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3T-9925 BYPASS GP-FILTER -WINCH S/N 9EB1-UP; 1MK1-UP PART OF 3T-9923 CONTROL GP-WINCH AN ATTACHMENT 578


HYDRAULIC SYSTEM
FILTER GP
CONTROL GP-COUNTERWEIGHT
CYLINDER GP
HYDRAULIC GP
MANIFOLD GP
PUMP GP
TANK GP

PIPELAYER 578 PIPELAYER 8HB
 578 Pipelayer 8HB00001-UP (MACHINE) POWERED BY 3406 Engine SEBP1887 578 8HB   (1989)

HYDRAULIC SYSTEM

FILTER GP
BYPASS GP-FILTER
3T-9925 BYPASS GP-FILTER
 

#SEBP18870320
 

3T-9925: BYPASS GP-FILTER

3T-9925 BYPASS GP-FILTER -WINCH
S/N 9EB1-UP; 1MK1-UP
PART OF 3T-9923 CONTROL GP-WINCH
AN ATTACHMENT
i00370213 SEBP1887
3T9925 BYPASS GP-FILTER Parts scheme
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Parts for your 578 PIPELAYER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7T-6635 [1] PIN-STOP  
2. 7T-6636 [1] PLUG  
  3K-0360 [1] SEAL-O-RING  
3. 6P-9783 [1] SPRING  
4. 3T-9929 [1] MANIFOLD  
5. 7T-3972 [1] SPOOL  
6. 9S-8004 [1] PLUG (9/16-18-THD)  
  3J-1907 [1] SEAL-O-RING  
7. 7G-2967 [1] PLATE  
8. 0S-1617 [4] BOLT (5/16-18X0.75-IN)  
9. 2M-7041 [1] SLUG  
10. 8P-1556 [1] SPRING  
11. 9S-8006 [1] PLUG (7/8-14-THD)  
  2M-9780 [1] SEAL-O-RING  
12. 1H-1200 [1] PIN-SPRING  
13. 9M-1986 [1] SPRING  
14. 9P-1508 [1] SPOOL  
15. 9S-8008 [1] PLUG (1-1/16-12-THD)  
  3D-2824 [1] SEAL-O-RING  
16. 9P-9282 [1] PLUNGER  
17. 7T-6637 [1] COVER  
  3S-9233 [1] SEAL-O-RING  
18. 7T-6638 [1] SPRING  
19. 3P-4660 [1] SPOOL-VALVE  
 

#SEBP18870321
 

6T-9922: CONTROL GP-COUNTERWEIGHT

6T-9922 CONTROL GP-COUNTERWEIGHT
S/N 8HB1-UP
PART OF 9P-7402 HYDRAULIC AR
i00406954 SEBP1887
6T9922 CONTROL GP-COUNTERWEIGHT Parts scheme
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Parts for your 578 PIPELAYER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2A-1736 [1] HANDLE  
2. 9G-8441 [1] LEVER AS  
3. 9G-8444 [1] BRACKET  
4. 6V-8183 [5] NUT-FULL (3/8-24-THD)  
5. 8D-8069 [1] ROD  
6. 5J-5315 [2] ROD END  
7. 9G-8447 [1] BELLCRANK  
8. 5P-5379 [1] ROD END  
9. 7X-3376 [2] NUT-FULL (5/16-24-THD)  
10. 5M-5479 [1] ROD  
11. 4F-1001 [1] END-YOKE  
12. 4B-3057 [1] PIN-CLEVIS  
  3B-4607 [1] PIN-COTTER  
13. 7T-1493 [1] PLATE AS  
14. 5S-7379 [2] BOLT (3/8-16X0.875-IN)  
15. 8T-4896 [4] WASHER-HARD (10.2X18.5X2.5-MM THK)  
16. 7X-0503 [2] WASHER-HARD (10.2X28.5X5-MM THK)  
17. 5S-7383 [2] BOLT (3/8-16X1.75-IN)  
18. 2K-4973 [1] LOCKNUT (3/8-16-THD)  
19. 7P-4190 [2] BEARING-ROLLER  
20. 6P-3343 [2] SLEEVE  
21. 4L-6454 [2] BOLT (3/8-16X1-IN)  
 

#SEBP18870322
 

3G-5712: CYLINDER GP-BOOM

3G-5712 CYLINDER GP-BOOM
S/N 8HB1-UP
PART OF 9P-7402 HYDRAULIC AR
i00364826 SEBP1887
3G5712 CYLINDER GP-BOOM Parts scheme
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Parts for your 578 PIPELAYER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8T-1794 [2] SEAL AS  
2. 9J-3369 [1] RING-WEAR  
3. 3G-5709 [1] PISTON  
4. 5P-2235 [1] SEAL-O-RING  
5. 1U-3307 [1] RING-BACKUP  
6. 1B-2721 [2] BOLT (1-1/4-7X5.5-IN)  
7. 4K-0684 [8] WASHER-HARD (34X55X6-MM THK)  
8. 8C-5220 [1] SEAL-LIP TYPE  
9. 3G-5708 [1] ROD AS  
10. 5J-8400 [1] SEAL-CUP  
11. 3R-2300 [6] BOLT (1-1/4-7X4.5-IN)  
12. 8C-9129 [1] SEAL AS  
13. 9T-3509 [1] HEAD  
14. 3G-5711 [1] CYLINDER AS  
15. 7J-9250 [1] LOCKNUT (3-1/4X12-THD)  
16. 8J-5962 [4] SEAL AS  
17. 4T-1684 [2] BEARING  
18. 3B-8489 [2] FITTING-GREASE (1/8-27 PTF)  
19. 8T-6747 [1] RING-WEAR  
20. 2H-3755 [4] BOLT (5/16-18X0.43-IN)  
  7S-6369 [4] WASHER (0.344X0.75X0.188-IN THK)  
 

#SEBP18870323
 

9T-0489: CYLINDER GP-COUNTERWEIGHT

9T-0489 CYLINDER GP-COUNTERWEIGHT
S/N 8HB1-UP
152.4 MM BORE X 567 MM STROKE
PART OF 9P-7402 HYDRAULIC AR
i00453810 SEBP1887
9T0489 CYLINDER GP-COUNTERWEIGHT Parts scheme
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Parts for your 578 PIPELAYER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9T-0488 [1] CYLINDER AS  
2. 3B-8489 [2] FITTING-GREASE (1/8-27 PTF)  
3. 8C-9126 [1] SEAL AS  
4. 3G-2923 [1] PISTON  
5. 3J-6899 [1] LOCKNUT (2-1/4-12-THD)  
6. 7J-5326 [1] RING-WEAR  
7. 4T-4144 [1] SEAL AS  
8. 5H-3252 [1] SEAL-O-RING  
9. 2K-3258 [1] RING-BACKUP  
10. 9T-0485 [1] ROD  
11. 5J-8300 [1] SEAL-U-CUP  
12. 1D-4609 [6] BOLT (3/4-10X3-IN)  
  7F-5227 [2] BOLT (3/4-10X3.75-IN)  
  5P-8248 [8] WASHER-HARD (20X36.5X3.5-MM THK)  
13. 9T-8227 [1] HEAD  
14. 5P-7802 [2] BEARING  
15. 4J-4968 [4] RING-LOCK  
16. 8C-5218 [1] SEAL-LIP TYPE  
17. 9T-0094 [1] RING-WEAR  
 

#SEBP18870324
 

9P-7402: HYDRAULIC AR

9P-7402 HYDRAULIC AR
S/N 8HB1-UP
PART OF 9P-7403 PIPELAYER AR
i00441224 SEBP1887
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Parts for your 578 PIPELAYER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  6T-9922 YI [1] CONTROL GP-COUNTERWEIGHT  
  6T-9924 Y [1] CONTROL GP-HYDRAULIC  
  6T-9925 Y [1] CONTROL GP-HYDRAULIC  
  6T-9923 Y [1] CONTROL GP-HYDRAULIC LOCKOUT  
  3G-5712 Y [1] CYLINDER GP-BOOM  
  9T-0489 Y [1] CYLINDER GP-COUNTERWEIGHT  
  6T-9949 Y [1] PUMP & MTG GP-IMPLEMENT  
  9T-7574 Y [1] TANK & FILTER GP-HYDRAULIC  
  7G-0132 Y [1] VALVE & LINES GP  
  7G-0133 Y [1] VALVE & LINES GP  
  I   REFER TO HYDRAULIC INFORMATION SYSTEM
  Y   SEPARATE ILLUSTRATION
 

#SEBP18870325
 

9T-2101: MANIFOLD GP-HYDRAULIC

9T-2101 MANIFOLD GP-HYDRAULIC
S/N 8HB1-UP
COUNTERWEIGHT
PART OF 9T-1900 VALVE GP-CONTROL
i00432523 SEBP1887
9T2101 MANIFOLD GP-HYDRAULIC Parts scheme
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Parts for your 578 PIPELAYER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4J-0527 [1] SEAL-O-RING  
 

#SEBP18870326
 

6T-9949: PUMP & MTG GP-IMPLEMENT

6T-9949 PUMP & MTG GP-IMPLEMENT
S/N 8HB1-UP
PART OF 9P-7402 HYDRAULIC AR
i00407026 SEBP1887
6T9949 PUMP & MTG GP-IMPLEMENT Parts scheme
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Parts for your 578 PIPELAYER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4T-4188 Y [1] PUMP GP-GEAR  
2. 5P-8247 [2] WASHER-HARD (17X32X3.5-MM THK)  
3. 6V-8188 [4] NUT (1/2-13-THD)  
4. 2S-4434 [4] SPACER (0.1-IN THK)  
5. 5F-3106 [2] SEAL-O-RING  
6. 1A-1135 [2] BOLT (5/8-11X2-IN)  
7. 7T-7015 [1] ADAPTER AS-PUMP  
8. 2D-8154 [4] STUD-TAPERLOCK (1/2-13X2.36-IN)  
  Y   SEPARATE ILLUSTRATION
 

#SEBP18870327
 

4T-4188: PUMP GP-GEAR

4T-4188 PUMP GP-GEAR
S/N 8HB1-UP
PART OF 6T-9949 PUMP & MTG GP-IMPLEMENT
i00376573 SEBP1887
4T4188 PUMP GP-GEAR Parts scheme
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Parts for your 578 PIPELAYER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3G-7242 [1] PLUG  
2. 1U-0540 [1] COUPLING-SPLINE  
3. 8N-7294 [1] RETAINER-PIN  
4. 5S-1522 [1] RING-SNAP  
5. 7J-4772 [1] COUPLING-SPLINE  
6. 5P-7213 [12] WASHER-HARD (13.5X20.5X2-MM THK)  
7. 8H-5724 [8] NUT (1/2-20-THD)  
8. 4D-1736 [1] RING-RETAINING  
9. 0V-0375 [4] BOLT (1/2-13X3.25-IN)  
10. 5H-1504 [8] WASHER-HARD (20X33.5X5-MM THK)  
11. 6B-6682 [8] NUT-FULL (3/4-16-THD)  
12. 3G-1797 [2] SEAL-LIP TYPE  
   
    AVAILABLE REPAIR KIT(S):
  6E-2689 [1] KIT-FRONT SECTION  
  6E-2690 [1] KIT-CENTER SECTION  
  1U-0544 [1] KIT-REAR SECTION  
  1U-0545 [1] KIT-SEAL  
 

#SEBP18870328
 

9T-7574: TANK & FILTER GP-HYDRAULIC

9T-7574 TANK & FILTER GP-HYDRAULIC
S/N 8HB1-UP
PART OF 9P-7402 HYDRAULIC AR
Type 1
i00436011 SEBP1887
9T7574 TANK & FILTER GP-HYDRAULIC Parts scheme
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Parts for your 578 PIPELAYER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-3047 [1] STRAINER  
2. 3D-2898 [1] SEAL-O-RING  
3. 9H-6454 [1] GASKET  
4. 2D-4202 [1] PLATE  
5. 7H-1447 [1] CAP-FILLER  
6. 8T-2275 [1] BALL  
7. 9T-7490 [1] TANK AS  
8. 2H-6124 [1] SEAL-O-RING  
9. 5H-6733 [1] SEAL-O-RING  
10. 2K-4973 [73] LOCKNUT (3/8-16-THD)  
11. 5M-2894 [14] WASHER-HARD (10.2X18.5X2.5-MM THK)  
12. 9T-7578 [1] COVER AS  
13. 9S-4182 [1] PLUG (7/16-20-THD)  
14. 3J-7354 [1] SEAL-O-RING  
15. 9T-7567 [1] STUD-TAPERLOCK  
16. 6E-3332 [1] TUBE AS  
17. 4T-0522 [2] FILTER ELEMENT-OIL (DISPOSABLE)  
    -OR-
  104-6931 A [2] FILTER ELEMENT AS-OIL (FIRE RESISTANT FLUID)(FIRE RESISTANT FLUID)  
18. 5P-1075 [2] WASHER-HARD (10.2X22.5X3-MM THK)  
19. 8C-5230 [1] SEAL-O-RING  
20. 7D-1195 [1] SEAL-O-RING  
21. 9T-7568 [1] BASE-FILTER  
22. 4M-6921 [1] WASHER-SPRING  
23. 9T-7569 [2] SPACER (10.5X40X64-MM THK)  
24. 5F-7054 [4] SEAL-O-RING  
25. 9J-1979 [1] RETAINER AS  
26. 0T-0065 [2] BOLT (3/8-16X3.5-IN)  
27. 9T-7570 [1] VALVE-BYPASS  
28. 0L-0646 [1] SPRING-VALVE  
29. 9T-7572 [1] FLANGE  
30. 5K-9107 [2] BOLT-LOCKING (3/8-16X0.75-IN)  
31. 9T-7571 [1] SCREEN AS  
32. 9T-7486 [1] TANK AS  
33. 9S-4191 [1] PLUG (9/16-18-THD)  
34. 3J-1907 [1] SEAL-O-RING  
35. 5P-9119 BD GASKET-TAPE (ADHESIVE BACKED)  
36. 0S-1594 [62] BOLT (3/8-16X1-IN)  
37. 9B-7237 [4] BOLT (3/8-16X1.25-IN)  
38. 4J-8252 [1] GAUGE-SIGHT  
39. 4J-8251 [1] GROMMET  
40. 9T-0714 [1] PLATE  
41. 8J-6913 [1] RETAINER  
42. 9J-7031 [1] PLUG-DRAIN  
43. 5M-2057 [1] SEAL-O-RING  
44. 8J-8782 [1] BODY-DRAIN VALVE  
45. 5F-8000 [1] SEAL-O-RING  
46. 1U-2827 [1] GUIDE-VALVE  
47. 7B-3039 [1] SPRING  
48. 8J-8783 [1] VALVE-DRAIN  
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  D   ORDER BY THE METER
 

#SEBP18870329
 

9T-7574: TANK & FILTER GP-HYDRAULIC

9T-7574 TANK & FILTER GP-HYDRAULIC
S/N 8HB1-UP
PART OF 9P-7402 HYDRAULIC AR
Type 2
i00540442 SEBP1887
9T7574 TANK & FILTER GP-HYDRAULIC Parts scheme
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Parts for your 578 PIPELAYER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5D-7927 C [1] STRAINER AS-OIL  
  5F-3488 C [1] END-STRAINER  
2. 6H-9361 C [1] RING-RETAINING  
3. 9H-6454 [1] GASKET  
4. 2D-4202 [1] PLATE  
5. 7H-1447 [1] CAP-FILLER  
6. 8T-2275 [1] BALL  
7. 9T-7490 [1] TANK AS  
8. 2H-6124 [1] SEAL-O-RING  
9. 5H-6733 [1] SEAL-O-RING  
10. 2K-4973 [73] LOCKNUT (3/8-16-THD)  
11. 5M-2894 [14] WASHER-HARD (10.2X18.5X2.5-MM THK)  
12. 9T-7578 [1] COVER AS  
13. 9S-4182 [1] PLUG (7/16-20-THD)  
14. 3J-7354 [1] SEAL-O-RING  
15. 9T-7567 [1] STUD-TAPERLOCK  
16. 6E-3332 [1] TUBE AS  
17. 1R-0735 A [2] FILTER ELEMENT AS-OIL (STANDARD EFFICIENCY)(DISPOSABLE)  
    -OR-
  104-6931 A [2] FILTER ELEMENT AS-OIL (FIRE RESISTANT FLUID)(FIRE RESISTANT FLUID)  
    -OR-
  139-1537 A [2] FILTER ELEMENT AS-OIL (ULTRA HIGH EFFICIENCY)(HIGHER PERFORMANCE)  
18. 5P-1075 [2] WASHER-HARD (10.2X22.5X3-MM THK)  
19. 8C-5230 [1] SEAL-O-RING  
20. 7D-1195 [1] SEAL-O-RING  
21. 9T-7568 [1] BASE-FILTER  
22. 4M-6921 [1] WASHER-SPRING  
23. 9T-7569 [2] SPACER (10.5X40X64-MM THK)  
24. 5F-7054 [4] SEAL-O-RING  
25. 9J-1979 [1] RETAINER AS  
26. 0T-0065 [2] BOLT (3/8-16X3.5-IN)  
27. 9T-7570 [1] VALVE-BYPASS  
28. 0L-0646 [1] SPRING-VALVE  
29. 9T-7572 [1] FLANGE  
30. 5K-9107 [2] BOLT-LOCKING (3/8-16X0.75-IN)  
31. 9T-7571 [1] SCREEN AS  
32. 9T-7486 [1] TANK AS  
33. 9S-4191 [1] PLUG (9/16-18-THD)  
34. 3J-1907 [1] SEAL-O-RING  
35. 5P-9119 BD GASKET-TAPE (ADHESIVE BACKED)  
36. 0S-1594 [62] BOLT (3/8-16X1-IN)  
37. 6V-7744 M [4] LOCKNUT (M10X1.5-THD)  
38. 4J-8252 [1] GAUGE-SIGHT  
39. 4J-8251 [1] GROMMET  
40. 9T-0714 [1] PLATE  
41. 8J-6913 [1] RETAINER  
42. 9J-7031 [1] PLUG-DRAIN  
43. 5M-2057 [1] SEAL-O-RING  
44. 8J-8782 [1] BODY-DRAIN VALVE  
45. 8T-3298 C [1] SEAL-RECTANGULAR  
46. 1U-2827 [1] GUIDE-VALVE  
47. 7B-3039 [1] SPRING  
48. 8J-8783 [1] VALVE-DRAIN  
49. 6J-0369 [1] VALVE AS (AIR VENT)  
  175-3185 [1] CORE-VALVE  
  5L-4758 [1] SEAL-O-RING  
  6J-0368 [1] CAP  
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
  D   ORDER BY THE METER
  M   METRIC PART
 

Information:

Tool Operating Manual
Procedures for Using 9U-5971 and 173-9842 Filter Cart Group {0599, 0738, 5050, 5056, 5057, 5068, 5095, 7579}
Procedures for Using 9U-5971 and 173-9842 Filter Cart Group {0599, 0738, 5050, 5056, 5057, 5068, 5095, 7579}
188-3242 Filter Cart Group and 227-2479 Filter Cart Group{0374, 0599, 0680, 0738, 0768, 5050, 5056, 5095}
188-3242 Filter Cart Group and 227-2479 Filter Cart Group{0374, 0599, 0680, 0738, 0768, 5050, 5056, 5095}
Service Magazine
Color Coded Dust Caps for S·O·S Ports Will Be Available {7770}
2003/12/01
A Replacement Filter Is Incorrectly Identified {5050, 5068}
2002/12/23
Optional High Efficiency Filters Are Now Available {3004, 5068}
2003/07/07

Caterpillar Parts SIS Catalog 578 :

ACCUMULATOR GP
9T-1404 ACCUMULATOR GP
ACCUMULATOR GP
6T-1840 ACCUMULATOR GP
VALVE GP-STEERING & BRAKE CONT
6T-1170 VALVE GP-STEERING & BRAKE CONT
VALVE GP-STEERING & BRAKE CONT
6T-1170 VALVE GP-STEERING & BRAKE CONT
CLUTCH & BRAKE GP-STEERING
6T-1862 CLUTCH & BRAKE GP-STEERING
CLUTCH & BRAKE GP-STEERING
6T-1862 CLUTCH & BRAKE GP-STEERING
9P-7401 UNDERCARRIAGE AR
8E-9398 TRACK GP
CONTROL GP-COUNTERWEIGHT
6T-9922 CONTROL GP-COUNTERWEIGHT
CYLINDER GP-BOOM
3G-5712 CYLINDER GP-BOOM
CYLINDER GP-COUNTERWEIGHT
9T-0489 CYLINDER GP-COUNTERWEIGHT
9P-7402 HYDRAULIC AR
MANIFOLD GP-HYDRAULIC
9T-2101 MANIFOLD GP-HYDRAULIC
PUMP & MTG GP-IMPLEMENT
6T-9949 PUMP & MTG GP-IMPLEMENT
PUMP GP-GEAR
4T-4188 PUMP GP-GEAR
TANK & FILTER GP-HYDRAULIC
9T-7574 TANK & FILTER GP-HYDRAULIC

Truck sale:

1994 CAT 578
USD $150,000 
1994 CAT 578

Whelen Heavy Equipment Ltd.
Hefei, ANHUI, China
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