Four Seasons Engine Cooling Fan Temperature Switch 37457
Four Seasons Engine Cooling Fan Temperature Switch 37457

Four Seasons Engine Cooling Fan Temperature Switch P/N:37457

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$94.99
MPN: 37457
Item Package Quantity: 1
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Four Seasons Engine Cooling Fan Temperature Switch P/N:37457
Four Seasons Engine Cooling Fan Temperature Switch P/N:37457
$94.99

Get the radiator fan cycling on again with the Four Seasons Engine Cooling Fan Temperature Switch (MPN 37457) — the Stylus switch that senses coolant temperature at the radiator and signals the engine cooling fan to turn on and off. It installs as a direct-fit replacement for the 1991 Isuzu Stylus (see the Buyer's Guide tab for engine-level applications).

This switch threads into the radiator and monitors coolant temperature, closing the fan circuit as the coolant heats up and opening it as it cools, so the cooling fan runs when the engine needs it. If a failed temperature switch is the cause of a fan that won't cycle or an engine that runs hot, this replaces it.

  • Brass construction for accurate temperature sensing.
  • Zinc-coated terminal to resist corrosion.
  • Includes the gaskets, o-rings, or seals needed to properly replace the product.
  • Vehicle-specific application engineered and tested by Four Seasons for reliable operation.

Backed by over 50 years of Four Seasons mobile A/C and cooling experience.

Interchange: 2132601 · 5S1538 · 89054497 · A03857 · SU4284

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

2132601, 5S1538, 37457, 89054497, A03857, SU4284

Frequently Asked Questions

What does the Stylus switch do?

It senses coolant temperature at the radiator and closes or opens the engine cooling fan circuit, switching the fan on as the coolant heats up and off as it cools.

Does this switch fit my vehicle?

It is a direct-fit replacement for the 1991 Isuzu Stylus. Check the Buyer's Guide tab to confirm the engine-level application for your vehicle.

What is this temperature switch made of?

It uses brass construction for accurate temperature sensing and a zinc-coated terminal to resist corrosion.

Does it come with seals?

Yes. It contains the gaskets, o-rings, or seals needed to properly replace the product.

Could this switch be why my cooling fan won't turn on?

A fan that won't cycle or an engine that runs hot can point to a failed temperature switch. If the switch is the cause, this replaces it; diagnose the circuit first, as other parts can cause the same symptoms.

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