Description

Rocker Shaft – the hollow shaft that carries the rocker arms in the valvetrain, mounted across the cylinder head rocker pedestals.

The rocker arms pivot on the shaft to transfer motion from the pushrods to the valve stems, and its internal bore distributes pressurised oil to lubricate the rocker gear. Correct alignment of the shaft and its support posts is essential to even valve actuation and oil feed across all cylinders.

For the 2.25L and 2.5L four-cylinder petrol and naturally-aspirated diesel engines.