2-5/8 Ultra-Nite Water Temp Gauge 140-280

The AutoMeter 2-5/8 Ultra-Nite Water Temperature Gauge (Model 4535) is a mechanical analog instrument designed for real-time engine coolant monitoring in vehicles operating under demanding conditions. This full-sweep gauge delivers accurate temperature readings across a 140–280 degree Fahrenheit range, making it essential for operators who need reliable thermal data during high-performance driving, heavy towing, or extended off-road operations where engine stress and heat management directly impact reliability and safety.

The 2-5/8-inch diameter face fits standard dash and pillar-mounted installations, while the white dial with clear graduated markings ensures visibility in varied lighting conditions. As a fully mechanical gauge with no electronic sensors or batteries, the Ultra-Nite operates independently of vehicle electrical systems—a critical advantage in vehicles modified for extreme use, in aging platforms where electronics are marginal, or in situations where sensor redundancy is required. Full-sweep needle response means the gauge tracks temperature changes without lag, providing immediate feedback when coolant levels climb under load.

This gauge serves operators of lifted trucks, marine vessels, agricultural equipment, competition vehicles, and any platform where coolant temperature is a performance and longevity variable. Drivers who tow beyond stock capacity, operate in high-ambient environments, or run modified engines benefit from direct temperature monitoring independent of onboard computer systems. The AutoMeter 4535 integrates into custom gauge clusters, dashboard pods, or standalone pillar installations without requiring wiring complexity or computer integration.

AutoMeter's Ultra-Nite series is positioned as a mechanical instrumentation standard for users who prioritize analog reliability and unambiguous real-time data. The 140–280 range covers normal to elevated engine operating temperatures, alerting operators to thermal stress before system failure. Weighing 0.89 pounds with compact dimensions, this gauge adds minimal weight or footprint while delivering the thermal visibility professional drivers and equipment operators depend on.