BLOOMFIELD, CT – Jacobs Vehicle Systems®, the world’s leading manufacturer of diesel and natural gas engine retarding systems and valve actuation mechanisms, announces the launch of an compression release engine retarder for the Isuzu 6UZ1 heavy duty engine. 

The collaborative effort between Isuzu’s and Jacobs’ engineers resulted in the development of a powerful and reliable compression release brake which enhanced the performance of Isuzu’s engine while reducing the truck’s total cost of ownership. The Isuzu 6UZ1 engine with the Jacobs Engine Brake® is now available in Japan on the GIGA series of heavy duty trucks that employs Isuzu’s next generation D-CORE diesel engines.

“This launch is the result of a successful partnership between Isuzu Motors and Jacobs Vehicle Systems. We are proud to design and manufacture the engine retarder for the 9.8L engine that now equips the new GIGA heavy duty trucks from Isuzu,” said Sergio Sgarbi, President of Jacobs Vehicle Systems. 

For more information on the Isuzu 6UZ1 engine, please refer to the Isuzu press release announcing the engine launch.




About Jacobs Vehicle Systems

Jacobs Vehicle Systems is headquartered in Bloomfield, Conn., where it has a 25,000 square meter design, testing and manufacturing facility, with support sites in Europe, Japan, India as well as a manufacturing facility in Suzhou, China. Jake Brake® products are used by heavy and medium-duty diesel engine manufacturers globally. Registered to the ISO 14001 and TS16949 standards, Jacobs Vehicle Systems is the world’s leading producer of vehicle retarding and valve actuation technologies and can be found at

About Isuzu
Isuzu is a global leader in commercial vehicle and diesel engines, serving customers in over 100 countries. Founded in 1916, Isuzu is headquartered in Tokyo with plants in Kanagawa and Tochigi, Japan. Isuzu’s products include heavy-, medium-, light-duty trucks, buses, passenger vehicle engines, and industrial-use diesel engines. More information can be found by visiting