Our services
We cover the entire life cycle of Hatz Diesel engines – from sales through warranty and post-warranty service to the supply of spare parts for both older and current series.
Sales of Hatz engines
Sales of the entire current Hatz Diesel engine portfolio – Series B, D, F and H. Suitable for construction machinery, generators, agricultural and industrial equipment. We will help you choose the right engine for your application.
Service and repairs
Warranty and post-warranty service of Hatz engines. Fault diagnostics, general overhauls, replacement of worn parts and engine adjustment. We also repair the older Series G and L, for which a new engine is no longer available.
Spare parts
Genuine Hatz spare parts in stock and to order – filters, gaskets, injection components, belts, electrical parts. Fast availability minimises downtime of your machinery.
Technical support
Expert advice on choosing the right engine for your application. We will help you find the optimal solution for your project.
Engine replacement
Replacement of power units in machines and equipment. Complete engine overhauls, replacement of entire units including accessories. We extend the service life of your equipment.
Hydraulic pumps
Hatz engines with integrated hydraulic pumps for driving hydraulic systems. Compact and powerful solutions for construction and industrial applications.
Details →Send enquiries about new engines, repairs or spare parts to: hatz@davidservis.cz
Hatz engine series
Hatz manufactures Series B, D, F and H engines. For older series (G and L) we provide repairs and the supply of spare parts.
Currently manufactured series
Single-cylinder · air-cooled · 1.5–8.6 kW
Small, light, quiet diesel engines. Awarded the EUROMOT prize. Crankshaft optionally horizontal or vertical.
| Model | Power output (kW) | Displacement (cm³) |
|---|---|---|
| 1B20 | 1.5–3.4 | 243 |
| 1B30 | 3.2–4.6 | 347 |
| 1B40 | 4.0–6.6 | 462 |
| 1B50 | 5.5–8.6 | 517 |
Single-cylinder · air-cooled · direct injection · 7–11.2 kW
Robust single-cylinder diesel engines. Available in the SUPRA SILENT PACK variant with noise reduction of up to 90%.
| Model | Power output (kW) | Displacement (cm³) |
|---|---|---|
| 1D42 | 7.0 | 445 |
| 1D50 | 7.9 | 517 |
| 1D81 | 10.1 | 667 |
| 1D90 | 11.2 | 722 |
Three-cylinder · liquid-cooled · Stage V · 7.7–18.4 kW
Liquid-cooled series for the under-19 kW market — EU Stage V and US EPA T4f. Variants with electronic governor (E).
| Model | Power output (kW) | Displacement (cm³) |
|---|---|---|
| 3F30 | 7.7–15.8 | 952 |
| 3F35E | 9.0–18.4 | 1,102 |
| 3F45 | 11.9–18.4 | 1,318 |
| 3F45E | 11.9–18.4 | 1,318 |
3–4 cylinders · liquid-cooled · Common Rail · up to 63.7 kW
Robust industrial series for demanding applications. All models with Bosch Common Rail at 1,800 bar. Available in the SilentPack variant.
| Model | Power output (kW) | Displacement (cm³) |
|---|---|---|
| 3 cylinders — 1,464 cm³ | ||
| 3H50T | up to 18.4 | 1,464 |
| 3H50TI | 22.3–48.2 | 1,464 |
| 3H50TIC | 22.3–43.6 | 1,464 |
| 3H50TICD | 22.6–43.7 | 1,464 |
| 4 cylinders — 1,952 cm³ | ||
| 4H50N | 18.4–18.9 | 1,952 |
| 4H50TI | 28.7–63.7 | 1,952 |
| 4H50TIC | 28.7–55.4 | 1,952 |
| 4H50TICD | 31.0–55.4 | 1,952 |
Older series – repairs and spare parts
These series are no longer in production. We provide their service, repairs and the supply of genuine spare parts.
Two-cylinder · air-cooled · direct injection · 8–17 kW
Two-cylinder air-cooled diesel engines with direct injection. The 2G40 model is one of the most widely used Hatz engines in history – extremely durable and easy to service.
| Model | Power output (kW) | Displacement (cm³) |
|---|---|---|
| 2G30 | 8.0–11.5 | 912 |
| 2G40 | 9.8–17.0 | 997 |
2–4 cylinders · air-cooled · 15–48.8 kW
Air-cooled series with a unified cylinder 41 architecture. Power output increases with the number of cylinders on the same design base.
| Model | Power output (kW) | Displacement (cm³) |
|---|---|---|
| 2L41C | 15.0–24.4 | 1,716 |
| 3L41C | 23.2–36.8 | 2,574 |
| 4L41C | 31.3–48.8 | 3,432 |
fiPMG generators – a new era of power supply
The Hatz fiPMG (flywheel-integrated Permanent Magnet Generator) is a permanent magnet generator built directly into the engine flywheel. 315 mm shorter and 17 kg lighter than conventional solutions – with an efficiency above 85%. DC chargers and AC generators, an OEM kit or a complete Silent Pack.
🔋 DC battery chargers
PMDC models for 28 V or 56 V – ideal for hybrid construction machinery, cranes and platforms. Automatic start/stop via CAN bus (BMS). Consumption from 0.7 l/h.
OEM kit · BD 3000 Silent Pack
⚡ Diesel AC generators
230 V / 50 Hz or 120 V / 60 Hz. GD 3000 Silent Pack and GD 3200 Silent Pack RV (a special version for recreational vehicles with an auxiliary tank). Noise level of just 64.6 dB(A) @7 m.
OEM kit · GD 3000 · GD 3200 RV
⛽ Petrol AC generators
GP 2600 Silent Pack (2.6 kW, Honda GX160) and GP 6200 Silent Pack (6.2 kW, Honda GX390). Compact, lightweight (44 kg) and quiet – for applications where diesel is not suitable.
GP 2600 · GP 6200
Dometic generators
As an authorised Hatz representative for the Czech Republic, we provide sales, warranty service and the supply of spare parts for the entire Dometic generator portfolio.
⚡ TEC series
Compact generators for mobile and stationary applications. The series includes models with electric start (EV) and diesel power (D).
| Model | Note |
|---|---|
| TEC 29EV | Electric start |
| TEC 30EV | Electric start |
| TEC 40D | Diesel-powered |
| TEC 60EV | Electric start · from 10/2025 |
🔋 Traveller series
Portable generators of the Traveller series intended for off-road use, caravans, boats and backup power supply.
| Model | Power output |
|---|---|
| Traveller 2500H | 2,500 W |
| Traveller 4000H | 4,000 W |
Hatz takes over the complete warranty service and support for all Dometic products sold worldwide. We ensure the availability of spare parts for the entire portfolio. More information about the product range can be found at hatz.com.
Hatz water pumps
Diesel-driven Hatz trash pumps for pumping water, saline solutions and chemicals. Independent operation without an electrical supply.
💧 S2-K36P
Pumping fresh water, salt water and chemicals
| Flow rate | 27,000 l/h |
| Use | Fresh water · salt water · chemicals |
💧 C2-G46
A more powerful trash pump for fresh water
| Flow rate | 43,100 l/h |
| Use | Fresh water |
💧 C3-G68
The largest model for freshwater applications
| Flow rate | 68,100 l/h |
| Use | Fresh water |
All models are classified as trash pumps (Schmutz-Wasserpumpe) — suitable for pumping water containing sediment or impurities. Enquire about a specific model at hatz@davidservis.cz.
The most significant applications of Hatz engines
Hatz engines power the machinery of leading global manufacturers. Their reliability is proven in the toughest conditions.
Full overview of customers and applications
Ammann – vibratory plates and rammers
Czech Army – battery charging units
Atmos – diesel generators
Bagela – asphalt recyclers
Cedima – joint-cutting saws
Dynapack – vibratory plates and rammers
Endress – diesel generators
HAMM – vibratory rollers
Kaeser – compressors
Kärcher – high-pressure cleaners
Kobit – road repair and construction machinery
Koller – joint-cutting saws
Laski – stump chippers
Liebherr – hydraulic power units
Mannesmann – compressors
Menzi Muck – walking excavators
NTC – joint-cutting saws, vibratory plates
Schäffer – municipal equipment
Schmidt – municipal equipment
Strassmayer – road repair machinery
Šálek – four-wheel mini tractors
Trilety – sweepers
Vibromax – vibratory plates and rammers
Wacker Neuson – vibratory plates and rammers
Weber – vibratory plates and rammers
Zettlemeyer – wheel loaders
Zodiac Equipment – aircraft boarding stairs
About us
We are a Czech company based in České Budějovice. Since 1995, as the exclusive distributor, we have been supplying customers in the Czech Republic with highly reliable HATZ diesel engines, including spare parts, and providing service.
Hatz Diesel GmbH, headquartered in Ruhstorf in Bavaria, is one of the largest global manufacturers of diesel engines up to 60 kW. More than a century of tradition and the use of state-of-the-art manufacturing technologies guarantee a combination of excellent performance parameters with low fuel consumption and emissions that meet the strictest European standards.
We provide overhauls of Hatz engines and service repairs of all kinds at our workshop or directly at the customer's site. Send enquiries about new engines, repairs or spare parts to hatz@davidservis.cz.
Why choose us?
Engines supplied
More than 10,000 Hatz engines supplied to the Czech market over the course of our cooperation.
Tradition since 1880
The tradition of the German family company Hatz – more than 140 years of experience in engine manufacturing.
Years of practice in the Czech Republic
Qualified service technicians with many years of experience with Hatz engines.
Flexible cooperation
Flexible cooperation with the nearby Hatz headquarters near Passau, Germany.
Contact
Send us an enquiry or simply give us a call.
Write to us
Contact details
Čechova 1622
370 01 České Budějovice, Czech Republic
VAT ID (DIČ): CZ62525000
EUR: 31859029/2700