Allis Chalmers 5020 Overview

The Allis Chalmers 5020 was built from 1977-1985. Recorded details include engine displacement of 77.1 ci 1.3 L, rear PTO speed of 540, hydraulic system of open center, fuel capacity of 7 gal 26.5 L, listed weight of 1900 to 2150 pounds. 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.
Allis Chalmers 5020 Quick Answers
- Production years1977-1985
- Engine displacement77.1 ci 1.3 L
- Rear PTO540
- Hydraulicsopen center
Engine and Power
The listed engine details include engine displacement of 77.1 ci 1.3 L.
Diesel engine
| Displacement | 77.1 ci 1.3 L |
|---|---|
| Bore Stroke | 3.62x3.74 inches 92 x 95 mm |
| Rated Rpm | 2500 |
| Coolant Capacity | 5.3 qts 5.0 L |
Manufacture years
PTO and Hitch
PTO and hitch details include rear PTO speed of 540.
Rear PTO
Rear PTO type
Engine RPM
Rear hitch
Hydraulics
The hydraulic record lists hydraulic system of open center.
Type
Capacity
Pump flow
Fluids, Battery, and Service Facts
Service-related details include fuel capacity of 7 gal 26.5 L.
Fuel tank
Engine oil capacity
Hydraulic system
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.