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7N1233 FUEL INJECTION PUMP GROUP--End View--Type 3 Part 2 of 2 Engine Serial No. 48W1196 to 48W4267 inclusive Part of 7N1238 Governor & Fuel Injection Pump Group shown on Page 54A 988B


FUEL SYSTEM
PUMP GP-FUEL INJECTION
PUMP GP-FUEL TRANSFER

WHEEL LOADER 988B WHEEL LOADER 50W
 988B WHEEL LOADER 50W00001-06040 (MACHINE) POWERED BY 3408 ENGINE SEBP1079 988B 50W   (1976)

FUEL SYSTEM

PUMP GP-FUEL INJECTION
FUEL INJECTION PUMP GROUP
7N-1233 FUEL INJECTION PUMP GROUP
FUEL INJECTION PUMP GROUP
7N-1233 FUEL INJECTION PUMP GROUP
FUEL INJECTION PUMP GROUP
7N-1233 FUEL INJECTION PUMP GROUP
PUMP GP-FUEL INJECTION
9N-3326 PUMP GP-FUEL INJECTION
PUMP GP-FUEL INJECTION
9N-3326 PUMP GP-FUEL INJECTION
PUMP GP-FUEL INJECTION
9N-3326 PUMP GP-FUEL INJECTION
 

#SEBP10790210
 

7N-1233: FUEL INJECTION PUMP GROUP

7N1233 FUEL INJECTION PUMP GROUP--End View--Type 3 Part 2 of 2
Engine Serial No. 48W1196 to 48W4267 inclusive
Part of 7N1238 Governor & Fuel Injection Pump Group shown on Page 54A
c227666 SEBP1079
7N1233 FUEL INJECTION PUMP GROUP Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-0824 [1] VALVE ASSEM.  
    (Includes)
  7L-8696 [1] SPRING  
2. 3K-0360 [1] SEAL  
3. 8N-0561 C [1] GEAR (9 teeth)  
4. 6N-7695 [1] COVER  
  6L-5897 [2] BOLT  
5. 6N-4165 [1] PINION ASSEM.  
    (Includes)
6. 6N-4090 [1] DOWEL  
7. 8N-0560 [1] GEAR (11 teeth)  
8. 6N-6926 [1] SPRING  
9. 4N-0906 [1] SHAFT  
10. 5F-9144 [1] SEAL  
11. 7N-2518 [1] LEVER  
12. 031-0215 [2] BOLT  
13. 4N-0907 [1] LEVER  
14. 4N-0905 C [1] GEAR (42 teeth)  
15. 4N-0776 [1] RETAINER  
16. 0S-1618 [3] BOLT  
17. 5M-6214 [1] PLUG  
  C   INDICATES CHANGE
 

#SEBP10790211
 

9N-3326: PUMP GP-FUEL INJECTION

9N3326 FUEL INJECTION PUMP GROUP--Side View--Type 1 Part 1 of 2
Engine Serial No. 48W4268 to 48W7684 inclusive. Part of 7N6272 Governor, Fuel
Injection & Fuel Transfer Pump Group shown on Page 54B. 7N4574 Housing and
6N1043 Pump parts are shown on Pages 65B & 66
c169611 SEBP1079
9N3326 PUMP GP-FUEL INJECTION Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1634 [1] COVER  
  4N-1636 [1] GASKET  
2. 2A-0762 [2] BOLT  
3. 9S-4191 [1] PLUG  
  3J-1907 [1] SEAL  
4. 4B-4158 [2] SCREW  
5. 8H-9204 [8] WASHER  
6. 2M-4314 [8] BUSHING  
7. 9S-8008 [2] PLUG  
  3D-2824 [2] SEAL  
8. 1T-0284 [1] BOLT  
9. 7N-2694 [1] BRACKET ASSEM.  
    (Includes)
10. 6N-6955 [1] PIN  
11. 7N-2693 [1] SPRING  
12. 4N-1572 [1] LINK  
13. 4N-0900 [1] RACK (R.H.)  
  4N-0901 [1] RACK (L.H.)  
14. 1M-1077 [8] SEAL  
15. 6N-1043 Y [8] PUMP GROUP  
    (Separate Illustration)
16. 5M-2697 [8] SPACER 4.32 mm(.170 in.) thick  
  2M-4208 [8] SPACER 4.42 mm(.174 in.) thick  
  2M-4209 [8] SPACER 4.52 mm(.178 in.) thick  
  2M-4210 [8] SPACER 4.62 mm(.182 in.) thick  
  [8] SPACER 4.72 mm(.186 in.) thick  
  2M-4212 [8] SPACER 4.83 mm(.190 in.) thick  
  5M-2691 [8] SPACER 4.93 mm(.194 in.) thick  
  5S-7189 [8] SPACER 5.03 mm(.198 in.) thick  
17. 7N-4574 Y [1] HOUSING ASSEM.  
    (Separate Illustration)
18. 3S-9736 [8] LIFTER ASSEM.  
19. 4N-0599 [1] CAMSHAFT  
20. 5P-0537 [2] WASHER  
  Y   SEPARATE ILLUSTRATION
 

#SEBP10790212
 

9N-3326: PUMP GP-FUEL INJECTION

9N3326 FUEL INJECTION PUMP GROUP--End View--Type 1 Part 2 of 2
Engine Serial No. 48W4268 to 48W7684 inclusive
Part of 7N6272 Governor, Fuel Injection & Fuel Transfer Pump Group shown on Page 54B
c227667 SEBP1079
9N3326 PUMP GP-FUEL INJECTION Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-0824 [1] VALVE ASSEM.  
    (Includes)
  7L-8696 [1] SPRING  
2. 3K-0360 [1] SEAL  
3. 6N-7694 [1] GEAR (9 teeth)  
4. 6N-7695 [1] COVER  
  6L-5897 [2] BOLT  
5. 6N-4165 [1] PINION ASSEM.  
    (Includes)
6. 6N-4090 [1] DOWEL  
7. 6N-7693 [1] GEAR (11 teeth)  
8. 5M-6214 [1] PLUG  
9. 0S-1618 [3] BOLT  
10. 5F-9144 [1] SEAL  
11. 4N-0776 [1] RETAINER  
12. 4N-0905 C [1] GEAR (42 teeth)  
  C   INDICATES CHANGE
 

#SEBP10790213
 

9N-3326: PUMP GP-FUEL INJECTION

9N3326 FUEL INJECTION PUMP GROUP--Side View--Type 2 Part 1 of 2
Engine Serial No. 48W4268 to 48W7684 inclusive. Part of 7N6272 Governor, Fuel
Injection & Fuel Transfer Pump Group shown on Page 54B. 7N4574 Housing and
6N1043 Pump parts are shown on Pages 65B & 66
c169611 SEBP1079
9N3326 PUMP GP-FUEL INJECTION Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1634 [1] COVER  
  4N-1636 [1] GASKET  
2. 2A-0762 [2] BOLT  
3. 9S-4191 [1] PLUG  
  3J-1907 [1] SEAL  
4. 4B-4158 [2] SCREW  
5. 8H-9204 [8] WASHER  
6. 2M-4314 [8] BUSHING  
7. 9S-8008 [2] PLUG  
  3D-2824 [2] SEAL  
8. 1T-0284 [1] BOLT  
9. 7N-2694 [1] BRACKET ASSEM.  
    (Includes)
10. 6N-6955 [1] PIN  
11. 7N-2693 [1] SPRING  
12. 4N-1572 [1] LINK  
13. 4N-0900 [1] RACK (R.H.)  
  4N-0901 [1] RACK (L.H.)  
14. 1M-1077 [8] SEAL  
15. 6N-1043 Y [8] PUMP GROUP  
    (Separate Illustration)
16. 5M-2697 [8] SPACER 4.32 mm(.170 in.) thick  
  2M-4208 [8] SPACER 4.42 mm(.174 in.) thick  
  2M-4209 [8] SPACER 4.52 mm(.178 in.) thick  
  2M-4210 [8] SPACER 4.62 mm(.182 in.) thick  
  [8] SPACER 4.72 mm(.186 in.) thick  
  2M-4212 [8] SPACER 4.83 mm(.190 in.) thick  
  5M-2691 [8] SPACER 4.93 mm(.194 in.) thick  
  5S-7189 [8] SPACER 5.03 mm(.198 in.) thick  
17. 7N-4574 Y [1] HOUSING ASSEM.  
    (Separate Illustration)
18. 3S-9736 [8] LIFTER ASSEM.  
19. 4N-0599 [1] CAMSHAFT  
20. 5P-0537 [2] WASHER  
  Y   SEPARATE ILLUSTRATION
 

#SEBP10790214
 

9N-3326: PUMP GP-FUEL INJECTION

9N3326 FUEL INJECTION PUMP GROUP--End View--Type 2 Part 2 of 2
Engine Serial No. 48W4268 to 48W7684 inclusive
Part of 7N6272 Governor, Fuel Injection & Fuel Transfer Pump Group shown on Page 54B
c227668 SEBP1079
9N3326 PUMP GP-FUEL INJECTION Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-0824 [1] VALVE ASSEM.  
    (Includes)
  7L-8696 [1] SPRING  
2. 3K-0360 [1] SEAL  
3. 8N-0561 C [1] GEAR (9 teeth)  
4. 6N-7695 [1] COVER  
  6L-5897 [2] BOLT  
5. 6N-4165 [1] PINION ASSEM.  
    (Includes)
6. 6N-4090 [1] DOWEL  
7. 8N-0560 C [1] GEAR (11 teeth)  
8. 5M-6214 [1] PLUG  
9. 0S-1618 [3] BOLT  
10. 5F-9144 [1] SEAL  
11. 4N-0776 [1] RETAINER  
12. 4N-0905 C [1] GEAR (42 teeth)  
  C   INDICATES CHANGE
 

#SEBP10790215
 

9N-3328: PUMP GP-FUEL INJECTION

9N3328 FUEL INJECTION PUMP GROUP--Side View Part 1 of 2
Engine Serial No. 48W7685-Up. Part of 8N6600 Governor, Fuel Injection & Fuel
Transfer Pump Group shown on Page 54C. 7N4574 Housing and 7N1185 Pump
parts are shown on Pages 65B & 66A
c219243 SEBP1079
9N3328 PUMP GP-FUEL INJECTION Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-1634 [1] COVER  
  4N-1636 [1] GASKET  
2. 2A-0762 [2] BOLT  
3. 9S-4191 [1] PLUG  
  3J-1907 [1] SEAL  
4. 4B-4158 [2] SCREW  
5. 8H-9204 [8] WASHER  
6. 2M-4314 [8] BUSHING  
7. 9S-8008 [2] PLUG  
  3D-2824 [2] SEAL  
8. 1T-0284 [1] BOLT  
9. 7N-2694 [1] BRACKET ASSEM.  
    (Includes)
10. 6N-6955 [1] PIN  
11. 7N-2693 [1] SPRING  
12. 4N-1572 [1] LINK  
13. 4N-0900 [1] RACK (R.H.)  
  4N-0901 [1] RACK (L.H.)  
14. 1M-1077 [8] SEAL  
15. 7N-1185 Y [8] PUMP GROUP  
    (Separate Illustration)
16. 5M-2697 [8] SPACER 4.32 mm(.170 in.) thick  
  2M-4208 [8] SPACER 4.42 mm(.174 in.) thick  
  2M-4209 [8] SPACER 4.52 mm(.178 in.) thick  
  2M-4210 [8] SPACER 4.62 mm(.182 in.) thick  
  [8] SPACER 4.72 mm(.186 in.) thick  
  2M-4212 [8] SPACER 4.83 mm(.190 in.) thick  
  5M-2691 [8] SPACER 4.93 mm(.194 in.) thick  
  5S-7189 [8] SPACER 5.03 mm(.198 in.) thick  
17. 7N-4574 Y [1] HOUSING ASSEM.  
    (Separate Illustration)
18. 9N-2505 [8] LIFTER ASSEM.  
19. 6N-1480 [1] CAMSHAFT  
20. 5P-0537 [2] WASHER  
  Y   SEPARATE ILLUSTRATION
 

#SEBP10790216
 

9N-3328: PUMP GP-FUEL INJECTION

9N3328 FUEL INJECTION PUMP GROUP--End View Part 2 of 2
Engine Serial No. 48W7685-Up
Part of 8N6600 Governor, Fuel Injection & Fuel Transfer Pump Group shown on Page 54C
c222257 SEBP1079
9N3328 PUMP GP-FUEL INJECTION Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-0824 [1] VALVE ASSEM.  
    (Includes)
  7L-8696 [1] SPRING  
2. 3K-0360 [1] SEAL  
3. 8N-0561 C [1] GEAR (idler-9 teeth)  
4. 6N-7695 [1] COVER  
  6L-5897 [2] BOLT  
5. 6N-4165 [1] PINION ASSEM.  
    (Includes)
6. 6N-4090 [1] DOWEL  
7. 8N-0560 C [1] GEAR (drive-11 teeth)  
8. 5M-6214 [1] PLUG  
9. 0S-1618 [3] BOLT  
10. 5F-9144 [1] SEAL  
11. 4N-0776 [1] RETAINER  
12. 4N-0905 [2] GEAR (Bevel - 42 teeth)  
  C   INDICATES CHANGE
 

#SEBP10790217
 

4N-1101: PUMP GP-FUEL TRANSFER

4N1101 FUEL TRANSFER PUMP GROUP
Part of 6N1676, 7N6272 & 8N6600 Governor and Fuel Injection Pump Groups
shown on Pages 54, 54B & 54C
c216560 SEBP1079
4N1101 PUMP GP-FUEL TRANSFER Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5M-6213 [1] PLUG  
2. 4N-1105 [1] GASKET  
3. 5M-6214 C [2] PLUG-PIPE  
4. 4N-1111 Y [1] PUMP GP-FUEL TRANSFER  
5. 0S-1617 [2] BOLT  
6. 4N-7437 [1] PLUG-THREAD O-RING  
  7J-0204 [1] SEAL-O-RING  
7. 4N-1091 [1] HOUSING AS  
8. 2D-8576 [1] BEARING-FLANGE  
9. 4N-1098 [1] SHAFT AS  
10. 4N-1102 [1] GEAR-TRANSFER PUMP DRIVE  
11. 9S-9332 C [1] FITTING-ELBOW  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#SEBP10790218
 

4N-1111: PUMP GP-FUEL TRANSFER

4N1111 FUEL TRANSFER PUMP GROUP--Type 1
Part of 4N1101 Fuel Transfer Pump Group
c225837 SEBP1079
4N1111 PUMP GP-FUEL TRANSFER Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2B-2694 [3] BOLT  
2. 4N-1116 [1] SHAFT ASSEM.  
    (Includes)
3. 4N-1119 [1] GEAR (10 teeth)  
4. 4N-4249 [1] SEAL  
5. 5J-5314 [3] BOLT  
6. 6N-1068 [1] COVER  
7. 7M-7260 LIQUID GASKET  
8. 4N-1120 [1] BODY ASSEM.  
    (Includes)
9. 7S-4433 [1] FERRULE  
10. 1P-2298 [1] VALVE ASSEM.  
11. 8F-6058 [1] BUSHING  
12. 4N-4248 [1] SEAL  
13. 4N-7357 [1] BEARING  
14. 4N-4249 [1] SEAL  
15. 8H-9804 [1] SHAFT  
16. 8S-1925 [1] GEAR (11 teeth)  
17. 3H-1489 [1] KEY  
18. 2F-8616 [1] NUT  
19. 6J-2419 [1] SEAL  
20. 4N-1119 [1] GEAR (10 teeth)  
21. 7S-4440 [1] BOLT  
  4N-7465 C [1] GASKET  
22. 6N-1069 [1] SPRING  
23. 8M-0874 [1] PLUNGER ASSEM.  
24. 7H-3171 C [1] PLUG  
  C   INDICATES CHANGE
 

#SEBP10790219
 

4N-1111: PUMP GP-FUEL TRANSFER

4N1111 FUEL TRANSFER PUMP GROUP--Type 2
Part of 4N1101 Fuel Transfer Pump Group shown on Page 64
c225838 SEBP1079
4N1111 PUMP GP-FUEL TRANSFER Parts scheme
  For full view, you need register

Parts for your 988B WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2B-2694 [3] BOLT  
2. 4N-1116 [1] SHAFT AS-PUMP  
3. 4N-1119 [1] GEAR-TRANSFER PUMP (10 T)  
4. 5P-9295 C [1] SEAL-LIP TYPE  
5. 5J-5314 [3] BOLT  
6. 7N-6128 C [1] COVER-TRANSFER PUMP  
7. 7M-7260 LIQUID GASKET  
8. 4N-1120 [1] BODY AS-TRANSFER PUMP  
9. 7S-4433 [1] FERRULE  
10. 1P-2298 [1] VALVE AS  
11. 8F-6058 [1] BEARING  
12. 5P-9294 C [1] SEAL-LIP TYPE  
13. 4N-7357 [1] BEARING-SLEEVE  
14. 5P-9295 C [1] SEAL-LIP TYPE  
15. 8H-9804 [1] SHAFT-PUMP IDLER  
16. 8S-1925 [1] GEAR-SHAFT DRIVE (11 T)  
17. 3H-1489 [1] KEY-WOODRUFF  
18. 2F-8616 [1] NUT-SELF LOCKING  
19. 6J-2419 [1] SEAL-O-RING  
20. 4N-1119 [1] GEAR-TRANSFER PUMP (10 T)  
21. 7S-4440 [1] BOLT-RETAINING  
  4N-7465 C [1] GASKET  
22. 6N-1069 [1] SPRING  
23. 8M-0874 [1] PLUNGER AS-VALVE  
24. 3K-8460 C [1] PLUG  
  1J-9671 C [1] SEAL-O-RING  
  C   CHANGE FROM PREVIOUS TYPE
 

Information:

Caterpillar Parts SIS Catalog 988B :

FUEL INJECTION PUMP GROUP
7N-1233 FUEL INJECTION PUMP GROUP
FUEL INJECTION PUMP GROUP
7N-1233 FUEL INJECTION PUMP GROUP
FUEL INJECTION PUMP GROUP
7N-1233 FUEL INJECTION PUMP GROUP
FUEL INJECTION PUMP GROUP
7N-1233 FUEL INJECTION PUMP GROUP
FUEL INJECTION PUMP GROUP
7N-1233 FUEL INJECTION PUMP GROUP
FUEL INJECTION PUMP GROUP
7N-2520 FUEL INJECTION PUMP GROUP
FUEL INJECTION PUMP GROUP
7N-2520 FUEL INJECTION PUMP GROUP
CONTROL GP-TORQUE
9N-2893 CONTROL GP-TORQUE
PUMP GP-FUEL INJECTION
9N-3326 PUMP GP-FUEL INJECTION
PUMP GP-FUEL INJECTION
9N-3326 PUMP GP-FUEL INJECTION
PUMP GP-FUEL INJECTION
9N-3326 PUMP GP-FUEL INJECTION
PUMP GP-FUEL INJECTION
9N-3326 PUMP GP-FUEL INJECTION
PUMP GP-FUEL INJECTION
9N-3328 PUMP GP-FUEL INJECTION
PUMP GP-FUEL INJECTION
9N-3328 PUMP GP-FUEL INJECTION
PUMP GP-FUEL TRANSFER
4N-1101 PUMP GP-FUEL TRANSFER
PUMP GP-FUEL TRANSFER
4N-1111 PUMP GP-FUEL TRANSFER

Truck sale:

Caterpillar 988B
 
Caterpillar 988B
- Wheel Loaders
N C MACHINERY CO.
Caterpillar 988B, Wheel Loaders, Construction
47,951 
Caterpillar 988B, Wheel Loaders, Construction
- Wheel loaders
TOROMONT CAT
Caterpillar 988B, Wheel Loaders, Construction
 
Caterpillar 988B, Wheel Loaders, Construction
- Wheel loaders
CGT - COMPAGNIA GENERALE TRATTORI
Caterpillar 988B, Wheel Loaders, Construction
63,246 
Caterpillar 988B, Wheel Loaders, Construction
- Wheel loaders

Caterpillar 988B, Wheel Loaders, Construction
 
Caterpillar 988B, Wheel Loaders, Construction
- Wheel Loaders
CGT - COMPAGNIA GENERALE TRATTORI
Italy
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