AVSPARE.COM
parts catalog
  1. Home
  2. Caterpillar catalog

128-4878 CYLINDER & SEAL GP-BOOM S/N 6WL1-UP PART OF 128-4345 BOOM AR, 128-4367, 166-0064 BOOM AR-MATERIAL HANDLING, 178-9912 CYLINDER & LINES AR-BOOM AN ATTACHMENT M320


HYDRAULIC SYSTEM
CYLINDER GP

EXCAVATOR M320 EXCAVATOR 6WL
 M320 Excavator 6WL00001-UP (MACHINE) POWERED BY 3116 Engine SEBP2612 M320 6WL   (2015)

HYDRAULIC SYSTEM

CYLINDER GP
CYLINDER & SEAL GP-BOOM
127-9235 CYLINDER & SEAL GP-BOOM
CYLINDER & SEAL GP-BOOM
127-9239 CYLINDER & SEAL GP-BOOM
CYLINDER & SEAL GP-BOOM
128-4878 CYLINDER & SEAL GP-BOOM
CYLINDER & SEAL GP-BUCKET
7Y-5199 CYLINDER & SEAL GP-BUCKET
CYLINDER & SEAL GP-STICK
127-9237 CYLINDER & SEAL GP-STICK
CYLINDER & SEAL GP-STICK
138-6704 CYLINDER & SEAL GP-STICK
 

#SEBP26120330
 

128-4878: CYLINDER & SEAL GP-BOOM

128-4878 CYLINDER & SEAL GP-BOOM
S/N 6WL1-UP
PART OF 128-4345 BOOM AR, 128-4367, 166-0064 BOOM AR-MATERIAL HANDLING, 178-9912 CYLINDER & LINES AR-BOOM
AN ATTACHMENT
i00555339 SEBP2612
1284878 CYLINDER & SEAL GP-BOOM Parts scheme
  For full view, you need register

Parts for your M320 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7X-4803 [2] SEAL-LIP TYPE  
2. 096-0854 [2] SEAL-LIP TYPE  
3. 128-3203 Y [1] CYLINDER GP-BOOM  
  Y   SEPARATE ILLUSTRATION
 

#SEBP26120331
 

7Y-5199: CYLINDER & SEAL GP-BUCKET

7Y-5199 CYLINDER & SEAL GP-BUCKET
S/N 6WL1-UP
PART OF 128-4373, 128-4377 LINKAGE AR-BUCKET
AN ATTACHMENT
i00792440 SEBP2612
7Y5199 CYLINDER & SEAL GP-BUCKET Parts scheme
  For full view, you need register

Parts for your M320 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3B-8489 [2] FITTING-GREASE (1/8-27 PTF)  
2. 087-5633 Y [1] CYLINDER GP-BUCKET  
3. 096-0854 [2] SEAL-LIP TYPE  
4. 093-1434 [2] SEAL-LIP TYPE  
  Y   SEPARATE ILLUSTRATION
 

#SEBP26120332
 

127-9237: CYLINDER & SEAL GP-STICK

127-9237 CYLINDER & SEAL GP-STICK
S/N 6WL1-UP
PART OF 128-4345 BOOM AR, 128-4356 BOOM AR-VARIABLE ADJUSTABLE
AN ATTACHMENT
i00519126 SEBP2612
1279237 CYLINDER & SEAL GP-STICK Parts scheme
  For full view, you need register

Parts for your M320 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 096-0854 [4] SEAL-LIP TYPE  
2. 127-9242 Y [1] CYLINDER GP-STICK  
  Y   SEPARATE ILLUSTRATION
 

#SEBP26120333
 

138-6704: CYLINDER & SEAL GP-STICK

138-6704 CYLINDER & SEAL GP-STICK
S/N 6WL1-UP
PART OF 202-4814, 202-4815 BOOM AR, 128-4367, 166-0064 BOOM AR-MATERIAL HANDLING
AN ATTACHMENT
i00562981 SEBP2612
1386704 CYLINDER & SEAL GP-STICK Parts scheme
  For full view, you need register

Parts for your M320 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 096-0854 [4] SEAL-LIP TYPE  
2. 138-6696 Y [1] CYLINDER GP-STICK  
  Y   SEPARATE ILLUSTRATION
 

#SEBP26120334
 

8U-6848: CYLINDER GP-AXLE OSC LOCK

8U-6848 CYLINDER GP-AXLE OSC LOCK
S/N 6WL1-UP
PART OF 111-1897 CYLINDER & MTG GP-AXLE LOCK
i00427503 SEBP2612
8U6848 CYLINDER GP-AXLE OSC LOCK Parts scheme
  For full view, you need register

Parts for your M320 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8U-1965 [1] CYLINDER  
2. 5W-5276 [1] VALVE (HYDRAULIC CHECK)  
3. 8U-1966 [1] HOUSING  
4. 5W-5273 [1] PISTON  
5. 5W-5272 [1] GUIDE-TAPPET  
6. 5W-5271 [1] TAPPET  
7. 8U-1967 [1] PISTON  
8. 5W-5162 [1] SPRING  
9. 8U-2918 J [1] RING-SCRAPER  
10. 8U-6849 J [1] RING  
11. 5W-4882 J [1] SPACER  
12. 8U-6850 J [1] SEAL-O-RING  
13. 5W-4877 J [1] SEAL-O-RING  
14. 5W-4881 J [1] SEAL-O-RING  
15. 095-1751 J [1] SEAL-O-RING  
16. 5W-5108 J [1] RING  
17. 105-3480 M [4] BOLT-SOCKET HEAD (M5X0.8X16-MM)  
18. 5W-1453 [4] LOCKWASHER  
19. 9S-8002 [1] PLUG (7/16-20-THD)  
20. 3J-7354 [1] SEAL-O-RING  
21. 9S-8005 [1] PLUG (3/4-16-THD)  
22. 3K-0360 [1] SEAL-O-RING  
23. 9S-9334 [1] PLUG  
24. 7M-8485 [1] SEAL-O-RING  
   
    AVAILABLE REPAIR KIT(S):
  8U-6851 J [1] KIT-REPAIR (AXLE OSC LOCK CYLINDER)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP26120335
 

133-6935: CYLINDER GP-BLADE

133-6935 CYLINDER GP-BLADE
S/N 6WL1-UP
PART OF 128-4339 BLADE AR
AN ATTACHMENT
i00503522 SEBP2612
1336935 CYLINDER GP-BLADE Parts scheme
  For full view, you need register

Parts for your M320 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 135-7924 [1] CYLINDER  
2. 118-3112 [1] ROD  
3. 135-7925 [1] PISTON  
4. 135-7926 [1] COLLAR  
5. 142-1621 [1] PISTON  
6. 118-3116 [1] RETAINER  
7. 118-3117 [1] CONE  
8. 5W-1274 [2] PLUG  
9. 118-3119 J [1] SEAL  
10. 118-3120 J [1] RING  
11. 118-3121 J [2] RING  
12. 112-6920 J [1] SEAL-O-RING  
13. 125-9695 J [1] RING-BACKUP  
14. 125-9701 J [1] SEAL-O-RING  
15. 125-9696 J [1] RING  
16. 125-9697 J [1] SEAL-O-RING  
17. 125-9698 J [1] RING-BACKUP  
18. 125-9699 J [1] RING  
19. 118-3128 J [1] SEAL-O-RING  
20. 118-3129 J [1] RING-BACKUP  
21. 4J-5351 J [3] SEAL-O-RING  
22. 118-3130 J [2] RING-BACKUP  
23. 118-3131 J [2] SEAL-O-RING  
24. 118-3132 [2] SPRING  
25. 118-3133 M [1] NUT (M45X1.5-THD)  
26. 118-2731 [1] PIN  
27. 118-3134 [2] BEARING  
28. 118-2732 [2] FITTING-GREASE  
29. 142-1622 [1] RETAINER  
30. 142-1623 [1] PIN  
   
    AVAILABLE REPAIR KIT(S):
  135-7927 J [1] KIT-SEAL  
  J   KIT MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
 

#SEBP26120336
 

127-9241: CYLINDER GP-BOOM

127-9241 CYLINDER GP-BOOM
S/N 6WL1-UP
130MM (51.19IN) BORE X 930MM (36.5IN) STROKES
PART OF 127-9235 CYLINDER & SEAL GP-BOOM
AN ATTACHMENT
i00554414 SEBP2612
1279241 CYLINDER GP-BOOM Parts scheme
  For full view, you need register

Parts for your M320 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6I-6784 J [1] RING-SEAL  
2. 7I-7183 [1] PISTON  
3. 7Y-4622 [1] LOCKNUT (SPECIAL)  
4. 7Y-4628 J [1] RING (BACKUP)  
5. 216-0004 J [1] SEAL-U-CUP  
6. 170-9846 J [1] SEAL-BUFFER  
7. 7Y-4631 [1] RING-RETAINING  
8. 7Y-4633 J [1] RING-BACKUP  
9. 9X-3595 J [1] SEAL AS  
10. 7Y-5216 M [8] BOLT-SOCKET HEAD (M20X2.5X80-MM)  
11. 087-5005 [1] STOP  
12. 165-9288 J [1] SEAL-LIP TYPE  
13. 118-4019 J [1] RING  
14. 128-0099 [1] ROD & BEARING AS-CYLINDER  
14A. 143-3842 BUSHING  
15. 128-0102 [1] HEAD  
16. 128-9260 [1] BUSHING  
17. 135-8521 [1] CYLINDER AS  
17A. 143-3841 [1] BUSHING  
18. 095-1631 J [1] SEAL-O-RING  
19. 7Y-4632 J [1] RING  
   
    AVAILABLE REPAIR KIT(S):
  233-0761 J [1] KIT-SEAL (BOOM CYLINDER)  
  J   KIT MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP26120337
 

128-3203: CYLINDER GP-BOOM

128-3203 CYLINDER GP-BOOM
S/N 6WL1-UP
130MM (5.12IN) BORE X 930MM (36.5IN) STROKE
PART OF 202-4814, 202-4815 BOOM AR, 128-4878 CYLINDER & SEAL GP-BOOM
AN ATTACHMENT
i00566449 SEBP2612
1283203 CYLINDER GP-BOOM Parts scheme
  For full view, you need register

Parts for your M320 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9X-3595 J [1] SEAL AS  
2. 128-0102 [1] HEAD  
3. 7Y-4631 [1] RING-RETAINING  
4. 7Y-4622 [1] LOCKNUT (SPECIAL)  
5. 118-4019 J [1] RING  
6. 087-5005 [1] STOP  
7. 7Y-4633 J [1] RING-BACKUP  
8. 7Y-4632 J [1] RING  
9. 128-9260 [1] BUSHING  
10. 095-1631 J [1] SEAL-O-RING  
11. 6I-6784 J [1] RING-SEAL  
12. 7I-7183 [1] PISTON  
13. 7Y-5216 M [8] BOLT-SOCKET HEAD (M20X2.5X80-MM)  
14. 165-9288 J [1] SEAL-LIP TYPE  
15. 7Y-4628 J [1] RING (BACKUP)  
16. 216-0004 J [1] SEAL-U-CUP  
17. 170-9846 J [1] SEAL-BUFFER  
18. 135-8521 [1] CYLINDER AS  
18A. 143-3841 [1] BUSHING  
20. 172-1025 [1] ROD & BEARING AS-CYLINDER  
20A. 171-6546 [1] BUSHING  
   
    AVAILABLE REPAIR KIT(S):
  233-0761 J [1] KIT-SEAL (BOOM CYLINDER)  
  J   KIT MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP26120338
 

087-5633: CYLINDER GP-BUCKET

087-5633 CYLINDER GP-BUCKET
S/N 6WL1-UP
120MM (4.72IN) BORE X 1030MM (40.5IN) STROKE
PART OF 7Y-5199 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT
i00795630 SEBP2612
0875633 CYLINDER GP-BUCKET Parts scheme
  For full view, you need register

Parts for your M320 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4I-1040 [1] CYLINDER AS  
1A. 7Y-5131 [1] BUSHING  
2. 087-5504 [1] LOCKNUT  
3. 118-4130 J [1] RING  
4. 9X-3592 J [1] SEAL AS  
5. 093-1630 J [1] RING  
6. 127-6052 [1] PISTON  
7. 095-1717 J [1] SEAL-O-RING  
8. 087-5510 J [1] RING  
9. 7Y-5216 M [8] BOLT-SOCKET HEAD (M20X2.5X80-MM)  
10. 7Y-5119 [1] RING-RETAINING  
11. 126-2043 [1] HEAD  
12. 114-0756 [1] BUSHING  
13. 123-1943 J [1] SEAL-BUFFER  
14. 7Y-5117 J [1] SEAL-U-CUP  
15. 7Y-5116 J [1] RING  
16. 114-0644 J [1] SEAL-LIP TYPE  
17. 127-6089 [1] ROD AS  
17A. 4I-0704 [1] BUSHING  
   
    AVAILABLE REPAIR KIT(S):
  118-4131 J [1] KIT-SEAL  
  J   KIT MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
 

#SEBP26120339
 

185-1736: CYLINDER GP-BUCKET

185-1736 CYLINDER GP-BUCKET
S/N 6WL1-UP
100-MM (3.9-IN) BORE X 250-MM (9.8-IN) STROKE
PART OF 117-0931, 125-4428 LINKAGE AR-BUCKET
AN ATTACHMENT
i01256705 SEBP2612
1851736 CYLINDER GP-BUCKET Parts scheme
  For full view, you need register

Parts for your M320 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 185-1735 [1] CYLINDER AS  
2. 8U-3885 [1] ROD  
3. 8U-3886 J [3] SEAL  
4. 8U-3887 J [1] SEAL  
5. 234-4855 J [1] SEAL  
6. 8T-0707 [4] RING-RETAINING (INTERNAL)  
7. 8G-4189 [2] BEARING-SELF-ALIGNING  
   
    AVAILABLE REPAIR KIT(S):
  8U-3888 J KIT-REPAIR (BUCKET CYLINDER)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
 

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}
2011/10/17
A Rework Procedure Improves the Seal Assembly Performance in Hydraulic Cylinders on Cat Products {7562}
2010/04/30

Caterpillar Parts SIS Catalog M320 :

CYLINDER & SEAL GP-BOOM
127-9239 CYLINDER & SEAL GP-BOOM
CYLINDER & SEAL GP-BOOM
127-9235 CYLINDER & SEAL GP-BOOM
CYLINDER & MTG GP-AXLE LOCK
111-1897 CYLINDER & MTG GP-AXLE LOCK
178-9912 CYLINDER & LINES AR-BOOM
COVER GP-VALVE
114-0208 COVER GP-VALVE
COUPLING GP-PUMP
134-9680 COUPLING GP-PUMP
COUPLING GP-FLEXIBLE
142-0467 COUPLING GP-FLEXIBLE
134-9717 COUPLING GP-FLEXIBLE
CYLINDER & SEAL GP-BUCKET
7Y-5199 CYLINDER & SEAL GP-BUCKET
CYLINDER & SEAL GP-STICK
127-9237 CYLINDER & SEAL GP-STICK
CYLINDER & SEAL GP-STICK
138-6704 CYLINDER & SEAL GP-STICK
CYLINDER GP-AXLE OSC LOCK
8U-6848 CYLINDER GP-AXLE OSC LOCK
CYLINDER GP-BLADE
133-6935 CYLINDER GP-BLADE
CYLINDER GP-BOOM
127-9241 CYLINDER GP-BOOM
CYLINDER GP-BOOM
128-3203 CYLINDER GP-BOOM
CYLINDER GP-BUCKET
087-5633 CYLINDER GP-BUCKET

Truck sale:

Caterpillar M320
 
Caterpillar M320
- wheel excavator
MILTON CAT
 
25.206 
Caterpillar M320, mobilbagger, Bau-Und Bergbauausrüstung
- wheel excavator
ZEPPELIN BAUMASCHINEN
Caterpillar M320F, mobilbagger, Bau-Und Bergbauausrüstung
332.000 
Caterpillar M320F, mobilbagger, Bau-Und Bergbauausrüstung
- wheel excavator
NMC
Caterpillar M320, mobilbagger, Bau-Und Bergbauausrüstung
40.229 
Caterpillar M320, mobilbagger, Bau-Und Bergbauausrüstung
- wheel excavator
MILTON CAT
 
91.732 
Caterpillar HM 320 130, ag - hammer, Bau-Und Bergbauausrüstung
- hammer
WHEELER MACHINERY CO.
Back to top
Contacts Request list Affiliate disclosure
The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
AVSpare.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only. Cat® and Caterpillar® are registered trademarks of Caterpillar, Inc.