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129-7835 CYLINDER GP-BUCKET S/N AKJ1-UP; AKX1-UP 170-MM (6.7-IN) BORE X 1366-MM (53.8-IN) STROKE PART OF 129-7834 CYLINDER & SEAL GP-BUCKET AN ATTACHMENT 345B II




HYDRAULIC SYSTEM

CYLINDER GP
 

#SEBP30750400
 

129-7835: CYLINDER GP-BUCKET

129-7835 CYLINDER GP-BUCKET
S/N AKJ1-UP; AKX1-UP
170-MM (6.7-IN) BORE X 1366-MM (53.8-IN) STROKE
PART OF 129-7834 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT
i01265185 SEBP3075
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Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 129-7866 [1] CYLINDER AS  
1A. 087-5379 [1] BUSHING  
2. 7Y-4956 M [1] LOCKNUT (M90X2-THD)  
3. 105-7262 J [1] RING-WEAR  
4. 9X-3607 J [1] SEAL AS  
5. 096-5609 J [1] RING  
6. 7I-7181 [1] PISTON  
7. 095-1726 J [1] SEAL-O-RING  
8. 7Y-4945 J [1] RING-BACKUP  
9. 7Y-4944 [1] RING-RETAINING  
10. 114-0761 [1] BUSHING  
11. 128-9266 J [1] SEAL-BUFFER  
12. 7Y-4932 [1] HEAD  
13. 170-9865 J [1] SEAL-U-CUP  
14. 7Y-4941 J [1] RING-BACKUP  
15. 165-9291 J [1] SEAL-LIP TYPE  
16. 247-8897 [1] ROD AS  
16A. 4I-1520 [1] BUSHING  
17. 7Y-5239 M [8] BOLT-SOCKET HEAD (M24X3X100-MM)  
   
    AVAILABLE REPAIR KIT(S):
  215-9990 J [1] KIT-SEAL (BUCKET CYLINDER)  
  J   KIT MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP30750401
 

173-3541: CYLINDER GP-BUCKET

173-3541 CYLINDER GP-BUCKET
S/N AKJ1-UP; AKX1-UP
160-MM (6.3-IN) BORE X 1356-MM (53.4-IN) STROKE
PART OF 173-3540 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT
i01287697 SEBP3075
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Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 118-3936 [1] CYLINDER AS  
1A. 087-5533 [1] BUSHING  
2. 123-2112 M [1] LOCKNUT-SPECIAL (M90X2-THD)  
3. 118-3944 J [1] RING  
4. 9X-3604 J [1] SEAL AS  
5. 096-3201 J [1] RING  
6. 123-2111 [1] PISTON  
7. 095-1635 J [1] SEAL-O-RING  
8. 087-5550 J [1] RING-BACKUP  
9. 7Y-4944 [1] RING-RETAINING  
10. 114-0762 [1] BUSHING  
11. 123-2031 J [1] SEAL-BUFFER  
12. 087-5551 [1] HEAD  
13. 7Y-5239 M [8] BOLT-SOCKET HEAD (M24X3X100-MM)  
14. 7Y-4942 J [1] SEAL-U-CUP  
15. 7Y-4941 J [1] RING-BACKUP  
16. 165-9291 J [1] SEAL-LIP TYPE  
17. [1] ROD AS  
17A. 087-5548 [1] BUSHING  
   
    AVAILABLE REPAIR KIT(S):
  168-0760 J [1] KIT-SEAL (BUCKET CYLINDER)  
  J   KIT MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP30750402
 

173-3545: CYLINDER GP-BUCKET

173-3545 CYLINDER GP-BUCKET
S/N AKJ1-UP; AKX1-UP
170-MM (6.7-IN) BORE X 1366-MM (53.8-IN) STROKE
PART OF 173-3544 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT
i01287664 SEBP3075
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Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 129-7866 [1] CYLINDER AS  
1A. 087-5379 [1] BUSHING  
2. 7Y-4956 M [1] LOCKNUT (M90X2-THD)  
3. 105-7262 J [1] RING-WEAR  
4. 9X-3607 J [1] SEAL AS  
5. 096-5609 J [1] RING  
6. 7I-7181 [1] PISTON  
7. 095-1726 J [1] SEAL-O-RING  
8. 7Y-4945 J [1] RING-BACKUP  
9. 7Y-4944 [1] RING-RETAINING  
10. 114-0761 [1] BUSHING  
11. 128-9266 J [1] SEAL-BUFFER  
12. 7Y-4932 [1] HEAD  
13. 170-9865 J [1] SEAL-U-CUP  
14. 7Y-4941 J [1] RING-BACKUP  
15. 165-9291 J [1] SEAL-LIP TYPE  
16. 247-8898 [1] ROD AS  
16A. 4I-1520 [1] BUSHING  
17. 7Y-5239 M [8] BOLT-SOCKET HEAD (M24X3X100-MM)  
   
    AVAILABLE REPAIR KIT(S):
  215-9990 J [1] KIT-SEAL (BUCKET CYLINDER)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP30750403
 

225-4529: CYLINDER GP-BUCKET

225-4529 CYLINDER GP-BUCKET
S/N AKJ1-UP; AKX1-UP
160-MM (6.3-IN) BORE X 1356-MM (53.4-IN) STROKE
PART OF 118-3934, 225-4528 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT
i02212142 SEBP3075
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Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 118-3936 [1] CYLINDER AS  
1A. 087-5533 [1] BUSHING  
2. 123-2112 M [1] LOCKNUT-SPECIAL (M90X2-THD)  
3. 185-0230 J [2] RING  
4. 9X-3604 J [1] SEAL AS  
5. 185-0231 J [1] RING  
6. 185-0232 [1] PISTON  
7. 095-1635 J [1] SEAL-O-RING  
8. 087-5550 J [1] RING-BACKUP  
9. 7Y-4944 [1] RING-RETAINING  
10. 114-0762 [1] BUSHING  
11. 333-8687 J [1] SEAL-BUFFER  
12. 358-8528 [1] HEAD  
13. 7Y-5239 M [8] BOLT-SOCKET HEAD (M24X3X100-MM)  
14. 333-8688 J [1] SEAL-U-CUP  
15. 7Y-4941 J [1] RING-BACKUP  
16. 165-9291 J [1] SEAL-LIP TYPE  
17. 247-8904 [1] ROD AS  
17A. 087-5548 [1] BUSHING  
   
    AVAILABLE REPAIR KIT(S):
  333-8750 J [1] KIT-SEAL (BUCKET CYLINDER)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP30750404
 

259-0759: CYLINDER GP-BUCKET

259-0759 CYLINDER GP-BUCKET
S/N AKJ1-UP; AKX1-UP
160-MM (6.3-IN) BORE X 1356-MM (53.4-IN) STROKE
PART OF 259-0758 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT
i02504696 SEBP3075
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Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9X-3604 J [1] SEAL AS  
2. 118-3936 [1] CYLINDER AS  
2A. 087-5533 [1] BUSHING  
3. 123-2111 [1] PISTON  
4. 123-2112 M [1] LOCKNUT-SPECIAL (M90X2-THD)  
5. 247-8905 [1] ROD AS  
5A. 087-5548 [1] BUSHING  
6. 259-0734 J [1] SEAL-U-CUP  
7. 266-7957 J [1] SEAL-BUFFER  
8. 266-7960 J [1] SEAL-O-RING  
9. 7Y-4941 J [1] RING-BACKUP  
10. 7Y-4944 [1] RING-RETAINING  
11. 087-5551 [1] HEAD  
12. 165-9291 J [1] SEAL-LIP TYPE  
13. 087-5550 J [1] RING-BACKUP  
14. 096-3201 J [1] RING  
15. 114-0762 [1] BUSHING  
16. 118-3944 J [1] RING  
17. 7Y-5239 M [8] BOLT-SOCKET HEAD (M24X3X100-MM)  
   
    AVAILABLE REPAIR KIT(S):
  259-0756 J [1] KIT-SEAL (CYLINDER)(BUCKET)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP30750405
 

259-0763: CYLINDER GP-BUCKET

259-0763 CYLINDER GP-BUCKET
S/N AKJ1-UP; AKX1-UP
170-MM (6.7-IN) BORE X 1366-MM (53.8-IN) STROKE
PART OF 259-0762 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT
i02504711 SEBP3075
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Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7I-7181 [1] PISTON  
2. 7Y-4932 [1] HEAD  
3. 7Y-4956 M [1] LOCKNUT (M90X2-THD)  
4. 9X-3607 J [1] SEAL AS  
5. 096-5609 J [1] RING  
6. 105-7262 J [1] RING-WEAR  
7. 129-7866 [1] CYLINDER AS  
  129-7869 [1] CAP AS  
8. 247-8898 [1] ROD AS  
8A. 4I-1520 [1] BUSHING  
9. 259-0734 J [1] SEAL-U-CUP  
10. 266-7957 J [1] SEAL-BUFFER  
11. 266-7961 J [1] SEAL-O-RING  
12. 7Y-4941 J [1] RING-BACKUP  
13. 7Y-4944 [1] RING-RETAINING  
14. 165-9291 J [1] SEAL-LIP TYPE  
15. 114-0761 [1] BUSHING  
16. 7Y-4945 J [1] RING-BACKUP  
17. 7Y-5239 M [8] BOLT-SOCKET HEAD (M24X3X100-MM)  
   
    AVAILABLE REPAIR KIT(S):
  259-0764 J [1] KIT-SEAL (CYLINDER)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP30750406
 

123-1078: CYLINDER GP-COUNTERWEIGHT

123-1078 CYLINDER GP-COUNTERWEIGHT
S/N AKJ1-UP; AKX1-UP
120.6MM (4.75IN) BORE X 810MM (31.89IN) STROKE
PART OF 126-2085 CYLINDER & SEAL GP-CTWT
AN ATTACHMENT
i01308534 SEBP3075
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Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 123-1079 [1] CYLINDER AS  
1A. 123-3790 [1] BUSHING  
2. 5J-3488 [1] LOCKNUT (2-1/4-12-THD)  
3. 5J-4987 [1] SEAL AS  
4. 8T-8390 [1] RING-WEAR  
5. 139-3326 [1] PISTON  
6. 2J-3961 [1] RING-BACKUP  
7. 5F-3144 [1] SEAL-O-RING  
8. 114-8135 [1] HEAD  
  225-3284 [1] SEAL-WIPER  
9. 123-1082 [1] ROD AS  
9A. 123-3790 [1] BUSHING  
10. 7M-2275 [1] RING-RETAINING  
11. 8C-5218 [1] SEAL-LIP TYPE  
12. 5J-8300 [1] SEAL-U-CUP  
13. 8C-9126 [1] SEAL AS  
14. 8C-9161 [1] RING-WEAR  
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP30750407
 

520-8646: CYLINDER GP-COUPLER

520-8646 CYLINDER GP-COUPLER
S/N AKX1-UP
101.6-MM (4-IN) BORE X 164.9-MM (6.5-IN) STROKE
PART OF 527-3997 COUPLER GP-QUICK
AN ATTACHMENT
i07016196 SEBP3075
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Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 237-0947 J [1] VALVE GP-CHECK (PILOT OPERATED)  
2. 3J-1907 [1] SEAL-O-RING  
3. 3J-7354 [1] SEAL-O-RING  
4. 9S-8002 [1] PLUG (7/16-20-THD)  
5. 9S-8004 [1] PLUG (9/16-18-THD)  
6. 9F-2167 [1] SCREW-PURGE (3/8-24X1.164-IN)  
   
    AVAILABLE REPAIR KIT(S):
  213-8433 J [1] KIT-SEAL (CHECK VALVE)  
  453-6522 [1] KIT-PACKING (COUPLER CYLINDER)  
    (INCLUDES O-RINGS, BACKUP RINGS & SEALS)
  J   KIT MARKED J SERVICES PART(S) MARKED J
 

#SEBP30750408
 

129-7832: CYLINDER GP-STICK

129-7832 CYLINDER GP-STICK
S/N AKJ1-UP; AKX1-UP
190-MM (7.5-IN) BORE X 1758-MM (69.2-IN) STROKE
PART OF 129-7831 CYLINDER & SEAL GP-STICK
AN ATTACHMENT
i01287501 SEBP3075
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Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 129-7893 [1] CYLINDER AS  
1A. 126-1956 [1] BUSHING  
2. 103-8345 [1] RING-RETAINING  
3. 107-6579 [1] RING  
4. 103-8353 [1] STOP  
5. 126-1971 M [1] LOCKNUT-SPECIAL  
6. 126-1974 J [1] RING  
7. 125-1286 J [1] SEAL AS  
8. 126-1976 J [1] RING  
9. 126-1973 [1] PISTON  
10. 087-5389 J [1] RING-SEAL  
11. 087-5390 [1] STOP  
12. 095-1730 J [1] SEAL-O-RING  
13. 126-1978 J [1] RING-BACKUP  
14. 087-5393 [1] RING-RETAINING  
15. 114-0763 [1] BUSHING  
16. 126-2047 [1] HEAD  
17. 170-9850 J [1] SEAL-BUFFER  
18. 087-5396 J [1] SEAL-U-CUP  
19. 087-5397 J [1] RING-BACKUP  
20. 165-9293 J [1] SEAL-LIP TYPE  
21. 129-7898 [1] ROD AS  
21A. 151-0650 [1] BUSHING  
22. 7X-2489 M [10] BOLT (M24X3X100-MM)  
23. 095-0930 [2] RING-RETAINING (EXTERNAL)  
   
    AVAILABLE REPAIR KIT(S):
  200-3498 J [1] KIT-SEAL (STICK CYLINDER)  
  J   KIT MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP30750409
 

200-3525: CYLINDER GP-STICK

200-3525 CYLINDER GP-STICK
S/N AKJ1-UP; AKX1-UP
190MM (7.5IN) BORE X 1758MM (69.2IN) STROKE
PART OF 129-7831 CYLINDER & SEAL GP-STICK
Type 1
AN ATTACHMENT
i01898023 SEBP3075
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Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 129-7893 [1] CYLINDER AS  
1A. 126-1956 [1] BUSHING  
2. 103-8345 [1] RING-RETAINING  
3. 107-6579 [1] RING  
4. 103-8353 [1] STOP  
5. 126-1971 M [1] LOCKNUT-SPECIAL  
6. 126-1974 J [1] RING  
7. 125-1286 J [1] SEAL AS  
8. 126-1976 J [1] RING  
9. 126-1973 [1] PISTON  
10. 215-9866 J [1] RING-SEAL  
11. 087-5390 [1] STOP  
12. 095-1730 J [1] SEAL-O-RING  
13. 126-1978 J [1] RING-BACKUP  
14. 087-5393 [1] RING-RETAINING  
15. 114-0763 [1] BUSHING  
16. 126-2047 [1] HEAD  
17. 170-9850 J [1] SEAL-BUFFER  
18. 216-0008 J SEAL-U-CUP  
19. 087-5397 J [1] RING-BACKUP  
20. 165-9293 J [1] SEAL-LIP TYPE  
21. 200-3527 [1] ROD AS  
21A. 151-0650 [1] BUSHING  
22. 7X-2489 M [10] BOLT (M24X3X100-MM)  
23. 095-0930 [2] RING-RETAINING (EXTERNAL)  
   
    AVAILABLE REPAIR KIT(S):
  200-3571 J [1] KIT-SEAL (STICK CYLINDER)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

Information:

Special Instruction
Installation of Vented Buffer Seal Assembly, U-Cup Seal, and Double Lip Wiper Seal for Hydraulic Cylinders{7562}
Installation of Vented Buffer Seal Assembly, U-Cup Seal, and Double Lip Wiper Seal for Hydraulic Cylinders{7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}
Installation of Double Lip Wiper Seal{7562}
Technical Information Bulletin
Surface Finishes of Cylinder Bores{7562}
Surface Finishes of Cylinder Bores{7562}
Color Change for Cylinder Rod Seals (Wiper, U-Cup and Buffer){5100, 7555, 7562}
Color Change for Cylinder Rod Seals (Wiper, U-Cup and Buffer){5100, 7555, 7562}
Tool Operating Manual
Procedures for Using the 232-4686 Cylinder Washer Tank Group European Union Compliant{0374, 0599, 0680, 0738}
Procedures for Using the 232-4686 Cylinder Washer Tank Group European Union Compliant{0374, 0599, 0680, 0738}
1U-9001 and 1U-9002 Automatic Hone Tooling{0599, 0677, 0738, 7562, 7562}
1U-9001 and 1U-9002 Automatic Hone Tooling{0599, 0677, 0738, 7562, 7562}
Model HCS-40 Hydraulic Cylinder Servicer{0374, 0599, 0700, 0738, 7562}
Model HCS-40 Hydraulic Cylinder Servicer{0374, 0599, 0700, 0738, 7562}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
Using the 265-4177, 265-4209 Service Tool Groups to Install Sensors in Position-Sensing Hydraulic Cylinders{0599, 0709, 0738, 1439, 7562, 7562}
Using the 265-4177, 265-4209 Service Tool Groups to Install Sensors in Position-Sensing Hydraulic Cylinders{0599, 0709, 0738, 1439, 7562, 7562}
Using the 9U-7868 and 9U-7869 Spanner Wrench to Remove and install Threaded Gland Cylinder Heads{0374, 0599, 0602, 0738}
Using the 9U-7868 and 9U-7869 Spanner Wrench to Remove and install Threaded Gland Cylinder Heads{0374, 0599, 0602, 0738}
Procedures for Using the 120-9143 Cylinder Washer Tank Group {0374, 0602, 0680, 0738}
Procedures for Using the 120-9143 Cylinder Washer Tank Group {0374, 0602, 0680, 0738}
Service Magazine

Caterpillar Parts SIS Catalog 345B II :

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