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1N3576 CYLINDER BLOCK GROUP PROVIDES FIELD REPLACEMENT FOR 7N6550 SHOWN ON PAGE 8 973 TRACK LOADER


BASIC ENGINE
CYLINDER BLOCK GP
CRANKSHAFT GP
CYLINDER BLOCK GP
CRANKSHAFT GP
CAMSHAFT GP
CRANKSHAFT GP
CYLINDER HEAD GP
PISTON & ROD GP
CYLINDER HEAD GP

TRACK LOADER 973 TRACK LOADER 66G
 973 TRACK LOADER / HIGH DRIVE / 66G00001-UP (MACHINE) POWERED BY 3306 ENGINE HEBP1386 973 66G   (1982)

BASIC ENGINE

CYLINDER BLOCK GP
CYLINDER BLOCK GP
8N-5286 CYLINDER BLOCK GP
CYLINDER BLOCK AS
7N-6550 CYLINDER BLOCK AS
CYLINDER BLOCK GP
1N-3576 CYLINDER BLOCK GP
COVER GP-CYLINDER BLOCK
7N-1339 COVER GP-CYLINDER BLOCK
 

#HEBP13860010
 

1N-3576: CYLINDER BLOCK GP

1N3576 CYLINDER BLOCK GROUP
PROVIDES FIELD REPLACEMENT FOR 7N6550 SHOWN ON PAGE 8
c231968 HEBP1386
1N3576 CYLINDER BLOCK GP Parts scheme
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Parts for your 973 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7M-4046 [4] BEARING-SLEEVE  
2. 2B-0858 [1] PLUG-PIPE  
3. 8K-1207 [2] DOWEL  
4. 4B-5387 [1] PLUG-CUP  
5. 1S-9540 [1] DOWEL  
6. 5B-7652 [2] DOWEL  
7. 6N-8003 [7] CAP-CRANKSHAFT BEARING  
8. 4B-3938 [1] PLUG-CUP  
9. 8B-6349 [2] DOWEL  
10. 5S-8462 [1] STUD  
11. 8N-4110 [1] BEARING-SLEEVE  
12. 4B-9782 [1] BALL  
13. 7S-3224 [14] BOLT (5/8-11X5.25IN)  
  2S-5658 [14] WASHER-HARD (3.0MM THK)  
 

#HEBP13860011
 

6N-8079: CRANKSHAFT GP

6N8079 CRANKSHAFT GROUP
NOTE: FOR FIELD REPLACEMENT OF 4N7697 CRANKSHAFT ASSEMBLY ORDER 4N7693
SHOWN ON PAGE 11
c496454 HEBP1386
6N8079 CRANKSHAFT GP Parts scheme
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Parts for your 973 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-9342 [2] PLATE-THRUST  
2. 4N-7697 [1] CRANKSHAFT AS  
3. 9F-2247 [6] PLUG  
4. 4W-5738 C [7] BEARING-MAIN (STANDARD)  
  8N-8225 AJ [7] BEARING-MAIN (.25MM US)  
  8N-8226 AJ [7] BEARING-MAIN (.51MM US)  
  8N-8227 AJ [7] BEARING-MAIN (.76MM US)  
  8N-8228 AJ [7] BEARING-MAIN (.51MM OS)  
  8N-8229 AJ [7] BEARING-MAIN  
    (.25MM US .51MM OS)
   
    J-USE AS REQUIRED
  A   NOT PART OF THIS GROUP
  C   CHANGE FROM PREVIOUS TYPE
 

#HEBP13860012
 

7N-1339: COVER GP-CYLINDER BLOCK

7N1339 CYLINDER BLOCK COVER GROUP
c222959 HEBP1386
7N1339 COVER GP-CYLINDER BLOCK Parts scheme
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Parts for your 973 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1M-0130 [1] COVER  
  4M-6480 [1] GASKET  
2. 1A-2029 [2] BOLT  
3. 5M-2894 [4] WASHER  
4. 8L-8662 [1] COVER  
5. 5S-8055 [1] GASKET  
6. 0L-1351 [2] BOLT  
7. 8M-3267 [1] SCREW-HEX SOCKET  
8. 2M-4453 [1] SEAL-O-RING  
9. 1S-1768 [1] SLEEVE  
10. 4L-3395 [2] PIN-DOWEL  
 

#HEBP13860013
 

2P-7308: SEAL GP-CRANKSHAFT

2P7308 CRANKSHAFT SEAL GROUP
c117309 HEBP1386
2P7308 SEAL GP-CRANKSHAFT Parts scheme
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Parts for your 973 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5S-9022 [1] SEAL-LIP TYPE  
2. 2P-3859 [1] SLEEVE-WEAR  
3. 5S-6296 [1] SEAL-LIP TYPE  
 

#HEBP13860014
 

4N-7693: CRANKSHAFT AS

4N7693 CRANKSHAFT ASSEMBLY-FIELD INSTALLATION*R
c509567 HEBP1386
4N7693 CRANKSHAFT AS Parts scheme
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Parts for your 973 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4N-7696 [1] CRANKSHAFT  
2. 9F-2247 [6] PLUG  
3. 5H-2671 [1] KEY-WOODRUFF  
4. 1W-9812 C [1] GEAR  
  C   CHANGE FROM PREVIOUS TYPE
 

#HEBP13860015
 

1N-4406: CAMSHAFT GP-SINGLE

1N4406 CAMSHAFT GROUP-SINGLE
c403838 HEBP1386
1N4406 CAMSHAFT GP-SINGLE Parts scheme
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Parts for your 973 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7C-3863 C [1] CAMSHAFT  
2. 7S-2204 [1] WASHER-THRUST  
3. 8S-1491 [1] LOCK  
4. 0S-0509 [2] BOLT  
  C   CHANGE FROM PREVIOUS TYPE
 

#HEBP13860016
 

CRANKSHAFT BEARING REPLACEMENTS

CRANKSHAFT BEARING REPLACEMENTS
HEBP13860016 HEBP1386
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Parts for your 973 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
    CYLINDER BLOCK NOT REBORED
    CRANKSHAFT GROUND FOR UNDERSIZE
    MAIN BEARING I.D. OF:
  8N-8225 [7] 0.25 MM  
  8N-8226 [7] 0.51 MM  
  8N-8227 [7] 0.76 MM  
    CYLINDER BLOCK REBORED (0.51 MM)
    (FOR BEARING OVERSIZE O.D.)
    CRANKSHAFT GROUND FOR UNDERSIZE
    MAIN BEARING I.D. OF:
  8N-8228 [7] 0 (STANDARD)  
  8N-8229 [7] 0.25 MM  
 

#HEBP13860017
 

2P-6530: COVER GP-CYLINDER HEAD

2P6530 CYLINDER HEAD COVER GROUP
c218681 HEBP1386
2P6530 COVER GP-CYLINDER HEAD Parts scheme
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Parts for your 973 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1P-6367 [1] COVER  
  5S-6735 [1] GASKET  
2. 2P-3201 [4] BOLT (Washer Head)  
    -OR-
  0S-1594 [4] BOLT (1 in.) long  
  5M-2894 [4] WASHER  
 

#HEBP13860018
 

2W-1177: PISTON & ROD GP

2W1177 CONNECTING ROD & PISTON GROUP-6 REQUIRED*R
c498101 HEBP1386
2W1177 PISTON & ROD GP Parts scheme
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Parts for your 973 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-9805 [1] PIN-PISTON  
2. 1S-9543 [2] RETAINER-PIN  
3. 8N-1721 R [1] ROD AS-CONNECTING  
  8N-1849 [1] BEARING-CONNECTING ROD  
4. 1P-9956 [2] BOLT-CONNECTING ROD  
  5S-6348 [2] NUT-SPECIAL  
5. 4W-5739 C [1] BEARING-CONNECTING ROD (STANDARD)  
  8N-8221 C [1] BEARING-CONNECTING ROD (.010IN US)  
  8N-8222 C [1] BEARING-CONNECTING ROD (.020IN US)  
  8N-8223 C [1] BEARING-CONNECTING ROD (.030IN US)  
6. 2W-1711 [1] PISTON GP  
7. 9L-6934 J [1] RING-PISTON (OIL)  
8. 2W-1708 J [1] RING (INTERMEDIATE)  
9. 2W-1707 J [1] RING-PISTON (TOP)  
10. 8N-3102 R [1] BODY AS-PISTON  
   
    THE FOLLOWING REPAIR
    KIT IS AVAILABLE:
  2W-1709 [1] KIT-PISTON RINGS (INCL PARTS MARKED J)  
  C   CHANGE FROM PREVIOUS TYPE
  R   REMFG PART MAY BE AVAILABLE
 

#HEBP13860019
 

8N-0246: CYLINDER HEAD GP

8N0246 CYLINDER HEAD GROUP
c320246 HEBP1386
8N0246 CYLINDER HEAD GP Parts scheme
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Parts for your 973 TRACK LOADER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7S-7144 [12] SPRING-VALVE  
2. 1W-5300 C [12] ROTOCOIL AS  
    (EACH INCLUDES)
  6N-7174 [1] SHIELD-OIL  
3. 2A-4429 [24] LOCK-RETAINER  
4. 8N-6796 R [1] CYLINDER HEAD GP  
5. 0S-1594 [4] BOLT  
6. 5M-2894 [4] WASHER  
7. 1P-6367 [1] COVER  
8. 5S-6735 [1] GASKET  
9. 3B-0623 [6] PLUG-CUP  
10. 3S-8313 [7] PLUG-CUP  
11. 1S-3062 [18] DIRECTOR-WATER  
12. 2B-0858 [3] PLUG-PIPE  
13. 7N-4448 [6] INSERT (INTAKE)  
14. 2W-4837 C [6] INSERT (EXHAUST)  
15. 2P-1262 [12] GUIDE-VALVE  
16. 3P-1896 [12] PLUG-CUP  
17. 7H-3171 [1] PLUG-PIPE  
18. 3S-5496 [1] SEAL-O-RING  
19. 7N-7999 [1] GASKET-CYLINDER HEAD  
20. 2W-2620 C [6] VALVE-INLET  
21. 6N-9916 [6] VALVE-EXHAUST  
22. 4W-8087 C [18] SEAL-WATER  
23. 7N-8018 [6] SEAL-WATER  
  C   CHANGE FROM PREVIOUS TYPE
  R   REMFG PART MAY BE AVAILABLE
 

Information:

Special Instruction
Using 5P4175 Boring Tool Group And 5P1618 Tool Arrangement{0672, 1200}
Using 5P4175 Boring Tool Group And 5P1618 Tool Arrangement{0672, 1200}
Tool Operating Manual
420-7630 Main Bearing Cap Lifting Device{0599, 0629, 0632, 0701, 1201, 1203, 1230}
420-7630 Main Bearing Cap Lifting Device{0599, 0629, 0632, 0701, 1201, 1203, 1230}
Using the 242-3980 Piston Groove Gauge on 3500A and B Engines with Monotherm Pistons using the 329-2630 and 329-2631 Piston Groove Gauges on 3500B Engines with Monotherm Pistons{0374, 0599, 0700, 0701, 0705}
Using the 242-3980 Piston Groove Gauge on 3500A and B Engines with Monotherm Pistons using the 329-2630 and 329-2631 Piston Groove Gauges on 3500B Engines with Monotherm Pistons{0374, 0599, 0700, 0701, 0705}

Caterpillar Parts SIS Catalog 973 :

CYLINDER BLOCK AS
7N-6550 CYLINDER BLOCK AS
CYLINDER BLOCK GP
8N-5286 CYLINDER BLOCK GP
8G-2037 SUPPRESSION AR-SOUND
7N-9419 SUPPRESSION GP-SOUND
3A-7447 SUPPRESSION GP-SOUND
5C-9442 ENGINE AR
5C-9443 ENGINE AR-SOUND
7N-5106 ENGINE AR
CRANKSHAFT GP
6N-8079 CRANKSHAFT GP
COVER GP-CYLINDER BLOCK
7N-1339 COVER GP-CYLINDER BLOCK
SEAL GP-CRANKSHAFT
2P-7308 SEAL GP-CRANKSHAFT
CRANKSHAFT AS
4N-7693 CRANKSHAFT AS
CAMSHAFT GP-SINGLE
1N-4406 CAMSHAFT GP-SINGLE
CRANKSHAFT BEARING REPLACEMENTS
COVER GP-CYLINDER HEAD
2P-6530 COVER GP-CYLINDER HEAD
PISTON & ROD GP
2W-1177 PISTON & ROD GP

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