Cummins 4BT/6BT/QSB/ISB

Cummins 4BT 6BT valve guide is a critical cylinder head precision component for Cummins 4BT3.9, 6BT5.9, 6BTA5.9 and QSB series diesel engines. Also known as valve stem guide, this part precisely limits the movement of intake and exhaust valves, keeps vertical alignment, reduces stem friction, prevents valve oil leakage, valve sticking and cylinder head abrasion.

Following is the other cummins valve guide of we are producing.