Keep a reliable read on engine temperature with the Standard Ignition Engine Coolant Temperature Sender TS-51. It drops in as a direct-fit replacement across a wide range of classic 1969-1976 GM cars and trucks — from the 1972 Chevrolet Camaro and 1970-1973 Chevrolet El Camino to the 1980-1981 Cadillac DeVille and 1971-1976 Chevrolet Vega — with dozens more applications listed in the Buyer's Guide.
What it does: the sender sits in the engine's coolant passage and changes its resistance as coolant temperature rises and falls, feeding that signal to the dashboard temperature gauge so you can monitor how hot the engine is running.
Signs this part may need replacing: a temperature gauge that reads erratically, stays pinned high or low, or stops moving. Because those symptoms can have other causes, diagnose the circuit first; if the original sender is the cause, this replaces it.
Interchange: WT343 · TU47 · TS6638 · 25036521 · 25036526 · 6489600 · 6490452 · 8992165 · 8992238. Manufacturer part number TS-51.
This part cross-references / interchanges with the following part numbers:
What does the TS-51 coolant temperature sender do?
It sits in the engine's coolant passage and changes its resistance with coolant temperature, sending that signal to the dashboard temperature gauge so you can monitor how hot the engine is running.
What vehicles does this sender fit?
It's a direct-fit replacement for many 1969-1976 Buick, Cadillac, Chevrolet, GMC, Oldsmobile and Pontiac models. See the Buyer's Guide tab for the full list of applications.
How do I know if my temperature sender is failing?
Common signs are a gauge that reads erratically, stays pinned high or low, or doesn't move at all. Diagnose the circuit first, since wiring or the gauge itself can cause the same symptoms.
What's the difference between a sender and a sensor?
A sender feeds the dashboard temperature gauge, while a sensor typically signals the engine computer. This TS-51 is a sender for the gauge.
What numbers does this part interchange with?
WT343, TU47, TS6638, 25036521, 25036526, 6489600, 6490452, 8992165 and 8992238. Its own manufacturer part number is TS-51.
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.
