The new KEYOU HICE.40 – zero emissions and cost-effective at the same time
The smarter Way to beat Diesel
With attractive prices at hydrogen filling stations, you’ll soon outperform diesel. How? We’d be happy to show you in your TCO calculation!

KEYOU goes Heavy Duty
Benefit from current funding programmes!
It really works: As a fleet operator, you can operate CO2-free and cost-efficiently at the same time! Benefit from the new HICE.40 and KEYOU-inside H2 Engine and our strong partnership with Daimler Truck – chassis and base engine come from one of the world’s leading truck manufacturers. And profit from the new funding programmes, including those in Germany, the Netherlands (SWIM), and Luxembourg, as well as attractive hydrogen refuelling prices. Beat diesel. We’ll show you how in your TCO calculation.
Der KEYOU HICE.40 – the practical and robust long-distance transport solution
- H2 Engine: 12.8 L
- Max. Power: 350 kW @ 1600 rpm
- Max. Torque: 2.100 Nm @ 1.000 – 1.400 rpm
- Configuration: 4x2 tractor unit
- Chassis: Mercedes-Benz Actros 1848 LS
- Hydrogen Storage: 350 bar
- Range: up to 650 km
- Refueling Time: approx. 20 minutes
- Toll Exemption: until June 2031
- Hazardous Goods: ADR Typ FL (AT) approved
- Payload: no restrictions
- Lifespan: diesel-equivalent
From the engine to H2 Mobility as a Service

The heart of KEYOU-inside: the hydrogen engine
As technology leaders, we at KEYOU recognize the value of reliable and powerful combustion engines. However, the disadvantages of diesel and gasoline engines are clear: they emit pollutants and cause environmental damage. KEYOU has developed a simple solution to this problem.
Our vehicles on the road
Past hydrogen engines have been clean but delivered low performance and involved complex adaptation work. KEYOU changes the paradigm by transforming existing diesel engines into hydrogen engines in the most effective way, by smartly utilizing the same base engine and just upgrading the core sub-systems necessary for an optimal hydrogen combustion operation. Around 80 % of the engine remains unchanged.
Drive up to 600 km without thinking about refueling

A "second life" for
existing vehicles
With our hydrogen expertise, our technology and our conversion know-how, we can solve the major challenges in the commercial vehicle sector and provide a cost-effective, CO2-free mobility solution - especially for existing vehicles. Our entry-level fleet consists of converted 18t trucks, which are being delivered to the first pioneering customers since early 2025.

The story behind KEYOU - we have the KEY for YOU

Founder & management
KEYOU’s leadership team brings together experienced executives with complementary expertise. They are united by one mission: making clean, affordable mobility possible using the sustainable, energy-dense fuel of the future – hydrogen.
Meet KEYOU
We are a team of engineers, climate activists, technicians, business experts, and engine enthusiasts. We all pool our talents and expertise in the high-tech company KEYOU to develop hydrogen-based, CO2-free mobility solutions that are pragmatic, efficient, and environmentally friendly.
What others say about us
We can tell you a lot. But we thought we'd let others have their say instead, who also have something to say about KEYOU and hydrogen.














