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(K903) - MARK II EXCAVATOR ASN LE7872 (1/88-12/03) (11-022) - CYLINDER ASSY-BOOM Kobelco


1. HEAVY EQUIPMENT
2. CRAWLER EXCAVATORS
3. K SERIES EXCAVATORS
4. (K903) - MARK II EXCAVATOR ASN LE7872 (1/88-12/03)
5. 11 Hydraulic Components
6. (11-022) - CYLINDER ASSY-BOOM


(11-022) - CYLINDER ASSY-BOOM Kobelco:

(11-022) - CYLINDER ASSY-BOOM Parts scheme
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Parts on group (K903) - MARK II EXCAVATOR ASN LE7872 (1/88-12/03):

Pos. Part No Qty Parts name Comments
. . 2438U721F1 [1]   BOOM   KOB ASSY
1. 2438U721S1 [1]   TUBE, CYLINDER  
2. 2438U721S2 [2]   BUSHING   KOB
3. 2438U721S3 [1]   PISTON-ROD  
4. 2438U716S2 [1]   BUSHING   KOB
5. 2438U721S5 [1]   CYLINDER HEAD   KOB
6. B38K0034S4 [1]   BUSHING   KOB Superseded by part number: 2405U104D7040
7. 2438U721S7 [1]   SNAP RING   KOB
8. 2438U675S17 [1]   LOCK   KOB
9. 2438U721S9 [1]   PISTON   KOB
10. 2438U721S10 [1]   SHIM  
11. 2438U721S11 [1]   PIN   KOB
12. 2438U721S12 [1]   RING, SNAP   RING, SNAP
13. 2438U721S13 [1]   PLATE  
14. 2438U721S14 [1]   SPRING   KOB
15. 2438U721S15 [1]   VALVE SEAT   KOB
16. 2438U721S16 [1]   RING   KOB
17. 2438U721S17 [1]   BACK-UP RING   KOB
18. ZD12P11500 [1]   O-RING   KOB ID 114.60 ± 0.94 x OD 125mm
19. 2438U721S19 [1]   BACK-UP RING   KOB Superseded by part number: ZD85P11500
20. 2438U721S20 [1]   RING   KOB BUFFER
21. ZD12G12500 [1]   O-RING,124.40mm ID x 130.60mm OD x 3.10mm   KOB ID 124.40 ± 1.01 x OD 130mm
22. ZD12P11000 [1]   O-RING   KOB
23. 2438U721S23 [2]   RING   KOB BACK-UP
24. 2438U675S20 [1]   RING   KOB SEAL
25. 2438U721S25 [2]   RING   KOB
26. 2438U721S26 [2]   SEAL   KOB RING, WIPER
27. 2438U716S25 [1]   SEAL   KOB RING , WIPER
. . 2438U721R100 [1]   REPAIR KIT   KOB CONSISTS OF REF 6 TO 8,10 & 15 TO 27
. . 2438U721R110 [1]   REPAIR KIT CONSISTS OF REF 1 & 2   REPAIR KIT CONSISTS OF REF 1 & 2
. . 2438U721R120 [1]   REPAIR KIT CONSISTS OF REF 3 & 4   REPAIR KIT CONSISTS OF REF 3 & 4
. . 2438U721R130 [1]   REPAIR KIT   KOB CONSISTS OF REF 15 TO 23
. . 2438U721R140 [1]   REPAIR KIT   KOB CONSISTS OF REF 24, 25 Superseded by part number: 2438U721R140P

Parts catalog (K903) - MARK II EXCAVATOR ASN LE7872 (1/88-12/03):

(11-021) - CYLINDER ASSY-BUCKET (P/N 2438U717F1~F3)
(K903) - MARK II EXCAVATOR ASN LE7872 (1/88-12/03) part catalog
(11-020) - CYLINDER ASSY-SIDE DIGGING
(K903) - MARK II EXCAVATOR ASN LE7872 (1/88-12/03) part catalog
(11-019) - CYLINDER ASSY-DOZZER
(K903) - MARK II EXCAVATOR ASN LE7872 (1/88-12/03) part catalog
(11-018) - PUMP ASSY
(K903) - MARK II EXCAVATOR ASN LE7872 (1/88-12/03) part catalog
(11-023) - CYLINDER ASSY
(K903) - MARK II EXCAVATOR ASN LE7872 (1/88-12/03) part catalog
(11-024) - CYLINDER ASSY-ARM (P/N 2438U909F1)
(K903) - MARK II EXCAVATOR ASN LE7872 (1/88-12/03) part catalog
(11-025) - CYLINDER ASSY-BUCKET (P/N 2438U968F1)
(K903) - MARK II EXCAVATOR ASN LE7872 (1/88-12/03) part catalog
(11-026) - PISTON ASSY
(K903) - MARK II EXCAVATOR ASN LE7872 (1/88-12/03) part catalog
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