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386-4566 COVER GP-VALVE MECHANISM PART OF 450-3215 ENGINE AR-PRIMARY ALSO AN ATTACHMENT 303.5E2 MINI HYD EXCAVATOR


BASIC ENGINE
VALVE MECHANISM GP
CRANKSHAFT GP
CYLINDER BLOCK GP
CYLINDER HEAD GP
PAN GP-OIL
FLYWHEEL GP
COOLING SYSTEM
FAN GP

MINI HYD EXCAVATOR 303.5E2 MINI HYD EXCAVATOR JWY
 303.5E2 Mini Hydraulic Excavator JWY00001-UP (MACHINE) POWERED BY C1.7 Engine SEBP7633 303.5E2 JWY   (2015)

BASIC ENGINE

VALVE MECHANISM GP
COVER GP-VALVE MECHANISM
386-4566 COVER GP-VALVE MECHANISM
COVER GP-VALVE MECHANISM
543-9480 COVER GP-VALVE MECHANISM
VALVE MECHANISM GP
464-6974 VALVE MECHANISM GP
 

#SEBP76330040
 

386-4566: COVER GP-VALVE MECHANISM

386-4566 COVER GP-VALVE MECHANISM
PART OF 450-3215 ENGINE AR-PRIMARY
ALSO AN ATTACHMENT
i05325087 SEBP7633
3864566 COVER GP-VALVE MECHANISM Parts scheme
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Parts for your 303.5E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 383-0217 [1] SEAL-O-RING  
2. 383-0321 [1] PLUG-FILLER (ENGINE OIL)  
3. 386-6930 [1] COVER AS-VALVE  
  383-0203 [4] SCREW  
  383-0382 [1] PIPE  
  383-0524 [1] COVER  
  383-0563 [1] VALVE-BREATHER  
4. 386-6933 [1] GASKET  
5. 383-0574 [8] BOLT  
6. 395-0080 [1] HOSE-BREATHER  
7. 389-1593 [2] CLAMP  
   
    PARTS SHOWN IN GRAPHIC(S) WITHOUT A REFERENCE NUMBER ARE NOT SERVICED SEPARATELY
 

#SEBP76330041
 

543-9480: COVER GP-VALVE MECHANISM

543-9480 COVER GP-VALVE MECHANISM
S/N JWY3424-UP
PART OF 543-1254 ENGINE AR-PRIMARY
ALSO AN ATTACHMENT
i07383569 SEBP7633
5439480 COVER GP-VALVE MECHANISM Parts scheme
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Parts for your 303.5E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 383-0566 [1] HOSE-BREATHER  
2. 436-0812 [2] CLAMP-HOSE  
3. 386-6930 [1] COVER AS-VALVE  
3A. 383-0203 [4] SCREW  
3B. 383-0382 [1] PIPE  
3C. 383-0524 [1] COVER  
3D. 383-0563 [1] VALVE-BREATHER  
4. 386-6933 [1] GASKET  
5. 383-0574 [8] BOLT  
6. 436-0817 [1] PLUG AS (ENGINE OIL FILLER)  
6A. 383-0217 [1] SEAL-O-RING  
 

#SEBP76330042
 

464-6996: CRANKSHAFT GP

464-6996 CRANKSHAFT GP
PART OF 450-3215, 543-1254 ENGINE AR-PRIMARY
ALSO AN ATTACHMENT
i05884891 SEBP7633
4646996 CRANKSHAFT GP Parts scheme
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Parts for your 303.5E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 383-0515 [1] GEAR AS-IDLER (79-TEETH)  
1A. 438-6413 [1] BEARING  
2. 383-0587 [1] COLLAR-GEAR CONTROL  
3. 393-7502 [2] BOLT-FLANGE HEAD  
4. 383-0400 [1] SHAFT-GEAR  
5. 393-7573 [3] BOLT-FLANGE HEAD  
6. 464-6997 [1] CRANKSHAFT AS  
6A. 383-0231 [3] BALL  
6B. 383-0393 [1] BEARING-CRANKSHAFT  
7. 383-0398 [1] PIN-STRAIGHT  
8. 464-6998 [1] GEAR  
9. 464-6999 [1] KEY  
10. 383-0292 [1] SLINGER-OIL  
11. 383-0392 [1] COLLAR-CAMSHAFT  
12. 383-0210 [1] SEAL-O-RING  
13. 383-0271 [1] NUT  
14. 383-0467 [1] BEARING-CRANKSHAFT  
15. 383-0553 [1] SEAL  
16. 383-0469 [2] BUSHING  
17. 383-0470 [2] BUSHING  
 

#SEBP76330043
 

464-6350: CYLINDER BLOCK AS

464-6350 CYLINDER BLOCK AS
PART OF 464-6970 CYLINDER BLOCK GP
ALSO AN ATTACHMENT
i05884898 SEBP7633
4646350 CYLINDER BLOCK AS Parts scheme
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Parts for your 303.5E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 383-0303 [5] PLUG  
2. 383-0304 [2] PLUG  
3. 383-0229 [1] PLUG  
4. 383-0385 [3] PLUG  
5. 383-0337 [1] PLUG  
6. 383-0260 [5] CAP  
7. 383-0261 [2] CAP  
8. 383-0218 [2] PIN  
9. 383-0219 [3] PIN  
10. 383-0220 [2] PIN  
11. 383-0221 [1] PIN  
12. 383-0272 [1] PIN  
13. 383-0358 [1] CAP  
 

#SEBP76330044
 

464-6970: CYLINDER BLOCK GP

464-6970 CYLINDER BLOCK GP
PART OF 450-3215, 543-1254 ENGINE AR-PRIMARY
ALSO AN ATTACHMENT
i05884904 SEBP7633
4646970 CYLINDER BLOCK GP Parts scheme
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Parts for your 303.5E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 464-6350 Y [1] CYLINDER BLOCK AS  
2. 383-0557 [1] PLUG  
3. 383-0256 [1] GASKET  
4. 383-0386 [1] FITTING  
5. 383-0432 [1] CASE AS  
    (EACH INCLUDES)
5A. 383-0468 [2] BEARING (STANDARD MAIN BEARINGS)  
  AB BEARING (0.20-MM US)  
  AB BEARING (0.40-MM US)  
5B. 383-0447 [2] BOLT  
6. 383-0446 [1] GASKET  
7. 383-0532 [1] COVER  
8. 383-0451 [1] GASKET  
9. 383-0174 [8] BOLT  
10. 383-0175 [8] BOLT  
11. 383-0347 [1] SEAL (REAR)  
12. 383-0457 [1] CASE AS  
    (EACH INCLUDES)
12A. 383-0468 [2] BEARING (STANDARD MAIN BEARINGS)  
  AB BEARING (0.20-MM US)  
  AB BEARING (0.40-MM US)  
12B. 383-0447 [2] BOLT  
13. 383-0458 [1] CASE AS  
    (EACH INCLUDES)
13A. 383-0468 [2] BEARING (STANDARD MAIN BEARINGS)  
  AB BEARING (0.20-MM US)  
  AB BEARING (0.40-MM US)  
13B. 383-0447 [2] BOLT  
14. 383-0305 [2] BOLT  
  A   NOT PART OF THIS GROUP
  B   USE AS REQUIRED
  Y   SEPARATE ILLUSTRATION
 

#SEBP76330045
 

464-6965: CYLINDER HEAD AS

464-6965 CYLINDER HEAD AS
PART OF 464-6964 CYLINDER HEAD GP
ALSO AN ATTACHMENT
i05884983 SEBP7633
4646965 CYLINDER HEAD AS Parts scheme
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Parts for your 303.5E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 383-0259 [9] CAP  
2. 383-0262 [1] CAP  
3. 383-0283 [2] PLUG  
4. 383-0555 [3] GUIDE-VALVE  
5. 383-0473 [3] GUIDE-VALVE  
 

#SEBP76330046
 

464-6964: CYLINDER HEAD GP

464-6964 CYLINDER HEAD GP
PART OF 450-3215, 543-1254 ENGINE AR-PRIMARY
ALSO AN ATTACHMENT
i05884901 SEBP7633
4646964 CYLINDER HEAD GP Parts scheme
  For full view, you need register

Parts for your 303.5E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 464-6965 Y [1] CYLINDER HEAD AS  
2. 383-0387 [14] BOLT  
3. 386-6921 B [1] GASKET (1.20-MM THK)  
  386-6922 [1] GASKET (1.15-MM THK)  
  386-6923 [1] GASKET (1.25-MM THK)  
  386-6924 [1] GASKET (1.30-MM THK)  
  386-6925 [1] GASKET (1.35-MM THK)  
4. 395-3381 [1] PLUG  
5. 383-0534 [3] VALVE-INLET  
6. 383-0535 [3] VALVE-EXHAUST  
7. 383-0554 [6] SPRING-VALVE  
8. 383-0265 [6] RETAINER  
9. 383-0266 [6] COLLAR  
10. 383-0263 [6] SEAL  
11. 383-0264 [6] CAP  
  B   USE AS REQUIRED
  Y   SEPARATE ILLUSTRATION
 

#SEBP76330047
 

378-2141: DRAIN GP-ENGINE OIL

378-2141 DRAIN GP-ENGINE OIL -ECOLOGY
PART OF 379-4727 DRAIN GP-OIL
AN ATTACHMENT
i05761323 SEBP7633
3782141 DRAIN GP-ENGINE OIL Parts scheme
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Parts for your 303.5E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 381-1122 [1] SHUTOFF AS (ENGINE OIL)  
  381-1123 [1] GASKET  
 

#SEBP76330048
 

464-7002: FLYWHEEL GP

464-7002 FLYWHEEL GP
PART OF 450-3215, 543-1254 ENGINE AR-PRIMARY
ALSO AN ATTACHMENT
i05884922 SEBP7633
4647002 FLYWHEEL GP Parts scheme
  For full view, you need register

Parts for your 303.5E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 464-7000 [1] FLYWHEEL AS  
1A. 383-0420 [1] GEAR-RING  
2. 383-0576 [6] BOLT  
3. 386-6938 [1] HOUSING-FLYWHEEL  
4. 383-0598 [1] COVER  
5. 383-0180 [1] BOLT  
6. 383-0207 [1] WASHER  
7. 383-0345 [11] BOLT  
 

#SEBP76330049
 

380-6386: GUARD GP-FAN

380-6386 GUARD GP-FAN
PART OF 456-2627 CANOPY AR
AN ATTACHMENT
i05844786 SEBP7633
3806386 GUARD GP-FAN Parts scheme
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Parts for your 303.5E2 MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 380-6387 [1] PLATE  
2. 6V-9189 M [2] LOCKNUT (M8X1.25-THD)  
3. 8T-4224 [2] WASHER-HARD (8.8X16X2-MM THK)  
4. 8T-7547 M [2] BOLT (M8X1.25X30-MM)  
  M   METRIC PART
 

Information:

Operation and Maintenance Manual
Engine Valve Lash - Check
303.5E2 CR, 304E2 CR, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators
Specifications
Valve Mechanism Cover
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines
Rocker Shaft
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines
Valve Mechanism
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines
Lifter Group
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines
Reuse And Salvage Guidelines
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Reuse & Salvage for Valvetrain Components {1102, 1108, 1109, 1121, 1123}
Testing and Adjusting
Engine Valve Lash - Inspect/Adjust
C1.7, C1.8, and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines
Finding Top Center Position for No. 1 Piston
C1.7, C1.8, and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines
Troubleshooting
Valve Lash Is Excessive
C1.7, C1.8, and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines
Disassembly and Assembly
Lifter Group - Remove and Install
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines
Valve Mechanism Cover - Remove and Install
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines
Rocker Shaft and Push Rod - Remove
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines
Rocker Shaft and Push Rod - Install
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines
Rocker Shaft - Disassemble
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines
Rocker Shaft - Assemble
C1.7, C1.8 and C2.4 Tier 4 Interim and EU Stage 3A Engines for Caterpillar Built Machines

Caterpillar Parts SIS Catalog 303.5E2 :

CAMSHAFT GP
557-9609 CAMSHAFT GP
CAMSHAFT GP
464-7004 CAMSHAFT GP
CAMSHAFT GP
464-6971 CAMSHAFT GP
BELT TENSIONER GP
380-6597 BELT TENSIONER GP
462-4322 INSTALLATION AR-ENGINE
452-5629 INSTALLATION AR-ENGINE
543-1254 ENGINE AR-PRIMARY
450-3215 ENGINE AR-PRIMARY
COVER GP-VALVE MECHANISM
543-9480 COVER GP-VALVE MECHANISM
CRANKSHAFT GP
464-6996 CRANKSHAFT GP
CYLINDER BLOCK AS
464-6350 CYLINDER BLOCK AS
CYLINDER BLOCK GP
464-6970 CYLINDER BLOCK GP
CYLINDER HEAD AS
464-6965 CYLINDER HEAD AS
CYLINDER HEAD GP
464-6964 CYLINDER HEAD GP
DRAIN GP-ENGINE OIL
378-2141 DRAIN GP-ENGINE OIL
FLYWHEEL GP
464-7002 FLYWHEEL GP
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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.
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