Temperature Sensor 12MM

The Temperature Sensor 12MM by Classic Instruments is a precision engine temperature sending unit engineered for accurate coolant temperature monitoring in automotive applications. Designed for vehicle owners, mechanics, and restoration enthusiasts who demand reliable gauge readings, this 12mm x 1.50 thread male sensor bridges your cooling system and dashboard instrumentation. Proper coolant temperature feedback is essential for engine performance, fuel efficiency, and early detection of overheating conditions that could cause catastrophic engine damage.

This temperature sending unit operates by varying electrical resistance in response to coolant temperature changes, translating physical thermal data into analog gauge movement on Classic Instruments dashboards and compatible aftermarket gauges. The 12mm male thread design allows direct installation into factory or custom coolant passages, block bosses, or manifold ports on most automotive engines. The compact 3.15 x 0.85 x 3.2-inch footprint and minimal 0.1 lb weight ensure discreet integration without interference to engine bay components or wiring harnesses.

Buyers restoring vintage muscle cars, hot rods, custom trucks, and street machines benefit most from Classic Instruments temperature sensors paired with their gauges for authentic and reliable cooling system feedback. Installation requires a compatible mounting location with 12mm x 1.50 male thread access and connection to an appropriate temperature gauge sender wire. This sensor works seamlessly with Classic Instruments gauges and most aftermarket electric temperature gauges that accept standard resistance-type senders for real-time engine thermal monitoring.