Številka dela: F4-04090002A (PAF4-04090002A)
Del se uporablja za modele motorjev: Parsun F4/F5, F5A/F6A, F8/F9.8
Valve A is an internal fuel-control valve in the diaphragm pump.
It fits between valve B and the limiting plate, helping control fuel flow during the diaphragm pumping cycle.