Keep your engine's cooling fan cycling on cue with the Standard Ignition Engine Cooling Fan Switch TS-454 (also written TS454). This coolant fan switch senses coolant temperature and signals the fan controller to run the cooling fan, and it drops in as a direct-fit replacement for the 2001-2003 Acura CL, 2001-2002 Acura MDX, and 2002-2003 Acura TL.
- Temperature-activated switching: a custom wax formulation expands when heated to trigger a snap-action electrical contact and pass the signal to the fan controller.
- Calibrated set point: wax pellets are custom-formed for the specified temperature range, and every unit is calibrated and factory-tested to confirm actuation at its lower-temperature set point.
- Bimetallic contact arm: designed with a formed bimetal arm whose two fused metals expand at different rates, a creep-action device built for precise performance.
- Built for the trade: robust design and high-grade materials made to meet the demands of today's service professional.
Standard Ignition maintains quality control from componentry through finished product as a global manufacturer of original-equipment ignition products. If a failed fan switch is the cause of your cooling fan not engaging or an overheating condition, this replaces it.
Interchange: 37773PGEA01 · WT7208 · SW2902 · TS7208
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the TS-454 cooling fan switch do?
It senses coolant temperature and, at its calibrated set point, closes an electrical contact that signals the fan controller to run the engine cooling fan.
Which vehicles does this switch fit?
It's a direct-fit replacement for the 2001-2003 Acura CL, 2001-2002 Acura MDX, and 2002-2003 Acura TL. See the Buyer's Guide tab for engine-level details.
How does the switch activate?
A custom wax formulation expands when heated to trigger a snap-action contact, and a formed bimetallic contact arm uses two fused metals to provide precise creep-action movement.
Is the switch pre-calibrated?
Yes. The wax pellets are custom-formed for the temperature range, and every unit is factory-calibrated and tested to confirm actuation at its specified lower-temperature set point.
What are signs this switch may need replacing?
A cooling fan that won't engage, engages late, or an overheating condition can be signs. Diagnose the cause first, since these symptoms can have other sources.
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