supply of kit overhauling magnet valve, kit overhauling magnet valve to nyab part no. 774257 consisting of 18 items for wdp4 / wdg4 locos. 1 . piston stem to part no.776507 - 2nos. 2. bushing to part no. 776517 -2nos 3. drive screw to part no. 770520- 2nos. 4. valve magnet to part no. ii 15976 / 024 -1 no 5. 0 ring to part no. 751374 -2nos. 6. knorr-k-ring to part no. 457353-2nos. 7. compression spring to part no. k3485 -2nos. 8. knorr-k-ring to part no. 462575 -2nos 9. 0 ring to part no. k3074-2nos. 10. exhaust filter to part no. a63797 -1no 11 . valve head to part no. k4177 -2 nos. 12. piston head to part no. 776506 -2nos 13. retaining ring internal to part no.755210 -2nos 14. 0 ring to part no. 756709 -2nos. 15. 0 ring to part no. 757233-2nos 16. retaining ring zinc plated to part no.774390 -2no 17. filter screen to part no. 774923 -1no. 18. spring compression to part no.775344 -2nos. [ warranty period: 30 months after the date of delivery ]