Keep your cooling fan responding to engine temperature with the Standard Ignition Engine Cooling Fan Switch TS-187. It is a direct-fit replacement for many vehicles, among them the 1988-1994 Honda Accord, 1988-1996 Honda Prelude and 1996-1998 Acura TL; see the "Vehicles it fits" section for the full list. This coolant fan switch senses coolant temperature and sends the electrical signal that tells the fan controller when to run.
- Factory-calibrated set point: Each thermal switch is calibrated at the factory to make electrical contact at its specified temperature set point.
- Tested actuation: Every unit is calibrated and tested to confirm that the switch actuates at its specified temperature.
- Controlled production: As a global manufacturer of original equipment ignition products, Standard Ignition maintains quality control throughout the manufacturing process, from componentry to the finished product.
- Built for the shop: The switch pairs a robust design with high-grade materials to meet the demands of today's service professionals.
This Standard Ignition switch may need replacing if the cooling fan won't switch on, if the fan runs continuously, or if engine temperature climbs at idle or in slow traffic. Relays, wiring, the fan motor or the fan controller can cause the same symptoms, so diagnose the cooling fan circuit before you replace the switch.
See the "Vehicles it fits" section for engine-specific details.
Interchange: 37773PH2014 · TFS700 · SW546 · FS316 · 37773PH2004 · 37773PT0004 · 37773PTO004 · TS187T
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
37773PH2014, TFS700, SW546, FS316, 37773PH2004, 37773PT0004, 37773PTO004, TS-187, TS187T
Frequently Asked Questions
What does the TS-187 cooling fan switch do?
It monitors coolant temperature. When the coolant reaches the switch's calibrated set point, it makes electrical contact and signals the fan controller to turn the cooling fan on.
Which vehicles does the Standard Ignition TS-187 fit?
It fits many vehicles, among them the 1988-1994 Honda Accord, 1988-1996 Honda Prelude and 1996-1998 Acura TL. See the "Vehicles it fits" section for the full list and engine details.
What are signs of a failing coolant fan switch?
Common signs include a cooling fan that won't turn on, a fan that never shuts off, or rising engine temperature at idle. Relays, wiring and the fan motor can cause the same symptoms, so diagnose the circuit first.
Is each switch calibrated and tested?
Yes. Standard Ignition calibrates and tests its thermal switches to confirm that each one actuates at its specified temperature.
What part numbers does TS-187 interchange with?
It interchanges with 37773PH2014, TFS700, SW546, FS316, 37773PH2004, 37773PT0004, 37773PTO004 and TS187T.
