/live/media/SI/SI_TS187_Fro.jpg)
Standard Ignition TS-187 Engine Cooling Fan Switch
| Brand | Standard Ignition TS-187 |
|---|---|
| Connector Gender | Female |
| Terminal Gender | Male |
| Terminal Type | Blade Terminals |
| Fits | Acura and Honda · 24 vehicles |
Plug-in design. Female round connector with blade terminals for straightforward installation.
Metal housing. Durable construction with a plastic-and-metal finish.
Toggle switch action. Open-at-idle operation for precise cooling fan control.
Cross-references Standard Ignition TS-187, 37773PH2004 and 37773PH2014 for the same application. See all 7.
Engine Cooling Fan Switch for Honda and Acura
Standard Ignition TS-187 is an engine cooling fan switch with a plug-in, round connector design and 12-volt operation. It is built with a metal housing and blade terminals for direct replacement service on select Honda Accord, Honda Prelude, and Acura TL applications.
Fits 1988-1991 Honda Accord, on radiator; fits 1988-1991 Honda Prelude, on radiator; fits 1990-1993 Honda Accord, on thermostat housing; fits 1992-1996 Honda Prelude, on thermostat housing; fits 1994 Honda Accord, with California emissions, on thermostat housing; fits 1996-1998 Acura TL, on radiator for engine cooling fan switch.
Key Features
- Standard Ignition TS-187 engine cooling fan switch
- Plug-in attachment method with one female round connector
- Two male blade terminals for direct electrical connection
- 16mm x 1.50 thread size for specified applications
- 12-volt switch with open-at-idle operation
- Metal housing with plastic and metal finish
- Round switch shape and toggle actuation style
Detailed Description
The Standard Ignition TS-187 is an engine cooling fan switch used in select Honda Accord, Honda Prelude, and Acura TL cooling system applications. It features a plug-in connector, 2 blade terminals, and a 16mm x 1.50 thread size, making it a direct-fit service part for vehicles that use this style of radiator or thermostat housing-mounted switch. The TS-187 is listed for 12-volt systems and is open at idle.
This part cross-references FS316 and TS187T for the same application. Standard Ignition TS-187 is a practical replacement choice when servicing a cooling fan switch on a Honda Accord, Honda Prelude, or Acura TL with the listed fitment.
What It Helps Fix
- Cooling fan that does not switch on at the proper temperature
- Cooling fan operation that is intermittent or inconsistent
- Engine temperature control issues related to a failed fan switch
- Electrical connection problems at the radiator or thermostat housing switch
- Check-engine or drivability concerns tied to cooling fan control on the listed vehicles
Installation Notes and Tips
- Verify the thread size, connector style, and mounting location before installation.
- Confirm whether the vehicle uses a radiator-mounted or thermostat housing-mounted switch.
- Inspect the connector and terminals for corrosion or heat damage before connecting the new switch.
- Use the vehicle service procedure for coolant draining and torque specifications.
- Check fan operation after installation to confirm proper temperature-based switching.
Quality Assurance
Standard Ignition supplies replacement electrical and engine management components for service applications, and TS-187 is built to match the listed connector, thread, and voltage requirements for the specified Honda and Acura fitments.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1998 | Acura | TL | — | 3.2L | V6 | N/A | Fits on radiator for engine cooling fan switch. |
| 1997 | Acura | TL | — | 3.2L | V6 | N/A | Fits on radiator for engine cooling fan switch. |
| 1996 | Acura | TL | — | 3.2L | V6 | N/A | Fits on radiator for engine cooling fan switch. |
| 1996 | Honda | Prelude | S | — | — | N/A | On Thermostat Housing |
| 1996 | Honda | Prelude | Si | — | — | N/A | On Thermostat Housing |
| 1995 | Honda | Prelude | S | — | — | N/A | On Thermostat Housing |
| 1995 | Honda | Prelude | SE | — | — | N/A | On Thermostat Housing |
| 1995 | Honda | Prelude | Si | — | — | N/A | On Thermostat Housing |
| 1994 | Honda | Accord | — | — | — | N/A | w/ Calif. Emissions; On Thermostat Housing |
| 1994 | Honda | Prelude | S | — | — | N/A | On Thermostat Housing |
| 1994 | Honda | Prelude | Si | — | — | N/A | On Thermostat Housing |
| 1993 | Honda | Accord | — | — | — | N/A | On Thermostat Housing |
| 1993 | Honda | Prelude | S | — | — | N/A | On Thermostat Housing |
| 1993 | Honda | Prelude | Si | — | — | N/A | On Thermostat Housing |
| 1992 | Honda | Accord | — | — | — | N/A | On Thermostat Housing |
| 1992 | Honda | Prelude | — | — | — | N/A | On Thermostat Housing |
| 1991 | Honda | Accord | — | — | — | N/A | On Thermostat Housing |
| 1991 | Honda | Prelude | — | — | — | N/A | w/ Thermactor Emission; On Radiator |
| 1990 | Honda | Accord | — | — | — | N/A | On Thermostat Housing |
| 1990 | Honda | Prelude | — | — | — | N/A | w/ Thermactor Emission; On Radiator |
| 1989 | Honda | Accord | — | — | — | N/A | w/ Thermactor Emission; On Radiator |
| 1989 | Honda | Prelude | — | — | — | N/A | w/ Thermactor Emission; On Radiator |
| 1988 | Honda | Accord | — | — | — | N/A | w/ Thermactor Emission; On Radiator |
| 1988 | Honda | Prelude | — | — | — | N/A | w/ Thermactor Emission; On Radiator |
| No rows match your filter. | |||||||