 2 terminals, and a zinc-coated terminal to resist corrosion.

Does it include seals for installation?

Yes, it contains the gaskets, o-rings, or seals needed to properly replace the product. It meets or exceeds OEM specifications.

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