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205-4013 PLUG GP-WATER LINES S/N TXD1-UP; THX1-UP PROVIDES CUP PLUGS FOR THE RH SIDE OF BLOCK AND PIPE PLUG AT REAR OF BLOCK IN PLACE OF A JACKET WATER HEATER PART OF 367-4852, 417-0656, 417-0657, 511-8734, 511-8735 ENGINE AR-COMPLETE CANNOT BE USED WITH JACKET WATER HEATER ALSO AN ATTACHMENT 521B




COOLING SYSTEM

LINES GP-WATER
 

#SEBP51220090
 

205-4013: PLUG GP-WATER LINES

205-4013 PLUG GP-WATER LINES
S/N TXD1-UP; THX1-UP
PROVIDES CUP PLUGS FOR THE RH SIDE OF BLOCK AND PIPE PLUG AT REAR OF BLOCK IN PLACE OF A JACKET WATER HEATER
PART OF 367-4852, 417-0656, 417-0657, 511-8734, 511-8735 ENGINE AR-COMPLETE
CANNOT BE USED WITH JACKET WATER HEATER
ALSO AN ATTACHMENT
i01521927 SEBP5122
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Parts for your 521B TRACK FELLER BUNCHER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 209-1434 [2] PLUG-CUP (73.38-MM DIA)  
2. 8T-6761 [1] PLUG-PIPE (1-11-1/2 NPT THD)  
 

#SEBP51220091
 

352-2123: PUMP AS-WATER

352-2123 PUMP AS-WATER
S/N TXD1-UP; THX1-UP
PART OF 352-2125 PUMP GP-WATER
ALSO AN ATTACHMENT
i04720258 SEBP5122
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Parts for your 521B TRACK FELLER BUNCHER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 397-1832 [1] SHAFT AS  
2. 177-1056 [1] IMPELLER-PUMP  
3. 197-9581 [1] PULLEY (8-GROOVE)  
4. 350-5417 [1] SEAL-WATER PUMP  
 

#SEBP51220092
 

202-7674: PUMP GP-WATER

202-7674 PUMP GP-WATER
S/N TXD1-UP; THX1-UP
PART OF 367-4852 ENGINE AR-COMPLETE, 384-8426, 417-6290 ENGINE AR-CORE
ALSO AN ATTACHMENT
i01847383 SEBP5122
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Parts for your 521B TRACK FELLER BUNCHER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 352-2125 CY [1] PUMP GP-WATER  
2. 147-0182 [1] SEAL-O-RING  
3. 384-9992 [1] SEAL-O-RING  
4. 8T-0644 M [4] BOLT (M10X1.5X90-MM)  
  C   CHANGE FROM PREVIOUS TYPE
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP51220093
 

352-2125: PUMP GP-WATER

352-2125 PUMP GP-WATER
S/N TXD1-UP; THX1-UP
PART OF 202-7674 PUMP GP-WATER
ALSO AN ATTACHMENT
i04451295 SEBP5122
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Parts for your 521B TRACK FELLER BUNCHER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 177-1044 [1] COVER  
2. 222-3901 [1] GASKET  
3. 352-2123 Y [1] PUMP AS-WATER  
4. 353-5126 [2] PLUG AS  
    (EACH INCLUDES)
  6V-6609 [1] SEAL-O-RING  
  9S-8005 [1] PLUG (3/4-16-THD)  
5. 6V-3918 M [4] BOLT (M8X1.25X50-MM)  
6. 9M-1974 [4] WASHER-HARD (8.8X16X2-MM THK)  
  M   METRIC PART
  R   REMANUFACTURED PART MAY BE AVAILABLE
  Y   SEPARATE ILLUSTRATION
 

#SEBP51220094
 

361-5268: RADIATOR & HYD OIL COOLER GP

361-5268 RADIATOR & HYD OIL COOLER GP
S/N F7B1-UP
PART OF 361-5267 RADIATOR & MOUNTING GP
i04463233 SEBP5122
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Parts for your 521B TRACK FELLER BUNCHER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 232-6682 [8] SLEEVE-RUBBER  
2. 504-3836 [1] CHANNEL AS-TOP  
3. 352-3851 [1] RADIATOR GP  
  148-2701 [1] CAP-RADIATOR  
4. 352-3852 [1] CORE AS-OIL COOLER (HYDRAULIC)  
5. 361-5269 [1] SHROUD AS-FAN  
6. 257-2332 [1] CORE AS-AFTERCOOLER (HYDRAULIC)  
  3J-5390 [2] PLUG (3/8-18-THD)  
7. 370-1607 [1] CHANNEL AS  
8. 370-1608 [1] CHANNEL AS  
9. 373-6579 [1] CHANNEL AS  
10. 6V-7744 M [16] LOCKNUT (M10X1.5-THD)  
11. 8T-4121 [16] WASHER-HARD (11X21X2.5-MM THK)  
12. 8T-4189 M [10] BOLT (M8X1.25X20-MM)  
13. 8T-4196 M [16] BOLT (M10X1.5X35-MM)  
14. 8T-4224 [10] WASHER-HARD (8.8X16X2-MM THK)  
15. 6V-1392 D SEAL (0.8-M)  
15A. 6V-1392 D SEAL (0.2-M)  
15B. 6V-1392 D SEAL (1.4-M EACH)  
15C. 6V-1392 D SEAL (1.0-M)  
  D   ORDER BY THE METER
  M   METRIC PART
 

#SEBP51220095
 

361-5267: RADIATOR & MOUNTING GP

361-5267 RADIATOR & MOUNTING GP
S/N F7B1-UP
PART OF 362-3898 COOLING AR
i04463264 SEBP5122
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Parts for your 521B TRACK FELLER BUNCHER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8F-8151 [1] VALVE-SHUTOFF (COOLANT DRAIN)  
2. 095-1388 [1] CLAMP-HOSE  
4. 096-4035 [3] CLIP  
6. 226-3630 [2] BRACKET  
7. 230-2780 [1] TANK GP-COOLANT  
  171-3370 [1] CAP AS (COOLANT OVERFLOW)  
  204-0920 [1] CAP AS (COOLANT FILL)  
9. 361-5268 Y [1] RADIATOR & HYD OIL COOLER GP  
10. 085-9310 [4] SPACER (16.6X32X26-MM THK)  
11. 124-1479 [5] CLIP  
13. 7X-7729 [4] WASHER (11X25X3-MM THK)  
14. 8T-4121 [7] WASHER-HARD (11X21X2.5-MM THK)  
15. 8T-4136 M [6] BOLT (M10X1.5X25-MM)  
16. 8T-4139 M [4] BOLT (M12X1.75X30-MM)  
17. 8T-4186 M [2] BOLT (M10X1.5X40-MM)  
18. 8T-4193 M [4] BOLT (M16X2X50-MM)  
19. 8T-4223 [4] WASHER-HARD (13.5X25.5X3-MM THK)  
20. 5P-0767 E HOSE (35-CM)  
21. 7Y-1976 E HOSE-WATER (51-CM)  
21A. 7Y-1976 E HOSE-WATER (201-CM)  
22. 5P-9299 [1] CLIP (LOOP)  
23. 8T-4137 M [1] BOLT (M10X1.5X20-MM)  
24. 385-4660 [1] CORE AS  
25. 438-3237 [1] BRACKET AS  
26. 8T-4133 M [2] NUT (M10X1.5-THD)  
  E   ORDER BY THE CENTIMETER
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP51220096
 

317-9524: AIR CLEANER GP

317-9524 AIR CLEANER GP
S/N F7B1-UP
PART OF 367-2129 AIR CLEANER GP
i03161541 SEBP5122
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Parts for your 521B TRACK FELLER BUNCHER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 116-5763 [12] CLIP-SPRING  
2. 290-1935 [1] FILTER ELEMENT AS-AIR (PRIMARY)  
3. 290-1936 [1] FILTER ELEMENT AS-AIR (SECONDARY)  
4. 290-1937 [1] COVER AS-AIR CLEANER  
4A. 290-1938 [4] LATCH  
 

#SEBP51220097
 

367-2129: AIR CLEANER GP

367-2129 AIR CLEANER GP
S/N F7B1-311
PART OF 367-2135 INSTALLATION AR-ENGINE
i04464213 SEBP5122
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Parts for your 521B TRACK FELLER BUNCHER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8U-6668 [1] VALVE  
2. 178-2593 [2] BUMPER  
3. 145-4212 [1] INDICATOR-AIR FILTER CHANGE  
4. 187-8703 [1] HOSE-ELBOW  
5. 188-2030 [1] HOSE-ELBOW  
6. 317-9524 Y [1] AIR CLEANER GP  
7. 393-5559 [1] TUBE  
8. 394-7565 [1] PLATE  
9. 394-7566 [1] TUBE AS  
10. 394-7569 [1] PLATE AS  
11. 425-9278 [1] BRACKET AS  
12. 169-6713 [1] ADAPTER AS  
  7J-0204 [1] SEAL-O-RING  
13. 209-4590 [1] CLAMP-T BOLT  
14. 220-4126 [1] CLAMP  
15. 240-2651 [2] CLAMP  
16. 4M-8973 [1] ELBOW  
17. 5C-7261 M [1] NUT (M8X1.25-THD)  
18. 7X-7729 [6] WASHER (11X25X3-MM THK)  
19. 8T-4121 [16] WASHER-HARD (11X21X2.5-MM THK)  
20. 8T-4136 M [6] BOLT (M10X1.5X25-MM)  
21. 8T-4137 M [4] BOLT (M10X1.5X20-MM)  
22. 8T-4195 M [4] BOLT (M10X1.5X30-MM)  
23. 8T-4196 M [6] BOLT (M10X1.5X35-MM)  
24. 8T-4224 [10] WASHER-HARD (8.8X16X2-MM THK)  
25. 8T-4908 M [6] BOLT (M8X1.25X25-MM)  
26. 5P-5902 D SEAL (1.1-M)  
27. 6V-9335 D SEAL (1.7-M)  
28. 422-8946 [1] PLATE  
29. 8T-7547 M [2] BOLT (M8X1.25X30-MM)  
  D   ORDER BY THE METER
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP51220098
 

367-2129: AIR CLEANER GP

367-2129 AIR CLEANER GP
S/N F7B312-UP
PART OF 367-2135 INSTALLATION AR-ENGINE
i06144797 SEBP5122
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Parts for your 521B TRACK FELLER BUNCHER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 8U-6668 [1] VALVE  
2. 178-2593 [1] BUMPER  
3. 145-4212 [1] INDICATOR-AIR FILTER CHANGE  
4. 187-8703 [1] HOSE-ELBOW  
5. 188-2030 [1] HOSE-ELBOW  
6. 317-9524 Y [1] AIR CLEANER GP  
7. 393-5559 [1] TUBE  
9. 394-7566 [1] TUBE AS  
10. 394-7569 [1] PLATE AS  
11. 425-9278 [1] BRACKET AS  
12. 169-6713 [1] ADAPTER AS  
  [1] ADAPTER  
  7J-0204 [1] SEAL-O-RING  
13. 209-4590 [1] CLAMP-T BOLT  
14. 220-4126 [1] CLAMP  
15. 240-2651 [2] CLAMP  
16. 4M-8973 [1] ELBOW  
17. 5C-7261 M [1] NUT (M8X1.25-THD)  
18. 7X-7729 [6] WASHER (11X25X3-MM THK)  
19. 8T-4121 [16] WASHER-HARD (11X21X2.5-MM THK)  
20. 8T-4136 M [6] BOLT (M10X1.5X25-MM)  
21. 8T-4137 M [4] BOLT (M10X1.5X20-MM)  
22. 8T-4195 M [4] BOLT (M10X1.5X30-MM)  
23. 8T-4196 M [6] BOLT (M10X1.5X35-MM)  
24. 8T-4224 [8] WASHER-HARD (8.8X16X2-MM THK)  
25. 8T-4908 M [2] BOLT (M8X1.25X25-MM)  
26. 5P-5902 D SEAL (1.1-M)  
27. 6V-9335 CD SEAL (2.6-M)  
28. 422-8946 [1] PLATE  
29. 8T-7547 M [2] BOLT (M8X1.25X30-MM)  
30. 458-1019 C [1] TUBE AS  
31. 226-2111 C [1] PRECLEANER AS  
  216-2212 [1] CLAMP  
32. 8T-4189 M [4] BOLT (M8X1.25X20-MM)  
  C   CHANGE FROM PREVIOUS TYPE
  D   ORDER BY THE METER
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP51220099
 

235-5507: CARTRIDGE GP-TURBOCHARGER

235-5507 CARTRIDGE GP-TURBOCHARGER
S/N TXD1-UP; THX1-UP
PART OF 250-7700 TURBOCHARGER GP
ALSO AN ATTACHMENT
i06862155 SEBP5122
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Parts for your 521B TRACK FELLER BUNCHER:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 206-6461 [1] PISTON-RING  
2. 510-3597 [1] NUT (M8X1.25-THD, LH)  
3. 7C-6658 [1] RING-RETAINING  
4. 510-3670 [1] INSERT  
5. 7C-5828 [1] SEAL-O-RING  
6. 206-6459 [1] PISTON RING  
7. 510-3683 [1] SLEEVE-FLINGER  
8. 206-6460 [1] SLEEVE-THRUST  
9. 156-0516 [1] BEARING-THRUST  
10. 510-3705 [1] DEFLECTOR-OIL  
11. 164-9414 [2] BEARING-JOURNAL  
12. 4P-9807 [4] RING-RETAINING  
 

Information:

Engine News
Operation and Maintenance Manual
Cooling System Hoses - Inspect
521B and 522B Track Feller Bunchers
Cooling System Coolant Sample (Level 1) - Obtain
521B and 522B Track Feller Bunchers
Cooling System Water Temperature Regulator - Replace
521B and 522B Track Feller Bunchers
Cooling System Coolant Sample (Level 2) - Obtain
521B and 522B Track Feller Bunchers
Specifications
Water Temperature Regulator
C9 Engines for Caterpillar Built Machines
Water Lines
C9 Engines for Caterpillar Built Machines
Systems Operation
Oil Coolers and Cooling System Operation
521B and 522B Track Feller Bunchers Machine Systems
Disassembly and Assembly
Water Temperature Regulator - Remove and Install
C9 Engines for Caterpillar Built Machines
Water Temperature Regulator - Remove and Install - Engine In Chassis
521B and 522B Track Feller Bunchers Engine Supplement
Service Magazine

Caterpillar Parts SIS Catalog 521B :

Truck sale:

 
Caterpillar 521B
- Knuckleboom loaders
ZIEGLER CAT
 
Caterpillar 521B
- Feller Bunchers
MILTON CAT
 
Caterpillar 521B
- Feller Bunchers
MILTON CAT
 
Caterpillar 521B
- Feller Bunchers
PETERSON CAT
 
CATERPILLAR 521B 2015
- FORESTRY - FELLER BUNCHERS - TRACK
MICHIGAN CAT
US (Mid, North), Canada, ON West: John Kinney; US (NE, SE, SW), Canada QU East, AUS: Bill Dowd;
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