Description
When your old tach starts acting up or goes dark, you lose one of your most important gauges. Whether you’re trying to set the right PTO speed or just keep an eye on engine RPM during heavy work, a working tachometer keeps you in control. This replacement tachometer brings your dash back to life with that classic Allis Chalmers look.
What You’re Getting
- Bright white face with authentic Allis Chalmers logo for that original equipment appearance
- Accurate RPM readings to help you dial in the right engine speed for any job
- Drop-in replacement that fits the original mounting holes and wiring connections
- Quality construction that’ll handle the vibration and temperature swings of farm work
Built for Classic Allis Iron
This tachometer was made for the workhorse tractors that built American agriculture. Whether you’re running a D14 or D15 on daily chores or keeping a D17 gas tractor running for field work, this gauge fits right in. It also works on I-40 and I-400 industrial models that might be doing loader work or other heavy-duty tasks around the farm.
Made to Last
Vintage Allis tractors are known for their durability, and this tachometer is built to match. The internal mechanism is designed to handle the constant vibration these old machines produce, while the face stays clear and readable even after years of sun and weather exposure through the cab glass.
Installation Notes
This is a direct replacement for the original tachometer—no modifications needed. Just disconnect the old unit, remove the mounting screws, and install the new one. The wiring connects the same way as the original, so you’ll be back up and running in minutes.




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