John Deere 620 Overview
The John Deere 620 was built from 1956-1958. Recorded details include engine displacement of 302.9 ci 5.0 L, gear count of 6 forward and 1 reverse, rear PTO speed of 540, hydraulic pump flow of 8.9 gpm 33.7 lpm, fuel capacity of 20.5 gal (all-fuel) 77.6 L. Together, those figures give owners a practical starting point when comparing engine, driveline, PTO, hydraulic, capacity, and chassis details for this particular tractor. They also provide a useful reference for routine checks, repairs, service planning, and equipment matching.
John Deere 620 Quick Answers
- Production years1956-1958
- Engine displacement302.9 ci 5.0 L
- Transmission6 forward and 1 reverse
- Rear PTO540
Engine and Power
The listed engine details include engine displacement of 302.9 ci 5.0 L.
Gasoline engine
| Displacement | 302.9 ci 5.0 L |
|---|---|
| Bore Stroke | 5.50x6.375 inches 140 x 162 mm |
| Rated Rpm | 1125 |
| Engine Oil Capacity | 8 qts 7.6 L |
| Coolant Capacity | 26 qts 24.6 L |
Engine option 2
| Displacement | 302.9 ci 5.0 L |
|---|---|
| Bore Stroke | 5.50x6.375 inches 140 x 162 mm |
| Rated Rpm | 1125 |
| Engine Oil Capacity | 8 qts 7.6 L |
LP-gas engine
| Displacement | 302.9 ci 5.0 L |
|---|---|
| Bore Stroke | 5.50x6.375 inches 140 x 162 mm |
| Rated Rpm | 1125 |
| Engine Oil Capacity | 8 qts 7.6 L |
Manufacture years
Transmission
The transmission record notes gear count of 6 forward and 1 reverse.
6-speed unsynchronized gear
| Type | unsynchronized gear |
|---|---|
| Gears | 6 forward and 1 reverse |
| Clutch | mechanical dry disc |
PTO and Hitch
PTO and hitch details include rear PTO speed of 540.
Rear PTO type
Rear hitch
Hydraulics
The hydraulic record lists hydraulic pump flow of 8.9 gpm 33.7 lpm.
Pressure
Pump flow
Accuracy Note
Tractor specifications can vary by year, region, factory configuration, installed equipment, and later repairs. Match serial range, engine, transmission, PTO setup, and model code before ordering parts or doing service work.