WABCO part numbers starting 939

93940	Spring, valve graduating	WABCO
93946	Spring, slide valve	WABCO
93971	Flow control valve	WABCO
93972	Compression helical spring	WABCO
93986	Gasket, 1 15/16 in o d. ring (valve, no. 8 vent)	WABCO
93989	Body	WABCO

Not listed? Add it yourself.