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Lanz Bulldog D7521 vs Lanz HR4 Bulldog
Verdict: Lanz Bulldog D7521 vs Lanz HR4 Bulldog
The Lanz Bulldog D7521 and the Lanz HR4 Bulldog are both tractors — here is how they stack up on the figures that matter. Lanz HR4 Bulldog leads on rated power with 28 hp against 25 hp. Lanz Bulldog D7521 is the newer design (1935 vs 1928). In short: choose the Lanz HR4 Bulldog for outright pulling power, or the Lanz Bulldog D7521 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
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Fit & specs
Lanz
62
Fit score
Best match
Clear
Lanz
62
Fit score
Best match
Clear
Rated power
25 hp
28 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
LanzReference
LanzReference
liquid-cooledReference
liquid-cooledReference
Drive
2WDReference
—
Total built
—
180Reference
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
—
Engine
Engine
18.3 kWReference
20.9 kWReference
Displacement
4.7 LReference
10.3 LReference
Bore/Stroke
170 x 210 mmReference
225 x 260 mmReference
Power
18.3 kWReference
20.9 kWReference
Rated RPM
850Reference
500Reference
Drawbar (claimed)
—
16.4 kWReference
Cooling system
—
thermosyphonReference
Transmission
Transmission
gearReference
—
Gears
6 forwardReference
3 forward and 1 reverseReference
Type
—
gearReference
HR4 Serial Numbers
1928
—
75001Reference
Final
—
75180Reference
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.