Auto Meter 4391 Voltmeter Gauge – Key Features & Functions
Electric Voltage Monitoring
The 4391 uses a direct electrical connection to provide:
- Accurate system voltage readings
- Real-time monitoring of battery and alternator output
- Reliable performance data
No guessing—just clear numbers.
Easy to read silver dials and top contrast orange pointers combined with probably the most diverse gauge offering make this light weight race proven gauge a contest favorite..
2-5/16″ Gauge Size
The 2.3125 inch diameter provides:
- Easy-to-read display
- Better visibility at a glance
- Standard compatibility with pods and panels
Because electrical issues don’t wait for you to look closer.
Ultra-Lite Series Styling
Clean, race-inspired design:
- Bright aluminum-style dial
- High-contrast markings
- Lightweight performance aesthetic
Simple, clean, and functional.
Traditional incandescent lights illuminates across the perimeter of the dial
12 and 16 volt compatible, neatly-suited with just about each street car or race car electrical system
Real-Time Electrical Feedback
Built for accurate monitoring:
- Immediate voltage readings
- Stable needle movement
- Reliable performance under load
Because voltage fluctuations happen fast.
Durable Performance Construction
Designed for long-term use:
- High-quality internal components
- Consistent accuracy over time
- Built for street and performance applications
It’s built to keep your electrical system in check.
Gauge kit includes 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 fast and accurate readings
Why You Need This Auto Meter 4391 Voltmeter Gauge
If you’re running aftermarket electronics, upgraded charging systems, or just want reliability, this gauge is essential.
The Auto Meter 4391 Voltmeter Gauge gives you:
- Accurate, real-time voltage monitoring
- Early detection of charging system issues
- Improved electrical system reliability
- Clean, easy-to-read performance display
Because electrical problems don’t announce themselves—they just leave you stranded.
Ideal Applications
- Daily drivers
- Performance builds
- Cars with upgraded electronics
- Audio system builds
- Restomods
Final Verdict
The Auto Meter 4391 Ultra-Lite Electric Voltmeter Gauge is a simple but critical upgrade for keeping your electrical system in check.
It’s accurate, easy to install, and gives you the data you need before problems escalate.
Because a dead battery is never convenient.
There are no reviews yet.