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

123-9730 MOTOR GP-PISTON S/N 6TL326-326; 6TL331-409 PART OF 123-9729 MOTOR & MTG GP-TRAVEL M312 EXCAVATOR


HYDRAULIC SYSTEM
MOTOR GP
PUMP GP

EXCAVATOR M312 EXCAVATOR 6TL
 M312 Excavator 6TL00001-00409 (MACHINE) POWERED BY 3054 Engine SEBP2433 M312 6TL   (1988)

HYDRAULIC SYSTEM

MOTOR GP
MOTOR & MTG GP-TRAVEL
123-9729 MOTOR & MTG GP-TRAVEL
MOTOR GP-PISTON
123-9730 MOTOR GP-PISTON
MOTOR GP-PISTON
123-9730 MOTOR GP-PISTON
MOTOR GP-SWING
120-4713 MOTOR GP-SWING
MOTOR GP-SWING
120-4713 MOTOR GP-SWING
 

#SEBP24330350
 

123-9730: MOTOR GP-PISTON

123-9730 MOTOR GP-PISTON
S/N 6TL326-326; 6TL331-409
PART OF 123-9729 MOTOR & MTG GP-TRAVEL
i00599308 SEBP2433
1239730 MOTOR GP-PISTON Parts scheme 1239730 MOTOR GP-PISTON Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 095-0940 [1] RING-RETAINING  
2. 115-1542 J [1] SEAL-SHAFT  
3. 149-3841 C [1] HOUSING  
4. 116-3195 [1] PLUG AS  
  8C-3093 [1] SEAL-O-RING  
5. 8U-2566 [1] BEARING  
6. 131-4664 B [1] SHIM (1-MM THK)  
  131-4665 B [1] SHIM (1.05-MM THK)  
  131-4666 B [1] SHIM (1.1-MM THK)  
  131-4667 B [1] SHIM (1.15-MM THK)  
  131-4668 B [1] SHIM (1.2-MM THK)  
  131-4669 B [1] SHIM (1.25-MM THK)  
  131-4670 B [1] SHIM (1.5-MM THK)  
  131-4671 B [1] SHIM (1.75-MM THK)  
7. 131-4662 B [1] SHIM (0.1-MM THK)  
  9T-6072 B [1] SPACER (0.3-MM THK)  
  9T-8112 B [1] SHIM  
8. 132-6769 [1] RING  
9. 8U-5508 [1] BEARING-ROLLER  
10. 131-4645 [1] SHAFT  
11. 8U-9480 [2] PIN  
12. 131-4646 [2] BEARING  
13. 131-4647 [1] CRADLE  
14. 121-9915 [3] SLEEVE  
15. 131-4648 [9] PISTON  
16. 131-4649 [1] WASHER (61X123X5.5-MM THK)  
17. 131-4650 B [1] PLATE (0.05-MM THK)  
  131-4651 B [1] PLATE (0.075-MM THK)  
  131-4652 B [1] PLATE (0.1-MM THK)  
18. 131-4663 [1] SHIM (6.3-MM THK)  
19. 9T-4906 [1] RING-RETAINING  
20. 131-4653 [1] PLATE  
21. 8U-3297 M [4] BOLT (M10X1.5X25-MM)  
22. 131-4654 B [1] PLATE (0.05-MM THK)  
  131-4655 B [1] PLATE (0.075-MM THK)  
  131-4656 B [1] PLATE (0.1-MM THK)  
23. 117-8210 C [2] DOWEL  
24. 131-4672 [1] PLATE  
25. 131-4657 [1] PLATE  
26. 131-4658 [1] HOUSING  
27. 131-4659 [1] WASHER (39.2X55.6X4-MM THK)  
28. 131-4660 [1] SPRING  
29. 131-4661 [1] WASHER (36.5X56.9X4-MM THK)  
30. 149-3842 C [1] HOUSING  
31. 117-2987 M [8] BOLT-SOCKET HEAD (M12X1.75X115-MM)  
32. 121-9948 Y [1] VALVE GP-BRAKE CONTROL  
33. 131-4674 [2] PIPE  
34. 121-9941 J [2] RING  
35. 121-9940 [2] WASHER (4X8X0.5-MM THK)  
36. 131-4675 J [2] RING  
37. 8C-3131 J [2] SEAL-O-RING  
38. 131-4676 [1] PISTON  
39. 131-4677 [1] PISTON  
40. 124-2939 Y [2] VALVE GP-RELIEF  
41. 121-9935 B [2] WASHER (1.5-MM THK)  
  121-9936 B [2] WASHER (1.6-MM THK)  
  121-9937 B [2] WASHER (1.7-MM THK)  
  121-9938 B [2] WASHER (1.8-MM THK)  
  121-9939 B [2] WASHER (1.9-MM THK)  
42. 102-7364 M [2] BOLT-SOCKET HEAD (M6X1X80-MM)  
43. 9T-6322 C [1] PLUG AS  
44. 131-4678 [2] NOZZLE  
45. 8U-5942 J [6] SEAL-O-RING  
46. 151-4764 C [1] REGULATOR GP-HOUSING  
  166-3718 [1] SEAL-O-RING  
  106-9586 [1] SEAL-O-RING  
47. 121-9946 [2] PIN  
48. 9T-4901 M [2] NUT (M12X1-THD)  
49. 095-0674 M [9] BOLT-SOCKET HEAD (M12X1.75X65-MM)  
50. 6V-5192 M [4] BOLT-SOCKET HEAD (M8X1.25X30-MM)  
51. 169-1560 [2] BOLT  
   
    AVAILABLE REPAIR KIT(S):
  131-4682 J [1] KIT-SEAL  
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
  J   KIT(S) MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP24330351
 

120-4713: MOTOR GP-SWING

120-4713 MOTOR GP-SWING
S/N 6TL1-320; 6TL324-331; 6TL333-341; 6TL343-343; 6TL346-346; 6TL351-352; 6TL354-354
PART OF 120-4714 DRIVE GP-SWING
i00473361 SEBP2433
1204713 MOTOR GP-SWING Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 095-0939 [1] RING-RETAINING  
2. 125-3192 [1] COVER  
3. 8U-5448 J [1] SEAL  
4. 125-3193 [1] SEAL-O-RING  
5. 117-8181 [1] PIN  
6. 125-3194 [1] HOUSING  
7. 116-3195 [2] PLUG AS  
8. 125-3195 [1] RING  
9. 125-3196 [1] BEARING  
10. 125-3197 [1] SHAFT  
11. 125-3198 [1] WASHER  
12. 125-3199 [7] PISTON  
13. 125-3200 [1] PLATE  
14. 125-3201 B [1] RING  
15. 125-3202 B [1] RING  
16. 125-3203 B [1] RING  
17. 125-3204 B [1] RING  
18. 125-3205 B [1] RING  
19. 125-3206 [1] HOUSING  
20. 125-3207 [1] WASHER  
21. 125-3208 [1] SPRING  
22. 125-3209 [1] WASHER  
23. 125-3210 B [1] SHIM (0.1-MM THK)  
24. 125-3211 B [1] SHIM (0.27-MM THK)  
25. 125-3212 B [1] SHIM (1-MM THK)  
26. 8C-8840 [1] RING-RETAINING  
27. 125-3214 [1] WASHER  
28. 125-3215 [1] BEARING  
29. 137-8432 B [1] SHIM (1.05MM THK)  
30. 137-8433 B [1] SHIM (1.10MM THK)  
31. 137-8434 B [1] SHIM (1.15MM THK)  
32. 137-8435 B [1] SHIM (1.25MM THK)  
33. 125-3220 B [1] SHIM (1-MM THK)  
34. 125-3221 B [1] SHIM (1.2-MM THK)  
35. 125-3222 [1] PLATE  
36. 117-8210 [2] DOWEL  
37. 5W-1865 J [1] SEAL-O-RING  
38. 125-3223 [1] HOUSING  
39. 095-0655 M [4] BOLT-SOCKET HEAD  
40. 105-6148 [1] VALVE GP-SHUTTLE  
41. 117-8215 [1] VALVE AS  
  5W-7476 [1] BALL  
  5W-7478 [1] WASHER (3X6X0.1-MM THK)  
  5W-7479 [1] WASHER (3X6X0.5-MM THK)  
  117-8216 [1] SEAL-O-RING  
  117-8231 [1] SPRING  
  121-9739 [1] KIT-REPAIR  
42. 137-8436 B [1] SHIM (1.5MM THK)  
43. 137-8437 B [1] SHIM  
   
    AVAILABLE REPAIR KIT(S):
  125-3224 [1] KIT-SEAL  
  B   USE AS REQUIRED
  J   KIT(S) MARKED J INCLUDE PART(S) MARKED J
  M   METRIC PART
 

#SEBP24330352
 

120-4713: MOTOR GP-SWING

120-4713 MOTOR GP-SWING
S/N 6TL321-323; 6TL332-332; 6TL342-342; 6TL344-345; 6TL347-350; 6TL353-353; 6TL355-409
PART OF 120-4714 DRIVE GP-SWING
i00793859 SEBP2433
1204713 MOTOR GP-SWING Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 095-0939 [1] RING-RETAINING  
2. 125-3192 [1] COVER  
3. 8U-5448 J [1] SEAL  
4. 125-3193 [1] SEAL-O-RING  
5. 117-8181 [1] PIN  
6. 158-6360 [1] HOUSING  
7. 116-3195 [2] PLUG AS  
8. 125-3195 [1] RING  
9. 125-3196 [1] BEARING  
10. 125-3197 [1] SHAFT  
11. 158-6361 [1] WASHER  
12. 125-3199 [7] PISTON  
13. 125-3200 [1] PLATE  
14. 125-3201 B [1] RING  
15. 125-3202 B [1] RING  
16. 125-3203 B [1] RING  
17. 125-3204 B [1] RING  
18. 125-3205 B [1] RING  
19. 125-3206 [1] HOUSING  
20. 125-3207 [1] WASHER  
21. 125-3208 [1] SPRING  
22. 125-3209 [1] WASHER  
23. 125-3210 B [1] SHIM (0.1-MM THK)  
24. 125-3211 B [1] SHIM (0.27-MM THK)  
25. 125-3212 B [1] SHIM (1-MM THK)  
26. 8C-8840 [1] RING-RETAINING  
27. 125-3214 [1] WASHER  
28. 125-3215 [1] BEARING  
29. 137-8432 B [1] SHIM (1.05MM THK)  
30. 137-8433 B [1] SHIM (1.10MM THK)  
31. 137-8434 B [1] SHIM (1.15MM THK)  
32. 137-8435 B [1] SHIM (1.25MM THK)  
33. 125-3220 B [1] SHIM (1-MM THK)  
34. 125-3221 B [1] SHIM (1.2-MM THK)  
35. 125-3222 [1] PLATE  
36. 117-8210 [2] DOWEL  
37. 5W-1865 J [1] SEAL-O-RING  
38. 125-3223 [1] HOUSING  
39. 095-0655 M [4] BOLT-SOCKET HEAD  
40. 105-6148 [1] VALVE GP-SHUTTLE  
41. 117-8215 [1] VALVE AS  
  5W-7476 [1] BALL  
  5W-7478 [1] WASHER (3X6X0.1-MM THK)  
  5W-7479 [1] WASHER (3X6X0.5-MM THK)  
  117-8216 [1] SEAL-O-RING  
  117-8231 [1] SPRING  
  121-9739 [1] KIT-REPAIR  
42. 137-8436 B [1] SHIM (1.5MM THK)  
43. 137-8437 B [1] SHIM  
   
    AVAILABLE REPAIR KIT(S):
  125-3224 J [1] KIT-SEAL  
  B   USE AS REQUIRED
  J   KIT(S) MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
 

#SEBP24330353
 

118-9168: PUMP & MOTOR GP-STEERING

118-9168 PUMP & MOTOR GP-STEERING -SECONDARY
S/N 6TL1-409
PART OF 127-1482 STEERING GP-HYDRAULIC
AN ATTACHMENT
i00487998 SEBP2433
1189168 PUMP & MOTOR GP-STEERING Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8U-8062 Y [1] PUMP GP-GEAR  
2. 137-4193 [1] MOTOR AS-ELECTRIC  
3. 137-4194 [1] SEAL  
4. 9X-2158 M [2] BOLT-SOCKET HEAD (M10X1.5X90-MM)  
5. 137-4195 [2] CAP  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP24330354
 

117-8023: PUMP & MTG GP-MAIN HYDRAULIC

117-8023 PUMP & MTG GP-MAIN HYDRAULIC
S/N 6TL1-409
PART OF 123-9733 HYDRAULIC AR-UPPER
i00476463 SEBP2433
1178023 PUMP & MTG GP-MAIN HYDRAULIC Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 117-8025 Y [1] PUMP GP-MAIN & SWING  
2. 6V-1820 M [12] BOLT (M10X1.5X30-MM)  
3. 8T-4121 [12] WASHER-HARD (11X21X2.5-MM THK)  
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP24330355
 

117-8030: PUMP & MTG GP-STEERING & BRAKE

117-8030 PUMP & MTG GP-STEERING & BRAKE
S/N 6TL1-377
PART OF 123-9733 HYDRAULIC AR-UPPER
i00476502 SEBP2433
1178030 PUMP & MTG GP-STEERING & BRAKE Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 117-8031 Y [1] PUMP GP-GEAR  
2. 123-0863 Y [1] DRIVE GP-ACCESSORY  
3. 6V-5196 M [4] BOLT-SOCKET HEAD (M8X1.25X80-MM)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP24330356
 

117-8030: PUMP & MTG GP-STEERING & BRAKE

117-8030 PUMP & MTG GP-STEERING & BRAKE
S/N 6TL378-409
PART OF 123-9733 HYDRAULIC AR-UPPER
i00713822 SEBP2433
1178030 PUMP & MTG GP-STEERING & BRAKE Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
2. 143-4757 Y [1] PUMP GP-GEAR  
3. 148-7147 Y [1] DRIVE GP-ACCESSORY  
4. 150-3538 [1] PLATE AS  
5. 151-8754 M [2] BOLT (M10X1.5X40-MM)  
6. 7I-8935 M [4] BOLT-SOCKET HEAD (M8X1.25X75-MM)  
7. 8T-4133 M [2] NUT (M10X1.5-THD)  
8. 8T-4192 M [2] BOLT (M12X1.75X25-MM)  
9. 8T-4223 [2] WASHER-HARD (13.5X25.5X3-MM THK)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP24330357
 

117-8031: PUMP GP-GEAR

117-8031 PUMP GP-GEAR
S/N 6TL1-377
PART OF 117-8030 PUMP & MTG GP-STEERING & BRAKE
FIELD REPLACEMENT ORDER @@@@@197-1529@@@@@, 1-192-7035 KIT-REPAIR
i00476515 SEBP2433
1178031 PUMP GP-GEAR Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 096-0194 [1] RING-RETAINING  
2. 113-7619 J [1] SEAL-LIP TYPE  
3. 125-6225 [1] FLANGE  
4. 113-7618 J [4] RING-BACKUP  
5. 113-7616 J [4] SEAL-LIP TYPE  
6. 113-1974 [4] BEARING  
7. 113-7820 J [4] SEAL-O-RING  
8. 113-1940 [1] HOUSING-GEAR  
9. 113-7821 [2] DOWEL  
10. 113-7617 [4] DOWEL  
11. 113-1973 [2] SHAFT-GEAR  
12. 113-1943 [1] SHAFT-GEAR  
13. 125-6226 [1] SHAFT  
14. 113-1939 [1] PLATE  
15. 113-1977 [1] COVER-GEAR PUMP  
16. 113-1942 [1] COUPLING  
17. 8T-7950 M [4] BOLT (M10X1.5X180-MM)  
18. 113-1941 [1] HOUSING-GEAR  
19. 125-6227 [1] BEARING  
20. 7J-9933 [1] SEAL-O-RING  
21. 120-6001 Y [1] VALVE GP-RELIEF  
22. 6V-8653 M [4] BOLT-SOCKET HEAD (M6X1X40-MM)  
23. 5W-5351 [1] NUT  
24. 3E-4988 [1] LOCKWASHER  
25. 144-6248 [1] SLEEVE-CONNECTOR  
26. 9S-8005 [1] PLUG (3/4-16-THD)  
27. 3K-0360 [1] SEAL-O-RING  
   
    AVAILABLE REPAIR KIT(S):
  114-2175 J [1] KIT-SEAL  
  J   KIT MARKED J INCLUDES PART(S) MARKED J
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP24330358
 

126-5321: PUMP GP-GEAR

126-5321 PUMP GP-GEAR -CHARGE
S/N 6TL1-409
PART OF 133-5494, 139-9532 PUMP GP-SWING
i00514739 SEBP2433
1265321 PUMP GP-GEAR Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 126-5682 Y [1] PUMP GP-GEAR (CHARGE)  
2. 126-5683 [1] PLATE AS  
3. 117-7322 [1] SEAL-RING  
  Y   SEPARATE ILLUSTRATION
 

#SEBP24330359
 

126-5682: PUMP GP-GEAR

126-5682 PUMP GP-GEAR -CHARGE
S/N 6TL1-409
PART OF 126-5321 PUMP GP-GEAR
i00514778 SEBP2433
1265682 PUMP GP-GEAR Parts scheme
  For full view, you need register

Parts for your M312 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 126-5676 [1] BUSHING  
2. 126-5702 [1] SHAFT-DRIVE  
3. 126-5703 [1] SPRING  
4. 126-5705 [1] RING-RETAINING  
5. 6V-5192 M [4] BOLT-SOCKET HEAD (M8X1.25X30-MM)  
6. 5W-1437 [4] LOCKWASHER  
7. 117-7322 [1] SEAL-RING  
8. 199-3672 [1] RING-RETAINING  
  M   METRIC PART
 

Information:

Tool Operating Manual
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}
Replacing Sleeve Bearings in Tyrone Gear Pumps and Motors (Used on Series 7 and 8, Iron and Aluminum Housings){0738, 5061, 5073, 7551}

Caterpillar Parts SIS Catalog M312 :

MOTOR GP-PISTON
123-9730 MOTOR GP-PISTON
MOTOR & MTG GP-TRAVEL
123-9729 MOTOR & MTG GP-TRAVEL
LINES GP-SWING DRIVE
132-4275 LINES GP-SWING DRIVE
LINES GP-STICK
123-9467 LINES GP-STICK
LINES GP-STICK
123-9466 LINES GP-STICK
LINES GP-STICK
123-9465 LINES GP-STICK
LINES GP-STICK
123-9464 LINES GP-STICK
LINES GP-STICK
123-9464 LINES GP-STICK
MOTOR GP-SWING
120-4713 MOTOR GP-SWING
MOTOR GP-SWING
120-4713 MOTOR GP-SWING
PUMP & MOTOR GP-STEERING
118-9168 PUMP & MOTOR GP-STEERING
PUMP & MTG GP-MAIN HYDRAULIC
117-8023 PUMP & MTG GP-MAIN HYDRAULIC
PUMP & MTG GP-STEERING & BRAKE
117-8030 PUMP & MTG GP-STEERING & BRAKE
PUMP & MTG GP-STEERING & BRAKE
117-8030 PUMP & MTG GP-STEERING & BRAKE
PUMP GP-GEAR
117-8031 PUMP GP-GEAR
PUMP GP-GEAR
126-5321 PUMP GP-GEAR

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
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.