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B.F. Avery A vs Lanz Bulldog D7531
Verdict: B.F. Avery A vs Lanz Bulldog D7531
The B.F. Avery A and the Lanz Bulldog D7531 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 25 hp. B.F. Avery A is the newer design (1943 vs 1935). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
B.F. Avery
62
Fit score
Best match
Clear
Lanz
62
Fit score
Best match
Clear
Rated power
25 hp
25 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
B.F. AveryReference
LanzReference
liquid-cooledReference
liquid-cooledReference
Drive
—
2WDReference
Engine
Belt (claimed)
18.6 kWReference
—
Plows
2 (14-inch)Reference
—
Displacement
2.0 LReference
4.7 LReference
Bore/Stroke
79 x 102 mmReference
170 x 210 mmReference
Rated RPM
1450Reference
850Reference
Engine
—
18.3 kWReference
Power
—
18.3 kWReference
Transmission
Type
unsynchronized gearReference
—
Gears
3 forward and 1 reverseReference
6 forwardReference
Transmission
—
gearReference
A Serial Numbers
1943
1A000Reference
—
1944
1A1498Reference
—
1945
4A786Reference
—
1946
7A305Reference
—
1947
9A866Reference
—
1948
13A247Reference
—
1949
17A456Reference
—
1950
19A366Reference
—
Final
20A114Reference
—
Capacities
Diameter
21 cmReference
—
Width
16 cmReference
—
Speed
315.47 meters/minReference
—
Variants
7521
—
traffic model for road operationsReference
7531
—
express model with high-speed gearingReference
D7500
—
3-speedReference
D7506
—
6-speedReference
D7507
—
6-speed, with starterReference
D7511
—
combination for both field and road operations, front-axle springsReference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.