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4N7446 CYLINDER HEAD ASSEMBLY Engine Serial No. 3N39326 to 3N55449 inclusive Part of 9N2382 Cylinder Head Group shown on Page 23 637D


BASIC ENGINE
CYLINDER HEAD GP
VALVE MECHANISM GP

WHEEL SCRAPER 637D WHEEL SCRAPER 20W
 637D SCRAPERS 20W00001-00494 (MACHINE) POWERED BY 3306 ENGINE SEBP1061 637D 20W   (1976)

BASIC ENGINE

CYLINDER HEAD GP
CYLINDER HEAD GP
9N-3561 CYLINDER HEAD GP
CYLINDER HEAD GP
9N-3561 CYLINDER HEAD GP
CYLINDER HEAD AS
4N-7446 CYLINDER HEAD AS
FASTENER GP-CYLINDER HEAD
2P-6546 FASTENER GP-CYLINDER HEAD
CYLINDER HEAD AS
6N-8889 CYLINDER HEAD AS
FASTENER GP-CYLINDER HEAD
7N-9536 FASTENER GP-CYLINDER HEAD
 

#SEBP10610030
 

4N-7446: CYLINDER HEAD AS

4N7446 CYLINDER HEAD ASSEMBLY
Engine Serial No. 3N39326 to 3N55449 inclusive
Part of 9N2382 Cylinder Head Group shown on Page 23
c205775 SEBP1061
4N7446 CYLINDER HEAD AS Parts scheme
  For full view, you need register

Parts for your 637D WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1S-3062 [18] DIRECTOR  
2. 2B-0858 C [3] PLUG  
3. 3B-0623 [6] PLUG  
4. 3S-8313 [7] PLUG  
5. 1P-6367 [1] COVER  
6. 5S-6735 [1] GASKET  
7. 0S-1594 [4] BOLT  
  3B-4506 [4] LOCKWASHER  
8. 2P-1262 [12] GUIDE  
9. 5S-7218 [6] INSERT (intake)  
10. 5S-7221 [6] INSERT (exhaust)  
  C   INDICATES CHANGE
 

#SEBP10610031
 

2P-6546: FASTENER GP-CYLINDER HEAD

2P6546 CYLINDER HEAD FASTENER GROUP
Engine Serial No. 3N39326 to 3N79762 inclusive
c222689 SEBP1061
2P6546 FASTENER GP-CYLINDER HEAD Parts scheme
  For full view, you need register

Parts for your 637D WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1A-5964 CB [7] BOLT 11.4CM(4.50IN)  
2. 1B-7709 [6] BOLT (LOCATION X)  
  2S-0736 [6] WASHER-HARD  
3. 1D-4595 [20] BOLT  
  2S-0736 [20] WASHER-HARD  
4. 5B-2638 CB [1] BOLT  
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP10610032
 

6N-8889: CYLINDER HEAD AS

6N8889 CYLINDER HEAD ASSEMBLY
Engine Serial No. 3N55450 to 3N74334 inclusive
Part of 9N2382 Cylinder Head Group shown on Page 23A
c212515 SEBP1061
6N8889 CYLINDER HEAD AS Parts scheme
  For full view, you need register

Parts for your 637D WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 1S-3062 [18] DIRECTOR-WATER  
2. 2B-0858 [3] PLUG-PIPE  
3. 3B-0623 [6] PLUG-CUP  
4. 3S-8313 [7] PLUG-CUP  
5. 1P-6367 [1] COVER  
6. 5S-6735 [1] GASKET  
7. 0S-1594 [4] BOLT  
  5M-2894 [4] WASHER  
8. 2P-1262 [12] GUIDE-VALVE  
9. 5S-7218 [6] INSERT-VALVE SEAT (INTAKE)  
10. 5S-7221 [6] INSERT (EXHAUST)  
 

#SEBP10610033
 

7N-9536: FASTENER GP-CYLINDER HEAD

7N9536 CYLINDER HEAD FASTENER GROUP
Engine Serial No. 3N79763-Up
c226521 SEBP1061
7N9536 FASTENER GP-CYLINDER HEAD Parts scheme
  For full view, you need register

Parts for your 637D WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 5B-9603 [7] BOLT  
2. 1B-7709 C [5] BOLT (LOCATION X)  
3. 1D-4595 B [20] BOLT  
4. 2S-0736 C [25] WASHER-HARD  
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
 

#SEBP10610034
 

8N-1187: CYLINDER HEAD GP

8N1187 CYLINDER HEAD GROUP
Engine Serial No. 3N79763-Up
Part of 9N3561 Cylinder Head Group shown on Page 23D
c223144 SEBP1061
8N1187 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 0S-1594 [4] BOLT  
2. 5M-2894 [4] WASHER  
3. 1P-6367 [1] COVER  
4. 5S-6735 [1] GASKET  
5. 3B-0623 [6] PLUG  
6. 3S-8313 [7] PLUG  
7. 1S-3062 [18] DIRECTOR  
8. 2B-0858 [3] PLUG  
9. 7N-4448 [6] INSERT (intake)  
10. 5S-7221 [6] INSERT (exhaust)  
11. 2P-1262 [12] GUIDE  
12. 7N-2597 [1] SPACER  
 

#SEBP10610035
 

2P-6530: COVER GP-CYLINDER HEAD

2P6530 CYLINDER HEAD COVER GROUP
Engine Serial No. 3N39326 to 3N91601 inclusive
c218681 SEBP1061
2P6530 COVER GP-CYLINDER HEAD Parts scheme
  For full view, you need register

Parts for your 637D WHEEL SCRAPER:

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  
 

#SEBP10610036
 

2P-6526: VALVE-MECHANISM GP

2P6526 VALVE MECHANISM GROUP
Engine Serial No. 3N39326 to 3N78910 inclusive
c207986 SEBP1061
2P6526 VALVE-MECHANISM GP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 9S-9203 [1] SHAFT ASSEM.  
  0L-1026 [2] PLUG (.50 in. Diameter)  
2. 5S-5879 [1] BRACKET  
  5M-4606 [1] DOWEL  
3. 4B-4910 [5] SPRING  
4. 9H-1110 [12] WASHER  
5. 5S-5879 C [4] BRACKET  
6. 5S-6855 [6] ARM ASSEM. (Exhaust)  
7. 5S-6854 [6] ARM ASSEM. (Intake)  
8. 8S-1499 [1] BRACKET ASSEM.  
  3F-6795 [1] DOWEL  
9. 9M-9886 [2] WASHER  
  9H-1112 [2] SPRING  
10. 1B-4203 [12] NUT  
11. 5S-5917 C [12] SCREW  
12. 5S-5918 [12] ROD  
13. 7S-3161 [12] LIFTER  
14. 9H-1113 [2] RING  
  C   INDICATES CHANGE
 

#SEBP10610037
 

2P-6526: VALVE-MECHANISM GP

2P6526 VALVE MECHANISM GROUP
Engine Serial No. 3N78911 to 3N79762 inclusive
c172109 SEBP1061
2P6526 VALVE-MECHANISM GP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8N-3254 C [1] SHAFT ASSEM.  
  0L-1026 [2] PLUG (.50 in. Diameter)  
2. 5S-5879 [1] BRACKET  
  5M-4606 [1] DOWEL  
3. 4B-4910 [5] SPRING  
4. 9H-1110 [12] WASHER  
5. 5S-5879 [4] BRACKET  
6. 8N-3324 C [6] ARM ASSEM. (Exhaust)  
7. 8N-3326 C [6] ARM ASSEM. (Intake)  
8. 8S-1499 [1] BRACKET ASSEM.  
  3F-6795 [1] DOWEL  
9. 9M-9886 [2] WASHER  
  9H-1112 [2] SPRING  
10. 1B-4203 [12] NUT  
11. 5S-5917 [12] SCREW  
12. 5S-5918 [12] ROD  
13. 7S-3161 [12] LIFTER  
14. 9H-1113 [2] RING  
  C   INDICATES CHANGE
 

#SEBP10610038
 

7N-8026: VALVE MECHANISM GP

7N8026 VALVE MECHANISM GROUP
Engine Serial No. 3N79763 to 3N87116 inclusive
c222404 SEBP1061
7N8026 VALVE MECHANISM GP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 7N-8027 [1] SHAFT ASSEM.  
2. 7N-8015 [1] BRACKET  
  5M-4606 [1] DOWEL  
3. 4B-4910 [5] SPRING  
4. 9H-1110 [12] WASHER  
5. 5S-5879 [4] BRACKET  
6. 5S-6855 [6] ARM ASSEM. (Exhaust)  
7. 5S-6854 [6] ARM ASSEM. (intake)  
8. 8S-1499 [1] BRACKET ASSEM.  
  3F-6795 [1] DOWEL  
9. 9M-9886 [2] WASHER  
  9H-1112 [2] SPRING  
10. 1B-4203 [12] NUT  
11. 5S-5917 [12] SCREW  
12. 5S-5918 [12] ROD  
13. 7S-3161 [12] LIFTER  
14. 9H-1113 [2] RING  
15. 5P-5598 [1] SEAL  
 

#SEBP10610039
 

7N-8026: VALVE MECHANISM GP

7N8026 VALVE MECHANISM GROUP
Engine Serial No. 3N87117-Up
c225937 SEBP1061
7N8026 VALVE MECHANISM GP Parts scheme
  For full view, you need register

Parts for your 637D WHEEL SCRAPER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8N-3252 C [1] SHAFT AS-ROCKER  
  0L-1026 [2] PLUG-CUP  
2. 7N-8015 [1] BRACKET-ROCKER ARM SHAFT  
  5M-4606 [1] DOWEL  
3. 4B-4910 [5] SPRING  
4. 9H-1110 [12] WASHER  
5. 5S-5879 [4] BRACKET-SHAFT  
6. 8N-3324 [6] ROCKER ARM AS-VALVE (EXHAUST)  
7. 8N-3326 [6] ROCKER ARM AS-VALVE (INLET)  
8. 8S-1499 [1] BRACKET AS-SHAFT  
  3F-6795 [1] DOWEL  
9. 9M-9886 B [2] WASHER  
  9H-1112 [2] SPRING  
  9H-1113 [2] RING-RETAINER  
10. 1B-4203 [12] NUT-FULL  
11. 5S-5917 [12] SCREW-ROCKER ADJUSTING  
12. 5S-5918 [12] ROD-VALVE PUSH  
13. 7S-3161 [12] LIFTER-VALVE  
14. 5P-5598 [1] SEAL-O-RING  
15. 1B-7709 C [1] BOLT  
  2S-0736 C [1] WASHER-HARD  
  B   USE AS REQUIRED
  C   CHANGE FROM PREVIOUS TYPE
 

Information:

Tool Operating Manual
Operating Instructions for 155-1536 Valve Recession Tool Kit for all G3500 and 3500 Engines{0374, 0599, 0701, 0703, 0759, 0767}
Operating Instructions for 155-1536 Valve Recession Tool Kit for all G3500 and 3500 Engines{0374, 0599, 0701, 0703, 0759, 0767}
Operating Instructions for 148-2997 Valve Recession Tool Group Used On 3600, G3600, and C175 Engines{0374, 0599, 0701, 0703, 0759}
Operating Instructions for 148-2997 Valve Recession Tool Group Used On 3600, G3600, and C175 Engines{0374, 0599, 0701, 0703, 0759}
185-5321 Cylinder Head Lifting Hook Assembly{0599, 0632, 0703, 1101, 6459}
185-5321 Cylinder Head Lifting Hook Assembly{0599, 0632, 0703, 1101, 6459}
188-3922 Broken Exhaust Bolt and Stud Removal Group for 3114, 3116, 3126, 3126B, 3176, 3176B, C-10, and C12 Engines{0374, 0599, 0701, 0702, 0703}
188-3922 Broken Exhaust Bolt and Stud Removal Group for 3114, 3116, 3126, 3126B, 3176, 3176B, C-10, and C12 Engines{0374, 0599, 0701, 0702, 0703}
CRB Valve Spring Testers 8S-2263 and 4C-9496{0374, 0599, 0700, 0701, 1108}
CRB Valve Spring Testers 8S-2263 and 4C-9496{0374, 0599, 0700, 0701, 1108}
Reuse And Salvage Guidelines
Engine Valve Failure Modes{1100, 1105}
Engine Valve Failure Modes{1100, 1105}
Reuse and Salvage for Cylinder Head Assemblies {1100, 1101, 1103, 1104, 1105, 1106, 1108, 1109, 1115, 1117, 1121, 1124, 1125}
Reuse and Salvage for Cylinder Head Assemblies {1100, 1101, 1103, 1104, 1105, 1106, 1108, 1109, 1115, 1117, 1121, 1124, 1125}
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Using the 9U-5383 Vacuum Tester {0774, 0781, 1000, 1100}
Using the 9U-5383 Vacuum Tester {0774, 0781, 1000, 1100}
Applied Failure Analysis
Engine Valve Failure Modes{1100, 1105}
Engine Valve Failure Modes{1100, 1105}
Service Magazine
Caterpillar Warranty Claims on Cylinder Head Valves {1105}
2005/10/03
Later Pre-Chamber Cylinder Heads On Early 3304 Engines Without Drilled Rocker Stands Are Used {1100}
2012/10/11

Caterpillar Parts SIS Catalog 637D :

CYLINDER HEAD GP
9N-3561 CYLINDER HEAD GP
CYLINDER HEAD GP
9N-3561 CYLINDER HEAD GP
CYLINDER HEAD GP
9N-2382 CYLINDER HEAD GP
CYLINDER HEAD GP
9N-2382 CYLINDER HEAD GP
CYLINDER HEAD GP
9N-2382 CYLINDER HEAD GP
PISTON & ROD GP
9N-1291 PISTON & ROD GP
CAMSHAFT GP-SINGLE
2P-6202 CAMSHAFT GP-SINGLE
PISTON & ROD GP
9N-1291 PISTON & ROD GP
FASTENER GP-CYLINDER HEAD
2P-6546 FASTENER GP-CYLINDER HEAD
CYLINDER HEAD AS
6N-8889 CYLINDER HEAD AS
FASTENER GP-CYLINDER HEAD
7N-9536 FASTENER GP-CYLINDER HEAD
CYLINDER HEAD GP
8N-1187 CYLINDER HEAD GP
COVER GP-CYLINDER HEAD
2P-6530 COVER GP-CYLINDER HEAD
VALVE-MECHANISM GP
2P-6526 VALVE-MECHANISM GP
VALVE-MECHANISM GP
2P-6526 VALVE-MECHANISM GP
VALVE MECHANISM GP
7N-8026 VALVE MECHANISM GP

Truck sale:

1979 CAT 637D
Call 
1979 CAT 637D

SEATTLE TRACTOR INT'L
Ravensdale, Washington
1976 CAT 637D
Call 
1976 CAT 637D

SEATTLE TRACTOR INT'L
Ravensdale, Washington
1978 CAT 637D
Call 
1978 CAT 637D

SEATTLE TRACTOR INT'L
Ravensdale, Washington
1978 CAT 637D
Call 
1978 CAT 637D

SEATTLE TRACTOR INT'L
Ravensdale, Washington
1979 CAT 637D
Call 
1979 CAT 637D

SEATTLE TRACTOR INT'L
Ravensdale, Washington
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