supply of n1 reducing valve overhauling kit consisting of 5 itemsn1 reducing valve overhauling kit consisting of 5 items, n1 reducing valve overhauling kit consisting of 5 items ( i ) o ring 3 / 4 to wabco part no. 531868 / faiveley part no. 502702000 to rdso drg no. skdp-3031 ( item no.4 ) , qty / set -02 nos. ( ii ) o ring 3 / 4 to wabco part no. 564056 / faiveley part no. 502709000 to rdso drg no. skdp-3031 ( item no.16 ) , qty / set -01 no. ( iii ) diaphragm to wabco part no. 526346 / faiveley part no. 502704000 to rdso drg no. skdp 3052, qty / set -01 no. ( iv ) gasket to wabco part no. 558515 / faiveley part no. 523703000, qty / set -02 nos. ( v ) dirt protector to wabco part no. 564855 / faiveley part no. 523701000, qty / set -01 no. [ warranty period: 24 months after the date of delivery ] => limited