Hydraulic lash adjustment

Reducing emissions is not the only concern of an engine operator. Reducing costs – whether through reduced fuel consumption or less servicing – is also an important consideration.

Perkins’ Tier 4 engines – as well as being compliant with the latest emissions legislation – are also highly cost-efficient to operate. One technology which enhances this cost-efficiency is Hydraulic Lash Adjustment.

How it works

Hydraulic Lash Adjusters automatically adjust the valve opening and closing events, to ensure they remain true to specification regardless of engine temperature. This compensates for any variation that occurs during the life of the engine.


  • Eliminates the need for manual adjustment or servicing
  • Reduced cost of ownership
  • Improved fuel efficiency
  • Reduced engine noise
  • Reduced engine wear
  • Consistent engine performance
  • Minimised valve train noise
  • Greater packaging flexibility as service access is not required