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266-8068 CYLINDER AR-BOOM -COLD WEATHER, T-FAMILY S/N ALD1-UP AN ATTACHMENT 345B II EXCAVATOR


HYDRAULIC SYSTEM
CYLINDER GP

EXCAVATOR 345B II EXCAVATOR ALD
 345B Series II Excavators ALD00001-UP (MACHINE) POWERED BY 3176C Engine SEBP3076 345B II ALD   (1999)

HYDRAULIC SYSTEM

CYLINDER GP
CYLINDER & SEAL GP-STICK
129-7831 CYLINDER & SEAL GP-STICK
CYLINDER & SEAL GP-STICK
259-0770 CYLINDER & SEAL GP-STICK
266-8068 CYLINDER AR-BOOM
266-8069 CYLINDER AR-BOOM
CYLINDER GP-BOOM
129-7829 CYLINDER GP-BOOM
CYLINDER GP-BOOM
200-3535 CYLINDER GP-BOOM
 

#SEBP30760370
 

266-8068: CYLINDER AR-BOOM

266-8068 CYLINDER AR-BOOM -COLD WEATHER, T-FAMILY
S/N ALD1-UP
AN ATTACHMENT
i02504675 SEBP3076
  For full view, you need register

Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  259-0752 Y [1] CYLINDER & LINES GP-BOOM (LH)  
  259-0753 Y [1] CYLINDER & LINES GP-BOOM (RH)  
  259-0757 Y [1] CYLINDER & LINES GP-BUCKET  
  259-0769 Y [1] CYLINDER & LINES GP-STICK  
  Y   SEPARATE ILLUSTRATION
 

#SEBP30760371
 

266-8069: CYLINDER AR-BOOM

266-8069 CYLINDER AR-BOOM -COLD WEATHER, U-FAMILY
S/N ALD1-UP
AN ATTACHMENT
i02504708 SEBP3076
  For full view, you need register

Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  259-0752 Y [1] CYLINDER & LINES GP-BOOM (LH)  
  259-0753 Y [1] CYLINDER & LINES GP-BOOM (RH)  
  259-0761 Y [1] CYLINDER & LINES GP-BUCKET  
  259-0769 Y [1] CYLINDER & LINES GP-STICK  
  Y   SEPARATE ILLUSTRATION
 

#SEBP30760372
 

129-7829: CYLINDER GP-BOOM

129-7829 CYLINDER GP-BOOM
S/N ALD1-UP
160-MM (6.3-IN) BORE X 1575-MM (62-IN) STROKE
PART OF 129-7828 CYLINDER & SEAL GP-BOOM
AN ATTACHMENT
i01287533 SEBP3076
1297829 CYLINDER GP-BOOM Parts scheme
  For full view, you need register

Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 129-7879 [1] CYLINDER AS  
1A. 148-3091 [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. 6I-6785 J [1] RING-SEAL  
8. 126-2084 [1] STOP  
9. 095-1635 J [1] SEAL-O-RING  
10. 087-5550 J [1] RING-BACKUP  
11. 7Y-4944 [1] RING-RETAINING  
12. 087-5551 [1] HEAD  
13. 114-0762 [1] BUSHING  
14. 128-9266 J [1] SEAL-BUFFER  
15. 7Y-4942 J [1] SEAL-U-CUP  
16. 7Y-4941 J [1] RING-BACKUP  
17. 165-9291 J [1] SEAL-LIP TYPE  
18. 129-7885 [1] ROD AS  
18A. 141-3420 [1] BUSHING  
19. 7Y-5239 M [8] BOLT-SOCKET HEAD (M24X3X100-MM)  
   
    AVAILABLE REPAIR KIT(S):
  168-0760 J [1] KIT-SEAL (BOOM CYLINDER)  
  J   KIT MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP30760373
 

200-3535: CYLINDER GP-BOOM

200-3535 CYLINDER GP-BOOM
S/N ALD1-UP
160-MM (6.3-IN) BORE X 1575-MM (62-IN) STROKE
PART OF 129-7828 CYLINDER & SEAL GP-BOOM
AN ATTACHMENT
i01898025 SEBP3076
2003535 CYLINDER GP-BOOM Parts scheme
  For full view, you need register

Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 129-7879 [1] CYLINDER AS  
1A. 148-3091 [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. 191-3128 J [1] RING-SEAL  
8. 126-2084 [1] STOP  
9. 095-1635 J [1] SEAL-O-RING  
10. 087-5550 J [1] RING-BACKUP  
11. 7Y-4944 [1] RING-RETAINING  
12. 358-8528 [1] HEAD  
13. 114-0762 [1] BUSHING  
14. 128-9266 J [1] SEAL-BUFFER  
15. 170-9865 J [1] SEAL-U-CUP  
16. 7Y-4941 J [1] RING-BACKUP  
17. 165-9291 J [1] SEAL-LIP TYPE  
18. 200-3537 [1] ROD AS  
18A. 141-3420 [1] BUSHING  
19. 7Y-5239 M [8] BOLT-SOCKET HEAD (M24X3X100-MM)  
   
    AVAILABLE REPAIR KIT(S):
  200-3572 J [1] KIT-SEAL (BOOM CYLINDER)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP30760374
 

259-0755: CYLINDER GP-BOOM

259-0755 CYLINDER GP-BOOM
S/N ALD1-UP
160-MM (6.3-IN) BORE X 1575-MM (62-IN) STROKE
PART OF 259-0754 CYLINDER & SEAL GP-BOOM
AN ATTACHMENT
i02504689 SEBP3076
2590755 CYLINDER GP-BOOM Parts scheme
  For full view, you need register

Parts for your 345B II EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9X-3604 J [1] SEAL AS  
2. 123-2111 [1] PISTON  
3. 123-2112 M [1] LOCKNUT-SPECIAL (M90X2-THD)  
4. 126-2084 [1] STOP  
5. 129-7879 [1] CYLINDER AS  
5A. 148-3091 [1] BUSHING  
6. 191-3128 J [1] RING-SEAL  
7. 200-3537 [1] ROD AS  
7A. 141-3420 [1] BUSHING  
8. 259-0734 J [1] SEAL-U-CUP  
9. 266-7957 J [1] SEAL-BUFFER  
10. 266-7960 J [1] SEAL-O-RING  
11. 7Y-4941 J [1] RING-BACKUP  
12. 7Y-4944 [1] RING-RETAINING  
13. 087-5551 [1] HEAD  
14. 165-9291 J [1] SEAL-LIP TYPE  
15. 087-5550 J [1] RING-BACKUP  
16. 096-3201 J [1] RING  
17. 114-0762 [1] BUSHING  
18. 118-3944 J [1] RING  
19. 7Y-5239 M [8] BOLT-SOCKET HEAD (M24X3X100-MM)  
   
    AVAILABLE REPAIR KIT(S):
  259-0756 J [1] KIT-SEAL (CYLINDER)(BOOM)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP30760375
 

118-3935: CYLINDER GP-BUCKET

118-3935 CYLINDER GP-BUCKET
S/N ALD1-UP
160-MM (6.3IN) BORE X 1356-MM (53.4-IN) STROKE
PART OF 118-3934 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT
i01265194 SEBP3076
1183935 CYLINDER GP-BUCKET Parts scheme
  For full view, you need register

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. 128-9266 J [1] SEAL-BUFFER  
12. 087-5551 [1] HEAD  
13. 7Y-5239 M [8] BOLT-SOCKET HEAD (M24X3X100-MM)  
14. 170-9865 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):
  215-9989 J [1] KIT-SEAL (BUCKET CYLINDER)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP30760376
 

129-7835: CYLINDER GP-BUCKET

129-7835 CYLINDER GP-BUCKET
S/N ALD1-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 SEBP3076
1297835 CYLINDER GP-BUCKET Parts scheme
  For full view, you need register

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
 

#SEBP30760377
 

173-3541: CYLINDER GP-BUCKET

173-3541 CYLINDER GP-BUCKET
S/N ALD1-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 SEBP3076
1733541 CYLINDER GP-BUCKET Parts scheme
  For full view, you need register

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
 

#SEBP30760378
 

173-3545: CYLINDER GP-BUCKET

173-3545 CYLINDER GP-BUCKET
S/N ALD1-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 SEBP3076
1733545 CYLINDER GP-BUCKET Parts scheme
  For full view, you need register

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
 

#SEBP30760379
 

225-4529: CYLINDER GP-BUCKET

225-4529 CYLINDER GP-BUCKET
S/N ALD1-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 SEBP3076
2254529 CYLINDER GP-BUCKET Parts scheme
  For full view, you need register

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
 

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
Double Lip Wiper Seals Must Be Installed Properly {7562}
2002/12/09
Procedure Now Available to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
2012/10/04
Compatible Puller Stud and Hydraulic Cylinder Capacity Chart {0599, 7000, 7562}
2009/01/05
A Rework Procedure Improves the Seal Assembly Performance in Hydraulic Cylinders on Cat Products {7562}
2010/04/30

Caterpillar Parts SIS Catalog 345B II :

CYLINDER & SEAL GP-STICK
259-0770 CYLINDER & SEAL GP-STICK
CYLINDER & SEAL GP-STICK
129-7831 CYLINDER & SEAL GP-STICK
CYLINDER & SEAL GP-STICK
129-7831 CYLINDER & SEAL GP-STICK
CYLINDER & SEAL GP-BUCKET
259-0762 CYLINDER & SEAL GP-BUCKET
CYLINDER & SEAL GP-BUCKET
259-0758 CYLINDER & SEAL GP-BUCKET
CYLINDER & SEAL GP-BUCKET
225-4528 CYLINDER & SEAL GP-BUCKET
CYLINDER & SEAL GP-BUCKET
173-3544 CYLINDER & SEAL GP-BUCKET
CYLINDER & SEAL GP-BUCKET
173-3540 CYLINDER & SEAL GP-BUCKET
266-8069 CYLINDER AR-BOOM
CYLINDER GP-BOOM
129-7829 CYLINDER GP-BOOM
CYLINDER GP-BOOM
200-3535 CYLINDER GP-BOOM
CYLINDER GP-BOOM
259-0755 CYLINDER GP-BOOM
CYLINDER GP-BUCKET
118-3935 CYLINDER GP-BUCKET
CYLINDER GP-BUCKET
129-7835 CYLINDER GP-BUCKET
CYLINDER GP-BUCKET
173-3541 CYLINDER GP-BUCKET
CYLINDER GP-BUCKET
173-3545 CYLINDER GP-BUCKET

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