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3N4520 SUMP PUMP GROUP--Type 2 Serial No. 69B1281-Up 2N8908 Sump Pump and 1N9924 Valve parts are shown on Page 52 FOR USE WITH SHORT RAILED PROPULSION ENGINE D379A


LUBRICATION SYSTEM
PUMP GP-SUMP
COOLING SYSTEM
HEAT EXCHANGER GP

MARINE ENGINE D379A MARINE ENGINE 69B
 D379B MARINE ENGINE 69B01227-UP UEG0647S D379A 69B   (1961)

LUBRICATION SYSTEM

PUMP GP-SUMP
SUMP PUMP GROUP
1N-9074 SUMP PUMP GROUP
PUMP GP-SUMP
3N-4520 PUMP GP-SUMP
PUMP GP-SUMP
3N-4520 PUMP GP-SUMP
SUMP PUMP GROUP
3N-4521 SUMP PUMP GROUP
SUMP PUMP GROUP
3N-4521 SUMP PUMP GROUP
OIL SUMP PUMP GROUP
3N-2643 OIL SUMP PUMP GROUP
 

#UEG0647S0470
 

3N-4520: PUMP GP-SUMP

3N4520 SUMP PUMP GROUP--Type 2
Serial No. 69B1281-Up
2N8908 Sump Pump and 1N9924 Valve parts are shown on Page 52
FOR USE WITH SHORT RAILED PROPULSION ENGINE
c143220 UEG0647S
3N4520 PUMP GP-SUMP Parts scheme
  For full view, you need register

Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-4512 [1] HOSE ASSEM.  
2. 3B-6554 C [5] ELBOW  
3. 3M-7045 [1] PLUG  
4. 2D-2460 C [1] NIPPLE  
5. 0T-0386 [1] CLIP  
    (Use with L.H. Mounting)
6. 0S-1620 [1] BOLT  
7. 3B-4508 [3] LOCKWASHER  
8. 5F-6371 [2] UNION  
9. 0S-1621 [2] BOLT  
10. 3B-7270 [2] NIPPLE  
11. 1L-8444 [1] TEE  
12. 2N-9335 [1] BRACKET ASSEM.  
13. 9B-4202 [2] COCK  
14. 4B-5984 [1] ELBOW  
15. 2N-8908 Y [1] PUMP GROUP  
    (Separate Illustration)
16. 3N-4509 [1] HOSE ASSEM.  
    (Use with R.H. Mounting)
  3N-4515 [1] HOSE ASSEM.  
    (Use with L.H. Mounting)
17. 3N-7057 C [1] VALVE ASSEM.  
  3D-2992 [1] SEAL (1.049 inside dia.)  
  9H-6761 [1] SEAL (.862 inside dia.)  
18. 1B-5174 C [1] PLUG  
19. 1F-6660 C [1] NIPPLE  
20. 1N-9924 Y [1] VALVE ASSEM.  
    (Separate Illustration)
21. 6B-9081 [1] BUSHING  
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0647S0471
 

3N-4521: SUMP PUMP GROUP

3N4521 SUMP PUMP GROUP--Type 1
Serial No. 69B1281-Up
2N8908 Sump Pump and 1N9924 Check Valve parts are shown on Page 52
FOR USE WITH SHORT RAILED AUXILIARY ENGINE
c142040 UEG0647S
3N4521 SUMP PUMP GROUP Parts scheme
  For full view, you need register

Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-4511 [1] HOSE ASSEM.  
2. 3B-6554 [3] ELBOW  
3. 3N-4494 [1] PLATE  
4. 1D-4609 [3] BOLT  
5. 0T-0386 [1] CLIP  
    (Use with L.H. Mounting)
6. 0S-1620 [1] BOLT  
7. 3B-4508 [3] LOCKWASHER  
8. 5F-6371 [2] UNION  
9. 0S-1621 [2] BOLT  
10. 3B-4512 [3] LOCKWASHER  
11. 6B-9081 [1] BUSHING  
12. 2N-9335 [1] BRACKET ASSEM.  
13. 3B-6555 [1] ELBOW  
14. 4B-5984 [1] ELBOW  
15. 2N-8908 Y [1] PUMP GROUP  
    (Separate Illustration)
16. 3N-4510 [1] HOSE ASSEM.  
    (Use with R.H. Mounting)
  3N-4514 [1] HOSE ASSEM.  
    (Use with L. H. Mounting)
17. 9B-1008 [1] COCK  
18. 3B-0551 [1] PLUG  
19. 3B-7280 [1] NIPPLE  
20. 1N-9924 Y [1] VALVE ASSEM.  
    (Separate Illustration)
  Y   SEPARATE ILLUSTRATION
 

#UEG0647S0472
 

3N-4521: SUMP PUMP GROUP

3N4521 SUMP PUMP GROUP--Type 2
Serial No. 69B1281-Up
2N8908 Sump Pump and 1N9924 Check Valve parts are shown on Page 52
FOR USE WITH SHORT RAILED AUXILIARY ENGINE
c143226 UEG0647S
3N4521 SUMP PUMP GROUP Parts scheme
  For full view, you need register

Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-4511 [1] HOSE ASSEM.  
2. 3B-6554 C [4] ELBOW  
3. 3N-4494 [1] PLATE  
4. 1D-4609 [3] BOLT  
5. 0T-0386 [1] CLIP  
    (Use with L.H. Mounting)
6. 0S-1620 [1] BOLT  
7. 3B-4508 [3] LOCKWASHER  
8. 5F-6371 [2] UNION  
9. 0S-1621 [2] BOLT  
10. 3B-4512 [3] LOCKWASHER  
11. 6B-9081 [1] BUSHING  
12. 2N-9335 [1] BRACKET ASSEM.  
13. 1F-6660 C [1] NIPPLE  
14. 4B-5984 [1] ELBOW  
15. 2N-8908 Y [1] PUMP GROUP  
    (Separate Illustration)
16. 3N-4510 [1] HOSE ASSEM.  
    (Use with R.H. Mounting)
  3N-4514 [1] HOSE ASSEM.  
    (Use with L.H. Mounting)
17. 3N-7057 C [1] VALVE ASSEM.  
  3D-2992 [1] SEAL (1.049 inside dia.)  
  9H-6761 [1] SEAL (.862 inside dia.)  
18. 1B-5174 C [1] PLUG  
19. 1N-9924 Y [1] VALVE ASSEM.  
    (Separate Illustration)
  C   INDICATES CHANGE
  Y   SEPARATE ILLUSTRATION
 

#UEG0647S0473
 

7L-0489: HEAT EXCHANGER GP

7L489 HEAT EXCHANGER ASSEMBLY
Provides Admiralty tubing
c123869 UEG0647S
7L0489 HEAT EXCHANGER GP Parts scheme
  For full view, you need register

Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [1] BONNET  
2. [24] BOLT  
  [24] LOCKWASHER  
3. [1] SEAL  
4. [2] BRACKET ASSEM.  
5. [1] CORE ASSEM. (30" long)  
6. [1] SHELL ASSEM.  
7. [2] GASKET  
8. [2] PLUG (Brass)  
  [2] ROD (Zinc)  
9. [1] BONNET  
10. [2] PLUG (Brass)  
11. [1] PIN  
12. [4] PLUG (Brass)  
 

#UEG0647S0474
 

7L-0491: HEAT EXCHANGER GP

7L491 HEAT EXCHANGER ASSEMBLY
Provides Admiralty tubing
c123870 UEG0647S
7L0491 HEAT EXCHANGER GP Parts scheme
  For full view, you need register

Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [1] BONNET  
2. [24] BOLT  
  [24] LOCKWASHER  
3. [1] SEAL  
4. [2] BRACKET ASSEM.  
5. [1] CORE ASSEM. (40" long)  
6. [1] SHELL ASSEM.  
7. [2] GASKET  
8. [2] PLUG (Brass)  
  [2] ROD (Zinc)  
9. [1] BONNET  
10. [2] PLUG (Brass)  
11. [1] PIN  
12. [4] PLUG (Brass)  
 

#UEG0647S0475
 

8L-5340: HEAT EXCHANGER GP

8L5340 HEAT EXCHANGER ASSEMBLY--Replaced by 3N8991
Provides copper-nickel tubing
c123871 UEG0647S
8L5340 HEAT EXCHANGER GP Parts scheme
  For full view, you need register

Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [1] BONNET  
2. [24] BOLT  
  [24] LOCKWASHER  
3. [1] SEAL  
4. [2] BRACKET ASSEM.  
5. [1] CORE ASSEM. (30" long)  
6. [1] SHELL ASSEM.  
7. [2] GASKET  
8. [2] PLUG (Brass)  
  [2] ROD (Zinc)  
9. [1] BONNET  
10. [2] PLUG (Brass)  
11. [1] PIN  
12. [4] PLUG (Brass)  
 

#UEG0647S0476
 

8L-5342: HEAT EXCHANGER GP

8L5342 HEAT EXCHANGER ASSEMBLY--Replaced by 3N8993
Provides copper-nickel tubing
c123872 UEG0647S
8L5342 HEAT EXCHANGER GP Parts scheme
  For full view, you need register

Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [1] BONNET  
2. [24] BOLT  
  [24] LOCKWASHER  
3. [1] SEAL  
4. [2] BRACKET ASSEM.  
5. [1] CORE ASSEM. (40" long)  
6. [1] SHELL ASSEM.  
7. [2] GASKET  
8. [2] PLUG (Brass)  
  [2] ROD (Zinc)  
9. [1] BONNET  
10. [2] PLUG (Brass)  
11. [1] PIN  
12. [4] PLUG (Brass)  
 

#UEG0647S0477
 

3N-8991: HEAT EXCHANGER GP

3N8991 HEAT EXCHANGER GROUP--Sea Water
c156557 UEG0647S
3N8991 HEAT EXCHANGER GP Parts scheme
  For full view, you need register

Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1A-2029 [8] BOLT  
2. 3B-4506 [16] LOCKWASHER  
3. 4N-9720 [2] FLANGE  
4. 4L-3862 [4] GASKET  
5. 3N-8990 Y [1] HEAT EXCHANGER GROUP  
    (Separate Illustration)
6. 0S-1571 [8] BOLT  
  1D-4717 [8] NUT  
  4B-4278 [16] WASHER  
7. 2N-7601 [2] FLANGE  
  Y   SEPARATE ILLUSTRATION
 

#UEG0647S0478
 

3N-8993: HEAT EXCHANGER GP

3N8993 HEAT EXCHANGER GROUP--Sea Water
c156559 UEG0647S
3N8993 HEAT EXCHANGER GP Parts scheme
  For full view, you need register

Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1588 [8] BOLT  
2. 3B-4506 [16] LOCKWASHER  
3. 4N-9720 [2] FLANGE  
4. 4L-3862 [4] GASKET  
5. 3N-8992 Y [1] HEAT EXCHANGER GROUP  
    (Separate Illustration)
6. 0S-1571 [8] BOLT  
  1D-4717 [8] NUT  
  4B-4278 [16] WASHER  
7. 2N-7601 [2] FLANGE  
  Y   SEPARATE ILLUSTRATION
 

#UEG0647S0479
 

3N-8889: HEAT EXCHANGER GP

3N8889 HEAT EXCHANGER GROUP--Sea Water
3N8888 Heat Exchanger parts are shown on Page 88D
AN ATTACHMENT
c207088 UEG0647S
3N8889 HEAT EXCHANGER GP Parts scheme
  For full view, you need register

Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-9720 [2] FLANGE  
2. 0S-1588 [8] BOLT  
3. 3B-4506 [16] LOCKWASHER  
4. 4L-3862 [2] GASKET  
5. 0S-1571 [8] BOLT  
  1D-4717 [8] NUT  
  4B-4278 [16] WASHER  
7. 2N-8263 [2] FLANGE  
6. 9M-1289 [2] GASKET  
8. 3N-8888 Y [1] EXCHANGER GROUP  
    (Separate Illustration)
  Y   SEPARATE ILLUSTRATION
 

Information:

Disassembly and Assembly
Sump Pump
D379, D398, D399 INDUSTRIAL & MARINE ENGINES

Caterpillar Parts SIS Catalog D379A :

PUMP GP-SUMP
3N-4520 PUMP GP-SUMP
SUMP PUMP GROUP
1N-9074 SUMP PUMP GROUP
PUMP GP-AUXILIARY
5N-2600 PUMP GP-AUXILIARY
PUMP GP-AUXILIARY
5N-7011 PUMP GP-AUXILIARY
PUMP GP-AUXILIARY
5N-7010 PUMP GP-AUXILIARY
PUMP GP-AUXILIARY
5N-7009 PUMP GP-AUXILIARY
PUMP GP-AUXILIARY
5N-7008 PUMP GP-AUXILIARY
PUMP GP-AUXILIARY
3N-4305 PUMP GP-AUXILIARY
SUMP PUMP GROUP
3N-4521 SUMP PUMP GROUP
SUMP PUMP GROUP
3N-4521 SUMP PUMP GROUP
HEAT EXCHANGER GP
7L-0489 HEAT EXCHANGER GP
HEAT EXCHANGER GP
7L-0491 HEAT EXCHANGER GP
HEAT EXCHANGER GP
8L-5340 HEAT EXCHANGER GP
HEAT EXCHANGER GP
8L-5342 HEAT EXCHANGER GP
HEAT EXCHANGER GP
3N-8991 HEAT EXCHANGER GP
HEAT EXCHANGER GP
3N-8993 HEAT EXCHANGER GP

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