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8J7499 PILOT VALVE GROUP--Type 3 Part of 8J8601 and 8J7489 Valve Groups shown on Pages 16 and 17 173B


HYDRAULIC SYSTEM
VALVE GP-PILOT
PUMP GP

HYDRAULIC CONTROL 173B HYDRAULIC CONTROL 28A
 173B HYDRAULIC CONTROL 28A00001-13500 SEBP1017 173B 28A   (1983)

HYDRAULIC SYSTEM

VALVE GP-PILOT
VALVE GP-PILOT
8J-7499 VALVE GP-PILOT
VALVE GP-PILOT
8J-7499 VALVE GP-PILOT
VALVE GP-PILOT
8J-7499 VALVE GP-PILOT
VALVE GP-PILOT
8J-7494 VALVE GP-PILOT
VALVE GP-PILOT
8J-7494 VALVE GP-PILOT
VALVE GP-PILOT
8J-7494 VALVE GP-PILOT
PILOT PRESSURE RESTRICTOR VALVE GROUP
9J-3581 PILOT PRESSURE RESTRICTOR VALVE GROUP
PILOT PRESSURE RESTRICTOR VALVE GROUP
9J-3581 PILOT PRESSURE RESTRICTOR VALVE GROUP
 

#SEBP10170060
 

8J-7499: VALVE GP-PILOT

8J7499 PILOT VALVE GROUP--Type 3
Part of 8J8601 and 8J7489 Valve Groups shown on Pages 16 and 17
c230076 SEBP1017
8J7499 VALVE GP-PILOT Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-8714 [ 1] HOUSING  
2. 5P-1909 C [ 1] SEAL  
3. 2K-8199 [ 2] SEAL  
4. 0S-1615 [ 2] BOLT  
5. 9J-4772 C [ 1] HOUSING  
6. 7J-7844 [ 4] RETAINER  
7. 3G-8585 C [ 1] SPRING  
8. 9S-8001 [ 1] PLUG  
9. 4J-7533 C [ 2] SEAL  
10. 0S-1616 [ 2] BOLT  
11. 9S-4180 C [ 1] PLUG  
    INDICATES CHANGE
 

#SEBP10170061
 

8J-7494: VALVE GP-PILOT

8J7494 PILOT VALVE GROUP--Type 1
Part of 8J7488 and 8J7489 Valve Groups shown on Pages 16 and 17
c204545 SEBP1017
8J7494 VALVE GP-PILOT Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-4780 [1] HOUSING  
2. 8J-8553 [1] SEAL  
3. 2K-8199 [2] SEAL  
4. 0S-1615 [4] BOLT  
  3B-4504 [4] LOCKWASHER  
5. 9J-4113 [1] HOUSING  
6. 7J-7844 [4] RETAINER  
7. 9J-4800 [1] SPRING  
 

#SEBP10170062
 

8J-7494: VALVE GP-PILOT

8J7494 PILOT VALVE GROUP--Type 2
Part of 8J7488 and 8J7489 Valve Groups shown on Pages 16 and 17
c157168 SEBP1017
8J7494 VALVE GP-PILOT Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-8714 [1] HOUSING  
2. 8J-8553 [1] SEAL  
3. 2K-8199 [2] SEAL  
4. 0S-1615 C [2] BOLT  
5. 9J-4113 [1] HOUSING  
6. 7J-7844 [4] RETAINER  
7. 9J-4800 [1] SPRING  
8. 0S-1616 [2] BOLT  
9. 3B-4504 [4] LOCKWASHER  
  C   INDICATES CHANGE
 

#SEBP10170063
 

8J-7494: VALVE GP-PILOT

8J7494 PILOT VALVE GROUP--Type 3
Part of 8J7488 and 8J7489 Valve Groups
c182324 SEBP1017
8J7494 VALVE GP-PILOT Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9J-8714 [1] HOUSING  
2. 6V-1949 C [1] SEAL  
3. 2K-8199 [2] SEAL  
4. 0S-1615 [2] BOLT  
5. 9J-4772 C [1] HOUSING  
6. 7J-7844 [4] RETAINER  
7. 9J-4800 [1] SPRING  
8. 9S-4180 [1] PLUG  
9. 4J-7533 C [1] SEAL  
10. 0S-1616 [2] BOLT  
  C   INDICATES CHANGE
 

#SEBP10170064
 

7J-4634: HYDRAULIC PUMP GROUP

7J4634 HYDRAULIC PUMP GROUP
Replaced by 9J5058 shown on Page 19
c205501 SEBP1017
7J4634 HYDRAULIC PUMP GROUP Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2H-3931 H [1] SEAL  
  1S-0668 H [1] RING  
  1H-7339 H [1] SEAL  
  4F-7952 H [1] SEAL  
  4J-9222 H [1] RING  
  4J-1657 [1] COVER  
  O [10] VANE  
  O [10] INSERT  
  1D-4574 [4] BOLT  
  O [1] ROTOR  
  4J-2457 [1] COVER  
  O [1] PLATE  
  0T-0319 [4] BOLT  
  O [1] RING  
  O [2] PIN  
  O [2] SCREW  
  O [1] PLATE ASSEM.  
  J [2] SCREW  
  J [10] VANE  
  J [10] INSERT  
  J [2] PIN  
  2H-4145 H [1] SEAL  
  7J-4733 [1] BODY  
  7J-7967 R [1] CARTRIDGE ASSEM.  
    (14 Gallon Per Minute)
    (Consists of Parts Marked O)
  7J-0561 R [1] CARTRIDGE ASSEM.  
    (21 Gallon Per Minute)
    (Consists of Parts Marked J)
  8J-0205 C [1] SHAFT  
  4J-0980 J [1] SEAL  
  4M-7648 [1] WASHER  
  1L-8497 [1] RING  
  6B-1124 [1] BEARING  
  4M-7652 [1] RING  
  1S-0670 H [1] RING  
  1H-9696 J [1] SEAL  
  H [1] PLATE  
  1S-0669 H [1] RING  
  2H-3934 H [1] SEAL  
  J [1] ROTOR  
  J [1] RING  
  J [1] PLATE ASSEM.  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  9J-3000 C [1] KIT (seal)  
    (Consists of Parts Marked H)
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#SEBP10170065
 

9J-5058: PUMP GP-VANE

9J5058 HYDRAULIC PUMP GROUP--Type 1
c156235 SEBP1017
9J5058 PUMP GP-VANE Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  2H-3931 H [1] SEAL  
  1S-0668 H [1] RING  
  1H-7339 H [1] SEAL  
  4F-7952 H [1] SEAL  
  4J-9222 H [1] RING  
  4J-1657 [1] COVER  
  L [10] VANE  
  L [10] INSERT  
  1D-4574 [4] BOLT  
  L [1] ROTOR  
  4J-2457 [1] COVER  
  L [1] PLATE  
  0T-0319 [4] BOLT  
  L [1] RING  
  L [2] PIN  
  L [2] SCREW  
  L [1] PLATE ASSEM.  
  J [2] SCREW  
  J [10] VANE  
  J [10] INSERT  
  J [2] PIN  
  2H-4145 H [1] SEAL  
  9J-5121 [1] BODY  
  9J-5150 [1] SEAL  
  7J-7967 R [1] CARTRIDGE ASSEM.  
    (14 Gallon Per Minute)
    (Consists of Parts Marked L)
  7J-0561 R [1] CARTRIDGE ASSEM.  
    (21 Gallon Per Minute)
    (Consists of Parts Marked J)
  9J-5104 [1] SHAFT  
  4J-0980 H [1] SEAL  
  4M-7648 [1] WASHER  
  1L-8497 [1] RING  
  6B-1124 [1] BEARING  
  4M-7652 [1] RING  
  1S-0670 H [1] RING  
  1H-9696 J [1] SEAL  
  H [1] PLATE  
  4H-0407 H [1] PLUG  
  1S-0669 H [1] RING  
  2H-3934 H [1] SEAL  
  J [1] ROTOR  
  J [1] RING  
  J [1] PLATE ASSEM.  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  9J-5112 [1] KIT (seal)  
    (Consists of Parts Marked H)
  R   REMFG PART MAY BE AVAILABLE
 

#SEBP10170066
 

9J-5058: PUMP GP-VANE

9J5058 HYDRAULIC PUMP GROUP--Type 2
3G2201 and 3G2721 Cartridge parts are shown on Page 19B
c172726 SEBP1017
9J5058 PUMP GP-VANE Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4J-1657 [1] COVER  
2. 1D-4574 [4] BOLT  
3. 4J-2457 [1] COVER  
4. 3G-2721 RYC [1] CARTRIDGE GROUP (14 gpm)  
    (Separate Illustration)
  1U-0378 CJ [1] FLEX PLATE KIT (repair 20 vq)  
5. 4M-7652 [1] RING (outer)  
6. 1L-8497 [1] RING (inner)  
7. 6B-1124 [1] BEARING  
8. 4M-7648 [1] WASHER  
9. 4J-0980 [1] SEAL  
10. 9J-5150 [1] SEAL  
11. 9J-5104 [1] SHAFT  
12. 9J-5121 [1] BODY  
13. 3G-2201 YC [1] CARTRIDGE GROUP (21 gpm)  
    (Separate Illustration)
  1U-0379 CJ [1] FLEX PLATE KIT (repair 25 vq)  
14. 0T-0319 [4] BOLT  
15. 3G-2632 C [1] PLUG  
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
  J   NOT PART OF 9J5058 PUMP GROUP
  C   INDICATES CHANGE
 

#SEBP10170067
 

9J-5058: PUMP GP-VANE

9J5058 HYDRAULIC PUMP GROUP--Type 3
3G7655 & 3G7658 Cartridge parts are shown on Page 19D
c179144 SEBP1017
9J5058 PUMP GP-VANE Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4J-1657 [1] COVER  
2. 1D-4574 [4] BOLT  
3. 4J-2457 [1] COVER  
4. 3G-7658 RCY [1] CARTRIDGE GROUP (14 gpm)  
    (Separate Illustration)
  1U-0378 J [1] FLEX PLATE KIT (repair-20 vq)  
5. 4M-7652 [1] RING (outer)  
6. 1L-8497 [1] RING (inner)  
7. 6B-1124 [1] BEARING  
8. 4M-7648 [1] WASHER  
9. 5P-0903 C [1] SEAL  
10. 3G-9193 C [1] SEAL  
11. 9J-5104 [1] SHAFT  
12. 1U-3966 C [1] BODY  
13. 3G-7655 RCY [1] CARTRIDGE GROUP (21 gpm)  
    (Separate Illustration)
  1U-0379 J [1] FLEX PLATE KIT (repair-25 vq)  
14. 0T-0319 [4] BOLT  
15. 3G-7242 C [1] PLUG  
  R   REMFG PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
  C   INDICATES CHANGE
  J   NOT PART OF 9J5058 PUMP GROUP
 

#SEBP10170068
 

3G-2201: CARTRIDGE GROUP

3G2201 CARTRIDGE GROUP--79 L/min (21 GPM)--Replaced by 3G7655 shown
on Page 19D
Part of 9J5058 Hydraulic Control Group shown on Page 19A
c211558 SEBP1017
3G2201 CARTRIDGE GROUP Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3G-2192 [4] RETAINER (seal)  
2. 3G-2191 [4] SEAL  
3. 2H-3934 [1] SEAL  
4. 3G-2193 [1] RING  
5. 1S-0670 [1] RING  
6. 1H-9696 [1] SEAL  
 

#SEBP10170069
 

3G-2721: CARTRIDGE GP-REAR

3G2721 CARTRIDGE GROUP--201 L/min (53 GPM)--Replaced by 3G7658 shown
on Page 19D
Part of 9J5058 Hydraulic Control Group shown on Page 19A
c212614 SEBP1017
3G2721 CARTRIDGE GP-REAR Parts scheme
  For full view, you need register

Parts for your 173B HYDRAULIC CONTROL:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3G-2714 [4] RETAINER (seal)  
2. 3G-2715 [4] SEAL  
3. 2H-3931 [1] SEAL  
4. 3G-2716 [1] RING  
5. 4J-9222 [1] RING  
6. 4F-7952 [1] SEAL  
 

Information:

Disassembly and Assembly
Pilot Valve Group
173, 183, 193 HYDRAULIC CONTROLS

Caterpillar Parts SIS Catalog 173B :

VALVE GP-PILOT
8J-7499 VALVE GP-PILOT
VALVE GP-PILOT
8J-7499 VALVE GP-PILOT
VALVE GP
8J-7489 VALVE GP
VALVE GP
8J-7488 VALVE GP
VALVE GP
8J-8601 VALVE GP
VALVE GP
3G-1772 VALVE GP
VALVE GP-CONTROL
3G-1773 VALVE GP-CONTROL
RIPPER LIFT CONTROL VALVE GROUP
9J-2918 RIPPER LIFT CONTROL VALVE GROUP
VALVE GP-PILOT
8J-7494 VALVE GP-PILOT
VALVE GP-PILOT
8J-7494 VALVE GP-PILOT
VALVE GP-PILOT
8J-7494 VALVE GP-PILOT
HYDRAULIC PUMP GROUP
7J-4634 HYDRAULIC PUMP GROUP
PUMP GP-VANE
9J-5058 PUMP GP-VANE
PUMP GP-VANE
9J-5058 PUMP GP-VANE
PUMP GP-VANE
9J-5058 PUMP GP-VANE
CARTRIDGE GROUP
3G-2201 CARTRIDGE GROUP

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