Key Features & Functions
Electric Temperature Monitoring
The 3531 uses an electric sending unit, providing:
- Clean installation (no coolant lines inside cabin)
- Reliable signal transmission
- Accurate real-time readings
Less mess, more control.
2-5/8″ Large Gauge Size
The 2.625 inch diameter gives you:
- Larger display for easy readability
- Better visibility under load
- Ideal for performance-focused interiors
Because temperature spikes don’t wait for you to squint.
This diverse series of gauges combines the classic tricky Auto Meter look with over 30 years of race proven design. Red pointer for fast glance monitoring. Rugged reliable performance. Precision movement and extreme accuracy..
Traditional incandescent lights illuminates across the perimeter of the dial
Sport-Comp Performance Styling
Classic Auto Meter design:
- Black dial with bold white markings
- High-contrast needle
- Race-inspired look
Clean, aggressive, and easy to read.
Real-Time Temperature Feedback
Designed for performance monitoring:
- Immediate response to temp changes
- Reliable readings under load
- Early warning of overheating conditions
Because overheating doesn’t give second chances.
12 and 16 volt compatible, neatly-suited with just about each street car or race car electrical system
Durable, Performance-Ready Construction
Built for real-world use:
- Long-lasting internal components
- Consistent accuracy over time
- Designed for performance environments
It’s built to keep up with your engine.
Why You Need This Auto Meter 3531 Water Temp Gauge
If you’re making power, you’re making heat—and you need to manage it.
The Auto Meter 3531 Water Temp Gauge gives you:
- Accurate, real-time coolant temperature monitoring
- Early detection of overheating issues
- Improved engine reliability and longevity
- Confidence when pushing your build harder
Because overheating is one of the fastest ways to ruin an engine.
Gauge kit includes 1/8” NPT temperature sender, 3/8” and 1/2″ NPT adapters, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation
Auto Meter’s race proven air-core electric instruments supply quick and accurate readings whilst keeping hazardous fluids out of doors of the vehicle
Ideal Applications
- Performance street builds
- Turbocharged or high-output engines
- Track and race cars
- Restomods
- Daily drivers
Final Verdict
The Auto Meter 3531 Sport-Comp Electric Water Temperature Gauge is a must-have for any performance-focused build.
It’s accurate, easy to install, and gives you critical data you can’t afford to ignore.
Because when temps rise… problems follow.
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