JCB Ecomax powered machines photoJCB’s innovative solution to EU Stage IIIB/US Tier 4 emissions legislation will be on show for the first time at Bauma as machines powered by the JCB Ecomax engine make their debut.

JCB, with its award-winning Ecomax engine, is the only leading equipment manufacturer in the world to have met the stringent Stage IIIB/Tier 4 interim emissions legislation without the use of diesel particulate filter (DPF) or after-treatment – resulting in the world’s cleanest and most efficient off-highway engine.

Instead, JCB has met the legislation through the use of innovative in-cylinder technologies (patent pending) resulting in a cleaner, more efficient combustion process. This has eliminated the need for any external exhaust after-treatment meaning no diesel particulate filter (DPF) or additives such as Ad-Blue, significantly reducing operating costs.


The JCB Ecomax builds on the success of the original Dieselmax engine and retains the same key characteristics such as high torque at low engine revs, robustness and reliability as well as low noise and vibration. It has been developed following an £80 million investment programme and has undergone over 110,000 hours of testing across a range of diverse applications, machines and environments.

Customer Benefits

As well as the obvious environmental benefit with the reduction in emissions, the JCB Ecomax engine will also offer customers improved torque throughout the rev range coupled with noticeably reduced fuel consumption.

JCB Ecomax engines can run on standard engine oils, unlike engines with after treatment, which require a more expensive CJ4 oil to function correctly.

The no-after treatment approach also allows the introduction of an innovative recalibration option which makes it possible for JCB dealers to recalibrate the Ecomax engine to lower injection pressures and turn off the EGR function, without any hardware changes. In effect, this recalibration takes the engine out of the emissions tier system, and opens it up for export to less regulated countries that only offer lower quality, higher sulphur content fuels. This maximises the residual value of the machine for customers, without sacrificing the Ecomax advances.

No DPF and after-treatment also means that the dimensions of the engine and its space claim on the machine are unchanged. This removes the need for any increase in chassis length or bonnet size maintaining the machines’ excellent manoeuvrability and visibility.

The Ecomax’s new electronic ECU has been fully integrated with JCB LiveLink advanced telematics system, to further enhance its capability. As well as location information, routine service notifications and critical machine health alerts, JCB LiveLink will give customers remote access to full Ecomax engine diagnostics and fuel economy data via the internet or through their mobile phones.

The JCB Ecomax engine range has been extended, both up and down in terms of power output, and will be fitted into machines spanning the 74hp to173 hp range, including JCB backhoe loaders, Loadall telescopic handlers, wheeled loading shovels, the TM range of telescopic boom wheeled loaders, JS excavators, rough terrain forklifts and skid steer loaders.

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