Put a factory-calibrated trigger point behind your dash temperature warning light with the Standard Ignition switch TS-50, an engine coolant temperature sender with light. It serves as a direct-fit replacement for the listed applications, including the 1973-1974, 1976 and 1979 Chevrolet Impala, 1973-1979 Pontiac Firebird, 1973-1974 Chevrolet El Camino, 1977-1978 Chevrolet Camaro and 1979-1980 Cadillac Eldorado. See the "Vehicles it fits" section for the full list and engine details.
- Built for warning-light systems: Cataloged as a temperature sender with light. It makes electrical contact at its specified temperature set point to operate the dash temperature warning light.
- Calibrated and tested: Every unit is calibrated and tested to confirm switch actuation at its specified temperature. Each thermal switch is factory-calibrated to make electrical contact at its set point.
- Quality control from start to finish: Standard Ignition is a global manufacturer of original equipment ignition products. The company keeps quality control in-house from componentry through to the finished product.
- Robust design: High-grade materials and a robust design are intended to meet the demanding needs of today's service professional.
This part is listed under both the Switch and Engine Coolant Temperature Sender part types. It may need replacing if the temperature warning light stays on with a cold engine, never comes on, or flickers, or if coolant seeps at the sender threads. Wiring, bulb and cooling-system faults can cause similar signs, so diagnose the cause before replacing.
Interchange: WT7234 · TU44 · TS7234 · 25036982 · 6490440 · 6490469 · 6490555
This part cross-references / interchanges with the following part numbers:
WT7234, TU44, TS7234, 25036982, 6490440, 6490469, 6490555
Frequently Asked Questions
Will this Impala switch fit my car?
The TS-50 is listed for the 1973-1974, 1976 and 1979 Chevrolet Impala. Check the "Vehicles it fits" section for the engine-level details for your exact vehicle.
What does a temperature sender with light do?
It is a thermal switch that makes electrical contact at its specified temperature set point. That contact operates the dashboard temperature warning light.
How is the TS-50 checked before it ships?
Standard Ignition calibrates and tests every unit to confirm the switch actuates at its specified temperature.
What are signs the coolant temperature sender may need replacing?
Signs include a warning light that stays on with a cold engine, never lights, or flickers, and coolant seeping at the threads. Wiring and cooling faults can mimic these, so diagnose first.
Which part numbers does the TS-50 interchange with?
It cross-references WT7234, TU44, TS7234, 25036982, 6490440, 6490469 and 6490555.
