Heinrich Lanz D 6500
Built: 1929–1935 · Series: HR 5
More machines from model year 1929
Not the right version? The data comes from vehicle registers holding many near-identical versions side by side. Photograph the data plate — we read make and type from it. Open the scanner e-mail address required
Heinrich Lanz HR 5 – the single-cylinder Bulldogs D 6500, D 6510 and D 6515 from Mannheim: 11 kW, 500 to 540 rpm, multi-fuel operation
The HR 5 likewise belongs to the Lanz Bulldog ranges from Mannheim with the large, slow-running single-cylinder two-stroke engine that made Heinrich Lanz famous from 1921. The D 6500, D 6510 and D 6515 types share a uniform output of 11 kW and multi-fuel operation but differ markedly in weight and overall height.
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The register lists here 3 versions with a uniform 11 kW from the single-cylinder engine at rated speeds of 500 to 540 rpm. Unladen weights range from 2,650 to 3,640 kg, lengths from 3,030 to 3,130 mm, width is uniformly 1,945 mm and heights range from 1,335 to 2,200 mm.
With their high unladen weight against comparatively moderate power, Bulldogs such as the HR 5 stood for reliability and pulling power rather than speed; they worked on mid-size and larger farms, where cheap multi-fuel operation lowered running costs against pure diesel engines.
On a used example, the condition of the hot bulb and cylinder, tightness of the cooling, condition of the flywheel, and rust on chassis and mudguards after decades of use count; parts are available through specialist Lanz Bulldog workshops and vintage-machinery dealers.
The Lanz Bulldog's hot-bulb engine ignites the fuel-air mixture on a glowing head, preheated from outside with a blowtorch, rather than by spark plug or injection pressure; this principle tolerated variable fuel quality and enabled the machines' characteristic multi-fuel operation on crude oil, diesel or even vegetable oil. The single-speed 540 rpm PTO was the rule in this early period.
Sources: SpecCodex register, model data: Heinrich Lanz HR 5
Technical data
Engine
| Fuel | Vielstoffcorrect |
|---|---|
| Power | 15 hp (11 kW)correct |
| Rated speed | 500/540 rpmcorrect |
| Cylinders | 1correct |
| Bore | 225 mmcorrect |
| Stroke | 260 mmcorrect |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 3,030 mmcorrect |
|---|---|
| Width | 1,945 mmcorrect |
| Height | 1,335 mmcorrect |
| Wheelbase | 1,865 mmcorrect |
| Ground clearance | 320 mmcorrect |
| Unladen weight | 2,650 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 3V/1Rcorrect |
| Front tyres | 900 x 150correct |
| Rear tyres | 1.150 x 300correct |
| Top speed | 5.6 km/hcorrect |
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|
Where this model stands
Power-to-weight ratio: 4.2 kW/t (11 kW / 2.6 t)
Power class: Compact (< 40 hp)
Stronger than 3% of the tractors in the register — out of 15,663 models with a stated power figure.
Calculated from the documented figures above — not a rating.
Frequently asked questions
How much power does the Heinrich Lanz D 6500 have?
The Heinrich Lanz D 6500 delivers 15 hp.
How much does the Heinrich Lanz D 6500 weigh?
The unladen weight is 2,650 kg.
What engine does the Heinrich Lanz D 6500 have?
1 cylinders, Vielstoff.
How fast does the Heinrich Lanz D 6500 go?
Top speed is 5.6 km/h.
What are the dimensions of the Heinrich Lanz D 6500?
3,030 mm × 1,945 mm × 1,335 mm.
When was the Heinrich Lanz D 6500 built?
Production years: 1929–1935.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Check the weights in the papers against the figures here — attachments change them.
- Check front and rear tyre sizes: mismatched pairs strain the drivetrain.
- Shift the gearbox cold and warm — jumps only show up at temperature.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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This page carries 20 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
Sources: [1]
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