Thanks to several years’ experience from the SCR system, Volvo Penta can offer off-road application manufacturers a sustainable engine plan for meeting current and new environmental standards. However, the emission compliance is only the first of many manufacturer and end user benefits.

The strategy for evolving the Volvo Penta engines from Tier 4 Interim to Tier 4 Final compliance was obvious. The SCR system had more than proven its efficiency, so we kept it simple. Together with a light EGR system, our new generation of engines now stands ready to meet the new emission standards with a well-proven technology. 

The main technical changes in the new engine range are:
  • Optimised SCR system
  • Updated airless urea injection
  • Added light EGR
  • Simple installation: redesigned tank now includes
    pump and control unit
Easier installations
An engine with the Volvo SCR system has the same – or lower – cooling demand than one without SCR. Lower cooling demands translates to lower noise levels and minimised costs for the radiator package. This enables
manufacturers to house the cooling system in installations where space is limited.

Maximised power output
The Volvo Advanced Combustion Technology and the SCR system turn more fuel energy into mechanical power – which leads to less heat rejection – meaning that the power output can be maximised for any given engine displacement. The result is smaller engine sizes, reduced costs, and simplified installations.

Reduced overall costs
For the end users, the principal benefits of the SCR engines start with unsurpassed fuel efficiency that cuts operating costs. With the SCR system, where the catalytic converter is designed to last the life of the engine, costs for
maintenance and downtime are also reduced.