Description
Product Overview
The Auto Meter 7757 Ultra‑Lite Pro II is a compact 2‑5/8″ electric transmission temperature gauge designed for high‑performance vehicles. Constructed from smooth, impact‑resistant plastic, the unit measures 5 × 6 × 6 inches and weighs just 12.8 oz, making it easy to mount in tight engine bays. A modern white LED illuminates the dial through the glass, delivering crystal‑clear readings from 100°F to 250°F even in low‑light conditions. The gauge operates on 12 V or 16 V systems, ensuring compatibility with virtually any street or race car electrical setup. Included in the kit are a 1/8″ NPT temperature sender, 3/8″ and 1/2″ NPT adapters, mounting hardware, and step‑by‑step instructions for a hassle‑free installation.
Usage
Designed for both daily drivers and competitive racers, this gauge provides real‑time temperature data that helps prevent transmission overheating during aggressive driving or prolonged track sessions. Install it on any vehicle equipped with standard NPT ports, and monitor the gauge while navigating city traffic, highway cruising, or high‑speed laps. The clear LED face ensures you can glance at the temperature without distraction, making it an essential tool for performance tuning, endurance events, and routine maintenance checks. 
Why Choose Us
Auto Meter’s reputation for race‑proven air‑core instruments translates into a gauge that delivers rapid, accurate readings while keeping hazardous fluids sealed away from the cabin. The Ultra‑Lite Pro II’s plastic housing resists corrosion and vibration, extending service life under harsh conditions. Each unit undergoes strict quality testing to meet automotive standards, and the comprehensive installation kit eliminates the need for additional purchases. With a 5‑star rating from verified buyers, this gauge combines reliability, ease of use, and value for performance‑focused drivers.
Key Features
- Bright white LED through‑the‑dial lighting for night‑time visibility
- Dual voltage compatibility (12 V & 16 V) fits most street and race cars
- Complete installation kit with sender, adapters, and hardware
- Durable smooth plastic case resistant to heat and vibration
- Accurate 100‑250°F range with fast response time
FAQ
What type of vehicle electrical systems are compatible?
The gauge operates on both 12 V and 16 V systems, making it suitable for virtually any street car, race car, or off‑road vehicle.
Is the gauge waterproof?
While the gauge housing is sealed against moisture, it is intended for interior installation where it is protected from direct water exposure.
Can I use the gauge with an existing temperature sender?
Yes, the kit includes a 1/8″ NPT sender, but you can connect any compatible NPT sender using the provided adapters.
How accurate is the temperature reading?
The air‑core design provides rapid response and maintains accuracy within ±2°F across the 100‑250°F range.
Do I need additional tools for installation?
All necessary mounting hardware and detailed instructions are included; a basic set of hand tools is sufficient for installation.





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