Keep the electric cooling fan cycling on cue with the Standard Ignition Engine Cooling Fan Switch TS-118. This thermal switch senses coolant temperature and makes an electrical contact at its calibrated set point, transferring the signal to the fan controller so the cooling fan runs when the engine needs it. It's a direct-fit replacement for the 1984-1985 Honda Accord and 1983-1985 Honda Prelude — see the Buyer's Guide tab for engine-level fitment.
Precise actuation: Standard specifies custom wax formulations that expand when heated to activate a snap-action electrical contact and pass the signal to the fan controller.
Calibrated & tested: Wax pellets are custom-formed for the temperature-range specification, and every unit is calibrated and tested to confirm switch actuation at its specified temperature and lower-temperature set point.
Robust build: A formed bimetallic contact arm uses the different expansion rates of two fused metals for a creep-action device with precise performance, using high-grade materials to meet the demands of today's service professional.
If a failed cooling fan switch is the cause of an overheating engine or a fan that won't turn on, this replaces it. Diagnose the cause before replacing.
Interchange: 17-1061
171061 · TFS513 · SW518 · FS132 · 19021006 · 37773PB1003 · 37773PBI003
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this cooling fan switch do?
It senses coolant temperature and makes an electrical contact at its calibrated set point, transferring the signal to the fan controller so the electric cooling fan runs when the engine needs it.
Which vehicles does the TS-118 fit?
It's a direct-fit replacement for the 1984-1985 Honda Accord and 1983-1985 Honda Prelude. Check the Buyer's Guide tab for engine-level fitment for your vehicle.
How is the switch calibrated?
The wax pellets are custom-formed for the temperature-range specification, and every unit is factory-calibrated and tested to confirm it actuates at its specified temperature and lower-temperature set point.
Could a bad fan switch cause my engine to overheat?
A faulty switch can keep the fan from turning on, but overheating has several possible causes. Diagnose the cause first; if this switch is at fault, replacing it addresses that.
What numbers does this part interchange with?
It cross-references 17-1061, 171061, TFS513, SW518, FS132, 19021006, 37773PB1003, and 37773PBI003.
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