A/C System Switch for 1997-1999 BMW 318ti & More - Four Seasons 37838

$67.99

Four Seasons Engine Cooling Fan Temperature Switch 37838

Four Seasons Engine Cooling Fan Temperature Switch 37838 - view 2

Four Seasons Engine Cooling Fan Temperature Switch 37838 - view 3

Part number: 37838

UPC: 96361378384

Condition: New

Weight: 0.10 LBS

Interchange Part Number: 61318376440, 37838, 37838, 37838, 37838, A14188, TFS251, SW4248

Item Package Code: EA

Part Has Core (Y/N): N

PartType: A/C System Switch

Item Package Quantity: 1

$67.99

Current Stock: 5

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Four Seasons Engine Cooling Fan Temperature Switch P/N:37838

$67.99

Description

Keep your electric cooling fan cycling on cue with the Four Seasons Engine Cooling Fan Temperature Switch (P/N 37838). This radiator-mounted temperature switch drops in as a direct-fit replacement for the 1996-1998 BMW Z3, the 1997 BMW 318i, and the 1997-1999 BMW 318ti [All]. As the Z3 switch that threads into the radiator, it senses coolant temperature and opens or closes the fan circuit as the engine warms and cools.

Brass construction for accurate temperature sensing.
Zinc-coated terminal to resist corrosion.
3-terminal male connector with a rectangular shape and an M14 x 1.50 male fitting thread.
Switching temperatures: fan on at 176/190, fan off at 165/181, for staged fan control.
Contains gaskets, o-rings, or seals to properly replace the product.

Meets or exceeds OEM requirements. If a failed cooling fan temperature switch is the cause of a fan that won't turn on, runs constantly, or lets the engine run hot, this switch replaces the original — diagnose the root cause before replacing, as those symptoms can have other sources.

Interchange: 61318376440 · A14188 · TFS251 · SW4248

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

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

61318376440, 37838, A14188, TFS251, SW4248

Buyer's Q&A

Frequently Asked Questions

What does this cooling fan temperature switch do?

It is a radiator-mounted switch that senses coolant temperature and opens or closes the electric cooling fan circuit, turning the fan on as the engine warms and off once it cools.

Which vehicles does the Four Seasons switch fit?

It is a direct-fit for the 1997 BMW 318i, the 1997-1999 BMW 318ti, and the 1996-1998 BMW Z3. Check the "Vehicles it fits" section to confirm your exact vehicle.

What are the switching temperatures?

The fan switches on at 176/190 and off at 165/181, providing staged control of the cooling fan.

What connector and thread does it use?

It has a rectangular male connector with three terminals and an M14 x 1.50 male fitting thread.

What are signs this switch may need replacing?

A cooling fan that won't switch on, runs constantly, or an engine that runs hot can indicate a faulty switch. Diagnose the cause first, since these symptoms can have other sources.