2.95×2.87 inches | 75 x 73 mm | 3.35×3.54 inches | 85 x 90 mm
Compression
18:1
Rated RPM
2000 | 1850
Massey Ferguson 821 Fuel, Cooling, Starting & Service Specs
Starter volts
12
Firing order
1-3-4-2
Massey Ferguson 821 Horsepower Comparison Charts
Engine horsepower comparison
This model
20 hp
Average
35 hp
Low
15 hp
High
60 hp
Displacement comparison
This model
78.7 ci
Average
110 ci
Low
50 ci
High
180 ci
Rated RPM comparison
This model
2,000 rpm
Average
2,400 rpm
Low
1,800 rpm
High
3,000 rpm
Benchmarks use practical low, average and high ranges for the compact and small utility tractor category. Use the operator manual and actual engine/tractor configuration before sizing implements or judging working power.
Massey Ferguson 821 Extra Engine Notes
Power
20 hp | 14.9 kW | 17.75 hp | 13.2 kW
Massey Ferguson 821 Horsepower FAQ
How much horsepower does the Massey Ferguson 821 have?
The listed engine output is 20 hp, below the 35 hp benchmark average. That is a lower-power result, so the smarter match is lighter implements and jobs that do not demand more than about 20 hp.
How big is the Massey Ferguson 821 engine?
The engine displacement is 78.7 ci, below the 110 ci benchmark average. Smaller displacement usually means less engine size behind each horsepower number.
What rpm is the Massey Ferguson 821 rated at?
The rated speed is 2,000 rpm, below the 2,400 rpm benchmark average. A lower 2,000 rpm rating can feel more relaxed, but torque and gearing decide the real work feel.
Official information note
Horsepower and engine specs can vary by year, market, engine option, fuel system, test standard and tractor configuration. Check the operator manual, spec plate, parts book and official masseyferguson.com website before buying parts, sizing implements or making repair decisions.
