Zetros Highlights
Zetros Highlights

The Zetros is designed for use on poor roads and in rugged terrain. Its solid and robust chassis is based on the excellently coordinated purpose-built and tested suspension, which ensures fast and safe driving on a wide variety of ground.

Off-road capability

  • Heavy-duty, flexible and torsionally flexible frame

    Safe transport of heavy loads far beyond the beaten track.
    Smooth, vibration-reduced ride behaviour off-road.

  • Permanent all-wheel drive for 6x6 and 4x4 model series

    High traction on loose ground.
    High pulling power in terain and towing a trailer.

  • Mechanical differential locks, if required, engageable by the driver

    Traction can be adapted individually to the current situation.
    Robust, durable design.

  • 2-stage transfer case with low-range ratio

    Boosts pulling power under extreme conditions; allows it to tackle gradients of up to 80%
    Reduces speed offroad.

Angle of approach

Model Zetros A 4x4 Zetros A 6x6
a) Ground clearance at front (mm) under axle
b) Ground clearance at rear (mm) under axle
c) Angle of approach (°)
d) Angle of departure (°) Dependent on superstructure
e) Breakover angle (°)
f) Tilting angle, static (°)
g) Degree of articulation (mm)
2 x 500 diagonal
2 x 500 diagonal
h) Climb gradient (°)

Fording capability

  • Sealed assemblies, protected from water

    Prevent ingress of water and fine sand
    Full sealing makes longer fording drives possible

  • Air intake pipe at cab roof level

    Reliable air supply even in turbulent water

Torsional flexibility

Angle of approach

Degree of articulation

Tilt angle, static (dependent on superstructure)

Break-Over angle

Axle Concept

Very high load-bearing capacity, robust design and a long service life – these requirements are ideally met by model series 7 axles. With over one million units manufactured and in use, the reliability of these axles has already been amply proven. The driven outer planetary axles with differential lock guarantee a high drive torque. Crown wheels with a diameter of 300 mm guarantee high ground clearance. Together with the long travel of the parabolic springs, this ensures the Zetro’s outstanding off-road capability. Robust stabilisers reduce the rolling tendency, improving handling safety and comfort. It is possible to select a driven or non-driven front axle. The Zetros uses wide gap parabolic suspension springs: due to their low internal friction, these springs have a very soft and comfortable response.

Front axle 9.0 t, driven

Rear axle 16.0 t, driven with differential lock

Straight front axle, increased ground clearance [A1X] – Front axle 9.0 t, not driven


Zetros tank capacity.


290-litre steel main tank with 2 baffle plates and corrosion protection.

[K4Z] – 290-litre tank, on right, 650 x 565 x 950 mm, steel (standard).

High driving stability, as the baffle plates stop the fuel from surging around inside the tank.

Durable thanks to internal tank coating, priming and painting.


The Zetros Powertrain

The Engine Concept

The Zetros overall concept is also reflected in the engine: High output (265 to 375 kW), long maintenance intervals and low service expenditure were the focus from the very start.

The Zetros is available as a 4×2/4×4 vehicle with a 6-cylinder inline engine in the weight variants 16.5–22 tons. The 6×4/6×6 variants of the Zetros with 6-cylinder inline engine are available as 25–40-ton weight variants.

As a 3-axle semitrailer tractor powered by the OM 460 engine, the Zetros, with a permissible gross combination weight of up to 120 t, offers enough reserves to be able to reliably transport the heaviest loads on multi-axle trailers far beyond the paved roads.

The Transmission Concept

Reliability, performance and a high overall gear ratio with a closely spaced range of gears are the demands placed on the transmission of a highly off-road capable truck such as the Zetros.

To meet these requirements for the high output of the OM460 engine (265-375 kW), the Zetros is equipped with the 16-speed G260-16/11.7-0.69 manual transmission.

The fully synchronised 16-speed manual transmission offers the optimum conditions for getting the high output onto the road or onto the ground.

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