The 9.75-meter-long vehicle from British machinery manufacturer J.C. Bamford Excavators Ltd. (JCB) set the record following Bonneville Speed Week 2026. The racing event took place on the Bonneville Salt Flats in Utah. Andy Green, a retired Royal Air Force officer, drove the vehicle. It reached a speed record of 653.909 km/h.
The vehicle is powered by two hydrogen internal combustion engines with a combined output of 1,600 PS.
Poppe + Potthoff supplies components for JCB Hydromax
Poppe + Potthoff also played a part in setting the record: Its modular TOPAQ hydrogen distribution system components were used in the vehicle's powertrain. These included an active high-pressure control unit, distribution rails, lines, and adapters.
As part of its collaboration with JCB, the company states that it supported the vehicle development process from the initial testing phase through to the final integration of the components.

The high-pressure control unit regulates the hydrogen supply based on demand. © Poppe + Potthoff GmbH
Components Handle Hydrogen Supply
Within the system architecture, Poppe + Potthoff’s components are responsible for supplying the hydrogen internal combustion engines. They are also designed to reduce the complexity of the overall system and increase its stability. Tests conducted during the development and validation phase have already confirmed the system’s performance.
Markus Kerkhoff, CEO of Poppe + Potthoff, explained that the JCB Hydromax demonstrates the capabilities of hydrogen-based propulsion technologies. According to Kerkhoff, the record underscores that hydrogen-powered engines operate reliably and with high performance even under extreme conditions.
JCB Hydromax Sets New FIA World Record
The JCB Hydromax completed its first official run at Bonneville Speed Week 2026. During that run, the vehicle reached speeds of 592.797 km/h. JCB then set out to break an official FIA (Fédération Internationale de l’Automobile) world record on site. On August 11, the Hydromax broke the FIA land speed record for hydrogen-powered vehicles with a speed of 653.909 km/h.
The previous FIA record for hydrogen-powered vehicles dates back to 2004 and was set by the BMW H2R at 301.95 km/h. The BMW used cryogenic liquid hydrogen, while the JCB Hydromax relied on compressed gaseous hydrogen.









