Auto Meter 4351 Ultra-Lite Mechanical Transmission Temperature Gauge

Why Transmission Temperature Matters

Your transmission depends on fluid to:

• Lubricate internal components
• Transfer power efficiently
• Keep everything cool

Too hot:

• Fluid breakdown
• Slipping gears
• Premature transmission failure

Too cold:

• Poor fluid performance
• Reduced efficiency

This gauge lets you monitor temps and prevent costly damage.

Easy to read silver dials and high contrast orange pointers combined with probably the most diverse gauge offering make this light weight race proven gauge a competition favorite..

Traditional incandescent lights illuminates across the perimeter of the dial

Key Features & Functions

Mechanical Temperature Monitoring

This gauge uses a direct mechanical temperature probe, providing:

• Instant, real-time readings
• No electrical delay
• Highly accurate temperature tracking

Because transmission temps can spike fast under load.

Designed for Transmission Fluid Temps

Built specifically to monitor:

• Automatic transmission fluid (ATF) temperature
• Heat buildup during towing or racing
• Thermal performance under load

Not just a generic temp gauge—this is purpose-built.

Auto Meter’s race proven mechanical instruments provide depended on accuracy at the same time as being easy to put in
No electrical system required for gauge operation – compatible with each and every street or race vehicle

2-1/16″ Standard Gauge Size

The 2-1/16 inch diameter ensures:

• Easy installation in pods or panels
• Compatibility with most setups
• Clean integration into your dash

Standard size, zero drama.

Ultra-Lite Series Styling

Classic performance look:

• Silver/aluminum-style dial
• High-contrast markings
• Clean, race-inspired appearance

Simple, functional, and easy to read.

Mechanical movements provide accuracy and sturdiness even within the harshest environments
Gauge kit includes 1/2″ NPT adapter, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation

Fast Response Needle Movement

Mechanical operation delivers:

• Immediate reaction to temperature changes
• Smooth, consistent readings
• Reliable feedback under load

Because transmission temps don’t rise slowly when you’re pushing it.

Why You Need This Auto Meter 4351 Ultra-Lite Transmission Gauge

Transmissions are expensive—and most people don’t monitor them until it’s too late.

The Auto Meter 4351 Transmission Temp Gauge gives you:

• Real-time transmission temperature monitoring
• Protection against overheating and fluid breakdown
• Better performance during towing or racing
• Longer transmission lifespan

Because rebuilding a transmission is not cheap… or fun.

Ideal Applications

• Automatic transmission builds
• Tow vehicles and trucks
• Drag and track cars
• Off-road and heavy-load setups
• Performance street builds

Final Verdict

The Auto Meter 4351 Ultra-Lite Mechanical Transmission Temperature Gauge is one of the most overlooked but important upgrades you can make.

It’s accurate, reliable, and helps you protect a critical part of your drivetrain.

Because when your transmission overheats… it doesn’t recover.