The JCB Hydromax’s record run at Utah’s Bonneville Salt Flats has shifted the conversation beyond outright speed. Its twin hydrogen internal-combustion engines were derived from production-based JCB technology, with the engine architecture sharing components with the hydrogen power unit used in the company’s 3CX Hydrogen Backhoe Loader.
The Hydromax averaged 406.320 mph (653.909 km/h) across two FIA-regulated runs, surpassing the previous FIA-recognised hydrogen internal-combustion benchmark of 185.5 mph.
More significant for construction and agricultural equipment is what happened beyond the record attempt. JCB says the programme demonstrated that hydrogen could be transported to a remote site and refuelled in minutes, offering practical learnings for off-grid equipment operations.
Why It Matters:
The Hydromax demonstrates a different pathway for heavy-duty decarbonisation — using hydrogen combustion while retaining much of the engineering architecture familiar to conventional engines. The significance of the project therefore lies less in its top speed and more in the technology transfer from Bonneville to the worksite.
