2-1/16 in Water Temp. Gauge

The 2-1/16 in Water Temp. Gauge from AutoMeter is a mechanical analog instrument built for serious engine builders, restoration specialists, and performance enthusiasts who demand real-time coolant temperature monitoring. This full-sweep gauge reads from 140 to 280 degrees Fahrenheit, giving you precise visibility into one of the most critical engine parameters. Whether you're tuning a high-output street engine, monitoring cooling system efficiency on a freshly rebuilt block, or diagnosing thermal issues on a classic car, accurate water temperature feedback is non-negotiable for engine longevity and performance consistency.

Built on mechanical operation rather than electronic sensors, this AutoMeter gauge eliminates dependency on engine control modules or digital signal processing, making it ideal for carbureted engines, vintage builds, and installations where simplicity and reliability trump complexity. The black face with clear graduated markings ensures readability even under demanding lighting conditions, and the 2-1/16 inch diameter fits standard gauge clusters or custom dash layouts with minimal fabrication. The full-sweep needle movement provides instant visual feedback—critical when tracking coolant temperature swings during sustained acceleration or towing, where delayed electronic readings can mask dangerous thermal spikes before damage occurs.

Mechanics and enthusiasts gravitate to AutoMeter mechanical gauges when factory instrumentation is absent, unreliable, or inadequate for high-performance applications. Installation requires only a capillary tube connection to the engine block or intake manifold coolant port—no electrical harness, no calibration software. This unit weighs just 0.87 lbs and measures 5.65 x 5.35 x 5.7 inches, fitting compact or custom gauge panels with ease. Use this gauge on any liquid-cooled engine operating within the 140–280°F range, from vintage muscle cars and hot rods to modern fuel-injected conversions and marine engines.