AutoMeter Ultra-Lite II Water Temperature Gauge

2010–2025 Universal Fitment for Automotive Water Temperature Monitoring

Part #: 7731

Overview

Maintaining optimal engine water temperature is crucial for performance, reliability, and engine longevity. The AutoMeter Ultra-Lite II 2 5/8-inch Mechanical Water Temperature Gauge is designed for automotive enthusiasts who demand precise, quick, and reliable temperature readings. Whether you're pushing your vehicle on the track, off-road adventures, or simply want to keep a close eye on your engine's health during daily driving, this gauge provides the accurate data you need to prevent overheating and ensure your engine runs at its best.

Built with advanced mechanical movement technology, this gauge offers unparalleled accuracy and responsiveness. Its compact 2 5/8-inch size makes it a versatile addition to any dashboard or instrument cluster, providing clear visibility without cluttering your interior. Easy to install with included hardware, the Ultra-Lite II is a reliable choice for performance-minded drivers who want to monitor their engine's water temperature with confidence.

Key Features

The AutoMeter Ultra-Lite II Water Temperature Gauge combines precision engineering with user-friendly design to deliver a superior monitoring experience. Key features include:

• Advanced Bourdon Tube Movement: Utilizes a race-proven mechanical movement that provides trusted accuracy and quick response times, ensuring you get real-time temperature data during demanding driving conditions.
• Compact 2 5/8-inch Diameter: A perfect size for installation in tight spaces or custom dashboards, offering clear and easy-to-read readings at a glance.
• High-Quality Construction: Features a durable, lightweight aluminum case that resists corrosion and withstands harsh engine bay environments.
• Precise Capillary Tube: Includes a 6-inch capillary tube that ensures fast transmission of temperature changes from the engine to the gauge.
• Universal Mounting Nut: Comes with a 1/2" NPT mounting nut for straightforward installation into most water outlets or fittings.
• Clear, Easy-to-Read Dial: The high-contrast black dial with white markings ensures visibility in all lighting conditions, helping you monitor engine temperature effortlessly.
• Simple Installation: Designed for plug-and-play setup with minimal wiring or calibration required, making it suitable for both novice and experienced installers.

Construction & Design

The Ultra-Lite II gauge features a robust aluminum housing that is lightweight yet durable, designed to withstand the rigors of high-performance driving and harsh engine bay conditions. Its advanced Bourdon tube movement is a hallmark of precision mechanical instrumentation, providing accurate readings without the need for electrical power or complex wiring. The included capillary tube is constructed from high-quality materials to ensure quick response and long-term reliability. The compact size and sleek design make it an ideal choice for custom dashboards, racing vehicles, or any application where space is limited but performance is paramount.

Performance & Sound

This mechanical water temperature gauge offers rapid and accurate readings, allowing you to monitor your engine's coolant temperature in real-time. While it does not produce sound, its precise measurement helps you detect overheating issues early, supporting optimal engine performance and preventing costly damage. Its quick response time ensures you can react promptly to temperature fluctuations during spirited driving or demanding conditions.

Installation & Fitment

The AutoMeter Ultra-Lite II Water Temperature Gauge is designed for straightforward installation. It mounts directly into most water outlets or fittings with the included 1/2" NPT nut. The 6-inch capillary tube connects the sensor to the gauge, transmitting temperature data swiftly and accurately. No complex wiring or calibration is necessary, making it suitable for both DIY enthusiasts and professional installers. Ensure the sensor is properly sealed to prevent leaks, and position the gauge where it is easily visible during operation.

• Includes gauge, capillary tube, mounting hardware, and instructions
• Compatible with most vehicles with standard water outlet fittings
• No cutting, drilling, or tuning required for installation

What's Included

• AutoMeter Ultra-Lite II 2 5/8-inch Mechanical Water Temperature Gauge
• 6-inch capillary tube with sensor
• Mounting hardware and nut
• Installation instructions

Ideal For

• Performance enthusiasts and racers seeking accurate water temperature monitoring
• Daily drivers who want reliable engine temperature data
• Off-road vehicles exposed to demanding conditions
• Custom dashboard builds requiring compact, precise instrumentation

Emissions Note

This product is designed for off-road or racing use only and is not 50-state legal for street use. Please verify local regulations before installation.