Extreme off-road Unimog
Built for extremes.
If your everyday life involves extreme terrain, extreme weather conditions, or extreme tasks, you have a powerhouse at your side with the extreme off-road Unimog, which is not only reliable but also extremely robust.
Highlights
Setting standards with the Unimog.
Where the road ends, the path for the extreme off-road Unimog begins: All-wheel drive, high fording capability, and the extremely twistable chassis make it possible. This is how you bring teams, materials, or heavy equipment to remote deployment sites.
- Three attachment and implement spaces
- 30° axle articulation
- 1.2 m fording depth
With the Unimog, you get more than just a vehicle. Standardised implement and attachment options mean that the range of applications is virtually limitless.
30° axle articulation enables optimal traction, even on difficult terrain.
The Unimog's fording capability allows you to cross rivers, streams, or flooded areas up to a depth of 1.2 m.
Drives
On the road with momentum.
Whether you're on the motorways at up to 89 km/h or moving at walking pace: With the Unimog, you cut efficiently at any speed range. Because your truck has a drivetrain with efficient engines from Mercedes‑Benz Trucks as well as a powerful transmission, allowing it to handle high payloads with its robust axles.
- 8-speed EPS transmission with off-road gear group
- Automated gearshift (EAS)
- Engageable all-wheel drive
- Electronic Quick Reverse (reversing gearshift)
- Powerful 4-cylinder engine with 170 kW and 900 Nm torque
- Compliance with the Euro VIe emissions standard
- Robust portal axles
- Pneumatic disc brakes as standard
- Tire pressure control system TireControl plus with practical operation ex-works
- Off-road ABS
- 3 individually engageable differential locks
Attachment options
Versatile off-road.
Mechanical, hydraulic and electric drives as well as interfaces open up numerous opportunities for different implements and bodies. Mercedes‑Benz Trucks has been cooperating with international equipment manufacturers and bodybuilders for decades. The standardised attachment points make it easy to attach bodies and change implements.
Attachment options
Sets the standards off-road.
Whether your mission takes you across gravel, snow, sand or unpaved roads: The extreme off-road Unimog gets through it when others give up. And it brings has the necessary tools on board so you can accomplish your tasks on-site.
Versatile attachment options
With numerous standardised attachment points, you can securely and stably attach accessories and attachments.
- Standardised front mounting plate for attachments up to 1.5 t
- Mounting brackets for compressors or major assemblies
- Winch holder
- Frame mounting brackets
- Mounting parts for platforms or box bodies
- Subframe for special bodies
If, for example, you want to use water pumps or hydraulic pumps, the engine-powered PTO offers versatile deployment potential. Optionally, you can also opt for the proven transmission PTOs, for example, a fast one for hydraulic pumps and a very fast one for fire service pumps. The special subframe is used for the torsion-free mounting of platforms or box bodies.
With the vehicle's hydraulics, you can operate equipment such as self-recovery winches, snow ploughs, front loaders, or hydraulic tools. The single-circuit hydraulic system delivers a working pressure of 240 bar with a flow rate of 60 l/min and a pump capacity of 24 kW. Standardised plug connections are also available at the front and rear. For electrical power supply to the equipment, you can rely on 4 standardised sockets.
Whether in disaster relief or other extreme situations: You can also rely on the Unimog for demanding tasks and challenges.
Group dynamics.
If you want to transport not only materials but also many people, you can order the Unimog with a double cab. The front seat bench has space for 3 people, the rear bench offers 4 seats, allowing you to transport a total of 7 people. The rear bench comes with individual seat belts, is foldable, and provides plenty of storage space underneath for tools, equipment, or personal items. The crew can easily get in and out through 4 wide-opening doors. And if you need extra comfort, you can opt for 2 air-sprung individual seats instead of the rear bench.
Off-road capability
Barely any obstacles.
The extreme off-road Unimog combines high ground clearance with a low centre of gravity. This provides you with maximum stability even on steep terrain and enables highly flexible movement across challenging terrain.
Off-road capability
Unique frame design.
Thanks to the offset vehicle frame, the heart of the Unimog’s off-road capability, you remain flexible and stable in any application. The cranked design, together with the portal axles, enables high ground clearance with a low vehicle centre of gravity. And because the frame is fully welded, it can permanently withstand torsional stress. Its torsional flexibility, combined with torque tube technology and the three-point mounting of the engine, transmission, cab, and bodies, allows a diagonal articulation of up to 600 mm.
The axle connection via torque tube, thrust ball on the transmission, and coil springs with vast spring travel allows for axle articulation up to 30°, ensuring easy handling and high levels of grip. The encapsulation protects the Unimog’s drive shafts from contamination such as dust, water, and other environmental factors encountered off-road.
The typical portal axles of the Unimog offer you great ground clearance with a low vehicle centre of gravity. And with the asymmetrical arrangement of the axle differentials, you can more easily drive over obstacles. The axle suspension is reinforced and can withstand very heavy loads. The axle layout is also designed to be robust: This makes high standard load ratings possible.
Portal axles
1. Wheel cluster
2. Axle centre
3. Wheel centre
Thanks to its short frame overhangs and high ground clearance, the Unimog provides large approach and slope angles. Together with its climbing ability of up to 100%, you can also tackle steep sections of terrain.
The principle is: The rear wheels follow the front wheels in the same track. This increases traction and protects the ground surface.
Whether you're on the road, in sand or off-road, you can adjust the tyre pressure to suit the surface. With three pre-configured modes —“Road,” “Sand,” and “Rough Terrain” — you intuitively select the correct setting. Even nature benefits from TireControl plus: Driving off-road with lowered tyre pressure improves traction while also protecting the ground surface.
Comfort and design
Ergonomics
Get in, feel comfortable, and start driving: With the comfortable seat position and the clearly arranged combined instrument cluster, the Unimog offers you intuitive operation and increased safety in operation.
Comfort and design
Ergonomics
Sophisticated operating concept.
In the Unimog, you experience a work environment that meets your daily demands. The cockpit makes your work easier with a well thought-out operating concept. Thanks to the ergonomic arrangement of control elements, you have everything under control. This allows you to complete your tasks calmly and comfortably.
Progress ergonomically.
In the Unimog, the cab supports you in your work - especially when you have to make quick decisions. Control elements are intuitively arranged and easy to use. You sit in the low-vibration area behind the front axle, ensuring a comfortable ride even off-road. Daytime running lights and headlights provide excellent visibility and enable you to keep an eye on the driving area.
- Interior.
- Instrument cluster.
- Steering-column stalk switch.
- Controls.
- Steering column.
The Unimog web configurator
Discover the Unimog in 3D now.
Customise your Unimog virtually according to your preferences by choosing from a wide range of equipment and vehicle options. Take a 360-degree tour of the cab and see for yourself the conceptual advantages of the Unimog.
Safety
Safely across terrain.
Whether on ice and snow or in the desert, in water or on steep slopes: With your Unimog, you’re travelling as safely as possible. The robust, welded frame, the all-steel cab, the fording depth of 1.2 m, and the torque tube concept protect you and your vehicle. For additional safety on almost any surface, there's off-road ABS. The low vehicle centre of gravity gives you maximum stability even on extreme inclines.
Advice and services
Very well prepared.
Our service partners set standards in terms of quality, cost, and environmental awareness – day in, day out. In the event of a repair, Mercedes-Benz Trucks Service is there for you with Genuine Parts. With attractive warranty packages, you can protect your truck and ward against unforeseen financial risks. Choose the package that best suits your needs and go well-prepared into your work. With the warranty packages that can be added when purchasing a new vehicle, you keep your truck running.
Custom Tailored Trucks
Your truck as a custom-built model
If you want your truck to be as unique as you are, then Mercedes‑Benz Trucks factories in Wörth and Molsheim are here for you. Here, professionals fulfill those special requirements that go beyond standard production. You are also provided with a manufacturer's warranty for these custom-made vehicles and benefit from the worldwide Mercedes-Benz Trucks Service.
Cooperation with bodybuilders
Mercedes-Benz Trucks has been working closely with international and certified equipment and bodybuilders for decades. This incorporates the experience and expertise of the partners in system solutions, which are precisely tailored to your needs.
The close cooperation has a clear focus: Keeping you safe. It's not only about new attachment and body solutions but also about fundamental vehicle characteristics. The best results are achieved when everyone works hand in hand.
Technical data
The right choice.
The right truck for your tasks.
Learn more about the technical details of the extreme off-road Unimog.
Technical data
Specifications
Dimensions and weights.
| U 4023 | U 4023 crew cab | U 5023 | U 5023 crew cab |
| Wheelbase (mm) | Wheelbase (mm) | Wheelbase (mm) | Wheelbase (mm) |
| 3,850 | 3,850 | 3,850 | 3,850 |
| Vehicle height | Vehicle height | Vehicle height | Vehicle height |
| 2,797 | 2,797 | 2,873 | 2,873 |
| Vehicle width (mm) | Vehicle width (mm) | Vehicle width (mm) | Vehicle width (mm) |
| 2,480 | 2,480 | 2,480 | 2,480 |
| Vehicle length (mm) | Vehicle length (mm) | Vehicle length (mm) | Vehicle length (mm) |
| 6,000 | 6,000 | 6,000 | 6,000 |
| Space for installations (mm) | Space for installations (mm) | Space for installations (mm) | Space for installations (mm) |
| 4,100 x 2,280 x 1,400 | 3,100 x 2,280 x 1,400 | 4,100 x 2,280 x 1,400 | 3,100 x 2,280 x 1,400 |
| U 4023 | U 4023 crew cab | U 5023 | U 5023 crew cab |
| Permissible maximum gross combination weight (with corresponding special equipment) (tons) | Permissible maximum gross combination weight (with corresponding special equipment) (tons) | Permissible maximum gross combination weight (with corresponding special equipment) (tons) | Permissible maximum gross combination weight (with corresponding special equipment) (tons) |
| 7.5/8.0**/10.3 | 7.5/8.0**/10.3 | 12.5/13.0**/14.5 | 12.5/13.0**/14.5 |
| Permissible axle loads: Weight on front axle (tons) | Permissible axle loads: Weight on front axle (tons) | Permissible axle loads: Weight on front axle (tons) | Permissible axle loads: Weight on front axle (tons) |
| 4.1/4.1**/4.6 | 4.1/4.1**/4.6 | 5.5/5.7**/6.4 | 5.5/5.7**/6.4 |
| Permissible axle loads: Weight on rear axle (t) | Permissible axle loads: Weight on rear axle (t) | Permissible axle loads: Weight on rear axle (t) | Permissible axle loads: Weight on rear axle (t) |
| 4.6/4.6**/6.0 | 4.6/4.6**/6.0 | 7.1/7.9**/8.8 | 7.1/7.9**/8.8 |
* Specifications depending on load and tyres
** Standard configuration
Vehicle speeds.
| U 4023 | U 4023 | U 5023 | U 5023 |
| Forwards | Reverse | Forwards | Reverse |
| Basic gear 1 | Basic gear 1 | Basic gear 1 | Basic gear 1 |
| 6.6 | 4.4 | 6.9 | 4.5 |
| Basic gear 2 | Basic gear 2 | Basic gear 2 | Basic gear 2 |
| 9.6 | 6.3 | 9.9 | 6.5 |
| Basic gear 3 | Basic gear 3 | Basic gear 3 | Basic gear 3 |
| 14.5 | 9.5 | 15.0 | 9.9 |
| Basic gear 4 | Basic gear 4 | Basic gear 4 | Basic gear 4 |
| 19.7 | 13.0 | 20.4 | 13.4 |
| Basic gear 5 | Basic gear 5 | Basic gear 5 | Basic gear 5 |
| 29.0 | 19.1 | 30.1 | 19.8 |
| Basic gear 6 | Basic gear 6 | Basic gear 6 | Basic gear 6 |
| 41.9 | 27.5 | 43.4 | 28.5 |
| Basic gear 7 | Basic gear 7 | Basic gear 7 | Basic gear 7 |
| 63.5 | 41.7 | 65.8 | 43.2 |
| Basic gear 8 | Basic gear 8 | Basic gear 8 | Basic gear 8 |
| 86.4 | 56.7 | 89.6 | 58.8 |
| U 4023 | U 4023 | U 5023 | U 5023 |
| Forwards | Reverse | Forwards | Reverse |
| Off-road gear 1 | Off-road gear 1 | Off-road gear 1 | Off-road gear 1 |
| 2.1 | 1.4 | 2.2 | 1.4 |
| Off-road gear 2 | Off-road gear 2 | Off-road gear 2 | Off-road gear 2 |
| 3.0 | 2.0 | 3.1 | 2.0 |
| Off-road gear 3 | Off-road gear 3 | Off-road gear 3 | Off-road gear 3 |
| 4.6 | 3.0 | 4.7 | 3.1 |
| Off-road gear 4 | Off-road gear 4 | Off-road gear 4 | Off-road gear 4 |
| 6.2 | 4.1 | 6.4 | 4.2 |
| Off-road gear 5 | Off-road gear 5 | Off-road gear 5 | Off-road gear 5 |
| 9.1 | 6.0 | 9.4 | 6.2 |
| Off-road gear 6 | Off-road gear 6 | Off-road gear 6 | Off-road gear 6 |
| 13.1 | 8.6 | 13.6 | 8.9 |
| Off-road gear 7 | Off-road gear 7 | Off-road gear 7 | Off-road gear 7 |
| 19.9 | 13.1 | 20.6 | 13.6 |
| Off-road gear 8 | Off-road gear 8 | Off-road gear 8 | Off-road gear 8 |
| 27.1 | 17.8 | 28.1 | 18.4 |
* Values for standard tyres in km/h. Vehicle speeds may differ with other tyres.
Dealer search
Tailored advice and expert service: Find your nearest Mercedes-Benz Unimog dealer here.
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