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1W7145 AIR COMPRESSOR GROUP*R S/N 12Y1-271 PART OF 6N7628 COMPRESSOR 621R WHEEL TRACTOR


BASIC ENGINE
AIR COMPRESSOR GP
AIR INLET AND EXHAUST SYSTEM
TURBOCHARGER GP
MANIFOLD GP-EXHAUST
MUFFLER GP

WHEEL TRACTOR 621R WHEEL TRACTOR 12Y
 621R TRACTOR / POWER SHIFT / 12Y00001-UP (MACHINE) POWERED BY 3306 ENGINE ZEBP1298 621R 12Y   (1980)

BASIC ENGINE

AIR COMPRESSOR GP
AIR COMPRESSOR GP
7N-5642 AIR COMPRESSOR GP
AIR COMPRESSOR GP
6N-7582 AIR COMPRESSOR GP
AIR COMPRESSOR GP
1W-7145 AIR COMPRESSOR GP
AIR COMPRESSOR GP
1W-7146 AIR COMPRESSOR GP
AIR COMPRESSOR GP
2Y-9941 AIR COMPRESSOR GP
AIR COMPRESSOR GP
2Y-8685 AIR COMPRESSOR GP
 

#ZEBP12980090
 

1W-7145: AIR COMPRESSOR GP

1W7145 AIR COMPRESSOR GROUP*R
S/N 12Y1-271
PART OF 6N7628 COMPRESSOR
c236619 ZEBP1298
1W7145 AIR COMPRESSOR GP Parts scheme
  For full view, you need register

Parts for your 621R WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 6N-2097 [1] HEAD AS-COMPRESSOR  
2. 3J-5389 [2] PLUG  
3. 6N-2098 [1] GASKET-HEAD  
4. 9M-0397 [1] ADAPTER-INLET  
  8M-7065 [1] GASKET-AIR INLET  
5. 2B-2695 [2] BOLT  
  3B-4505 [2] LOCKWASHER  
6. 2B-0858 [1] PLUG-PIPE  
7. 7N-4837 [2] PISTON AS-COMPRESSOR  
  1W-2803 [2] PLUG  
8. 5P-0060 B [4] BOLT  
9. 5M-6214 [1] PLUG-PIPE  
10. 6N-2100 [1] COVER AS-REAR  
11. 6N-2106 [2] ROD AS-CONNECTION  
12. 7N-0243 [2] LOCK-ROD BOLT  
13. 6N-7564 [1] CRANKSHAFT-COMPRESSOR  
14. 3B-4507 [4] LOCKWASHER  
15. 8N-7653 [1] CRANKCASE AS  
16. 9M-0381 [2] SEAT-INLET VALVE  
17. 7N-6172 [2] BUSHING-COMPRESSOR  
18. 6N-6949 [1] COVER-CRANKCASE  
  6N-0634 [1] GASKET-COVER  
19. 5M-6509 [2] SEAL-O-RING  
20. 0S-1619 [6] BOLT  
21. 0T-0102 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
22. 1W-7119 [1] ADAPTER AS  
23. 0T-0768 [4] BOLT  
   
    THE FOLLOWING REPAIR
    KITS ARE AVAILABLE:
  8N-3666 [1] KIT-AIR COMPRESSOR (INCL PISTONS, GUIDE,  
    PLUNGER, SEAT, SPRING,
    SADDLE, RINGS, BOLTS,
    LOCKWASHERS, WASHERS,
    LOCK, ETC)
  6N-2109 [1] KIT-PISTON RINGS  
  8N-3665 [1] KIT-O-RING SEAL  
  B   USE AS REQUIRED
 

#ZEBP12980091
 

1W-7146: AIR COMPRESSOR GP

1W7146 AIR COMPRESSOR GP
S/N 12Y272-349
PART OF 7N5642 AIR COMPRESSOR
c495451 ZEBP1298
1W7146 AIR COMPRESSOR GP Parts scheme
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Parts for your 621R WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-7448 [1] GASKET-AIR COMPRESSOR  
2. 7N-7447 [1] HEAD AS-COMPRESSOR  
3. 0S-1619 [5] BOLT  
4. 7N-7449 [1] ADAPTER  
  1S-7107 [1] GASKET  
5. 0L-1352 [1] BOLT  
  5M-2894 [1] WASHER  
6. 2B-2695 [2] BOLT  
7. 3B-4505 [8] LOCKWASHER  
8. 7N-7450 [1] COVER-UNLOADER  
  7N-7451 [1] GASKET-UNLOADER  
9. 0S-1615 [2] BOLT  
  5P-0537 [2] WASHER  
10. 2B-0858 C [2] PLUG-PIPE  
11. 7N-7441 [1] COVER-AIR COMPRESSOR  
  7N-7442 [1] GASKET-AIR COMPRESSOR  
12. 9F-2247 [1] PLUG  
13. 034-4160 [4] BOLT-SELF LOCKING  
14. 7N-7444 [2] ROD AS-AIR COMPRESSOR  
15. 0S-1617 [6] BOLT  
16. 7N-7439 [1] PLATE-COVER  
  7N-7440 [1] GASKET-AIR COMPRESSOR  
17. 8H-9789 [2] BALL BEARING  
18. 7N-7438 [1] CRANKSHAFT-COMPRESSOR  
19. 7N-7443 [2] PISTON AS-COMPRESSOR  
   
20. 1A-2029 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
21. 4B-4845 [1] PLUG  
22. 7N-7445 [1] CYLINDER BLOCK  
  7N-7446 [1] GASKET-AIR COMPRESSOR  
23. 4W-9489 C [1] LOCKRING  
   
    THE FOLLOWING REPAIR
    KITS ARE AVAILABLE:
  7N-7435 [1] KIT-AIR COMPRESSOR  
    (INCL STOPS, SPRINGS,
    SEATS, GUIDES, GASKETS,
    SEALS, BOLTS, & WASHERS)
  7N-7436 [1] KIT-PISTON RINGS  
    (INCL PISTON RINGS)
  C   CHANGE FROM PREVIOUS TYPE
 

#ZEBP12980092
 

2Y-9941: AIR COMPRESSOR GP

2Y9941 AIR COMPRESSOR GP
S/N 12Y350-UP
PART OF 7N5642 COMPRESSOR
c593265 ZEBP1298
2Y9941 AIR COMPRESSOR GP Parts scheme
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Parts for your 621R WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-7448 [1] GASKET-AIR COMPRESSOR  
2. 7N-7447 [1] HEAD AS-COMPRESSOR  
3. 0S-1619 [5] BOLT  
4. 7N-7449 [1] ADAPTER  
  1S-7107 [1] GASKET  
5. 0L-1352 [1] BOLT  
  5M-2894 [1] WASHER  
6. 2B-2695 [2] BOLT  
7. 3B-4505 [8] LOCKWASHER  
8. 7N-7450 [1] COVER-UNLOADER  
  7N-7451 [1] GASKET-UNLOADER  
  0S-1615 [2] BOLT  
9. 0S-1615 [2] BOLT  
  5P-0537 [2] WASHER  
10. 2B-0858 [2] PLUG-PIPE  
11. 7N-7441 [1] COVER-AIR COMPRESSOR  
  7N-7442 [1] GASKET-AIR COMPRESSOR  
12. 9F-2247 [1] PLUG  
13. 034-4160 [4] BOLT-LOCKING  
14. 7N-7444 [2] ROD AS-AIR COMPRESSOR  
15. 0S-1617 [6] BOLT  
16. 7N-7439 [1] PLATE-COVER  
  7N-7440 [1] GASKET-AIR COMPRESSOR  
17. 8H-9789 [2] BALL BEARING  
18. 7N-7438 [1] CRANKSHAFT-AIR COMPRESSOR  
19. 7N-7443 [2] PISTON AS-COMPRESSOR  
20. 1A-2029 [6] BOLT  
  3B-4506 [6] LOCKWASHER  
21. 4B-4845 [1] PLUG  
22. 7N-7445 [1] CYLINDER BLOCK  
  7N-7446 [1] GASKET-AIR COMPRESSOR  
23. 1W-7147 [1] CRANKCASE-COMPRESSOR  
24. 4W-9489 [1] LOCKRING  
    THE FOLLOWING REPAIR
    KITS ARE AVAILABLE:
  7N-7435 [1] KIT-AIR COMPRESSOR  
    (INCL STOPS,SPRINGS
    SEATS,GUIDES,GASKETS)
  7N-7436 [1] KIT-PISTON RING  
    (INCL RINGS)
 

#ZEBP12980093
 

2Y-8685: AIR COMPRESSOR GP

2Y8685 AIR COMPRESSOR GP
BK DWN 1W7146
c475217 ZEBP1298
2Y8685 AIR COMPRESSOR GP Parts scheme
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Parts for your 621R WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1W-7146 Y [1] AIR COMPRESSOR GP  
  Y   SEPARATE ILLUSTRATION
 

#ZEBP12980094
 

7N-7768: LINES GP-TURBOCHARGER OIL

7N7768 TURBOCHARGER OIL LINES GROUP
c230972 ZEBP1298
7N7768 LINES GP-TURBOCHARGER OIL Parts scheme
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Parts for your 621R WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1S-4810 [1] GASKET  
2. 0S-1594 [2] BOLT  
3. 5M-2894 [2] WASHER  
4. 8N-2966 [1] TUBE ASSEM.  
5. 9M-4849 [1] SEAL  
6. 2P-3948 [1] ELBOW  
7. 4M-6480 [1] GASKET  
8. 9M-6522 [1] CONNECTOR  
9. 7N-8135 [1] TUBE ASSEM.  
10. 0S-1571 [2] BOLT  
11. 7H-3270 [1] GASKET  
12. 0S-1591 [2] BOLT  
 

#ZEBP12980095
 

8N-2801: TURBOCHARGER GP

8N2801 TURBOCHARGER GP
8N2749-PAGE 43
c352036 ZEBP1298
8N2801 TURBOCHARGER GP Parts scheme
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Parts for your 621R WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8N-2749 Y [1] TURBOCHARGER GP  
2. 7L-3195 C [4] BOLT  
  2N-2766 C [4] LOCKNUT  
3. 1S-4295 [1] GASKET-TURBOCHARGER  
  C   CHANGE FROM PREVIOUS TYPE
  Y   SEPARATE ILLUSTRATION
 

#ZEBP12980096
 

8N-2749: TURBOCHARGER GP

8N2749 BASIC TURBOCHARGER GROUP
PART OF 8N2801 TURBOCHARGER GROUP SHOWN ON PAGE 42
NOTE: FOR FIELD REPLACEMENT ORDER 6N7519 SHOWN ON PAGE 44
c230971 ZEBP1298
8N2749 TURBOCHARGER GP Parts scheme
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Parts for your 621R WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9N-0111 R [1] CARTRIDGE ASSEM.  
  7N-0239 H [1] NUT  
2. 9N-2378 [1] WHEEL  
3. 5S-4556 [1] INSERT  
4. 5S-4546 H [1] RING  
5. 5P-5757 H [1] SEAL  
6. 5S-4554 H [1] SEAL  
7. 4N-7597 [1] BEARING  
8. 4N-7609 [2] RING  
9. 5S-4557 H [2] BEARING  
10. 4M-6983 H [4] RING  
11. 4N-9540 R [1] HOUSING ASSEM.  
  5S-5199 [2] PIN  
12. 4N-9556 [1] SHROUD  
13. 7N-2856 H [1] RING  
14. 5S-4551 H [1] SLEEVE  
15. 4M-8013 H [2] RING  
16. 9S-8993 R [1] WHEEL ASSEM.  
17. 8H-3710 [2] SCREW  
18. 9S-1180 [1] NAMEPLATE  
19. 5S-4547 H [1] SLEEVE  
20. 5S-4549 H [1] DEFLECTOR  
21. 8S-9222 H [1] SLEEVE  
22. 5S-4545 H [1] NAMEPLATE  
23. 5S-4517 [1] "V" CLAMP ASSEM.  
  7M-9918 [1] NUT  
24. 1P-6460 [1] HOUSING (turbine)  
25. 5S-4558 [1] "V" CLAMP ASSEM.  
  7M-9918 [1] NUT  
26. 6N-7697 [1] COVER (compressor)  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  6N-7245 [1] KIT (cartridge repair)  
    (Includes parts marked h)
 

#ZEBP12980097
 

6N-7519: TURBOCHARGER GP

6N7519 TURBOCHARGER GROUP-FIELD INSTALLATION*R
c231192 ZEBP1298
6N7519 TURBOCHARGER GP Parts scheme
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Parts for your 621R WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9N-0111 R [1] CARTRIDGE ASSEM.  
  7N-0239 H [1] NUT  
2. 9N-2378 [1] WHEEL  
3. 5S-4556 [1] INSERT  
4. 5S-4546 H [1] RING  
5. 5P-5757 H [1] SEAL  
6. 5S-4554 H [1] SEAL  
7. 4N-7597 C [1] BEARING  
8. 4N-7609 C [2] RING  
9. 5S-4557 H [2] BEARING  
10. 4M-6983 H [4] RING  
11. 4N-9540 R [1] HOUSING ASSEM.  
12. 5S-5199 [2] PIN  
13. 4N-9556 [1] SHROUD  
14. 5S-4551 H [1] SLEEVE  
15. 7N-2856 CH [1] RING  
16. 9S-8993 R [1] WHEEL ASSEM.  
17. 8H-3710 [2] SCREW  
18. 9S-1180 [1] NAMEPLATE  
19. 5S-4547 H [1] SLEEVE  
20. 5S-4549 H [1] DEFLECTOR  
21. 8S-9222 H [1] SLEEVE  
22. 4M-8013 H [2] RING  
23. 5S-4517 [1] "V" CLAMP ASSEM.  
  7M-9918 [1] NUT  
24. 1P-1378 R [1] HOUSING (turbine)  
25. 5S-4558 [1] "V" CLAMP ASSEM.  
  7M-9918 [1] NUT  
26. 6N-7697 [1] COVER (compressor)  
27. 5S-4545 [1] NAMEPLATE  
    THE FOLLOWING REPAIR KIT IS AVAILABLE:
  6N-7245 [1] KIT (cartridge repair)  
    (Includes parts marked H)
  C   INDICATES CHANGE
  R   REMFG PART MAY BE AVAILABLE
 

#ZEBP12980098
 

7N-8012: MANIFOLD GP-EXHAUST

7N8012 EXHAUST MANIFOLD GROUP
c230945 ZEBP1298
7N8012 MANIFOLD GP-EXHAUST Parts scheme
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Parts for your 621R WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9L-5521 [1] MANIFOLD (rear)  
2. 9L-5520 [1] MANIFOLD (center)  
3. 9L-5519 [1] MANIFOLD (front)  
4. 7L-0520 [12] STUD  
  8M-2296 [12] NUT  
5. 8M-7145 [11] WASHER  
6. 9M-6527 [1] WASHER  
7. 8S-6410 [3] GASKET  
 

#ZEBP12980099
 

7N-8395: MUFFLER GP

7N8395 MUFFLER GROUP
c406286 ZEBP1298
7N8395 MUFFLER GP Parts scheme
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Parts for your 621R WHEEL TRACTOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8N-6665 C [2] STRAP-MUFFLER  
2. 2Y-5247 C [1] MUFFLER AS  
3. 1C-2251 [4] BOLT  
  1D-4717 [4] NUT  
  5M-2894 [8] WASHER  
4. 7N-8495 [1] SUPPORT AS  
5. 8N-6665 [1] STRAP-MUFFLER  
6. 4N-6212 [1] BRACKET AS  
7. 8N-6665 [1] STRAP-MUFFLER  
8. 0S-1595 [3] BOLT (SHORT)  
  5P-8245 [3] WASHER  
    -OR-
  0S-1587 C [3] BOLT (LONG)  
  9D-4513 C [3] WASHER  
9. 2A-4639 [2] BOLT  
10. 6B-7469 [2] SPACER  
  C   CHANGE FROM PREVIOUS TYPE
 

Information:

General Service Information
Tu-Flo 300 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Tu-Flo 400, 500, 1000 Compressors
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Tu-Flo 501 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Tu-Flo 600 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Tu-Flo 700 Compressor
AIR COMPRESSORS TU-FLO 300, 400, 500, 501, 600, 700 & 1000 C
Truck Engine News
A New Special Instruction , "Troubleshooting Compressed Air System Components and Performance" Is Available {1803, 5500}
2002/09/01
Special Instruction
Air Compressor Installation Instructions{1803}
Air Compressor Installation Instructions{1803}
Troubleshooting Compressed Air System Components and Performance{1803, 5500}
Troubleshooting Compressed Air System Components and Performance{1803, 5500}
Specifications
Air Compressor Governor
621R WHEEL TRACTOR-SCRAPER AIR SYSTEM AND BRKES
Disassembly and Assembly
Air Compressor
3306 VEHICULAR ENGINE FOR 621R TRACTOR
Service Magazine
New Crankshaft Assemblies{1202,1204,1206,1207,1212}
1982/11/01
Sleeve-Type Ring Compressors Can Be Used For Installation Of Pistons From The Bottom Of The Engine{0622}
1978/08/21
A New Special Instruction, REHS1428 , "Troubleshooting Compressed Air System Components and Performance" Is Available {1803, 5500}
2002/09/23
A New Diagnostic Kit for the Evaluation of Air Compressor Operation is Introduced {1803}
2004/11/15

Caterpillar Parts SIS Catalog 621R :

AIR COMPRESSOR GP
6N-7582 AIR COMPRESSOR GP
AIR COMPRESSOR GP
7N-5642 AIR COMPRESSOR GP
AIR COMPRESSOR GP
7N-5642 AIR COMPRESSOR GP
AIR COMPRESSOR GP
6N-7628 AIR COMPRESSOR GP
AIR COMPRESSOR GP
6N-7628 AIR COMPRESSOR GP
LINES GP-AIR COMPRESSOR
7N-8551 LINES GP-AIR COMPRESSOR
LINES GP-AIR COMPRESSOR
7N-5643 LINES GP-AIR COMPRESSOR
LINES GP-AIR COMPRESSOR
7N-5643 LINES GP-AIR COMPRESSOR
AIR COMPRESSOR GP
1W-7146 AIR COMPRESSOR GP
AIR COMPRESSOR GP
2Y-9941 AIR COMPRESSOR GP
AIR COMPRESSOR GP
2Y-8685 AIR COMPRESSOR GP
LINES GP-TURBOCHARGER OIL
7N-7768 LINES GP-TURBOCHARGER OIL
TURBOCHARGER GP
8N-2801 TURBOCHARGER GP
TURBOCHARGER GP
8N-2749 TURBOCHARGER GP
TURBOCHARGER GP
6N-7519 TURBOCHARGER GP
MANIFOLD GP-EXHAUST
7N-8012 MANIFOLD GP-EXHAUST

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