John Deere 820 Tractor
The US-built John Deere 820 is the 1956-1958 Waterloo standard-tread two-cylinder diesel, not the later German-built utility tractor that shared its model number. It is a distinctive 67 to 75.6 belt-hp classic best suited to collectors and period-appropriate field work.
John Deere 820 specifications
| Production years | 1956-1958 |
|---|---|
| Engine | John Deere 470.7 cu in (7.7L) two-cylinder diesel |
| Power | 67 hp belt, claimed for Green Dash; 75.6 hp belt, claimed for Black Dash; 67.15 hp drawbar, tested |
| Transmission | 6-speed unsynchronized gear |
| Weight, approximate | 7,850-8,600 lb |
| Fuel type | Diesel |
| Drive | 2WD |
| PTO | Independent 540 rpm |
What the 820 is used for
The 820 can perform traditional drawbar work with suitable implements and is a standout in vintage demonstrations, parades, and collections. Its large, slow-speed two-cylinder diesel delivers a very different operating experience from later multi-cylinder tractors.
It is not the most convenient choice for frequent modern utility work. The gasoline pony motor used for starting, manual steering on many examples, and age-specific service needs should be part of the ownership plan.
Why the John Deere 820 stands out
The Waterloo-built 820 was Deere's final large two-cylinder diesel standard-tread tractor line before the New Generation era. Early Green Dash and later Black Dash versions differ, with the Black Dash receiving changes and a higher claimed belt-horsepower rating.
Buying a used John Deere 820
First confirm that the tractor is the Waterloo-built 1956-1958 diesel, rather than the later Mannheim 820 utility model. Inspect pony-motor starting equipment, diesel starting procedure, clutch, governor response, transmission operation, cooling system, and the condition of the two-cylinder engine's fuel and injection components. Determine whether it is Green Dash or Black Dash before comparing specifications or sourcing restoration parts.
John Deere 820 frequently asked questions
Why do John Deere 820 specifications vary so much?
John Deere used the 820 designation on more than one tractor. This guide covers the 1956-1958 Waterloo-built two-cylinder diesel.
What is the difference between Green Dash and Black Dash 820 tractors?
Green Dash tractors were the earlier version. Black Dash tractors were the later improved version and carried a 75.6-hp claimed belt rating versus 67 hp for Green Dash.
How is the 820 diesel started?
The Waterloo 820 diesel uses a gasoline pony motor to start the main diesel engine.
Specifications are commonly cited figures for general reference; exact figures vary by year and serial number, so confirm against TractorData.com and the machine's records. Values and prices of used tractors vary by condition and region. Page updated Aug 4, 2026.