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3G3942 PILOT OPERATED RELIEF VALVE GROUP Serial No. 51U2728 and 51U2734 only Part of 3G3943 Combination Valve Groups shown on Page 133F 225


HYDRAULIC SYSTEM
VALVE GP-RELIEF
VALVE GP-PRESSURE REDUCING
VALVE GP-COMBINATION
VALVE GP
VALVE GP-RELIEF
VALVE GP
TANK GP
LINES GP-RETURN

EXCAVATOR 225 EXCAVATOR 51U
 225 EXCAVATOR 51U02034-02831 (MACHINE) POWERED BY 3208 ENGINE SEBP1159 225 51U   (1972)

HYDRAULIC SYSTEM

VALVE GP-RELIEF
VALVE GP-PITCH RELIEF
3G-3451 VALVE GP-PITCH RELIEF
VALVE GP-PITCH RELIEF
3G-3452 VALVE GP-PITCH RELIEF
VALVE GP-RELIEF
8J-6798 VALVE GP-RELIEF
VALVE GP-RELIEF
8J-0328 VALVE GP-RELIEF
VALVE GP-PITCH RELIEF
8J-2057 VALVE GP-PITCH RELIEF
VALVE GP-RELIEF
3G-3942 VALVE GP-RELIEF
COMBINATION AND RELIEF VALVE GROUP
9J-0773 COMBINATION AND RELIEF VALVE GROUP
VALVE GP-RELIEF
8J-2460 VALVE GP-RELIEF
VALVE GP-RELIEF
9J-2041 VALVE GP-RELIEF
VALVE GP-RELIEF
9J-8730 VALVE GP-RELIEF
 

#SEBP11590280
 

3G-3942: VALVE GP-RELIEF

3G3942 PILOT OPERATED RELIEF VALVE GROUP
Serial No. 51U2728 and 51U2734 only
Part of 3G3943 Combination Valve Groups shown on Page 133F
c171861 SEBP1159
3G3942 VALVE GP-RELIEF Parts scheme
  For full view, you need register

Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-8001 [1] PLUG  
  4J-7533 [1] SEAL  
2. 9S-8002 [5] PLUG  
  3J-7354 [5] SEAL  
3. 8J-6152 [2] STOP  
4. 5J-2722 [2] SHIM 1.22 mm(.048 in.) thick  
  5J-2721 [19] SHIM .127 mm(.005 in.) thick  
5. 8J-2304 [1] VALVE GROUP  
6. 0S-1619 C [4] BOLT  
7. 9S-8005 [2] PLUG  
8. 3K-0360 [3] SEAL  
9. 2B-2006 C [2] BOLT  
10. 8J-2300 [1] VALVE GROUP  
11. 3H-7675 [1] SPRING  
12. 9S-8004 [1] PLUG  
  3J-1907 [1] SEAL  
13. 5J-4571 [2] SPRING  
14. 4J-0519 [2] SEAL  
15. 5J-0901 [2] VALVE  
16. 4J-5309 [1] SEAL  
17. 9S-4187 [1] PLUG  
18. 8J-2307 [1] VALVE  
19. 4J-0523 [1] SEAL  
20. 2J-0075 [1] SPRING  
21. 4J-5573 [1] SEAL  
22. 4J-0522 [1] SEAL  
23. 3J-3435 [1] BODY GROUP  
24. 8F-9206 [1] SEAL  
  C   INDICATES CHANGE
 

#SEBP11590281
 

9J-4031: VALVE GP-REDUCING

9J4031 REDUCING VALVE GROUP
Serial No. 51U2728 and 51U2734 only
Part of 3G3943 Combination Valve Group shown on Page 133F
c219927 SEBP1159
9J4031 VALVE GP-REDUCING Parts scheme
  For full view, you need register

Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-4808 [1] COVER  
2. 3G-0613 [1] VALVE GROUP  
3. 9J-4811 [1] SPRING  
4. 1F-9412 [3] SHIM  
5. 3G-0614 [1] SPRING  
6. 9J-0789 [4] PISTON  
7. 4J-5309 [6] SEAL  
8. 8F-6711 [2] SEAL  
9. 9S-4191 [1] PLUG  
  3J-1907 [1] SEAL  
10. 9J-4809 [1] RETAINER  
11. 9J-4807 [1] PLUG  
12. 2M-9780 [1] SEAL  
13. 9J-4812 [1] CAP  
14. 9J-4810 [1] PLUNGER  
15. 4J-5351 [1] SEAL  
16. 8F-6419 [4] BOLT  
  3B-4507 [4] LOCKWASHER  
 

#SEBP11590282
 

9J-0773: COMBINATION AND RELIEF VALVE GROUP

9J773 COMBINATION AND RELIEF VALVE GROUP
Part of 3V9412 & 8K182 Pump Lines Groups shown on Pages 127E, 128 and 131
9J75, 8J2460 and 9J776 Valve parts are shown on Pages 138 and 139
c201051 SEBP1159
9J0773 COMBINATION AND RELIEF VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-0776 Y [1] VALVE GROUP  
    (Separate Illustration)
2. 9J-0775 Y [1] VALVE GROUP  
    (Separate Illustration)
3. 1J-8960 [2] SPRING  
4. 2S-4078 [2] SEAL  
5. 9S-8010 [2] PLUG  
6. 8J-2460 Y [1] VALVE GROUP  
    (Separate Illustration)
7. 9S-8005 [1] PLUG  
  3K-0360 [1] SEAL  
8. 9S-8001 [1] PLUG  
  4J-7533 [1] SEAL  
  Y   SEPARATE ILLUSTRATION
 

#SEBP11590283
 

9J-0775: VALVE GP

9J775 COMBINER VALVE GROUP
Part of 9J773 and 3G3943 Valve Groups shown on Pages 127E and 133F
c201168 SEBP1159
9J0775 VALVE GP Parts scheme
  For full view, you need register

Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2J-5436 [2] VALVE  
2. Z [1] BODY  
  Z   NOT SERVICED SEPARATELY
 

#SEBP11590284
 

8J-2460: VALVE GP-RELIEF

8J2460 MAIN RELIEF VALVE GROUP
Part of 9J773 Combination Valve Group shown on Page 137
c116799 SEBP1159
8J2460 VALVE GP-RELIEF Parts scheme
  For full view, you need register

Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-8001 [1] PLUG  
  4J-7533 [1] SEAL  
2. 9S-8002 [5] PLUG  
  3J-7354 [5] SEAL  
3. 8J-6152 [2] STOP  
4. 5J-2722 [2] SHIM (.048" Thick)  
  5J-2721 [19] SHIM (.005" Thick)  
5. 8J-2304 [1] VALVE GROUP  
6. 0L-1352 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
7. 9S-8005 [2] PLUG  
8. 3K-0360 [3] SEAL  
9. 2H-6488 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
10. 8J-2300 [1] VALVE GROUP  
11. 3H-7675 [1] SPRING  
12. 9S-8004 [1] PLUG  
  3J-1907 [1] SEAL  
13. 5J-4571 [2] SPRING  
14. 4J-0519 [2] SEAL  
15. 5J-0901 [2] VALVE  
16. 4J-5309 [1] SEAL  
17. 9S-4187 [1] PLUG  
18. 8J-2307 [1] VALVE  
19. 4J-0523 [1] SEAL  
20. 2J-0075 [1] SPRING  
21. 4J-5573 [1] SEAL  
22. 4J-0522 [1] SEAL  
23. 3J-3435 [1] BODY GROUP  
24. 8F-9206 [1] SEAL  
 

#SEBP11590285
 

9J-0776: SUMMING VALVE GROUP

9J776 SUMMING VALVE GROUP
Part of 9J773 Combination Valve Group shown on Page 137
c147879 SEBP1159
9J0776 SUMMING VALVE GROUP Parts scheme
  For full view, you need register

Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-0777 [1] VALVE GROUP  
2. 9J-0779 [1] SLUG  
3. 9J-0780 [4] PISTON  
4. 4J-5309 [6] SEAL  
5. 8J-9371 [1] BODY  
6. 9S-4191 [1] PLUG  
  3J-1907 [1] SEAL  
7. 8F-6419 [4] BOLT  
  3B-4507 [4] LOCKWASHER  
8. 8F-6711 [2] SEAL  
9. 9J-0781 [1] COVER  
 

#SEBP11590286
 

9J-2084: VALVE GP-DRAIN

9J2084 DRAIN VALVE GROUP
Part of 3V1912 Return and Filter Lines shown on Page 141
c151113 SEBP1159
9J2084 VALVE GP-DRAIN Parts scheme
  For full view, you need register

Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-8896 [1] CAP  
2. 8F-0212 [1] SEAL-O-RING  
3. 2S-4078 [1] SEAL-O-RING  
 

#SEBP11590287
 

3V-1912: RETURN AND FILTER LINES GROUP

3V1912 RETURN AND FILTER LINES GROUP--Part 1 of 2
Serial No. 51U2034 to 51U2232 inclusive
c214360 SEBP1159
3V1912 RETURN AND FILTER LINES GROUP Parts scheme
  For full view, you need register

Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1P-5767 [4] FLANGE  
2. 1P-3704 [2] SEAL  
3. 1A-1460 [8] BOLT  
4. 4B-4280 [16] WASHER  
5. 0V-0375 [4] BOLT  
6. 7M-8485 [2] SEAL  
7. 8K-0775 [1] TUBE ASSEM.  
    (Includes)
8. 1N-5998 [1] PLUG  
  6K-6307 [1] SEAL  
9. 1P-3707 [1] SEAL  
10. 1D-4566 [4] BOLT  
11. 3B-4508 [12] LOCKWASHER  
12. 1P-4579 [2] FLANGE  
13. 0S-1585 [8] BOLT  
14. 8K-0767 [1] HOSE ASSEM. 53.04 cm(20.88 in.)  
15. 7F-8267 [1] SEAL  
16. 3D-2824 [2] SEAL  
17. 2R-6276 [1] CONNECTOR  
18. 3V-1193 [1] TUBE ASSEM.  
19. 030-7944 [1] ELBOW  
20. 1P-4582 [2] FLANGE  
21. 8K-0768 [1] HOSE ASSEM. 56.36 cm(34 in.)  
22. 8F-6711 [2] SEAL  
23. 0S-1573 [4] BOLT  
24. [1] TUBE ASSEM.  
25. 1P-3705 [2] SEAL  
26. 0T-0768 [8] BOLT  
  3B-4507 [8] LOCKWASHER  
27. 8K-0777 [1] TUBE ASSEM.  
28. 1P-3709 [2] SEAL  
29. 2J-6540 [4] CLAMP  
30. 5P-1260 H HOSE 15.24 cm(6 in.)  
31. 4H-3506 [1] CLAMP  
  0L-1351 [1] BOLT  
32. 8K-0785 [1] TUBE ASSEM.  
    (Includes)
33. 9S-7583 [1] PLUG  
  030-4606 [1] SEAL  
34. 9M-4594 [1] SPACER  
35. 0S-1571 [1] BOLT  
36. 3B-4506 [2] LOCKWASHER  
37. 030-7966 [2] ELBOW  
38. 8K-4022 [1] HOSE ASSEM. 30.48 cm(12 in.)  
39. 1S-0724 [2] CLIP  
40. 8K-4024 [1] HOSE ASSEM. 55.88 cm(22 in.)  
41. 030-7951 [2] ELBOW  
42. 8K-3218 [1] HOSE ASSEM.  
    (Includes)
  5P-0202 H HOSE 38 cm(14.96 in.)  
43. 5P-0477 [2] SLEEVE  
44. 2P-6732 [2] STEM ASSEM.  
  H   ORDER BY THE CENTIMETRE
 

#SEBP11590288
 

3V-1912: RETURN AND FILTER LINES GROUP

3v1912 RETURN AND FILTER LINES GROUP--Part 2 of 2
Serial No. 51U2034 to 51U2232 inclusive
9J2084 Valve, 9J3952 Filter and 9J2041 Valve parts are shown
on Pages 139, 142 and 143
c214361 SEBP1159
3V1912 RETURN AND FILTER LINES GROUP Parts scheme
  For full view, you need register

Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-3952 Y [1] FILTER GROUP  
    (Separate Illustration)
2. 8K-1225 [2] CLAMP  
3. 1D-4719 [2] NUT  
4. 8K-3966 [1] TUBE ASSEM.  
5. 030-7945 [1] ELBOW  
6. 7M-8485 [2] SEAL  
7. 8K-3967 [1] TUBE ASSEM.  
8. 030-7935 [1] CONNECTOR  
9. 9J-2041 Y [1] VALVE GROUP  
    (Separate Illustration)
10. 1P-3709 [4] SEAL  
11. 8K-4117 [1] ELBOW  
12. 4B-4280 [8] WASHER  
13. 0S-1573 [4] BOLT  
14. 3B-4508 [16] LOCKWASHER  
15. 8F-6711 [1] SEAL  
16. 1P-4582 [4] FLANGE  
17. 0S-1585 [8] BOLT  
18. 1A-1460 [10] BOLT  
19. 8K-0783 [1] TUBE ASSEM.  
    (Includes)
20. 9S-7583 [1] PLUG  
  030-4606 [1] SEAL  
21. 8K-3986 [1] TUBE ASSEM.  
22. 9J-2084 Y [1] VALVE GROUP  
    (Separate Illustration)
23. 9J-4066 [1] SCREEN ASSEM.  
24. 7J-0670 [2] ELEMENT ASSEM.  
25. 0V-0375 [4] BOLT  
  Y   SEPARATE ILLUSTRATION
 

#SEBP11590289
 

3V-1912: RETURN AND FILTER LINES GROUP

3V1912 RETURN AND FILTER LINES GROUP--Part 1--Type 1
Serial No. 51U2233 to 2727, 2729 to 2733 & 51U2735--Up & 61X1--Up
c215492 SEBP1159
3V1912 RETURN AND FILTER LINES GROUP Parts scheme
  For full view, you need register

Parts for your 225 EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1P-5767 [4] FLANGE  
2. 1P-3704 [2] SEAL  
3. 1A-1460 C [4] BOLT  
4. 4B-4280 C [24] WASHER  
5. 0V-0375 [4] BOLT  
6. 7M-8485 [2] SEAL  
7. 8K-0775 [1] TUBE ASSEM.  
    (Includes)
8. 1N-5998 [1] PLUG  
  6K-6307 [1] SEAL  
9. 1P-3707 [1] SEAL  
10. 1D-4566 [4] BOLT  
11. 3B-4508 C [4] LOCKWASHER  
12. 1P-4579 [2] FLANGE  
13. 0S-1585 C [16] BOLT  
14. 8K-0767 [1] HOSE ASSEM. 53.04 cm(20.88 in.)  
15. 7F-8267 [1] SEAL  
16. 3D-2824 [2] SEAL  
17. 2R-6276 [1] CONNECTOR  
18. 3V-1193 [1] TUBE ASSEM.  
19. 030-7944 [1] ELBOW  
20. 1P-4582 C [6] FLANGE  
21. 8K-0768 [1] HOSE ASSEM. 56.36 cm(34 in.)  
22. 8F-6711 C [4] SEAL  
23. 030-7951 C [2] ELBOW  
24. [1] TUBE ASSEM.  
25. 1P-3705 [2] SEAL  
26. 0T-0768 [8] BOLT  
  3B-4507 [8] LOCKWASHER  
27. 3V-8849 C [1] HOSE ASSEM.  
    (Includes)
  5P-0184 H HOSE 67 cm(26.37 in.)  
28. 4S-7493 [1] STEM ASSEM.  
29. 2P-6704 [1] STEM ASSEM.  
30. 4S-7507 [2] SLEEVE  
31. 8K-3218 [1] HOSE ASSEM.  
    (Includes)
  5P-0202 H HOSE 38 cm(14.96 in.)  
32. 5P-0477 [2] SLEEVE  
33. 2P-6732 [2] STEM ASSEM.  
34. 9M-4594 [1] SPACER  
35. 0S-1571 [1] BOLT  
36. 3B-4506 C [1] LOCKWASHER  
37. 030-7966 [2] ELBOW  
38. 8K-4022 [1] HOSE ASSEM. 30.48 cm(12 in.)  
39. 1S-0724 [2] CLIP  
40. 8K-4024 [1] HOSE ASSEM. 55.88 cm(22 in.)  
  C   INDICATES CHANGE
  H   ORDER BY THE CENTIMETRE
 

Information:

Technical Information Bulletin
Spring In 9T-0122 Line Relief Valve May Not Operate Correctly
Spring In 9T-0122 Line Relief Valve May Not Operate Correctly
Specifications
Combiner, Summing And Main Relief Valve<BR> (9J733)
225 EXCAVATOR HYDRAULIC SYSTEM
Line Relief Valves
225 EXCAVATOR HYDRAULIC SYSTEM
Combiner And Main Relief Valve<BR> (9T1746), 3G3942 Relief Valve, 9T1745 Combiner Valve
SUPPLEMENT FOR 225 EXCAVATOR HYDRAULIC PUMPS & MOTORS
Line Relief Valve For Swing Circuit<BR> (9J8732), 3G9011 Valve Group
SUPPLEMENT FOR 225 EXCAVATOR HYDRAULIC PUMPS & MOTORS
Combiner, Summing And Main Relief Valve<BR> (3G3943)
225 EXCAVATOR HYDRAULIC SYSTEM
Combiner, Summing And Main Relief Valve<BR> (3G3944)
225 EXCAVATOR HYDRAULIC SYSTEM
Line Relief Valve For Swing Circuit<BR> (9J8732)
225 EXCAVATOR HYDRAULIC SYSTEM
Oil Cooler Relief Valve<BR> (3G2246)
225 EXCAVATOR HYDRAULIC SYSTEM
Tool Operating Manual
Repairing Line Relief Valve Seats in Hydraulic Control Valves Using the 229-3612 Hydraulic Valve Seat Repair Kit{0738, 5117}
Repairing Line Relief Valve Seats in Hydraulic Control Valves Using the 229-3612 Hydraulic Valve Seat Repair Kit{0738, 5117}
Disassembly and Assembly
Main System Relief Valve
225 EXCAVATOR VEHICLE SYSTEMS
Line Relief Valves
225 EXCAVATOR VEHICLE SYSTEMS
Oil Cooler Relief Valve
225 EXCAVATOR VEHICLE SYSTEMS
Main System Relief Valve
225 EXCAVATOR VEHICLE SYSTEMS
Line Relief Valves
225 EXCAVATOR VEHICLE SYSTEMS
Swing Relief Valve
225 EXCAVATOR VEHICLE SYSTEMS
Service Magazine
New Line Relief Valves Have Higher Leak Pressures And Less Noise{5453,5463,5464,5550}
1985/06/03
New Hydraulic Adjustment Procedures And Main Relief Pressures{5066,5069,5454}
1988/06/20
The 229-3612 Valve Seat Tool Gp Is Available to Repair Line Relief Valve Seats {0738, 5117}
2012/01/19

Caterpillar Parts SIS Catalog 225 :

VALVE GP-PITCH RELIEF
8J-2057 VALVE GP-PITCH RELIEF
VALVE GP-REDUCING
8J-8578 VALVE GP-REDUCING
FILTER GP-OIL
9J-1212 FILTER GP-OIL
FILTER GP
8J-7390 FILTER GP
VALVE GP-COMBINATION
3G-3943 VALVE GP-COMBINATION
LINES GP-PUMP
3V-5333 LINES GP-PUMP
LINES GP-PUMP
3V-5333 LINES GP-PUMP
LINES GP-PUMP
3V-5333 LINES GP-PUMP
VALVE GP-REDUCING
9J-4031 VALVE GP-REDUCING
COMBINATION AND RELIEF VALVE GROUP
9J-0773 COMBINATION AND RELIEF VALVE GROUP
VALVE GP
9J-0775 VALVE GP
VALVE GP-RELIEF
8J-2460 VALVE GP-RELIEF
SUMMING VALVE GROUP
9J-0776 SUMMING VALVE GROUP
VALVE GP-DRAIN
9J-2084 VALVE GP-DRAIN
RETURN AND FILTER LINES GROUP
3V-1912 RETURN AND FILTER LINES GROUP
RETURN AND FILTER LINES GROUP
3V-1912 RETURN AND FILTER LINES GROUP

Truck sale:

CATERPILLAR 225 1985
 
CATERPILLAR 225 1985
- TRACK EXCAVATORS
ZEPPELIN BAUMASCHINEN
Gebrauchtmaschinen Pool Karl-Bröger-Strasse 8 - Alsfeld
 
 
CATERPILLAR 225 1979
- TRACK EXCAVATORS
PETERSON TRACTOR CO
CATERPILLAR 225 1984
 
CATERPILLAR 225 1984
- TRACK EXCAVATORS
MILTON CAT
100 Quarry Drive - MILFORD - Massachus
1986 CAT 225
Call 
1986 CAT 225

Sound Heavy Machinery
North Carolina
1977 CAT 225
USD $26,900 
1977 CAT 225

Construction Station
Wayne, Michigan
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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.