Standard TreadPerformance profile
Lanz Bulldog HR4
The Lanz Bulldog HR4 is a classic 2-wheel drive tractor known for its simple design and reliable performance. It features a gear transmission with 3 forward and 3 reverse gears, giving farmers good control over their work speed. The heart of this tractor is its unique single-cylinder engine made by Lanz. This big engine runs on oil and is cooled by liquid, using a special thermosyphon system. It has a large displacement of 628.5 cubic inches, with a bore of 8.858 inches and a stroke of 10.24 inches. The engine operates at a slow 500 rpm but still produces a solid 28 horsepower. This makes the Bulldog HR4 a strong worker for its time, capable of handling tough farm tasks. The tractor also comes with a category III hitch, allowing it to work with a wide range of farm implements.
ManufacturerLanzPower28 hpEngine1-cylTransGear
Image not recorded
Quick specs
- Category
- Standard Tread
- Engine Power Output
- 28hp
- Transmission
- Gear
At a glance
How the Bulldog HR4 compares
vs. Standard Tread medianDistribution
Engine Power (hp)
Across all Standard Tread tractors
28 hp · 27th
This model
12
Median 45 hp
102
This modelStandard Tread tractorsMediann = 121
The Bulldog HR4 ranks at the 27th percentile for engine power among recorded standard tread tractors.
Overview
About the Lanz Bulldog HR4
The Lanz Bulldog HR4 is a classic 2-wheel drive tractor known for its simple design and reliable performance. It features a gear transmission with 3 forward and 3 reverse gears, giving farmers good control over their work speed. The heart of this tractor is its unique single-cylinder engine made by Lanz. This big engine runs on oil and is cooled by liquid, using a special thermosyphon system. It has a large displacement of 628.5 cubic inches, with a bore of 8.858 inches and a stroke of 10.24 inches. The engine operates at a slow 500 rpm but still produces a solid 28 horsepower. This makes the Bulldog HR4 a strong worker for its time, capable of handling tough farm tasks. The tractor also comes with a category III hitch, allowing it to work with a wide range of farm implements.
Full specifications
Every recorded spec
General
| Manufacturer | Lanz |
|---|---|
| Model | Bulldog HR4 |
| Category | Standard Tread tractor |
| Type | 2WD |
Engine
| Make | Lanz |
|---|---|
| Power | 28hp |
| Cylinders | 1 |
| Displacement | 628.5ci |
| Bore | 8.86in |
| Stroke | 10.24in |
Transmission
| Type | Gear |
|---|---|
| Forward gears | 3 |
| Reverse gears | 3 |
Chassis & drive
| Chassis | 2WD |
|---|---|
| Drive | 2WD |
Head to head
Bulldog HR4 vs. Standard Tread median
How the Lanz Bulldog HR4 compares to other Standard Tread tractors
| Spec | This model | Standard Tread median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 28 hp | 45 hp | -38% | 27th |
| Engine Displacement | 629 ci | 382 ci | +65% | 80th |
| Cylinders | 1 | 4 | -75% | 7th |
| Forward Gears | 3 | 4 | -25% | 39th |
Medians and percentiles are computed from the standard tread tractors in our database with a recorded value for each spec (sample sizes 121–367 models).
Compare to tractors with similar specs
Commonly compared Lanz tractors
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| Lanz Bulldog D2816 | 28 hp | — | — | Compare → |
| Lanz Bulldog HR2 | 28 hp | — | — | Compare → |
| Lanz Bulldog D7500 | 24.5 hp | 4,850 lb | — | Compare → |
| Lanz Bulldog D7506 | 24.5 hp | 4,982 lb | — | Compare → |
| Lanz Bulldog D7507 | 24.5 hp | — | — | Compare → |
Commonly compared tractors with similar horsepower from other brands
| Tractor | Engine Power | Operating Weight | Years | Compare |
|---|---|---|---|---|
| AGCO ST28A | 28.4 hp | 2,400 lb | — | Compare → |
| AGCO ST30x | 28.4 hp | 1,984 lb | — | Compare → |
| Allis Chalmers D272 | 27.5 hp | 2,060 lb | — | Compare → |
| Ascot Universal 300 | 27.5 hp | 3,800 lb | — | Compare → |
| Allis Chalmers D10 | 28.57 hp | 2,700 lb | 1959–1967 | Compare → |
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FAQ
Common questions
How much horsepower does the Lanz Bulldog HR4 have?
The Lanz Bulldog HR4 produces 28 hp from its 1-cylinder engine. Engine displacement is 628.5 ci.
What transmission is in the Lanz Bulldog HR4?
Transmission on the Lanz Bulldog HR4 is Gear, with 3 forward speeds.
What three-point hitch category does the Lanz Bulldog HR4 use?
The Lanz Bulldog HR4 has a Category III three-point hitch.
What maintenance does the Lanz Bulldog HR4 require?
Like any tractor, the Lanz Bulldog HR4 needs periodic engine oil and filter changes, hydraulic fluid checks, and regular greasing and inspection. The owner's manual lists the manufacturer's recommended service intervals.