August 2, 2026. Cespira will introduce the latest generation of its High Pressure Direct Injection (HPDI) fuel system technology at IAA Transportation 2026, offering truck manufacturers a faster route to reducing CO2 emissions while retaining the performance and reliability of conventional diesel powertrains.
The new HPDI 3.0 system will make its public debut at the commercial vehicle exhibition in Hannover, Germany, from 15-20 September. The technology is designed to help original equipment manufacturers (OEMs) meet increasingly stringent emissions regulations without requiring a complete redesign of existing diesel engine platforms.
HPDI technology enables heavy-duty trucks to operate on low-carbon and renewable fuels while maintaining diesel-like performance, fuel efficiency and durability. By using compression ignition rather than spark plugs, the system preserves the high torque, low engine speed performance and long-term reliability that operators expect from diesel engines, while helping to reduce CO2 emissions and lower total cost of ownership.
The technology is particularly suited to long-haul trucking, one of the most challenging sectors to decarbonize due to long operating distances, high vehicle utilization and demanding payload requirements. Cespira says its HPDI system allows fleets to use LNG and Bio-LNG, which are often more cost-effective than diesel in many markets, without compromising vehicle capability.
The launch of HPDI 3.0 builds on a proven track record. More than 10,000 LNG-powered trucks equipped with previous generations of the HPDI system are already operating in over 30 countries, collectively covering more than 3.3 billion kilometres using Cespira fuel systems.
The latest version introduces a new fuel pressure management architecture that improves injection precision and system reliability while reducing operating costs. It also delivers further reductions in CO2 emissions compared with previous generations and provides manufacturers with a flexible platform capable of supporting multiple alternative fuels. While LNG and Bio-LNG are available today, the system has also been designed to support future applications using hydrogen, ethanol and methanol as those fuels become commercially viable.
Production of HPDI 3.0 is scheduled to begin in the fourth quarter of 2026 following its adoption by Volvo Trucks for the manufacturer’s latest generation of 13-litre gas-powered engines. Trucks equipped with the new HPDI 3.0 system are expected to enter service from early 2027.
Cespira supplies the complete HPDI fuel system platform, including onboard fuel storage, pressure management and precision fuel injection technology.