A Hydraulic lash adjuster, is a device for maintaining zero valve clearance in an IC engine.
It allows the valve train to operate with zero clearance leading to quieter operation, longer engine life, and eliminating the need for periodic adjustment of valve clearance.
Engine Brake System (EBS)
Engine brake System prevent normal brakes from overheating, especially in Heavy commercial vehicles when going down hills, as this causes brake wear and possibly even failure. Using Exhaust Brake properly can help to increase the brakes life three time longer