Cooling Fan Switch for 1986-1990 Nissan Sentra & More - Standard Ignition TS-189

Shopping for a Standard Ignition switch that tells your cooling fan when to run? The Standard Ignition Engine Cooling Fan Switch TS-189 (coolant fan switch) senses coolant temperature and makes electrical contact at its calibrated set point. That contact sends the signal used to switch the engine cooling fan on. It is a direct-fit replacement for many vehicles, among them the 1986-1990 Nissan Sentra, 1991-1992 Nissan NX and 1987-1989 Nissan Pulsar NX. See the "Vehicles it fits" section for the full list and engine details.

• Quality control throughout: Standard Ignition is a global manufacturer of original equipment ignition products. It controls quality through the whole process, from componentry to the finished switch.
• Calibrated and tested: Units are calibrated and tested to confirm the switch actuates at its specified temperature.
• Factory-calibrated set point: The thermal switches are factory-calibrated to make electrical contact at the specified lower-temperature set point.
• Built for the shop: A robust design and high-grade materials are intended to meet the stringent demands of today's service professional.

A fan switch that no longer closes at the right temperature may leave the fan off as the engine warms. A switch that stays closed may keep the fan running. Signs this Standard Ignition switch may need replacing include a cooling fan that won't come on, a fan that runs constantly, or a climbing temperature gauge. Wiring, relays, and the fan motor can cause the same symptoms, so diagnose the cooling system before replacing the switch.

Interchange: 17-1085
TFS543 · 8472 · SW522 · FS195 · 19021016 · 2159563A00 · 2159563A01 · 171085