Hela D 315
Built: 11/1956–9/1960 · Series: D 15
More machines from model year 1956
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Hela D 15 (D 315): water-cooled single-cylinder diesel tractor with 1,082 cc, 11.4 kW and 1,260 kg from November 1956 to September 1960
Small tractors like the D 315 formed a distinct class of agricultural machinery in the late 1950s, built for smaller and mid-sized farms that did not need, or could not afford, a large, expensive tractor. A water-cooled single-cylinder diesel engine running at comparatively high speed was typical of this class.
Read on 3 more paragraphs
The D 315 is powered by a water-cooled single-cylinder diesel engine of 1,082 cc, producing 15.5 hp, or 11.4 kW, at 1,980 rpm. At a weight of 1,260 kg, a length of 2,600 mm, a height of 1,300 mm, a width of 1,460 mm and a wheelbase of 1,780 mm, the machine reaches a top speed of 20 km/h.
At just 1,300 mm high, the D 315 was noticeably low-built, which lowered the centre of gravity and improved stability on slopes. Its comparatively high speed of almost 2,000 rpm for a single cylinder allowed compact, light engine components while still delivering sufficient output for a small tractor of this weight class.
When buying such a small tractor, the condition of the injection pump and injectors matters, since they determine the smoothness of this high-revving single cylinder, along with the radiator and water pump for leaks. The gearbox, clutch and brakes should be checked for wear; spare parts for this small and rare model year are now only available from specialist suppliers.
Sources: SpecCodex-Register: Kennwerte des Modells Hela D 315
Technical data
Engine
| Fuel | dieselcorrect |
|---|---|
| Power | 15.5 hp (11.4 kW)correct |
| Rated speed | 1,980 rpmcorrect |
| Cylinders | 1correct |
| Displacement | 1,082 cm³correct |
| Cooling | water-cooledcorrect |
Dimensions and weights
| Length | 2,600 mmcorrect |
|---|---|
| Width | 1,460 mmcorrect |
| Height | 1,300 mmcorrect |
| Wheelbase | 1,780 mmcorrect |
| Ground clearance | 380 mmcorrect |
| Unladen weight | 1,260 kgcorrect |
Drivetrain and chassis
| Drive | rear-wheel drivecorrect |
|---|---|
| Gearbox | 6V/1R-manual gearbox gearboxcorrect |
| Forward gears | 6correct |
| Reverse gears | 1correct |
| Front tyres | 5, 00-16correct |
| Rear tyres | 8-24correct |
| Top speed | 20 km/hcorrect |
Working data
| Fuel tank capacity | 28 lcorrect |
|---|
Origin and approval
| Construction | unit construction (no separate frame)correct |
|---|---|
| Units built | 311correct |
Where this model stands
Power-to-weight ratio: 9 kW/t (11 kW / 1.3 t)
Power class: Compact (< 40 hp)
Stronger than 4% 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 Hela D 315 have?
The Hela D 315 delivers 15.5 hp.
How much does the Hela D 315 weigh?
The unladen weight is 1,260 kg.
What engine does the Hela D 315 have?
1 cylinders, 1,082 cm³ displacement, Diesel.
How fast does the Hela D 315 go?
Top speed is 20 km/h.
What are the dimensions of the Hela D 315?
2,600 mm × 1,460 mm × 1,300 mm.
When was the Hela D 315 built?
Production years: 11/1956–9/1960.
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.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 24 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.