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120-6579 CYLINDER & SEAL GP-BUCKET S/N 6TL410-UP PART OF 118-5506, 118-5510 LINKAGE AR-BUCKET AN ATTACHMENT M312


HYDRAULIC SYSTEM
CYLINDER GP

EXCAVATOR M312 EXCAVATOR 6TL
 M312 Excavator 6TL00410-UP (MACHINE) POWERED BY 3054 Engine SEBP2851 M312 6TL   (1988)

HYDRAULIC SYSTEM

CYLINDER GP
CYLINDER & SEAL GP-BOOM
120-6577 CYLINDER & SEAL GP-BOOM
CYLINDER & SEAL GP-BOOM
120-6578 CYLINDER & SEAL GP-BOOM
CYLINDER & SEAL GP-BUCKET
120-6579 CYLINDER & SEAL GP-BUCKET
CYLINDER & SEAL GP-STICK
120-6576 CYLINDER & SEAL GP-STICK
CYLINDER GP-AXLE OSC LOCK
8U-4461 CYLINDER GP-AXLE OSC LOCK
CYLINDER GP-BLADE
142-1625 CYLINDER GP-BLADE
 

#SEBP28510340
 

120-6579: CYLINDER & SEAL GP-BUCKET

120-6579 CYLINDER & SEAL GP-BUCKET
S/N 6TL410-UP
PART OF 118-5506, 118-5510 LINKAGE AR-BUCKET
AN ATTACHMENT
i00474544 SEBP2851
1206579 CYLINDER & SEAL GP-BUCKET Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5W-2817 [2] FITTING-GREASE  
2. 114-4850 [4] SEAL-LIP TYPE  
3. 120-6358 Y [1] CYLINDER GP-BUCKET  
  Y   SEPARATE ILLUSTRATION
 

#SEBP28510341
 

120-6576: CYLINDER & SEAL GP-STICK

120-6576 CYLINDER & SEAL GP-STICK
S/N 6TL410-UP
PART OF 118-5308 BOOM AR, 153-3596 BOOM AR-OFFSET, 118-5336 BOOM AR-VARIABLE ADJUSTABLE
AN ATTACHMENT
i00474532 SEBP2851
1206576 CYLINDER & SEAL GP-STICK Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5W-2817 [1] FITTING-GREASE  
2. 093-1433 [4] SEAL-LIP TYPE  
3. 118-4978 Y [1] CYLINDER GP-STICK  
  Y   SEPARATE ILLUSTRATION
 

#SEBP28510342
 

8U-4461: CYLINDER GP-AXLE OSC LOCK

8U-4461 CYLINDER GP-AXLE OSC LOCK
S/N 6TL410-UP
PART OF 120-0306 CYLINDER & MTG GP-AXLE LOCK
i00427434 SEBP2851
8U4461 CYLINDER GP-AXLE OSC LOCK Parts scheme
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Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5W-5276 [1] VALVE  
2. 8U-5321 [1] HOUSING-CYLINDER  
3. 8U-1966 [1] HOUSING  
4. 5W-5273 [1] PISTON  
5. 5W-5272 [1] GUIDE-TAPPET  
6. 5W-5271 [1] TAPPET  
7. 5W-5162 [1] SPRING  
8. 5W-5243 [1] PISTON  
9. 8U-5320 J [1] RING-SCRAPER  
10. 5W-4820 J [1] RING-SEAL  
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-9334 [1] PLUG-O-RING  
20. 7M-8485 J [1] SEAL-O-RING  
21. 9S-8002 [1] PLUG (7/16-20-THD)  
22. 3J-7354 [1] SEAL-O-RING  
23. 9S-8005 [1] PLUG (3/4-16-THD)  
24. 3K-0360 [1] SEAL-O-RING  
   
    AVAILABLE REPAIR KIT(S):
  8U-5322 J [1] KIT-SEAL REPAIR (AXLE OSC LOCK CYLINDER)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP28510343
 

142-1625: CYLINDER GP-BLADE

142-1625 CYLINDER GP-BLADE
S/N 6TL410-UP
PART OF 120-0407 BLADE AR
AN ATTACHMENT
i00625232 SEBP2851
1421625 CYLINDER GP-BLADE Parts scheme
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Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 125-6993 [1] CYLINDER  
2. 5W-5259 [1] ROD-CYLINDER  
3. 125-6994 [1] PISTON  
4. 125-6995 [1] COLLAR  
5. 142-1621 [1] PISTON  
6. 125-6996 [1] RETAINER  
7. 118-3117 [1] CONE  
8. 125-6998 [1] PLUG  
9. 118-3119 J [1] SEAL  
10. 118-3120 J [1] RING  
11. 118-3121 J [2] RING  
12. 125-7001 J [1] SEAL-O-RING  
13. 125-7002 J [1] RING-BACKUP  
14. 125-7005 J [1] SEAL-O-RING  
15. 125-7006 J [1] KIT-SEAL  
16. 125-7007 J [1] RING  
17. 118-3128 J [1] SEAL-O-RING  
18. 4J-5351 J [2] SEAL-O-RING  
19. 118-3130 J [2] RING-BACKUP  
20. 118-3131 J [2] SEAL-O-RING  
21. 118-3132 [2] SPRING  
22. 125-7008 [1] NUT  
23. 118-2731 [1] PIN  
24. 125-7009 [2] BEARING  
25. 8T-9599 [4] RING-RETAINING  
26. 118-2732 [2] FITTING-GREASE  
27. 142-2719 [1] RETAINER  
28. 142-1623 [1] PIN  
29. 142-2946 [1] PLUG  
   
    AVAILABLE REPAIR KIT(S):
  125-7010 J [1] KIT-SEAL  
  J   KIT(S) MARKED J INCLUDES PART(S) MARKED J
 

#SEBP28510344
 

118-4979: CYLINDER GP-BOOM

118-4979 CYLINDER GP-BOOM
S/N 6TL410-UP
100MM (3.94 IN) BORE X 994MM (39.13 IN) STROKE
PART OF 120-6575 CYLINDER & SEAL GP-BOOM
AN ATTACHMENT
i00484092 SEBP2851
1184979 CYLINDER GP-BOOM Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 170-9841 J [1] SEAL-BUFFER  
2. 114-0753 [1] BUSHING  
3. 114-9323 [1] HEAD  
4. 165-9283 J [1] SEAL-LIP TYPE  
5. 118-4999 [1] CYLINDER AS  
5A. 143-3835 [1] BUSHING  
6. 124-0695 J [1] RING-BACKUP  
7. 172-1028 [1] ROD & BEARING AS-CYLINDER  
7A. 143-3836 [1] BUSHING  
8. 170-9857 J [1] SEAL-U-CUP  
9. 093-1519 J [1] RING-BACKUP  
10. 119-5456 J [1] RING  
11. 095-9806 M [8] BOLT-SOCKET HEAD (M16X2X80-MM)  
12. 099-5400 [1] RING-RETAINING  
13. 143-8025 J [1] RING  
14. 125-1552 [1] PISTON  
15. 143-8149 M [1] LOCKNUT-SPECIAL  
16. 5I-4199 [1] STOP  
17. 6I-6922 J [1] RING-SEAL  
18. 8U-1958 J [1] SEAL-O-RING  
19. 9X-7298 J [1] SEAL AS  
   
    AVAILABLE REPAIR KIT(S):
  286-0113 J [1] KIT-SEAL (BOOM CYLINDER)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP28510345
 

118-4980: CYLINDER GP-BOOM

118-4980 CYLINDER GP-BOOM
S/N 6TL410-UP
100-MM (3.94-IN) BORE X 994-MM (39.13-IN) STROKE
PART OF 120-6577 CYLINDER & SEAL GP-BOOM
AN ATTACHMENT
i00773283 SEBP2851
1184980 CYLINDER GP-BOOM Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 170-9841 J [1] SEAL-BUFFER  
2. 114-0753 [1] BUSHING  
3. 114-9323 [1] HEAD  
4. 165-9283 J [1] SEAL-LIP TYPE  
5. 118-4999 [1] CYLINDER AS  
5A. 229-1095 [1] BUSHING  
6. 124-0695 J [1] RING-BACKUP  
7. 136-6031 [1] ROD & BEARING AS-CYLINDER  
7A. 143-3836 [1] BUSHING  
8. 170-9857 J [1] SEAL-U-CUP  
9. 093-1519 J [1] RING-BACKUP  
10. 119-5456 J [1] RING  
11. 095-9806 M [8] BOLT-SOCKET HEAD (M16X2X80-MM)  
12. 099-5400 [1] RING-RETAINING  
13. 143-8025 J [1] RING  
14. 125-1552 [1] PISTON  
15. 143-8149 M [1] LOCKNUT-SPECIAL  
16. 5I-4199 [1] STOP  
17. 6I-6922 J [1] RING-SEAL  
18. 8U-1958 J [1] SEAL-O-RING  
19. 9X-7298 J [1] SEAL AS  
   
    AVAILABLE REPAIR KIT(S):
  286-0113 J [1] KIT-SEAL (BOOM CYLINDER)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#SEBP28510346
 

120-6358: CYLINDER GP-BUCKET

120-6358 CYLINDER GP-BUCKET
S/N 6TL410-UP
90-MM (3.5-IN) BORE X 990-MM (39-IN) STROKE
PART OF 120-6579 CYLINDER & SEAL GP-BUCKET
AN ATTACHMENT
i00474422 SEBP2851
1206358 CYLINDER GP-BUCKET Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 165-9282 J [1] SEAL-LIP TYPE  
2. 121-1993 [1] CYLINDER AS  
2A. 117-9436 [1] BUSHING  
3. 121-1994 [1] HEAD  
4. 121-1996 [1] STOP  
5. 124-0695 J [1] RING-BACKUP  
6. 137-5713 [1] ROD & BEARING AS-CYLINDER  
6A. 117-9436 [1] BUSHING  
7. 137-5755 [1] PISTON  
8. 170-9856 J [1] SEAL-U-CUP  
9. 170-9840 J [1] SEAL-BUFFER  
10. 096-1055 J [1] RING  
11. 099-0700 [1] RING-RETAINING  
12. 099-6973 J [1] SEAL AS  
13. 099-6976 J [1] RING  
14. 105-2630 J [1] RING  
15. 3E-6910 M [10] BOLT-SOCKET HEAD (M12X1.75X70-MM)  
16. 114-0754 [1] BUSHING  
17. 121-1997 J [1] RING-SEAL  
18. 143-8149 M [1] LOCKNUT-SPECIAL (M48X2-6H THD)  
19. 8U-1958 J [1] SEAL-O-RING  
   
    AVAILABLE REPAIR KIT(S):
  286-0114 J [1] KIT-SEAL (BUCKET CYLINDER)  
  J   KIT MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
 

#SEBP28510347
 

185-1738: CYLINDER GP-BUCKET

185-1738 CYLINDER GP-BUCKET
S/N 6TL410-UP
80-MM (3.2-IN) BORE X 250-MM (9.9-IN) STROKE
PART OF 122-7007, 128-6184 LINKAGE AR-BUCKET
AN ATTACHMENT
i01256678 SEBP2851
1851738 CYLINDER GP-BUCKET Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 185-1737 [1] CYLINDER AS  
2. 5W-2488 [1] ROD-PISTON  
3. 5W-2489 [1] GUIDE  
4. 8U-4010 J [1] RING-PISTON  
5. 225-8699 J [1] SEAL  
6. 5W-1772 J [1] SEAL-O-RING  
7. 8U-4009 J [1] SEAL  
8. 5W-2812 [2] BEARING  
9. 9X-2858 [4] RING-RETAINING  
   
    AVAILABLE REPAIR KIT(S):
  5W-1823 J [1] KIT-SEAL (BUCKET CYLINDER)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
 

#SEBP28510348
 

120-4708: CYLINDER GP-MASTER

120-4708 CYLINDER GP-MASTER
S/N 6TL410-950
PART OF 111-1901 CONTROL GP-BRAKE
i00473350 SEBP2851
1204708 CYLINDER GP-MASTER Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8U-5764 [1] HOUSING  
2. 8U-5765 [1] PISTON  
3. 120-8127 [1] COLLAR  
4. 8U-5767 [1] GUIDE  
5. 8U-5768 [1] ROD  
6. 8U-5769 [1] SPRING  
7. 5W-7026 [1] NUT  
8. 8U-5770 [1] RING  
9. 8U-5771 J [1] SEAL  
10. 8U-5772 J [1] SEAL  
11. 8U-5773 J [2] BUSHING  
12. 8U-4125 J [1] SEAL-O-RING  
   
    AVAILABLE REPAIR KIT(S):
  120-8128 J [1] KIT-SEAL  
  J   KIT MARKED J INCLUDES PART(S) MARKED J
 

#SEBP28510349
 

144-5970: CYLINDER GP-OFFSET

144-5970 CYLINDER GP-OFFSET -BOOM SWING
S/N 6TL410-UP
110-MM (4.3-IN) BORE X 507-MM (20-IN) STROKE
PART OF 153-3595 BOOM GP-OFFSET
AN ATTACHMENT
i00802992 SEBP2851
1445970 CYLINDER GP-OFFSET Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 155-8418 [1] CYLINDER  
2. 155-8419 [1] ROD  
3. 5W-7608 [1] PISTON  
4. 155-8420 [1] GUIDE  
5. 118-3119 J [1] SEAL  
6. 118-3120 J [1] RING  
7. 118-3121 J [3] RING  
8. 112-6920 J [1] SEAL-O-RING  
9. 125-9695 J [1] RING-BACKUP  
10. 125-9701 J [1] SEAL-O-RING  
11. 5W-6382 J [1] NUT  
12. 118-3128 J [1] SEAL-O-RING  
13. 118-3133 [1] NUT (M45X1.5-THD)  
14. 8G-4189 [2] BEARING-SELF-ALIGNING  
15. 8T-0707 [4] RING-RETAINING (INTERNAL)  
16. 118-2731 [1] PIN  
   
    AVAILABLE REPAIR KIT(S):
  155-8421 [1] KIT-SEAL (OFFSET CYLINDER)  
  J   KIT MARKED J INCLUDES 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}
2013/02/28
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 M312 :

CYLINDER & SEAL GP-BOOM
120-6578 CYLINDER & SEAL GP-BOOM
CYLINDER & SEAL GP-BOOM
120-6577 CYLINDER & SEAL GP-BOOM
CYLINDER & SEAL GP-BOOM
120-6575 CYLINDER & SEAL GP-BOOM
CYLINDER & MTG GP-AXLE LOCK
120-0306 CYLINDER & MTG GP-AXLE LOCK
COVER GP-VALVE
114-0208 COVER GP-VALVE
COUPLING GP-PUMP
123-9735 COUPLING GP-PUMP
133-1587 COUPLING GP-FLEXIBLE
COUPLING GP-FLEXIBLE
133-1581 COUPLING GP-FLEXIBLE
CYLINDER & SEAL GP-STICK
120-6576 CYLINDER & SEAL GP-STICK
CYLINDER GP-AXLE OSC LOCK
8U-4461 CYLINDER GP-AXLE OSC LOCK
CYLINDER GP-BLADE
142-1625 CYLINDER GP-BLADE
CYLINDER GP-BOOM
118-4979 CYLINDER GP-BOOM
CYLINDER GP-BOOM
118-4980 CYLINDER GP-BOOM
CYLINDER GP-BUCKET
120-6358 CYLINDER GP-BUCKET
CYLINDER GP-BUCKET
185-1738 CYLINDER GP-BUCKET
CYLINDER GP-MASTER
120-4708 CYLINDER GP-MASTER

Truck sale:

Caterpillar M312, Construction
24,412 
Caterpillar M312, Construction
- wheel excavator
BERGERAT MONNOYEUR SP. Z O.O.
Poland
 
$24,298 USD 
CATERPILLAR M312 1999
- WHEEL EXCAVATORS
BERGERAT MONNOYEUR POLAND
K. Kolumba 15 - Komorniki -
 
$15,899 USD 
CATERPILLAR M312 2002
- WHEEL EXCAVATORS
BERGERAT MONNOYEUR POLAND
K. Kolumba 15 - Komorniki -
1999 CAT M312
USD $24,599 
1999 CAT M312

Budrolpol
2001 CAT M312
USD $46,900 
2001 CAT M312

MB Tractor & Equipment
Tilton, New Hampshire
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