Is your temperature gauge stuck on "Cold," pegging "Hot," or just acting erratic? The Temperature Sending Unit (TSU) is the variable resistor that tells your gauge what to do.
Calibration Matters You cannot just use any sender. Vintage gauges require specific resistance ranges (Ohm ratings).
Warning Lights: Senders that trigger the "HOT" light.
Gauges: Precision senders for needle instruments.
NORS Accuracy: Our USA-made senders match the original factory calibration curve for Ford, GM, and Mopar gauges.
