Silent power pack

Hatz Diesel presents an industrial four-cylinder with sound insulation

Powerful, but gentle – this is demonstrated by Hatz and their four-cylinder diesel engine from the H-series with the newly developed Silent Pack.

The state of the art Hatz 4H50TIC diesel unit performs up to 55 kilowatts at a maximum torque of 240 newton meters and complies with all current norms and requirements, such as EU Stage IIIB or US EPA Tier 4 final. In connection with the insulation, specially developed for this engine, the Hatz 4H50TIC Silent Pack reaches a reduction of the noise emission by 4 decibel despite the cooler fan. Therefore the engine is 60 per cent less noisy compared to the non-capsulated Open Power Unit (OPU).

Universal use

The liquid-cooled diesel engines of the Hatz H-series are the more compact, lightweight and economical engines of their class. All the advantages of the non-capsulated Hatz four-cylinder diesel engine are the same for the insulated Hatz 4H50TIC with Silent Pack. During the development of the Silent Pack version it was very important for the engineers to keep the installation dimensions as small as possible and to keep the engine access for example for maintenance work. There is also a special flexibility for the world-wide operation. The high release temperature is identical to the non-capsulated version and the turbo charging gives enough buffer for applications in altitudes.

The sound insulation of the Hatz 4H50TIC Silent Pack is also an efficient weather and contact protection. So this engine may also be operated in a machine where the diesel unit is open fitted.

Integrated plug-and-play solution

The Hatz Open Power Unit (OPU) plug-and-play solution, which is also the base for the Hatz 4H50TIC Silent Pack, is ideal for equipment manufacturers who need complete ready to install engines. The main application areas are for example hydraulic lifts, hydraulic power units, forestry machinery, drilling rigs and stationary applications such as pumps and generators. Due to the integrated and optimised specification of radiator, tubing and wiring of electronics, the Hatz OPU concept provides a tremendous ease of installation.

Value for money, silent and retrofit

The Hatz plug-and-play 4H50TIC Silent Pack is a system which is reasonably priced and tested by the engine manufacturer sold by the Hatz sales and service net in 120 countries worldwide. In addition to the complete package, Hatz also offers the Silent Pack as retrofit.

Technical Data


Hatz 4H50TIC OPU

Hatz 4H50TIC Silent Pack


Liquid-cooled four-cylinder 4 stroke diesel engine
with exhaust-gas turbo charger, intercooler and
diesel oxidation catalyst


(only fuel supply, control box and battery necessary)


28.7 to 55.0 kW
39.0 to 74.8 hp

Torque max.

240 Nm

Injection system

Bosch Common-Rail-System OHW with 1,800 bar

Emission regulations

EPA Tier 4 final

Noie emissions
(Full load, 2800 rpm)

80 dB(A) 7 m distance
93 dB(A) 1 m distance

76 dB(A) 7 m distance
88 dB(A) 1 m distance


500 hours standard intervall

Dimensions (W x H x D)

927 x 699 x 878 mm
36.5 x 27.5 x 34.6 in

988 x 803 x 925 mm
38.9 x 31.6 x 36.7 in


255 kg
562 lb

360 kg
794 lb

Download press release 4H50TIC Silent Pack

ZIP - 1.9 Mb
Stephan Gritsch

Stephan Gritsch

Marketing Communications Team Leader, Motorenfabrik Hatz GmbH & Co. KG

Elena Lechner

Elena Lechner

Corporate Communications, Motorenfabrik Hatz GmbH & Co. KG

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About Motorenfabrik Hatz GmbH & Co. KG

At Hatz, we create benefit-driven solutions worldwide. As a strong partner, we enable machine manufacturers and operators to master their core tasks more easily and efficiently. Hatz is a renowned manufacturer of industrial engines and power units. We also offer innovative digital products and services. Our excellent solutions constitute the centerpiece of a wide variety of equipment and machines.

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