Cooling Fan Switch for 1979-1980 Nissan 280ZX & More - Standard Ignition TS-90

$55.99

Standard Ignition Engine Cooling Fan Switch TS-90

Standard Ignition Engine Cooling Fan Switch TS-90 - view 2

Standard Ignition Engine Cooling Fan Switch TS-90 - view 3

$55.99

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Part number: TS-90

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Standard Ignition Engine Cooling Fan Switch P/N:TS-90

$55.99

Description

Keep the radiator fan cycling on cue with the Standard Ignition switch TS-90, a coolant-side engine cooling fan switch that signals the fan controller when coolant reaches its set temperature. It fits many vehicles, among them the 1979-1980 Nissan 280ZX, 1975-1978 Nissan 280Z and 1974-1978 Nissan B210 — see the Buyer's Guide tab for the full list and engine-level fitment.

Temperature-triggered switching: a custom wax formulation expands when heated to drive a snap-action electrical contact and pass the signal on to the fan controller.
Factory-calibrated: the wax pellets are custom-formed for the specified temperature range, then each unit is calibrated and tested to confirm actuation at its lower-temperature set point.
Bimetallic contact arm: built as a creep-action device using two fused metals with different expansion rates for precise performance.
Robust build: high-grade materials meet the demands of professional service work.

If a faulty original switch is why your fan won't kick on or runs constantly, this part replaces it. Diagnose the cause before replacing, as those symptoms can have other sources.

Interchange: TFS501 · SW506 · FS140 · 12336278 · 37765657013 · 37780PA6003 · 21595M0205 · 21595M0206

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

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

TFS501, SW506, FS140, 12336278, 37765657013, 37780PA6003, 21595M0205, 21595M0206, TS-90

Buyer's Q&A

Frequently Asked Questions

What does the Standard Ignition TS-90 do?

It's an engine cooling fan switch. As coolant reaches its set temperature, a wax element expands to trip a snap-action contact that signals the fan controller to run the cooling fan.

Which vehicles does the TS-90 fit?

It fits many vehicles, among them the 1979-1980 Nissan 280ZX, 1975-1978 Nissan 280Z and 1974-1978 Nissan B210. Check the Buyer's Guide tab for the full list and engine-level details.

What are signs this fan switch may need replacing?

A fan that won't turn on as coolant heats up, or one that runs constantly, can indicate a failed switch. Diagnose the cause first, since these symptoms can have other sources.

How is the switch calibrated?

The wax pellets are custom-formed for the specified temperature range, and each unit is calibrated and tested to confirm it actuates at its lower-temperature set point.

What numbers does the TS-90 interchange with?

It replaces TFS501, SW506, FS140, 12336278, 37765657013, 37780PA6003, 21595M0205, and 21595M0206.