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FUEL PRIMING PUMP (4N7878 N/S)--Type 2 Part of 2P6780 Engine Arrangement 9H2256 Pump parts are shown on Page 129 950


FUEL SYSTEM
PUMP GP-FUEL PRIMING
PUMP GP-FUEL TRANSFER
FILTER GP-FUEL

WHEEL LOADER 950 WHEEL LOADER 31K
 3304 VEHICULAR ENGINE 31K01201-01485 (MACHINE) UEG0797S 950 31K   (1968)

FUEL SYSTEM

PUMP GP-FUEL PRIMING
FUEL PRIMING PUMP
7S-1251 FUEL PRIMING PUMP
FUEL PRIMING PUMP
4N-7878 FUEL PRIMING PUMP
FUEL PRIMING PUMP
4N-7878 FUEL PRIMING PUMP
 

#UEG0797S0200
 

4N-7878: FUEL PRIMING PUMP

FUEL PRIMING PUMP (4N7878 N/S)--Type 2
Part of 2P6780 Engine Arrangement
9H2256 Pump parts are shown on Page 129
c202742 UEG0797S
4N7878 FUEL PRIMING PUMP Parts scheme
  For full view, you need register

Parts for your 950 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9H-2256 H [1] PUMP ASSEM.  
2. 6N-1005 C [1] TUBE ASSEM.  
5. 4M-5317 [1] BUSHING  
6. 5K-9243 C [4] FITTING  
7. 2P-7715 [1] TUBE ASSEM.  
8. 2B-2695 [2] BOLT  
  9M-1974 [2] WASHER  
9. 7S-1129 [1] BRACKET  
  C   INDICATES CHANGE
  H   SEPARATE ILLUSTRATION
 

#UEG0797S0201
 

7S-4429: PUMP GP-FUEL TRANSFER

7S4429 FUEL TRANSFER PUMP GROUP
Serial No. 78P1 to 78P2572 inclusive. Part of 2P6775, 2P6776, 2P6777, 2P6778,
2P6780, 2P6781, 2P6782 and 2P6783 Engine Arrangements. 7S4430 Fuel
Transfer pump parts are shown on Page 138
c117421 UEG0797S
7S4429 PUMP GP-FUEL TRANSFER Parts scheme
  For full view, you need register

Parts for your 950 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7S-4430 Y [1] PUMP GROUP  
    (Separate Illustration)
2. 7S-2374 [1] GASKET  
3. 4B-3388 [2] BOLT  
  3B-4505 [2] LOCKWASHER  
  Y   SEPARATE ILLUSTRATION
 

#UEG0797S0202
 

7S-4429: PUMP GP-FUEL TRANSFER

7S4429 FUEL TRANSFER PUMP GROUP
Serial No. 78P2573-Up. Part of 2P6775, 2P6776, 2P6777, 2P6778, 2P6780,
2P6781, 2P6782 and 2P6783 Engine Arrangements. 4N4864 Fuel Transfer
Pump parts are shown on Page 137
c145714 UEG0797S
7S4429 PUMP GP-FUEL TRANSFER Parts scheme
  For full view, you need register

Parts for your 950 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-4864 CY [1] PUMP GROUP  
    (Separate Illustration)
2. 7S-2374 [1] GASKET  
3. 4B-3388 [2] BOLT  
  3B-4505 [2] LOCKWASHER  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0797S0203
 

7S-5445: FUEL TRANSFER PUMP GROUP

7S5445 FUEL TRANSFER PUMP GROUP (7S5108 N/S)
Serial No. 78P1 to 78P2223 inclusive
Part of 2P6785 and 2P9561 Engine Arrangements
c103279 UEG0797S
7S5445 FUEL TRANSFER PUMP GROUP Parts scheme
  For full view, you need register

Parts for your 950 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2F-8616 [1] NUT  
2. 8H-9806 [1] GEAR (11 Teeth)  
3. 6J-2419 [2] SEAL  
4. 7S-4439 [1] RING  
5. 7S-4434 [1] BODY ASSEM.  
6. 8F-6058 [1] BEARING  
7. 2S-6838 [1] SHAFT  
    (Parts of 7S4434 Body Assem.)
8. 8S-4368 [1] GEAR (Idler-10 Teeth)  
9. 8S-5986 [1] COVER ASSEM.  
10. 8S-5575 [1] SEAL  
11. 7S-4433 [2] FERRULE  
    (Parts of 8S5986 Cover Assem.)
12. 7S-6701 [2] SCREW  
13. 8S-4373 [1] SHAFT ASSEM.  
14. [1] GEAR (Idler-10 Teeth)  
    (Part of 8S4373 Shaft Assem.)
15. 9F-6641 [4] SCREW  
16. 4B-3388 H [2] BOLT  
17. 3B-4505 H [2] LOCKWASHER  
18. 7S-2374 [1] GASKET  
19. 8S-4375 [1] CAGE ASSEM.  
20. 8F-6058 [1] BEARING  
21. 4S-7756 [2] SEAL  
    (Parts of 8S4375 Cage Assem.)
22. 3H-1489 [1] KEY  
  H   NOT PART OF 7S5445 TRANSFER PU
 

#UEG0797S0204
 

4N-4873: FUEL TRANSFER PUMP GROUP

4N4873 FUEL TRANSFER PUMP GROUP (7S5108 N/S)
Serial No. 78P2224-Up
Part of 2P6785 and 2P9561 Engine Arrangements
c145662 UEG0797S
4N4873 FUEL TRANSFER PUMP GROUP Parts scheme
  For full view, you need register

Parts for your 950 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2F-8616 [1] NUT  
2. 8H-9806 [1] GEAR (11 teeth)  
3. 6J-2419 [2] SEAL  
4. 7S-4439 [1] RING  
5. 7S-4434 [1] BODY ASSEM.  
    (Includes)
6. 8F-6058 [1] BEARING  
7. 2S-6838 [1] SHAFT  
8. 8S-4368 [1] GEAR (idler-10 teeth)  
9. 4N-4862 [1] COVER ASSEM.  
    (Includes)
10. 4N-4249 [1] SEAL  
11. 7S-4433 [2] FERRULE  
12. 7S-6701 [2] SCREW  
13. 4N-4870 [1] SHAFT ASSEM.  
    (Includes)
14. 8S-4368 [1] GEAR (idler-10 teeth)  
15. 9F-6641 [4] SCREW  
16. 4B-3388 H [2] BOLT  
17. 3B-4505 H [2] LOCKWASHER  
18. 7S-2374 [1] GASKET  
19. 4N-4865 [1] CAGE ASSEM.  
    (Includes)
20. 2S-7467 [1] BEARING  
21. 4N-4248 [2] SEAL  
22. 3H-1489 [1] KEY  
  H   NOT PART OF 4N4873 TRANSFER PU
 

#UEG0797S0205
 

2P-6859: FUEL TRANSFER PUMP GROUP

2P6859 FUEL TRANSFER PUMP GROUP
Serial No. 78P1 to 78P11062 inclusive
Part of 2P6784 Engine Arrangement
c200617 UEG0797S
2P6859 FUEL TRANSFER PUMP GROUP Parts scheme
  For full view, you need register

Parts for your 950 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 2B-2695 [2] BOLT  
2. 3B-4505 [4] LOCKWASHER  
3. 2P-6834 [1] COVER  
4. 2P-8722 C [1] GASKET  
5. 4B-3388 [2] BOLT  
6. 7S-2374 [1] GASKET  
7. 4N-4864 YC [1] PUMP GROUP  
    (Separate Illustration)
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0797S0206
 

4N-4864: PUMP GP-FUEL TRANSFER

4N4864 FUEL TRANSFER PUMP GROUP--Type 1
Serial No. 78P2573-Up
Part of 7S4429 and 2P6859 Fuel Transfer Pump Groups shown on Pages 135 and 137
c149959 UEG0797S
4N4864 PUMP GP-FUEL TRANSFER Parts scheme
  For full view, you need register

Parts for your 950 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9F-6641 [4] SCREW  
2. 4N-4863 [1] COVER ASSEM.  
3. 7S-4433 [2] FERRULE  
4. 7H-3171 [1] PLUG  
5. 4N-4249 [1] SEAL  
6. 7S-4434 [1] BODY ASSEM.  
7. 8F-6058 [1] BUSHING  
8. 4N-3944 [1] SHAFT  
9. 7S-2374 [1] GASKET  
10. 3H-1489 [1] KEY  
11. 2F-8616 [1] NUT  
12. 8H-9806 [1] GEAR (11 Teeth-Drive)  
13. 4N-4865 [1] CAGE ASSEM.  
14. 4N-4248 [2] SEAL  
15. 8F-6058 [1] BUSHING  
16. 7S-4439 [1] RING  
17. 6J-2419 [2] SEAL  
18. 8S-4368 [1] GEAR (10 Teeth-Idler)  
19. 7S-4440 [1] BOLT  
20. 7S-6701 [2] SCREW  
21. 4N-7465 [1] GASKET  
22. 4N-4870 [1] SHAFT ASSEM. (10 Teeth-Drive)  
23. 8M-0874 [1] PLUNGER ASSEM.  
24. 8M-3210 [1] SPRING  
 

#UEG0797S0207
 

4N-4864: PUMP GP-FUEL TRANSFER

4N4864 FUEL TRANSFER PUMP GROUP--Type 2
Serial No. 78P2573-Up
Part of 7S4429 and 2P6859 Fuel Transfer Pump Groups shown on Pages 135 & 137
c220887 UEG0797S
4N4864 PUMP GP-FUEL TRANSFER Parts scheme
  For full view, you need register

Parts for your 950 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9F-6641 [4] SCREW  
2. 7N-6379 C [1] COVER ASSEM.  
    (Includes)
3. 7S-4433 [2] FERRULE  
4. 4N-4249 [1] SEAL  
5. 3K-8460 C [1] PLUG  
  1J-9671 C [1] SEAL  
6. 7S-4434 [1] BODY ASSEM.  
    (Includes)
7. 8F-6058 [1] BUSHING  
8. [1] SHAFT  
9. 7S-2374 [1] GASKET  
10. 3H-1489 [1] KEY  
11. 2F-8616 [1] NUT  
12. 8H-9806 [1] GEAR (11 teeth drive)  
13. 4N-4865 [1] CAGE ASSEM.  
    (Includes)
14. 4N-4248 [2] SEAL  
15. 8F-6058 [1] BUSHING  
16. 7S-4439 [1] RING  
17. 6J-2419 [2] SEAL  
18. 8S-4368 [1] GEAR (10 teeth idler)  
19. 7S-4440 [1] BOLT  
20. 7S-6701 [2] SCREW  
21. 4N-7465 [1] GASKET  
22. 4N-4870 [1] SHAFT ASSEM. (10 teeth drive)  
23. 8M-0874 [1] PLUNGER ASSEM.  
24. 8M-3210 [1] SPRING  
  C   INDICATES CHANGE
 

#UEG0797S0208
 

7S-4430: FUEL TRANSFER PUMP GROUP

7S4430 FUEL TRANSFER PUMP GROUP
Serial No. 78P1 to 78P2572 inclusive
Part of 7S4429 Fuel Transfer Pump Group shown on Page 135
c136600 UEG0797S
7S4430 FUEL TRANSFER PUMP GROUP Parts scheme
  For full view, you need register

Parts for your 950 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9F-6641 [4] SCREW  
2. 8S-5581 [1] COVER ASSEM.  
3. 7S-4433 [2] FERRULE  
4. 7H-3171 [1] PLUG  
5. 8S-5575 [1] SEAL  
6. 7S-4434 [1] BODY ASSEM.  
7. 8F-6058 [1] BUSHING  
8. 2S-6838 [1] SHAFT  
9. 7S-2374 [1] GASKET  
10. 3H-1489 [1] KEY  
11. 2F-8616 [1] NUT  
12. 8H-9806 [1] GEAR (11 Teeth Drive)  
13. 8S-4375 [1] CAGE ASSEM.  
14. 4S-7756 [2] SEAL  
15. 8F-6058 [1] BUSHING  
16. 7S-4439 [1] RING  
17. 6J-2419 [2] SEAL  
18. 8S-4368 [1] GEAR (10 Teeth-Idler)  
19. 7S-4440 [1] BOLT  
20. 7S-6701 [2] SCREW  
21. 2A-1913 [1] GASKET  
22. 8S-4373 [1] SHAFT ASSEM. (10 Teeth Drive)  
23. 8M-0874 [1] PLUNGER ASSEM.  
24. 8M-3210 [1] SPRING  
 

#UEG0797S0209
 

1P-2299: FILTER AS-FUEL

1P2299 FUEL FILTER ASSEMBLY
Serial No. 78P9707-Up
Part of 4N3975 and 4N3976 Engine Arrangements
UEG0797S0209 UEG0797S
1P2299 FILTER AS-FUEL Parts scheme
  For full view, you need register

Parts for your 950 WHEEL LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
 

Information:

Truck Engine News
An Improved Hand Operated Fuel Priming Pump Is Available {1258}
2012/11/26
Engine News
An Improved Hand Operated Fuel Priming Pump Is Available {1258}
2012/10/08
Special Instruction
Installation Instructions for the Electric Fuel Priming Pump on Caterpillar Equipment With the 24 Volt System{1258}
Installation Instructions for the Electric Fuel Priming Pump on Caterpillar Equipment With the 24 Volt System{1258}
Specifications
Fuel Bypass Valve<BR> (Scroll Fuel System - PC)
3304 VEHICULAR ENGINE
Tool Operating Manual
Using the TMI System to Retrieve Off Engine Injection Pump Test Specifications for the Fuel Injection Equipment Test Stand{0706, 0782, 1251, 1286}
Using the TMI System to Retrieve Off Engine Injection Pump Test Specifications for the Fuel Injection Equipment Test Stand{0706, 0782, 1251, 1286}
Testing and Adjusting Fuel Injection Pump and Governor on 3064 and 3066 Engines{0374, 0599, 0706}
Testing and Adjusting Fuel Injection Pump and Governor on 3064 and 3066 Engines{0374, 0599, 0706}
Disassembly and Assembly
Glow Plugs, Fuel Priming Pump
3304 VEHICULAR ENGINE FOR 950 WHEEL LOADER
Fuel Filter Base And Filter
3304 VEHICULAR ENGINE FOR 950 WHEEL LOADER
Fuel Transfer Pump (Earlier)
3304 VEHICULAR ENGINE FOR 950 WHEEL LOADER
Fuel Transfer Pump (Later)
3304 VEHICULAR ENGINE FOR 950 WHEEL LOADER
Service Magazine
New Material Used For Disc In Valve Assemblies Of Fuel Transfer Pump Groups{1256}
1986/09/01
Improved Fuel Priming Pump Used{1258}
1987/04/20
Fuel Filter Base With Check Valve Prevents High Fuel Pressure After The Engine Is Stopped{1262}
1979/03/05
New Larger Capacity Water Separator Is Available{1250}
1979/03/12
Different Fuel Filter Available To Prevent Premature Wear On Fuel Injection Pump Plungers And Barrels{1261,1251}
1994/07/11
New Fuel Priming Pump And Improved Gasket Used{1258}
1994/08/22
Be Sure To Correctly Tighten 1R-0712, 1R-0740, 1R-0749, 1R-0750, 1R-0751, 1R-0753, And 1R-0759 Fuel Filter Assemblies {1261}
1998/01/26
New Caterpillar High Efficiency Fuel Filters With STAY CLEAN VALVES&reg; Replace All Standard Fuel Filters In February Of 1999 {1261}
1999/04/12
Special Instruction, REHS1037 , "Installation Instructions for the Electric Fuel Priming Pump on Caterpillar Equipment With the 24 Volt System" has been Revised {1258}
2004/03/29
An Improved Hand Operated Fuel Priming Pump Is Available {1258}
2012/10/04

Caterpillar Parts SIS Catalog 950 :

FUEL PRIMING PUMP
4N-7878 FUEL PRIMING PUMP
FUEL PRIMING PUMP
7S-1251 FUEL PRIMING PUMP
FUEL PRIMING PUMP
7S-1251 FUEL PRIMING PUMP
FUEL PRIMING PUMP
5S-2100 FUEL PRIMING PUMP
FUEL PRIMING PUMP
5S-2100 FUEL PRIMING PUMP
FUEL PRIMING PUMP
5S-2100 FUEL PRIMING PUMP
FUEL PRIMING PUMP GROUP
2P-7716 FUEL PRIMING PUMP GROUP
FUEL PRIMING PUMP GROUP
2P-7716 FUEL PRIMING PUMP GROUP
PUMP GP-FUEL TRANSFER
7S-4429 PUMP GP-FUEL TRANSFER
PUMP GP-FUEL TRANSFER
7S-4429 PUMP GP-FUEL TRANSFER
FUEL TRANSFER PUMP GROUP
7S-5445 FUEL TRANSFER PUMP GROUP
FUEL TRANSFER PUMP GROUP
4N-4873 FUEL TRANSFER PUMP GROUP
FUEL TRANSFER PUMP GROUP
2P-6859 FUEL TRANSFER PUMP GROUP
PUMP GP-FUEL TRANSFER
4N-4864 PUMP GP-FUEL TRANSFER
PUMP GP-FUEL TRANSFER
4N-4864 PUMP GP-FUEL TRANSFER
FUEL TRANSFER PUMP GROUP
7S-4430 FUEL TRANSFER PUMP GROUP

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