BASIC ENGINE
CYLINDER BLOCK GPCRANKSHAFT GP
DAMPER GP
CRANKSHAFT GP
DAMPER GP
CRANKSHAFT GP
BASIC ENGINE
CYLINDER BLOCK GP#UEG0634S0070
3N-2677: CYLINDER BLOCK & COVERS GP
3N2677 CYLINDER BLOCK AND COVERS GROUP--Front View - Part 2 of 2
Serial No. 68B7661-Up
Serial No. 68B7661-Up
Parts for your D379 INDUSTRIAL 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 | |||
#UEG0634S0071
4L-8791: CRANKSHAFT GP
4L8791 CRANKSHAFT GROUP--Type 1
Serial No. 68B2540 to 68B3213 and 68B3893 to 68B4397 inclusive
Refer also to Pages 134 & 134A for special parts
Serial No. 68B2540 to 68B3213 and 68B3893 to 68B4397 inclusive
Refer also to Pages 134 & 134A for special parts
Parts for your D379 INDUSTRIAL 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 | |||
#UEG0634S0072
4L-8791: CRANKSHAFT GP
4L8791 CRANKSHAFT GROUP-TYPE 2
Serial No. 68B2540 To 68B3213 & 68B3893 To 68B4397
And 68B6509 To 68B7892 Inclusive
Refer Also To Pages 134 And 134A For Special Parts
Serial No. 68B2540 To 68B3213 & 68B3893 To 68B4397
And 68B6509 To 68B7892 Inclusive
Refer Also To Pages 134 And 134A For Special Parts
Parts for your D379 INDUSTRIAL 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 | |||
#UEG0634S0073
4W-2574: CRANKSHAFT GP
4W2574 CRANKSHAFT GROUP
Serial No. 68B7893-Up
Serial No. 68B7893-Up
Parts for your D379 INDUSTRIAL 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 | |||
#UEG0634S0074
3N-7968: CRANKSHAFT GROUP
3N7968 CRANKSHAFT GROUP
Serial No. 68B3214 to 68B3892 and 68B4398 to 68B4863 inclusive
Refer also to Pages 134 & 134A for special parts
Serial No. 68B3214 to 68B3892 and 68B4398 to 68B4863 inclusive
Refer also to Pages 134 & 134A for special parts
Parts for your D379 INDUSTRIAL 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 | |||
#UEG0634S0075
3N-7968: CRANKSHAFT GROUP
3N7968 CRANKSHAFT GROUP
Serial No. 68B4864 to 68B6508 inclusive
Refer also to Pages 134 & 134A for special parts
Serial No. 68B4864 to 68B6508 inclusive
Refer also to Pages 134 & 134A for special parts
Parts for your D379 INDUSTRIAL 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 | |||
#UEG0634S0076
3N-9587: DAMPER GROUP
#UEG0634S0077
3N-8008: SEAL GP-CRANKSHAFT CONVERSION
3N8008 CRANKSHAFT CONVERSION SEAL GROUP--Field Installation
Parts for your D379 INDUSTRIAL 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 | |||
#UEG0634S0078
4W-2557: DAMPER GP
4W2557 DAMPER GROUP
Serial No. 68B7893-Up
Not For Use With Solid Ring Crankshaft Seal
For Locomotive Service. An Attachment
Serial No. 68B7893-Up
Not For Use With Solid Ring Crankshaft Seal
For Locomotive Service. An Attachment
#UEG0634S0079
4W-2571: SEAL GP-CRANKSHAFT CONVERSION
4W2571 CRANKSHAFT CONVERSION SEAL GROUP-REAR-OPPOSITE ROTATION
Field Installation
Field Installation
Parts for your D379 INDUSTRIAL ENGINE:
CATERPILLAR SISInformation:
BASIC ENGINE
CYLINDER BLOCK GP
Engine News
Correct Installation Of Inserts Necessary During Repairs To Prevent More Counterbore Cracks
1981/04/01
1981/04/01
Information Available For The Installation Of Inserts In Cylinder Blocks And Spacer Plates
1982/08/25
1982/08/25
New Sealant Used Between The Fuel Injection Pump/Governor Drive Housing And Cylinder Block
1983/02/16
1983/02/16
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}
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}
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}
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}
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}
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}
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}
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}
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}
Installation Of Engine Block, Support Rails And/Or Oil Pan Base Assembly{1154, 1201, 1302}
Using 5P4175 Boring Tool Group And 5P1618 Tool Arrangement{0672, 1200}
Using 5P4175 Boring Tool Group And 5P1618 Tool Arrangement{0672, 1200}
Using 5P4175 Boring Tool Group And 5P1618 Tool Arrangement{0672, 1200}
Specifications
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}
Reuse and Salvage for 3176, 3300, 3400 & C-Series Engine Cylinder Blocks {0670, 0672, 0761, 1201, 7225}
Disassembly and Assembly
Service Magazine
Some Nuts Used On Main Bearing Caps Are Smaller Than Standard Size Across The Flat Sides{1203}
1980/07/14
1980/07/14
New Main Bearings And Connecting Rod Bearings Have Thicker Layer Of Surface Material{1230,1203,1219}
1982/02/22
1982/02/22
Service Information For Easier Use Of The 6V3100 Timing Indicator Group{0651,1250,1156,1157}
1982/10/11
1982/10/11
New Sealant Used Between The Fuel Injection Pump/Governor Drive Housing And Cylinder Block{1288}
1983/01/17
1983/01/17
Additional Guidelines For Using The 8T2700 Blowby/Air Flow Indicator Group {0781,1200,1350}
1987/07/20
1987/07/20


