AutoMeter Ultra-Nite 2-5/8in Water Temperature Gauge

2010–2025 Universal Fit for Automotive Applications

Part #: 4531

Overview

The AutoMeter Ultra-Nite 2-5/8-inch Water Temperature Gauge is an essential instrument for performance enthusiasts and daily drivers alike who want to keep a close eye on their engine's coolant temperature. Engine heat is a critical factor affecting both performance and reliability, and monitoring water temperature helps prevent overheating and potential engine damage. Designed with precision and durability in mind, this gauge provides accurate readings and quick response times, ensuring you stay informed about your engine’s thermal status at all times.

Whether you're pushing your vehicle on the track, towing heavy loads, or simply want peace of mind during spirited driving, this water temperature gauge is a reliable addition to your dashboard. Its glow-in-the-dark dial ensures visibility in low-light conditions, making it easy to monitor your engine temperature during night runs or in dark engine bays. With its robust mechanical movement, the Ultra-Nite gauge offers trusted accuracy and durability even in the harshest environments.

Key Features

The AutoMeter Ultra-Nite Water Temperature Gauge is engineered to deliver precise and dependable readings, helping you optimize your vehicle’s performance and prevent overheating issues. Its advanced design incorporates several key features:

• Mechanical Bourdon Tube Movement: Provides unparalleled accuracy and quick response, ensuring you get real-time temperature data without lag.
• Glow-In-The-Dark Dial: Enhances visibility in low-light conditions, allowing for easy monitoring during night driving or in dark engine bays.
• 2-5/8-inch Diameter: A standard size that fits most gauge pods and dashboards, offering a clean and professional look.
• High-Quality Construction: Built with durable materials to withstand vibrations, heat, and harsh automotive environments.
• Included Components: Comes with a 6-inch capillary tube and 1/2-inch NPT mounting nut for straightforward installation.
• Accurate Temperature Range: Designed to measure engine coolant temperatures typically between 140°F and 280°F, covering most performance and stock applications.
• Trusted Brand: AutoMeter is a race-proven manufacturer known for producing reliable, high-performance gauges for automotive enthusiasts.

Construction & Design

The Ultra-Nite Water Temperature Gauge features a rugged, all-metal housing designed to endure the demanding conditions of high-performance driving. Its 2-5/8-inch diameter face is crafted for easy readability, with a luminous dial that glows in the dark for enhanced visibility. The gauge employs a high-precision Bourdon tube movement, which translates pressure changes within the capillary tube into accurate temperature readings. This mechanical design eliminates the need for electrical sensors, reducing potential points of failure and ensuring long-term reliability.

The included capillary tube is constructed from high-quality materials that resist heat and vibration, maintaining calibration over time. The 1/2-inch NPT mounting nut allows for secure attachment to your vehicle’s coolant system or designated mounting point, ensuring a tight seal and accurate readings. Overall, the design emphasizes durability, ease of installation, and consistent performance in demanding automotive environments.

Performance & Sound

While this gauge does not produce sound, its performance is characterized by rapid, precise readings that help you monitor your engine’s water temperature accurately. Maintaining optimal coolant temperatures supports better engine response, prevents overheating, and contributes to the longevity of your vehicle. The glow-in-the-dark feature ensures you can easily read the gauge even in low-light conditions, making it a practical choice for night driving or dark engine bays.

Installation & Fitment

The AutoMeter Ultra-Nite Water Temperature Gauge is designed for straightforward installation. It uses a 1/2-inch NPT fitting for easy connection to your vehicle’s cooling system. No electrical wiring is required, as it operates mechanically through the capillary tube. The included 6-inch capillary tube provides ample length for most installations, and the gauge can be mounted in any standard gauge pod or dashboard opening. No cutting, drilling, or tuning is necessary, making it an ideal upgrade for both novice and experienced automotive enthusiasts.

• Simply connect the capillary tube to your vehicle’s coolant system.
• Mount the gauge in a suitable location using the provided hardware.
• Ensure the capillary tube is routed away from hot or moving components for longevity.

Once installed, you’ll have a reliable, easy-to-read water temperature gauge that enhances your vehicle’s monitoring capabilities.

What's Included

• AutoMeter Ultra-Nite 2-5/8-inch Water Temperature Gauge
• 6-inch capillary tube
• 1/2-inch NPT mounting nut
• Installation instructions

Ideal For

• Performance enthusiasts seeking accurate engine temperature monitoring
• Daily drivers who want reliable coolant temperature readings
• Track day participants and racers aiming to prevent overheating
• Anyone upgrading their dashboard instrumentation for better visibility and durability

Emissions Note

This product is designed for off-road or racing use only and may not be legal for street use in all jurisdictions. Please check local regulations before installation.