Keep your engine's cooling fan switching on at the right temperature with the Standard Ignition switch, model TS-428. This Engine Cooling Fan Switch drops in as a direct-fit replacement for the 1994-1995 Hyundai Elantra. It is a temperature-sensitive thermal switch that makes an electrical contact at its specified set point and passes that signal to the fan controller, telling the cooling fan when to run.
Factory-calibrated and tested: every unit is calibrated and tested to confirm switch actuation at its specified temperature, closing the electrical contact at the specified lower-temperature set point.
Wax-pellet actuation: a custom wax formulation expands when heated to activate a snap-action electrical contact and transfer the signal to the fan controller.
Bimetallic contact arm: formed from two metals with different expansion rates fused together — a creep-action device built for precise performance.
Robust build: high-grade materials and a robust design meet the demands of today's service professional.
If a failed cooling fan switch is the cause of a fan that won't come on, a fan that runs constantly, or higher-than-normal coolant temperature, this replaces it. Diagnose the circuit before replacing.
Interchange: 17-1177
171177 · TFS670 · FS306 · 2136037500 · 2536037100 · 36037100 · 3736037110
This part cross-references / interchanges with the following part numbers:
TFS670, FS306, 2136037500, 2536037100, 36037100, 3736037110, 17-1177, TS-428
Frequently Asked Questions
What does the Standard Ignition TS-428 do?
It is an engine cooling fan switch — a temperature-sensitive thermal switch that makes an electrical contact at its specified set point and signals the fan controller when to run the cooling fan.
What vehicle does the TS-428 fit?
It is a direct-fit replacement for the 1994-1995 Hyundai Elantra. See the "Vehicles it fits" section to confirm the fit for your vehicle.
What are signs this cooling fan switch may need replacing?
A cooling fan that won't switch on, a fan that runs constantly, or higher-than-normal coolant temperature can be signs. Diagnose the circuit first, since other parts can cause the same symptoms.
Is this switch tested before it ships?
Yes. Each unit is factory-calibrated and tested to confirm switch actuation at its specified temperature, closing the electrical contact at the specified lower-temperature set point.
What part numbers does the TS-428 cross-reference?
It interchanges with 17-1177 (171177), TFS670, FS306, 2136037500, 2536037100, 36037100 and 3736037110.
