INA Rocker Arm

INA Rocker Arm

Keeps valve clearance constant

Product description:

INA rocker arms and finger follower are designed specifically to OEM specifications, and provide quiet operation and long durability.

That’s why state-of-the-art INA Rocker Arms use cam rollers with needle bearings. And at the other end of the rocker arm is a hydraulic valve-clearance compensation element, like an insert element or an adjusting screw, for mechanical valve-clearance adjustment. This part of the rocker arm actuates the intake and exhaust valves.

We recommend replacing rocker arms and finger followers together with all compensation elements due to the many peripheral components that work with them.

Note – in rocker-arm valve trains, the camshaft stroke is transmitted to the lever either by means of sliding contact or by a roller (roller-type rocker arm).


  • Very low noise
  • Maintenance-free
  • Requires little space
  • Delivers constant valve clearance
  • Low frictional losses via precision roller bearings
  • Improves engine emissions

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