Valve Stem Seal (each)

Yanmar Tractor Valve Stem Seal (sold individually)

Shop Notes:
 - These are used on both the intake and exhaust valves on YM series tractors (YM1500, YM3110, etc).
 - These are used on intake only if used on F series tractors (F20, F24, etc)

This is what keep the oil in the valve cover gasket from getting into the intake or exhaust ports. 

2 used per cylinder

Replaces Yanmar 121460-11340 / 124460-11340 / VS-4460