Tier 4 emission standards
The Tier 4 Interim / Stage IIIB legislation has been introduced to enforce the reduction
of particulate matter (PM), nitrogen oxides (NOx), hydrocarbons (HC) and carbon
monoxide (CO) in engine emissions.
With additional reductions planned for Tier 4 Final / Stage IV, Perkins is already
well advanced in the development of engines that will not only comply with tougher
legislation and meet ever higher levels of technological complexity, but will also
deliver appreciable operating benefits.
To find out more about Perkins Tier 4 engines visit
We will work closely with you to ensure you’ll be ready to meet the emissions standards.
Our OEM support includes a full appraisal and fit-out service, application engineering