Keep your commercial rig or vintage heavy haul restoration completely period-correct with this genuine Engler Instrument Co. mechanical hubodometer. Manufactured in Jersey City, New Jersey, Engler was the industry gold standard for independent, tamper-proof mileage tracking across trucking fleets, trailers, and buses.
 
This driveless unit features a rugged heavy-duty housing, a high-contrast black dial face with sharp white and orange typography, and a clear 7-digit mechanical odometer readout currently showing just 10,720 original miles.
 
⚙️ Technical Details & Calibration:
This specific unit is factory-calibrated for standard commercial truck and trailer tire sizes. It precisely measures mileage based on the specific revolutions per mile of:
10.00 x 20 Standard Tread Tires
11 - 22.5 Standard Tread Tires
📝 Specifications:
Manufacturer: Engler Instrument Co. (Jersey City, NJ, USA)
Type: Mechanical Driveless Hubodometer
Mounting: Wheel Hub Center Mount
Readout: 7-Digit Analog Counter (Miles)
 
Still in original box