Keep the cooling fan cycling on cue with the Standard Ignition switch — the Engine Cooling Fan Switch / Engine Cooling Fan Temperature Switch (TS-412, also written TS412). It drops in as a direct-fit replacement for the 1990-1992 Infiniti M30 and 1990-1992 Infiniti Q45. This thermal switch senses engine coolant temperature and snaps its electrical contact closed at a calibrated set point to signal the fan controller.
Built to the OE resistance and temperature ratings so it switches at the correct temperature, and engineered to carry a high electric current to relay the signal to increase or decrease airflow. If a failed coolant fan switch is the reason your fan isn't running as intended, this replaces it.
Interchange: TFS626 · FS180 · 2158860U00 · 21595F6600
This part cross-references / interchanges with the following part numbers:
Does this switch fit my Infiniti M30 or Q45?
Yes — the TS-412 is a direct-fit replacement for the 1990-1992 Infiniti M30 and the 1990-1992 Infiniti Q45. Check the Buyer's Guide tab to confirm the engine on your vehicle.
What does this M30 switch do?
It senses engine coolant temperature and snaps its electrical contact closed at a calibrated set point, sending the signal to the fan controller to run the cooling fan.
What numbers does the TS-412 interchange with?
It replaces TFS626, FS180, 2158860U00, and 21595F6600.
How is the switch calibrated?
Every unit is factory-calibrated and tested to confirm it makes electrical contact at its specified lower-temperature set point.
What are signs this switch may need replacing?
A cooling fan that won't turn on at operating temperature, or engine overheating, can be signs. Diagnose the cause first, since other components can produce the same symptoms.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
