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279-4699 PUMP GP-GEAR -PILOT PART OF 416-5057 PUMP GP-PISTON 304E MINI HYD EXCAVATOR


HYDRAULIC SYSTEM
PUMP GP
SWIVEL GP
TANK GP
MOUNTING GP
VALVE GP-BANK
VALVE GP-CONTROL

MINI HYD EXCAVATOR 304E MINI HYD EXCAVATOR TTN
 304E Mini Hydraulic Excavator TTN00001-UP (MACHINE) SEBP5979 304E TTN   (2012)

HYDRAULIC SYSTEM

PUMP GP
378-2500 CONTROL AR-HYDRAULIC
378-2501 CONTROL AR-HYDRAULIC
PUMP & MTG GP-MAIN HYDRAULIC
376-2013 PUMP & MTG GP-MAIN HYDRAULIC
PUMP & MTG GP-MAIN HYDRAULIC
376-2013 PUMP & MTG GP-MAIN HYDRAULIC
279-4699 PUMP GP-GEAR
PUMP GP-PISTON
416-5057 PUMP GP-PISTON
VALVE GP-PUMP CONTROL
279-4712 VALVE GP-PUMP CONTROL
VALVE GP-PUMP CONTROL
332-1293 VALVE GP-PUMP CONTROL
VALVE GP-SOLENOID & MANIFOLD
358-2091 VALVE GP-SOLENOID & MANIFOLD
 

#SEBP59790250
 

279-4699: PUMP GP-GEAR

279-4699 PUMP GP-GEAR -PILOT
PART OF 416-5057 PUMP GP-PISTON
i03997877 SEBP5979
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Parts for your 304E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
    (NO SERVICED PARTS)
 

#SEBP59790251
 

416-5057: PUMP GP-PISTON

416-5057 PUMP GP-PISTON -MAIN HYDRAULIC
PART OF 376-2013 PUMP & MTG GP-MAIN HYDRAULIC
i05049594 SEBP5979
4165057 PUMP GP-PISTON Parts scheme 4165057 PUMP GP-PISTON Parts scheme
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Parts for your 304E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 280-4441 [1] BEARING  
2. 191-3925 [1] BEARING  
3. 279-4684 [1] SEAL  
4. 6V-7723 [1] RING-RETAINING  
5. 280-4442 [1] STOP  
6. 280-4443 [1] SHAFT  
7. 191-3918 [1] WASHER  
8. 191-3920 [1] WASHER  
9. 280-4444 [1] GASKET  
10. 279-4687 [3] PIN  
11. 095-1571 [1] SEAL-O-RING  
12. 390-9455 [2] BUSHING  
13. 139-7355 [2] SCREW  
14. 280-4446 [1] PLATE  
15. 279-4692 [1] STOPPER  
16. 379-3533 [1] PIN  
17. 095-1575 J [8] SEAL-O-RING  
18. 279-4691 [1] ORIFICE  
19. 416-5058 [1] SPRING  
20. 416-5059 [1] SPRING  
21. 280-4450 [2] SEAT  
22. 095-1587 [1] SEAL-O-RING  
23. 099-7197 [1] PLUG  
24. 095-1582 [1] SEAL-O-RING  
25. 279-4698 [1] NUT  
26. 279-4699 Y [1] PUMP GP-GEAR (PILOT)  
27. 303-4492 [2] BOLT  
28. 8T-4224 [2] WASHER-HARD (8.8X16X2-MM THK)  
29. 6V-8200 M [4] BOLT-SOCKET HEAD (M12X1.75X35-MM)  
30. 279-4706 [3] PLUG  
31. 095-1584 [1] SEAL-O-RING  
32. 3J-1907 J [4] SEAL-O-RING  
33. 6V-5683 M [4] BOLT (M6X1X16-MM)  
34. 279-4693 [1] PIN  
35. 279-4705 J [1] SEAL-O-RING  
36. 279-4701 J [1] SEAL-O-RING  
37. 279-4704 [1] ORIFICE  
38. 279-4703 J [1] SEAL-O-RING  
39. 280-4451 [1] PIN  
40. 279-4697 [1] VALVE AS-PUMP (MAIN HYDRAULIC)  
  095-1575 [1] SEAL-O-RING  
  095-1582 [1] SEAL-O-RING  
  095-1587 [1] SEAL-O-RING  
  099-7197 [1] PLUG  
41. 280-4458 [1] KIT-SWASHPLATE (PISTON PUMP)  
42. 280-4459 [1] KIT-BARREL (PISTON PUMP)  
43. 332-1293 Y [1] VALVE GP-PUMP CONTROL (303.5C CR)(MAIN HYDRAULIC)  
   
    AVAILABLE REPAIR KIT(S):
  279-4707 J [1] KIT-SEAL (MAIN HYDRAULIC PUMP)  
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP59790252
 

191-7516: SWIVEL GP

191-7516 SWIVEL GP
PART OF 344-8863 LINES GP-TRAVEL MOTOR
AN ATTACHMENT
i01631480 SEBP5979
1917516 SWIVEL GP Parts scheme
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Parts for your 304E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 095-8051 [3] PLUG  
2. 146-4875 [1] SEAL-BACK UP  
3. 146-4877 [1] SEAL-DUST  
4. 169-1134 [1] FLANGE  
5. 169-1135 [1] RING  
6. 193-5330 [7] SEAL AS  
7. 221-0936 [1] SHAFT  
8. 221-0937 [1] HOUSING  
9. 221-0938 [1] PIN  
10. 095-1623 [1] SEAL-O-RING  
11. 095-1710 [1] SEAL-O-RING  
12. 095-1713 [1] SEAL-O-RING  
13. 095-7951 [1] RING-RETAINING  
14. 095-9397 [4] LOCKWASHER  
15. 8T-4195 M [4] BOLT (M10X1.5X30-MM)  
  M   METRIC PART
 

#SEBP59790253
 

266-6836: SWIVEL GP

266-6836 SWIVEL GP
PART OF 344-8864 LINES GP-TRAVEL MOTOR
AN ATTACHMENT
i03971153 SEBP5979
2666836 SWIVEL GP Parts scheme
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Parts for your 304E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 274-3344 [1] SHAFT  
2. 274-3346 [1] HOUSING  
3. 294-1868 [1] COVER  
4. 274-3349 [1] SPACER  
5. 169-1136 [1] PIN  
6. 274-3351 [6] SEAL AS  
7. 193-5330 [4] SEAL AS  
8. 095-1623 [1] SEAL-O-RING  
9. 095-1713 [2] SEAL-O-RING  
10. 8T-5376 [1] SEAL-O-RING  
11. 146-4875 [1] SEAL-BACK UP  
12. 146-4877 [1] SEAL-DUST  
13. 095-0929 [1] RING-RETAINING  
14. 9X-6032 M [4] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
15. 095-0966 [5] PLUG  
  M   METRIC PART
 

#SEBP59790254
 

367-1050: TANK & FILTER GP-HYDRAULIC

367-1050 TANK & FILTER GP-HYDRAULIC
PART OF 367-0936 TANK & MTG GP-HYDRAULIC
i04629815 SEBP5979
3671050 TANK & FILTER GP-HYDRAULIC Parts scheme 3671050 TANK & FILTER GP-HYDRAULIC Parts scheme
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Parts for your 304E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 4I-3745 [1] CAP-PRESSURE (HYDRAULIC TANK)  
2. 093-5537 [1] VALVE AS-CHECK (HYDRAULIC TANK)  
3. 225-3697 [1] SPRING  
4. 265-8631 [1] COVER AS  
5. 265-8632 [1] COVER  
6. 265-8677 [1] VALVE AS-PRESSURE (HYDRAULIC OIL)  
7. 285-1951 [1] STRAINER-SUCTION (HYDRAULIC TANK)  
8. 304-7196 [1] FILTER ELEMENT-OIL (HYDRAULIC)  
9. 347-6081 Y [1] GAUGE GP-SIGHT (HYDRAULIC OIL LEVEL)  
10. 367-1051 [1] TANK AS-HYDRAULIC  
11. 095-1717 [2] SEAL-O-RING  
12. 148-8410 [1] PLUG AS  
  2M-9780 [1] SEAL-O-RING  
  9S-4190 [1] PLUG-O-RING (7/8-14-THD)  
13. 6D-3479 [1] CLIP (LOOP)  
14. 8T-4121 [8] WASHER-HARD (11X21X2.5-MM THK)  
15. 8T-4136 M [8] BOLT (M10X1.5X25-MM)  
16. 7Y-1976 E HOSE-WATER (108-CM)  
  E   ORDER BY THE CENTIMETER
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP59790255
 

367-0936: TANK & MTG GP-HYDRAULIC

367-0936 TANK & MTG GP-HYDRAULIC
PART OF 379-4678 HYDRAULIC AR
i04629813 SEBP5979
3670936 TANK & MTG GP-HYDRAULIC Parts scheme
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Parts for your 304E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 367-1050 Y [1] TANK & FILTER GP-HYDRAULIC  
2. 7X-7729 [4] WASHER (11X25X3-MM THK)  
3. 8T-4195 M [4] BOLT (M10X1.5X30-MM)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP59790256
 

421-2717: VALVE & MOUNTING GP

421-2717 VALVE & MOUNTING GP -CANOPY
S/N TTN907-UP
PART OF 383-5926 CANOPY AR, 377-8932 CANOPY AR-OPEN ROPS
AN ATTACHMENT
i05023351 SEBP5979
4212717 VALVE & MOUNTING GP Parts scheme
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Parts for your 304E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 101-7404 M [2] BOLT-SOCKET HEAD (M10X1.5X30-MM)  
2. 438-8362 [1] VALVE GP-PILOT (CANOPY)  
  M   METRIC PART
 

#SEBP59790257
 

379-4703: VALVE & MTG GP-BANK

379-4703 VALVE & MTG GP-BANK
S/N TTN1-307
PART OF 377-8915 BLADE AR-STRAIGHT
AN ATTACHMENT
i04623151 SEBP5979
3794703 VALVE & MTG GP-BANK Parts scheme
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Parts for your 304E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 379-0417 Y [1] VALVE GP-MAIN CONTROL  
2. 381-1119 [1] SUPPORT AS  
  7T-1099 [1] LINK  
  8T-3490 M [2] NUT-WELD (M10X1.5-THD)  
3. 7X-7729 [4] WASHER (11X25X3-MM THK)  
4. 8T-4121 [5] WASHER-HARD (11X21X2.5-MM THK)  
5. 8T-4136 M [4] BOLT (M10X1.5X25-MM)  
6. 8T-4191 M [1] BOLT (M10X1.5X16-MM)  
7. 8T-4195 M [4] BOLT (M10X1.5X30-MM)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP59790258
 

379-4703: VALVE & MTG GP-BANK

379-4703 VALVE & MTG GP-BANK
S/N TTN308-UP
PART OF 377-8915 BLADE AR-STRAIGHT
AN ATTACHMENT
i05349284 SEBP5979
3794703 VALVE & MTG GP-BANK Parts scheme
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Parts for your 304E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 393-7632 CY [1] VALVE GP-MAIN CONTROL  
2. 381-1119 [1] SUPPORT AS  
  7T-1099 [1] LINK  
  8T-3490 M [2] NUT-WELD (M10X1.5-THD)  
3. 7X-7729 [4] WASHER (11X25X3-MM THK)  
4. 8T-4121 [5] WASHER-HARD (11X21X2.5-MM THK)  
5. 8T-4136 M [4] BOLT (M10X1.5X25-MM)  
6. 8T-4191 M [1] BOLT (M10X1.5X16-MM)  
7. 8T-4195 M [4] BOLT (M10X1.5X30-MM)  
  C   CHANGE FROM PREVIOUS TYPE
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

#SEBP59790259
 

377-8861: VALVE & MTG GP-CONTROL

377-8861 VALVE & MTG GP-CONTROL -AUXILIARY, BOOM SWING
PART OF 379-4680 CONTROL AR-AUXILIARY
i04589435 SEBP5979
3778861 VALVE & MTG GP-CONTROL Parts scheme
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Parts for your 304E MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 267-0424 Y [2] MANIFOLD & SOLENOID GP-CONTROL (AUXILIARY, BOOM SWING)  
2. 282-2310 [1] BRACKET AS  
  8T-3490 M [2] NUT-WELD (M10X1.5-THD)  
3. 353-4402 [2] ADAPTER AS  
4. 379-2000 [1] BRACKET AS  
  8T-3490 M [2] NUT-WELD (M10X1.5-THD)  
5. 148-8325 [3] CONNECTOR AS  
    (EACH INCLUDES)
  3J-1907 [1] SEAL-O-RING  
  4J-5477 [1] SEAL-O-RING  
  6V-8641 [1] CONNECTOR  
6. 148-8351 [1] ELBOW AS  
  4J-5477 [1] SEAL-O-RING  
  6V-9849 [1] ELBOW  
7. 148-8368 [3] ELBOW AS  
    (EACH INCLUDES)
  3J-1907 [1] SEAL-O-RING  
  4J-5477 [1] SEAL-O-RING  
  6V-8627 [1] ELBOW  
8. 8T-4121 [4] WASHER-HARD (11X21X2.5-MM THK)  
9. 8T-4137 M [4] BOLT (M10X1.5X20-MM)  
10. 8T-4200 M [4] BOLT (M8X1.25X16-MM)  
11. 8T-4224 [4] WASHER-HARD (8.8X16X2-MM THK)  
  M   METRIC PART
  Y   SEPARATE ILLUSTRATION
 

Information:

Special Instruction
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}
Specifications
Main Hydraulic Pump
303.5E CR and 304E CR Mini Hydraulic Excavators Machine System Specifications
Tool Operating Manual
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
4C-9910 Portable Hydraulic Tester (Flow 125 GPM) {0599, 0784, 5050, 5057, 5095}
Systems Operation
Main Hydraulic Pump
303.5E CR and 304E CR Mini Hydraulic Excavators Hydraulic System
Pump Control (Main Hydraulic)
303.5E CR and 304E CR Mini Hydraulic Excavators Hydraulic System
Reuse And Salvage Guidelines
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Vane Type Hydraulic Pumps {5055}
Vane Type Hydraulic Pumps {5055}
Repair Process for Hydraulic Gear Pumps {5073}
Repair Process for Hydraulic Gear Pumps {5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 9, 10, and 11) {5061, 506G, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Specifications and Reusability for Hydraulic Gear Pumps and Motors (Groups 1, 2, and 3) {5061, 5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
Removing and Installing Bushings and Pressure Plates in Hydraulic Gear Pumps {5073}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
General Reuse and Salvage Guideline for Hydraulic Piston Pumps and Motors {5058, 5070}
Testing and Adjusting
Main Hydraulic Pump Air - Purge
303.5E CR and 304E CR Mini Hydraulic Excavators Hydraulic System
Swing Speed and Overswing on Level Ground - Check
303.5E CR and 304E CR Mini Hydraulic Excavators Hydraulic System
Swing Speed and Swing Drift on a Slope - Check
303.5E CR and 304E CR Mini Hydraulic Excavators Hydraulic System
Main Pump (Flow) - Test
303.5E CR and 304E CR Mini Hydraulic Excavators Hydraulic System
Bench Test Procedures
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Rotating Group Adjustment Instructions for Bosch Rexroth Hydraulic Pumps and Motors {3203, 4351, 5058, 5070}
Bench Test Procedure for Gear Pumps {5073}
Bench Test Procedure for Gear Pumps {5073}
Bench Test Procedure for Vane Pumps {5055}
Bench Test Procedure for Vane Pumps {5055}
Bench Test Procedure for Hydraulic Piston Pumps {5070, 5070}
Bench Test Procedure for Hydraulic Piston Pumps {5070, 5070}
Disassembly and Assembly
Main Hydraulic Pump - Disassemble
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Main Hydraulic Pump - Remove
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Main Hydraulic Pump - Install
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Main Hydraulic Pump - Assemble
303E CR, 303.5E, 304E, 305.5E and 305E Mini Hydraulic Excavators Machine Systems
Service Magazine
A New Hydraulic Pump Coupling Is Now Used on Certain E Series Mini Hydraulic Excavators {5070}
A New Hydraulic Pump Coupling Is Now Used on Certain E Series Mini Hydraulic Excavators {5070}

Caterpillar Parts SIS Catalog 304E :

PUMP & MTG GP-MAIN HYDRAULIC
376-2013 PUMP & MTG GP-MAIN HYDRAULIC
PUMP & MTG GP-MAIN HYDRAULIC
376-2013 PUMP & MTG GP-MAIN HYDRAULIC
PLUG GP
438-4859 PLUG GP
PLANETARY GP-SWING DRIVE
280-2355 PLANETARY GP-SWING DRIVE
MOTOR GP-SWING
281-3052 MOTOR GP-SWING
MOTOR & MTG GP-SWING
265-8752 MOTOR & MTG GP-SWING
MANIFOLD GP-CONTROL
274-4199 MANIFOLD GP-CONTROL
MANIFOLD & SOLENOID GP-CONTROL
267-0424 MANIFOLD & SOLENOID GP-CONTROL
PUMP GP-PISTON
416-5057 PUMP GP-PISTON
SWIVEL GP
191-7516 SWIVEL GP
SWIVEL GP
266-6836 SWIVEL GP
TANK & FILTER GP-HYDRAULIC
367-1050 TANK & FILTER GP-HYDRAULIC
TANK & MTG GP-HYDRAULIC
367-0936 TANK & MTG GP-HYDRAULIC
VALVE & MOUNTING GP
421-2717 VALVE & MOUNTING GP
VALVE & MTG GP-BANK
379-4703 VALVE & MTG GP-BANK
VALVE & MTG GP-BANK
379-4703 VALVE & MTG GP-BANK
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The names Cat, Caterpillar, John Deere, Komatsu, Volvo, Hitachi, Doosan, JCB, Hyundai or any other original equipment manufacturers are registered trademarks of the respective original equipment manufacturers. All names, descriptions, numbers and symbols are used for reference purposes only.
AVSpare.com is in no way associated with any of the manufacturers we have listed. All manufacturer's names and descriptions are for reference only. Cat® and Caterpillar® are registered trademarks of Caterpillar, Inc.