4M43 Hatz 4M43 Specifications & Technical Data (2015—2018)

Hatz M-series: Always ready for operation

The Hatz M-series is the long-running success among the industrial diesel engines. The 2, 3 and 4 cylinder engines have been successfully established in the market for about 30 years - and they are still considered to be unbeatable. The rugged basic power train, above all the strongest crankshaft of all engines in the market, has remained unchanged since the market launch. So running times of many tens of thousands of hours are no problem for the engines in the Hatz M-series.

Environmental aspects

Hatz diesel engines in the L/M-series are the only exhaust-reduced, air-cooled engines available in this power range. The Hatz 4M41Z with exhaust gas recirculation, the Hatz 3M43 as well as the Hatz 4M43 are also fitted with an electronic speed regulator and separable diesel particulate filter. Engines in the Hatz M43-series fulfill the strict emission standards of EU regulation 97/68/EC Stage IIIB as well as the regulations of the US EPA Tier 4 final.

Robust and durable design

Hatz engines are designed for an exceptionally long service life. The best possible materials and components coupled with uncompromising quality assurance contribute to the fact that Hatz engines have been setting the benchmark in the industry for many years when it comes to robustness and service life. And should, contrary to expectations, a spare part actually be needed, more than 500 service partners in 120 countries are available quickly and dependably with advice and assistance as well as original spare parts.

Flexible Mounting for M Series Engines

Flexible mounting is normally recommended for M series engines. This mounting keeps the noise level of the driven unit low. Another possibility is the flexible mounting with elevated engine brackets (not shown here). Rigid mounting is only possible up to an operating speed of 2300 rpm.

Unique automatic engine protection

The integrated, intelligent, mechanical automatic engine protection protects the engine. When a cooling fan malfunctions, there is not enough oil, or the inclination is too high, the engine is automatically stopped to prevent engine damage.

Maintenance and repair with little effort

All necessary points for oil and air filter service as well as for valve adjustment are easily accessible from the outside. This facilitates and speeds up the maintenance significantly. The M-series is built with a modular construction principle. Length-independent components such as cylinder heads, cylinders, conrods, bearing shells, injection nozzles, injection pumps, air filters, engine regulators, starter, and alternator are identical for all engines. Engine repair is easier and more cost effective. Furthermore, storekeeping for wearing parts is much easier to organize.

Fuel consumption and cold start

M-series engines are among the most efficient in the market. Fuel consumptions of 212 grams per kilowatt hour testify to the optimized combustion process. 6-hole VCO nozzles, as well as the monoblock single pumps, and the optimized combustion chamber geometry all make their contribution to this. Without a pre glow system, the engines start reliably as low as -10 °C; with a pre glow system and corresponding resources, even -32 °C is no problem.