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3N2677 CYLINDER BLOCK AND COVERS GROUP--Front View--Part 1 of 2 Serial No. 69B2145-Up D379A MARINE ENGINE




BASIC ENGINE

CYLINDER BLOCK GP
 

#UEG0647S0080
 

3N-2677: CYLINDER BLOCK & COVERS GP

3N2677 CYLINDER BLOCK AND COVERS GROUP--Front View--Part 1 of 2
Serial No. 69B2145-Up
c182792 UEG0647S
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Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  1A-1135 [4] BOLT  
  2A-4462 [2] LOCK  
  8N-4708 [8] BAND  
  8L-4857 [4] COVER  
  1F-4419 [4] GASKET  
  0S-0509 [42] BOLT  
    19.05 mm(.75 in.) long
  3B-4506 [42] LOCKWASHER  
  6L-7815 [24] SEAL  
  8N-9174 [8] LINER  
  1A-9759 [8] DOWEL  
  2N-4518 [1] PLATE ASSEM.  
  2N-4516 [1] ADAPTER  
    (PART OF 2N4518 ASSEM.)
  8F-8145 [1] FLANGE  
  1F-3131 [1] GASKET  
  1B-5174 [1] PLUG  
  0S-1588 [2] BOLT  
  3B-4506 [2] LOCKWASHER  
  1F-4418 [3] COVER  
  1F-9223 [3] GASKET  
  5F-0304 [1] PLUG  
  5B-8932 [1] GASKET  
  0S-0509 CH [3] BOLT  
  3B-4506 CH [3] LOCKWASHER  
  0S-0509 C [60] BOLT  
  3B-4506 C [60] LOCKWASHER  
  6L-2787 [1] HOUSING  
    (FLYWHEEL)
  C   INDICATES CHANGE
  H   USE AS REQUIRED
 

#UEG0647S0081
 

3N-2677: CYLINDER BLOCK & COVERS GP

3N2677 CYLINDER BLOCK AND COVERS GROUP--Side View--Part 2 of 2
Serial No. 69B2145-Up
c182791 UEG0647S
  For full view, you need register

Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  4L-6788 [64] STUD  
  5L-2894 [5] BEARING  
    (Parts of 3N6988 & 3N6990 Assem.)
  9S-1366 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
  5N-3275 [1] GASKET  
  0L-1351 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
  5F-9303 [2] COVER  
  1F-3131 [2] GASKET  
  3B-0551 [2] PLUG  
  1A-0168 [6] BOLT  
  3B-4508 [6] LOCKWASHER  
  9M-7269 [2] BOLT  
  3B-4508 [2] LOCKWASHER  
  4F-2609 [1] DOWEL  
  7L-2593 [1] SHAFT ASSEM  
  3F-6795 [1] PIN  
  0L-2061 [2] DOWEL (875" LONG)  
  2B-2994 [2] DOWEL (150" LONG)  
    (Parts of 3N6988 & 3N6990 Assem.)
  7F-7669 [1] GASKET  
  7F-7670 [1] COVER  
  0L-1351 [4] BOLT  
  4L-4653 [2] PLATE  
  1A-8537 [8] BOLT  
  3B-4510 [14] LOCKWASHER  
  8S-9092 [6] BOLT  
  2N-7193 [2] CAP  
  1A-9759 [8] DOWEL  
    (Parts of 3N6988 & 3N6990 Assem.)
  1F-4418 [1] COVER  
  1F-9223 [1] GASKET  
  2A-3348 [1] DOWEL  
  1A-2223 [16] DOWEL (1" LONG)  
  6B-6863 C [4] DOWEL (50" LONG)  
    (Parts of 3N6988 & 3N6990 Assem.)
  2N-5120 [10] STUD  
  3S-1356 [10] NUT  
    (Parts of 3N6988 & 3N6990 Assem.)
  2N-7194 [3] CAP  
    (Part of 3N6988 & 3N6990 Assem.)
  3N-6988 [1] BLOCK ASSEM.  
    (For Use With Compression Release)
    -OR-
  3N-6990 [1] BLOCK ASSEM.  
    (For Use Without Compression Release)
  5H-4279 [4] PLUG  
  1H-8645 [2] SCREW  
  2A-3278 [2] GASKET  
    (PARTS OF 3N6988 ASSEM.)
  4L-7586 [1] GASKET  
  5M-6213 [2] PLUG  
    (Part of 3N6988 & 3N6990 Assem.)
  4L-3395 [2] DOWEL  
  7L-2593 [1] SHAFT ASSEM.  
  7F-9504 [2] DOWEL  
  4F-2609 [1] PIN (437" LONG)  
  3F-6795 [1] PIN  
    (Parts of 3N6988 & 3N6990 Assem.)
 

#UEG0647S0082
 

4L-8791: CRANKSHAFT GP

4L8791 CRANKSHAFT GROUP--TYPE 1
Serial No. 69B1227 To 69B1662 And 69B1883 To 69B1918
And 69B2076 To 69B2152 inclusive
c137414 UEG0647S
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Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  0S-1594 [24] BOLT  
  3B-4506 [24] LOCKWASHER  
  7L-2534 [2] RING  
  5L-7856 [1] THROWER  
  2N-7048 [5] BEARING (STANDARD)  
  5L-4184 [5] BEARING (050" UNDERSIZE)  
  5L-2093 [2] GASKET  
  8L-3972 [2] BAFFLE  
  8L-9802 [8] PLUG  
    (PART OF 5L6286 ASSEM.)
  8L-9835 [8] RING (SNAP)  
  0L-1024 [8] PLUG  
    (PART OF CRANKSHAFT ASSEM. 5L6286)
  5L-6286 [1] CRANKSHAFT ASSEM.  
  5L-1857 [1] ADAPTER  
  3N-3234 C [2] RING  
  5L-7858 [1] THROWER  
  6F-7035 [10] BOLT  
  3B-4514 [10] LOCKWASHER  
  C   INDICATES CHANGE
 

#UEG0647S0083
 

4L-8791: CRANKSHAFT GP

4L8791 CRANKSHAFT GROUP--TYPE 2
Serial No. 69B1227 To 69B1662 And 69B1883 To 69B1918 And
69B2076 To 69B2152 inclusive
c229870 UEG0647S
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Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8L-3972 [2] BAFFLE  
2. 3N-3234 [2] RING  
3. 3N-9160 C [2] RING  
4. 3N-7326 C [1] THROWER  
5. 8N-7764 C [5] BEARING (Standard)  
  8N-7765 AB BEARING-MAIN (0.63-U.S.)  
  8N-7766 AB BEARING-MAIN (1.27-U.S.)  
  8N-7767 AB BEARING-MAIN (0.63-O.S.)  
  8N-7768 AB BEARING-MAIN (0.63-U.S.-0.63-O.S.)  
  2N-7117 C [5] BEARING (.050" Undersize)  
6. 3N-2957 RC [1] CRANKSHAFT ASSEM.  
    (Includes)
7. 5P-3476 [4] BOLT  
8. 7B-0537 [8] DOWEL  
9. 5L-2683 [8] BOLT  
10. 3N-7327 C [1] THROWER  
11. 5L-1857 [1] ADAPTER  
12. 6F-7035 [10] BOLT  
  3B-4514 [10] LOCKWASHER  
13. 0S-1594 [24] BOLT  
  3B-4506 [24] LOCKWASHER  
14. 5L-2093 [2] GASKET  
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0647S0084
 

4W-2574: CRANKSHAFT GP

4W2574 CRANKSHAFT GROUP
Serial No. 69B2153-Up
c318374 UEG0647S
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Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4W-2567 [1] ADAPTER-SEAL  
2. 4W-2607 [1] SEAL GP-CRANKSHAFT  
3. 4W-2566 [1] ADAPTER-SEAL  
4. 4W-2606 [1] SEAL GP-CRANKSHAFT  
5. 8N-7764 [5] BEARING-MAIN (STANDARD)  
  8N-7765 AB BEARING-MAIN (0.63-U.S.)  
  8N-7766 AB BEARING-MAIN (1.27-U.S.)  
  8N-7767 AB BEARING-MAIN (0.63-O.S.)  
  8N-7768 AB BEARING-MAIN (0.63-U.S.-0.63-O.S.)  
  2N-7117 [5] BEARING 1.27MM(.05IN)U.S.  
6. 3N-2957 R [1] CRANKSHAFT AS  
  5L-2662 [4] COUNTERWEIGHT  
7. 5P-3476 [4] BOLT-SOCKET HEAD  
8. 7B-0537 [8] DOWEL  
9. 5L-2683 [8] BOLT  
10. 5L-2093 [2] GASKET  
11. 3N-7821 [1] ADAPTER  
12. 6F-7035 [10] BOLT  
13. 0S-1594 [24] BOLT  
  [1] FORM  
    INSTALLATION OF
    CRANKSHAFT SEAL)
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0647S0085
 

3N-7968: CRANKSHAFT GROUP

3N7968 CRANKSHAFT GROUP
Serial No. 69B1663 to 69B1882 and 69B1919 to 69B1964 inclusive
c153176 UEG0647S
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Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3N-3168 [1] ADAPTER  
2. 3N-3166 [2] SEAL  
3. 3N-7311 [2] SLEEVE  
  3N-8049 [1] LOCKTITE KIT  
4. 7D-1979 [2] SEAL  
5. 2N-7048 [5] BEARING  
6. 3N-2957 R [1] CRANKSHAFT ASSEM.  
    (Includes)
7. 5P-3476 [4] BOLT  
8. 7B-0537 [8] DOWEL  
9. 5L-2683 [8] BOLT  
10. 3N-3170 [1] ADAPTER  
11. 1A-9579 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  3N-3333 [8] SPACER  
12. 3N-7821 [1] ADAPTER  
13. 6F-7035 [10] BOLT  
  3B-4514 [10] LOCKWASHER  
14. 0S-1594 [24] BOLT  
  3B-4506 [24] LOCKWASHER  
15. 5L-2093 [2] GASKET  
16. 6K-4936 [8] BOLT  
  3F-1417 [8] WASHER  
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0647S0086
 

3N-7968: CRANKSHAFT GROUP

3N7968 CRANKSHAFT GROUP
Serial No. 69B1965 to 69B2075 inclusive
c220631 UEG0647S
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Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8L-3972 C [1] BAFFLE  
2. 3N-3166 C [1] SEAL  
3. 3N-7311 C [1] SLEEVE  
  3N-8049 [1] LOCKTITE KIT  
4. 7D-1979 C [1] SEAL  
5. 2N-7048 [5] BEARING  
6. 3N-2957 R [1] CRANKSHAFT ASSEM.  
    (Includes)
7. 5P-3476 [4] BOLT  
8. 7B-0537 [8] DOWEL  
9. 5L-2683 [8] BOLT  
10. 3N-3170 [1] ADAPTER  
11. 1A-9579 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  3N-3333 [8] SPACER  
12. 3N-7821 [1] ADAPTER  
13. 6F-7035 [10] BOLT  
  3B-4514 [10] LOCKWASHER  
14. 0S-1594 [24] BOLT  
  3B-4506 [24] LOCKWASHER  
15. 5L-2093 [2] GASKET  
16. 3N-3234 C [1] RING  
17. 3N-9160 C [1] RING  
18. 3N-7326 C [1] THROWER  
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#UEG0647S0087
 

3N-8008: SEAL GP-CRANKSHAFT CONVERSION

3N8008 CRANKSHAFT CONVERSION SEAL GROUP--Front
Serial No. 69B1227 to 69B1662 inclusive
FIELD INSTALLATION
c152603 UEG0647S
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Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5L-2093 [1] GASKET  
2. 3N-3170 [1] ADAPTER  
3. 3N-7821 H [1] ADAPTER  
    (Use with 5L1857 Adapter)
  3N-7822 H [1] ADAPTER  
    (Use with 4L8819 Adapter)
  3N-7823 H [1] ADAPTER  
    (Use with 7L2571 Adapter)
4. 1A-9579 [8] BOLT  
  3B-4505 [8] LOCKWASHER  
  3N-3333 [8] SPACER  
5. 7D-1979 [1] SEAL  
6. 3N-7311 [1] SLEEVE  
7. 3N-3166 [1] SEAL  
8. 8S-4754 J [4] BOLT .875 in.(2.22 cm) diameter  
  8S-4755 [4] BOLT 1 in.(2.54 cm) diameter  
    (Use as Required)
9. 5P-3022 J [1] INSTALLER  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  3N-8049 [1] LOCTITE KIT (service)  
  H   NOT PART OF 3N8008 SEAL GROUP
  J   USE TO INSTALL WEAR SLEEVE
 

#UEG0647S0088
 

3N-8000: SEAL GP-CRANKSHAFT CONVERSION

3N8000 CRANKSHAFT CONVERSION SEAL GROUP--Rear
FIELD INSTALLATION
c174549 UEG0647S
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Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5L-2093 [1] GASKET  
2. 3N-3168 [1] ADAPTER  
3. 6K-4936 [8] BOLT  
  3F-1417 [8] WASHER  
4. 7D-1979 [1] SEAL  
5. 3N-7311 [1] SLEEVE  
6. 3N-3166 [1] SEAL  
7. 5P-3022 H [1] INSTALLER  
8. 8S-4754 H [1] BOLT .875 in. (2.22 cm) diameter  
  8S-4755 H [1] BOLT 1 in. (2.54 cm) diameter  
    (Use as required)
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  3N-8049 [1] LOCTITE KIT (service)  
  H   USED TO INSTALL WEAR SLEEVE
 

#UEG0647S0089
 

4W-2571: SEAL GP-CRANKSHAFT CONVERSION

4W2571 CRANKSHAFT CONVERSION SEAL GP-REAR-OPPOSITE ROTATION
Field Installation
c331741 UEG0647S
  For full view, you need register

Parts for your D379A MARINE ENGINE:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4W-2567 [1] ADAPTER-SEAL  
2. 5L-2093 [1] GASKET  
3. 4W-2606 [1] SEAL GP-CRANKSHAFT  
 

Information:

Engine News
Special Instruction
Pressure Lubrication Procedure for Remanufactured Engines and Short Blocks{1000, 1200, 1020}
Pressure Lubrication Procedure for Remanufactured Engines and Short Blocks{1000, 1200, 1020}
Installation Of 1W6265, 1W6266 And 1W6267 Insert For Cylinder Liner Seat{1217}
Installation Of 1W6265, 1W6266 And 1W6267 Insert For Cylinder Liner Seat{1217}
Use Of 5P8709 Tool Group For Alignment Of Piston Cooling Jets{1331}
Use Of 5P8709 Tool Group For Alignment Of Piston Cooling Jets{1331}
Installation Of Crankshaft Seals And Wear Sleeves{1203}
Installation Of Crankshaft Seals And Wear Sleeves{1203}
Use Of 1P4000 Line Boring Tool Group{0672, 1201, 1203}
Use Of 1P4000 Line Boring Tool Group{0672, 1201, 1203}
Installing Heli-Coil Inserts In Caterpillar Cylinder Heads{1117}
Installing Heli-Coil Inserts In Caterpillar Cylinder Heads{1117}
Pressure Lubrication Procedure For Remanufactured Engines And Short Blocks{1000, 1201}
Pressure Lubrication Procedure For Remanufactured Engines And Short Blocks{1000, 1201}
Use Of 6V4840 Tool Group To Install Water Ferrules{1201}
Use Of 6V4840 Tool Group To Install Water Ferrules{1201}
Installation Of Engine Block, Support Rails And/Or Oil Pan Base Assembly{1154, 1201, 1302}
Installation Of Engine Block, Support Rails And/Or Oil Pan Base Assembly{1154, 1201, 1302}
Cylinder Block Cleaning Procedure{1201}
Cylinder Block Cleaning Procedure{1201}
Using 5P4175 Boring Tool Group And 5P1618 Tool Arrangement{0672, 1200}
Using 5P4175 Boring Tool Group And 5P1618 Tool Arrangement{0672, 1200}
Specifications
Cylinder Block
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Cylinder Liner
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Cylinder Liner Projection
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Main Bearings
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Bearing Surface (Journal) For Main Bearings
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Reuse And Salvage Guidelines
Reuse and Salvage for 3176, 3300, 3400 & C-Series Engine Cylinder Blocks {0670, 0672, 0761, 1201, 7225}
Reuse and Salvage for 3176, 3300, 3400 & C-Series Engine Cylinder Blocks {0670, 0672, 0761, 1201, 7225}
Disassembly and Assembly
Crankshaft Main Bearings
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Piston Cooling Tubes
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Cylinder Liners
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Camshaft Bearings
D379, D398, D399 INDUSTRIAL & MARINE ENGINES
Service Magazine

Caterpillar Parts SIS Catalog D379A :

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