Lanz D 6515
Built: 1929–1935 · Series: HN 5 - Reihe
More machines from model year 1929
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Lanz HN 5 series – the D 6515: a multi-fuel single-cylinder engine producing 35 hp, a low overall height of 1,595 mm and a 3,640 kg weight from the early 1930s
Lanz, in full Heinrich Lanz AG, was based in Mannheim. The D 6515 of the HN 5 series was built from 1929 to 1935, placing it in the same era as the company's early Bulldog series, with which it shares thermosyphon-cooled, multi-fuel single-cylinder technology.
Read on 3 more paragraphs
The D 6515 runs a thermosyphon-cooled single-cylinder engine on multiple fuels and produces 35 hp at 540 rpm. The machine weighs 3,640 kg, reaches 16 km/h, and with an overall height of only 1,595 mm against a length of 3,130 mm and a width of 1,945 mm, it sits strikingly low, a trait typical of the early horizontal Lanz engines.
The low overall height results from the horizontally mounted single-cylinder engine, which keeps the machine's centre of gravity low and improves stability on uneven ground. Multi-fuel capability allowed the engine to run on a range of fuels, including lower-grade ones, while the low speed of 540 rpm combined with a large flywheel delivered a high, even torque for heavy draught work.
When buying such an old multi-fuel single-cylinder engine, the condition of the pre-combustion chamber and ignition arrangement matters, since matching spare parts are barely available new any more. The thermosyphon cooling needs an undisturbed, deposit-free circuit, and the flywheel, clutch and frame should be checked for cracks after decades of possible use.
Sources: SpecCodex-Register: Kennwerte des Modells D 6515
Technical data
Engine
| Fuel | Vielstoffcorrect |
|---|---|
| Power | 35 hpcorrect |
| Rated speed | 540 rpmcorrect |
| Cylinders | 1correct |
| Cooling | Thermosyphonkühlungcorrect |
Dimensions and weights
| Length | 3,130 mmcorrect |
|---|---|
| Width | 1,945 mmcorrect |
| Height | 1,595 mmcorrect |
| Wheelbase | 1,864 mmcorrect |
| Unladen weight | 3,640 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 3V / 1Rcorrect |
| Front tyres | 770 x 135 Vollgummicorrect |
| Rear tyres | 1060 x 300 Vollgummicorrect |
| Top speed | 16 km/hcorrect |
Where this model stands
Power-to-weight ratio: 7.1 kW/t (26 kW / 3.6 t)
Power class: Compact (< 40 hp)
Stronger than 21% 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 Lanz D 6515 have?
The Lanz D 6515 delivers 35 hp.
How much does the Lanz D 6515 weigh?
The unladen weight is 3,640 kg.
What engine does the Lanz D 6515 have?
1 cylinders, Vielstoff.
How fast does the Lanz D 6515 go?
Top speed is 16 km/h.
What are the dimensions of the Lanz D 6515?
3,130 mm × 1,945 mm × 1,595 mm.
When was the Lanz D 6515 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 15 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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Sources: [1]
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.