2-5/8 U/L II Water Temp Gauge - 100-250F

The AutoMeter 2-5/8" Ultra-Lite II Water Temperature Gauge (Model 7737) is an electric analog water temp gauge engineered for vehicles requiring reliable engine coolant monitoring across a 100–250°F range. This compact instrument panel gauge features a short-sweep needle design, silver face, and precise thermal measurement in a lightweight package optimized for custom hot rods, street machines, and performance builds where weight reduction matters.

The 2-5/8-inch diameter dial fits standard gauge clusters and custom dash panels, while the electric operation eliminates mechanical coolant line routing—a significant advantage for tight engine bays. The short-sweep mechanism provides quick needle response to temperature changes, allowing drivers to detect overheating conditions faster than traditional slow-sweep gauges. AutoMeter's Ultra-Lite II series prioritizes dial readability and accuracy without the bulk of heavy cast-iron housings, making this gauge ideal for weight-conscious builds where every pound counts.

This water temperature gauge suits builders and enthusiasts installing custom instrument panels, upgrading older cooling systems with modern monitoring, or standardizing gauges across a fleet of performance vehicles. The 100–250°F range covers typical gasoline engine operating windows, from cold startup through sustained high-rpm operation. Installation requires a compatible water temperature sender (sold separately) and 12V electrical connection—both straightforward tasks for anyone working on engine bay wiring.

AutoMeter remains the standard reference for aftermarket gauging in the hot rod and performance community, with decades of track record in accuracy and reliability. The Ultra-Lite II design balances cost, durability, and weight savings—a proven formula for builders prioritizing both function and restraint in overall vehicle mass.