Valve guide for Komatsu GD511A

The valve guide, part number 6204-19-1310, is a component located within the cylinder head assembly of the engine. It provides the necessary support and a sliding path for the valve stem, ensuring the valve maintains proper alignment with its seat during the opening and closing cycles. This alignment is necessary for maintaining engine compression and combustion efficiency.

This component is designed for the Komatsu S6D95L-1 engine and fits the Komatsu GD511A and GD511A-1 motor grader models. The part is supplied as a package of 12 units. Proper installation within the cylinder head is required to ensure the valve stem operates with the correct clearance, which helps manage oil consumption and prevents premature wear of the valve train components.

In internal combustion engines, valve guides serve to guide the reciprocating motion of the valves. By minimizing lateral movement of the valve stem, the guide ensures that the valve head seats squarely against the cylinder head insert, which facilitates effective heat transfer from the valve to the cooling system of the engine.