Voltage Gauge for Stock Cluster | 66-77 Bronco, 61-66 Ford Truck SKU: 6026

Voltage Gauge for Stock Cluster | 66–77 Bronco, 61–66 Ford Truck

Upgrade the stock dash on your 1966–77 Ford Bronco or 1961–66 Ford Truck with this OE-look Voltage Gauge, designed to fit directly into the stock instrument cluster by replacing the original ALT gauge. This upgrade gives you accurate, real-time voltage monitoring - something the factory gauge simply couldn’t do. It fits perfectly into the stock gauge housing with no modifications, giving you a clean, factory appearance with modern function.

• Direct Replacement — Fits into the stock cluster, replacing the original ALT gauge without any modifications

• Accurate Electrical Monitoring — Displays real-time voltage for a clearer, safer readout of your charging system health

• Easy Install — Simple wiring - just connect to switched ignition power and ground

• OE Look, Modern Function — Matches the style of the original cluster while providing updated accuracy

• Gauge Style Clusters Only — This gauge is not compatible with Ford truck clusters that used warning light indicators

Fitment:

• 1966–77 Ford Bronco

• 1961–66 Ford F100, F250, F350 trucks with gauge-style clusters

Note: Will not work with clusters that use light indicator gauges. For gauge-style clusters only.

Why This Voltage Gauge Is a Must-Have Upgrade

The factory ALT gauge (ammeter) in these classic Broncos and Ford trucks isn’t just outdated - it’s a known weak point. That ammeter sends the full charging system amperage directly through the dash, meaning every amp your alternator pushes runs through thin wires and fragile connections behind the cluster. Over time, this leads to inaccurate readings, fried wires, melted terminals, or worse - an electrical fire.

A voltage gauge does the job smarter and safer. It reads system voltage with just a simple ignition signal and a ground - no high-current load passing through the dash. You get an instant read on your charging system’s health. Low voltage? You’ll know before you get stranded. Overcharging? You’ll catch it before you cook your battery. It’s a safer, smarter upgrade that looks factory but functions like a modern gauge.

Ditch the outdated ammeter - our voltage gauge fits your stock cluster for accurate, safe monitoring of your 66-77 Bronco or 61-66 Ford truck electrical system.