AVSPARE.COM
parts catalog
  1. Home
  2. Caterpillar catalog

273-7034 CYLINDER GP-BOOM S/N DWD1-UP 80-MM (3.14-IN) BORE X 894-MM (35.2-IN) STROKE PART OF 471-2654 BOOM AR 303.5E2 CR


HYDRAULIC SYSTEM
CYLINDER GP
DRIVE GP
TANK GP
HYDRAULIC GP

MINI HYD EXCAVATOR 303.5E2 CR MINI HYD EXCAVATOR CR6
 303.5E2CR Mini Hydraulic Excavator CR600001-UP (MACHINE) POWERED BY C1.7 Engine M0071196 303.5E2 CR CR6   (2016)

HYDRAULIC SYSTEM

CYLINDER GP
CYLINDER & LINES GP-BOOM
502-3493 CYLINDER & LINES GP-BOOM
CYLINDER GP-BLADE
266-6979 CYLINDER GP-BLADE
CYLINDER GP-BOOM
273-7034 CYLINDER GP-BOOM
CYLINDER GP-BUCKET
376-0170 CYLINDER GP-BUCKET
CYLINDER GP-HYDRAULIC
361-1125 CYLINDER GP-HYDRAULIC
CYLINDER GP-HYDRAULIC
485-5287 CYLINDER GP-HYDRAULIC
 

#M00711960200
 

273-7034: CYLINDER GP-BOOM

273-7034 CYLINDER GP-BOOM
S/N DWD1-UP
80-MM (3.14-IN) BORE X 894-MM (35.2-IN) STROKE
PART OF 471-2654 BOOM AR
i05008834 M0071196
2737034 CYLINDER GP-BOOM Parts scheme
  For full view, you need register

Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 265-8716 [2] BUSHING  
2. 294-7941 [1] CYLINDER AS-BOOM  
3. 278-8626 [1] ROD AS  
4. 294-7869 [1] HEAD  
5. 314-7387 [1] BUSHING  
6. 146-3916 J [1] RING  
7. 146-1086 J [1] RING  
8. 095-1709 J [2] SEAL-O-RING  
9. 237-6124 J [1] RING  
10. 095-1710 [1] SEAL-O-RING  
11. 237-6128 [1] HOLDER  
12. 237-6129 [1] SPACER (54X63.4X4-MM THK)  
13. 237-6130 [1] SEAL  
14. 237-6131 [1] COLLAR  
15. 278-8633 J [1] RING  
16. 278-8635 [1] PISTON  
17. 146-3923 J [1] SEAL AS  
18. 237-6136 J [2] RING  
19. 216-7643 M [1] SETSCREW (M8X1.25X8-MM)  
20. 146-3969 [1] BALL  
21. 278-8638 [1] BEARING  
22. 294-7943 [1] TUBE AS  
23. 219-7323 [1] SEAL  
24. 294-7951 [1] ELBOW  
25. 502-3488 [4] SEAL  
26. 3B-8489 [1] FITTING-GREASE (1/8-27 PTF)  
27. 3B-8488 [1] FITTING-GREASE (1/8-27 PTF)  
   
  237-6127 F [1] HOLDER AS  
  278-8634 F [1] PISTON AS  
  294-7868 F [1] HEAD AS  
   
    AVAILABLE REPAIR KIT(S):
  278-8641 J [1] KIT-SEAL (BOOM CYLINDER)  
  F   NOT SHOWN
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#M00711960201
 

376-0170: CYLINDER GP-BUCKET

376-0170 CYLINDER GP-BUCKET
70-MM (2.8-IN) BORE X 497.5-MM (19.6-IN) STROKE
PART OF 383-5968, 469-7641 LINKAGE AR-BUCKET
i04725136 M0071196
3760170 CYLINDER GP-BUCKET Parts scheme
  For full view, you need register

Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3B-8488 [1] FITTING-GREASE (1/8-27 PTF)  
2. 383-3206 [1] CYLINDER AS-HYDRAULIC  
2A. 265-8716 [1] BUSHING  
2B. 301-6897 [1] TUBE AS  
3. 278-9164 [1] ROD AS  
3A. 265-8716 [1] BUSHING  
4. 309-5680 H [1] HEAD  
5. 310-8780 H [1] BUSHING  
6. 212-6073 HJ [1] RING  
7. 175-4734 HJ [1] RING  
8. 095-1707 HJ [1] SEAL-O-RING  
9. 237-7078 HJ [1] RING  
10. 095-1708 HJ [1] SEAL-O-RING  
11. 237-7087 L [1] PISTON  
12. 175-4721 JL [1] SEAL AS  
13. 237-7088 JL [2] RING  
14. 216-7643 LM [1] SETSCREW (M8X1.25X8-MM)  
15. 146-3969 L [1] BALL  
17. 304-3525 N [1] PLUG  
18. 304-3526 N [2] SEAL  
19. 304-3527 N [1] BOLT  
20. 199-1148 N [1] HOLDER  
21. 192-0638 [4] SEAL  
22. 3B-8489 [1] FITTING-GREASE (1/8-27 PTF)  
   
  309-5679 FH [1] HEAD AS  
  237-7086 FL [1] PISTON AS  
  304-3524 FN [1] PLUG AS  
   
    AVAILABLE REPAIR KIT(S):
  251-9845 J [1] KIT-SEAL (BUCKET CYLINDER)  
  F   NOT SHOWN
  H   ITEMS MARKED H AVAILABLE IN HEAD AS
  J   KIT MARKED J SERVICES PART(S) MARKED J
  L   ITEMS MARKED L AVAILABLE IN PISTON AS
  M   METRIC PART
  N   ITEMS MARKED N AVAILABLE IN PLUG AS
 

#M00711960202
 

361-1125: CYLINDER GP-HYDRAULIC

361-1125 CYLINDER GP-HYDRAULIC
S/N CR61-UP
PART OF 361-1123 LOCK GP-QUICK COUPLER
AN ATTACHMENT
i04404138 M0071196
3611125 CYLINDER GP-HYDRAULIC Parts scheme
  For full view, you need register

Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 361-1078 [1] KIT-SEAL  
    (INCLUDES O-RINGS & SEALS)
2. 361-1127 [1] ROD AS  
3. 361-1128 [1] SEAL  
4. 361-1129 [1] PISTON  
5. 361-1156 [1] PISTON  
6. 361-1132 Y [1] VALVE GP-CHECK (HYDRAULIC CONTROL LOCK)  
7. 3J-1907 [1] SEAL-O-RING  
8. 9S-8004 [1] PLUG (9/16-18-THD)  
  Y   SEPARATE ILLUSTRATION
 

#M00711960203
 

485-5287: CYLINDER GP-HYDRAULIC

485-5287 CYLINDER GP-HYDRAULIC
PART OF 485-5243 LOCK GP-QUICK COUPLER
AN ATTACHMENT
i07222231 M0071196
4855287 CYLINDER GP-HYDRAULIC Parts scheme
  For full view, you need register

Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. [1] PLUG  
2. 361-1128 [1] SEAL  
3. 361-1156 [1] PISTON  
4. 479-0646 J [1] VALVE AS-COUNTERBALANCE  
5. 485-5282 [1] KIT-SEAL  
    (INCLUDES SEALS & O-RING SEALS)
6. 485-5285 [1] PISTON  
7. 485-5286 [1] ROD AS  
8. 216-8994 [1] SEAL-O-RING  
9. 6V-5192 M [1] BOLT-SOCKET HEAD (M8X1.25X30-MM)  
   
    AVAILABLE REPAIR KIT(S):
  499-9314 J KIT-SEAL (COUNTERBALANCE VALVE)  
    (INCLUDES O-RINGS & BACKUP RINGS)
  J   KIT MARKED J SERVICES PART(S) MARKED J
  M   METRIC PART
 

#M00711960204
 

273-7035: CYLINDER GP-STICK

273-7035 CYLINDER GP-STICK
S/N DWD1-UP
80-MM (3.15-IN) BORE X 498-MM (19.6-IN) STROKE
PART OF 391-8639 STICK AR
i05011714 M0071196
2737035 CYLINDER GP-STICK Parts scheme
  For full view, you need register

Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 265-8717 [2] BUSHING  
2. 285-2921 [1] CYLINDER AS-STICK  
3. 278-9122 [1] ROD AS  
4. 294-7869 [1] HEAD  
5. 237-8377 [1] BUSHING  
6. 146-3916 J [1] RING  
7. 146-1086 J [1] RING  
8. 095-1709 J [1] SEAL-O-RING  
9. 237-6124 J [1] RING  
10. 095-1710 J [1] SEAL-O-RING  
11. 237-6135 [1] PISTON  
12. 146-3923 [1] SEAL AS  
13. 237-6136 J [2] RING  
14. 216-7643 M [1] SETSCREW (M8X1.25X8-MM)  
15. 146-3969 [1] BALL  
16. 278-9127 [1] BEARING  
17. 278-9128 J [1] SEAL  
18. 278-9129 [2] STOP  
19. 278-9130 J [1] RING  
20. 192-0638 J [4] SEAL  
21. 3B-8488 [2] FITTING-GREASE (1/8-27 PTF)  
22. 285-2923 [1] PIPE AS  
23. 6V-8398 J [1] SEAL-O-RING  
   
  278-9126 F [1] CUSHION AS  
  237-6134 F [1] PISTON AS  
  294-7868 F [1] HEAD AS  
   
    AVAILABLE REPAIR KIT(S):
  279-7940 J [1] KIT-SEAL (STICK CYLINDER)  
    (KIT INCLUDES RINGS & SEALS)
  F   NOT SHOWN
  J   KIT MARKED J SERVICES PART(S) MARKED J)
  M   METRIC PART
 

#M00711960205
 

284-0863: CYLINDER GP-STICK

284-0863 CYLINDER GP-STICK
S/N CR61-UP
PART OF 500-1865 LINES AR-STICK
i04021007 M0071196
2840863 CYLINDER GP-STICK Parts scheme
  For full view, you need register

Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 265-8717 [2] BUSHING  
2. 3B-8488 [2] FITTING-GREASE (1/8-27 PTF)  
3. 278-9122 [1] ROD AS  
4. 294-7869 [1] HEAD  
5. 237-8377 [1] BUSHING  
6. 146-3916 [1] RING  
7. 146-1086 [1] RING  
8. 095-1709 [1] SEAL-O-RING  
9. 237-6124 [1] RING  
10. 095-1710 [1] SEAL-O-RING  
11. 237-6135 [1] PISTON  
12. 146-3923 [1] SEAL AS  
13. 237-6136 [2] RING  
14. 216-7643 M [1] SETSCREW (M8X1.25X8-MM)  
15. 146-3969 [1] BALL  
16. 278-9127 [1] BEARING  
17. 278-9128 [1] SEAL  
18. 278-9129 [2] STOP  
19. 278-9130 [1] RING  
20. 192-0638 [4] SEAL  
   
    AVAILABLE REPAIR KIT(S):
  279-7940 [1] KIT-SEAL (STICK CYLINDER)  
  M   METRIC PART
 

#M00711960206
 

376-0171: CYLINDER GP-SWING BOOM

376-0171 CYLINDER GP-SWING BOOM
85-MM (3.3-IN) BORE X 483-MM (19-IN) STROKE
PART OF 471-2653, 471-2654 BOOM AR
i04629818 M0071196
3760171 CYLINDER GP-SWING BOOM Parts scheme
  For full view, you need register

Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 3B-8489 [1] FITTING-GREASE (1/8-27 PTF)  
2. 382-1147 [1] CYLINDER AS-SWING BOOM  
2A. 265-8717 [1] BUSHING  
3. 278-1983 [1] ROD AS  
3A. 265-8717 [1] BUSHING  
4. 309-5902 J [1] HEAD  
5. 311-1031 J [1] BUSHING  
6. 146-3957 JL [1] RING  
7. 146-3958 JL [1] RING  
8. 095-1710 JL [1] SEAL-O-RING  
9. 237-8378 JL [1] RING  
10. 095-1711 JL [1] SEAL-O-RING  
11. 278-1985 H [1] PISTON  
12. 146-3968 HL [1] SEAL AS  
13. 278-1986 HL [2] RING  
14. 216-7643 HM [1] SETSCREW (M8X1.25X8-MM)  
15. 146-3969 H [1] BALL  
16. 192-0638 [4] SEAL  
   
  309-5903 FJ [1] HEAD AS-END  
  170-8794 F [1] RING  
  278-1990 F [1] SEAL  
  278-1988 FH [1] PISTON AS  
   
    AVAILABLE REPAIR KIT(S):
  279-0639 L [1] KIT-SEAL (SWING BOOM CYLINDER)  
  F   NOT SHOWN
  H   ITEMS MARKED H AVAILABLE IN PISTON AS
  J   ITEMS MARKED J AVAILABLE IN HEAD AS
  L   KIT MARKED L SERVICES PART(S) MARKED L
  M   METRIC PART
 

#M00711960207
 

266-6396: DRIVE GP-SWING

266-6396 DRIVE GP-SWING
PART OF 265-8752 MOTOR & MTG GP-SWING
i04019569 M0071196
2666396 DRIVE GP-SWING Parts scheme
  For full view, you need register

Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 280-2355 Y [1] PLANETARY GP-SWING DRIVE  
2. 281-3052 Y [1] MOTOR GP-SWING  
  Y   SEPARATE ILLUSTRATION
 

#M00711960208
 

347-6081: GAUGE GP-SIGHT

347-6081 GAUGE GP-SIGHT -HYDRAULIC OIL LEVEL
PART OF 367-1050 TANK & FILTER GP-HYDRAULIC
i04156660 M0071196
3476081 GAUGE GP-SIGHT Parts scheme
  For full view, you need register

Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
1. 347-6082 [2] BLOCK  
2. 236-3259 M [2] BOLT-SPECIAL  
3. 236-3257 [1] PIPE  
4. 6F-6672 [4] SEAL-O-RING  
5. 6F-4855 [4] SEAL-O-RING  
  M   METRIC PART
 

#M00711960209
 

495-9742: HYDRAULIC AR

495-9742 HYDRAULIC AR
S/N CR61-UP
PART OF 499-4795 COMMON AR
i06679602 M0071196
  For full view, you need register

Parts for your 303.5E2 CR MINI HYD EXCAVATOR:

CATERPILLAR SIS
Pos. Part No Qty Parts name Comments
  467-8310 Y [1] LINES GP-FRONT (BOOM CYLINDER)  
  495-9743 Y [1] LINES GP-FRONT (BUCKET, STICK CYLINDER)  
  467-5543 Y [1] LINES GP-HYDRAULIC PUMP  
  467-5533 Y [1] LINES GP-PILOT (BLADE CONTROL)  
  467-5535 Y [1] LINES GP-PILOT (AUXILIARY)  
  Y [1] LINES GP-SWING CYLINDER (BOOM)  
  467-3059 Y [1] PUMP & MTG GP-MAIN HYDRAULIC  
  Y [1] TANK & MTG GP-HYDRAULIC  
  Y   SEPARATE ILLUSTRATION
 

Information:

Special Instruction
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
Instructions for Installation of Oversize Hydraulic Cylinder Seals {7555, 7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
Procedure to Test the Position Sensor of a Hydraulic Cylinder {1439, 7562}
Specifications
Swing Boom Cylinder
303.5E2 CR, 304.5E2 CR, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Machine System Specifications
Stick Cylinder
303.5E2 CR, 304.5E2 CR, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Machine System Specifications
Bucket Cylinder
303.5E2 CR, 304.5E2 CR, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Machine System Specifications
Blade Lift Cylinder
303.5E2 CR, 304.5E2 CR, 305E2 CR and 305.5E2 CR Mini Hydraulic Excavators Machine System Specifications
Systems Operation
Cylinders (Boom, Stick and Bucket)
303.5E2 CR, 304E2 CR, 305E2 CR, and 305.5E2 CR
Blade Hydraulic System
303.5E2 CR, 304E2 CR, 305E2 CR, and 305.5E2 CR
Reuse And Salvage Guidelines
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Repair Process {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Inspection and Salvage of Hydraulic Cylinder Components {7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Measuring Bores and Installing Seals in Standard and Oversized Hydraulic Cylinders {5100, 7562}
Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}
Machining the O-ring Groove into the Face of Oversized Bolted Head Hydraulic Cylinders {0677, 5100, 7562}
Contamination Control Guidelines
Hydraulic Cylinder Honing {7562}
Hydraulic Cylinder Honing {7562}
Applied Failure Analysis
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Hydraulic Cylinder Seal Failure Analysis {7555, 7562}
Testing and Adjusting
Cylinder Drift - Check
303.5E2 CR, 304E2 CR, 305E2 CR, and 305.5E2 CR Mini Hydraulic Excavators Machine Systems
Cylinder Speed - Check
303.5E2 CR, 304E2 CR, 305E2 CR, and 305.5E2 CR Mini Hydraulic Excavators Machine Systems
Bench Test Procedures
Testing Hydraulic Cylinders Using the <NOBR>188-3926</NOBR> Caterpillar Cylinder Tester and the <NOBR> 9U-6803</NOBR> Caterpillar Cylinder Tester {0784, 7562}
Testing Hydraulic Cylinders Using the 188-3926 Caterpillar Cylinder Tester and the 9U-6803 Caterpillar Cylinder Tester {0784, 7562}
Disassembly and Assembly
Stick Cylinder - Remove and Install
303.5E2, 304E2, 305E2 and 305.5E2 Mini Excavator Machine Systems
Boom Cylinder - Remove and Install
303.5E2, 304E2, 305E2 and 305.5E2 Mini Excavator Machine Systems
Blade Cylinder - Remove and Install
303.5E2, 304E2, 305E2 and 305.5E2 Mini Excavator Machine Systems
Bucket Cylinder - Remove and Install
303.5E2, 304E2, 305E2 and 305.5E2 Mini Excavator Machine Systems
Swing Boom Cylinder - Remove and Install
303.5E2, 304E2, 305E2 and 305.5E2 Mini Excavator Machine Systems
Service Magazine
Compatible Puller Stud and Hydraulic Cylinder Capacity Chart {0599, 7000, 7562}
Compatible Puller Stud and Hydraulic Cylinder Capacity Chart {0599, 7000, 7562}

Caterpillar Parts SIS Catalog 303.5E2 CR :

CYLINDER GP-BLADE
266-6979 CYLINDER GP-BLADE
CYLINDER & LINES GP-BOOM
502-3493 CYLINDER & LINES GP-BOOM
500-1911 CONTROL AR-COUPLER
500-1870 CONTROL AR-COUPLER
500-1869 CONTROL AR-AUXILIARY
500-1868 CONTROL AR-AUXILIARY
500-1867 CONTROL AR-AUXILIARY
469-1081 UNDERCARRIAGE AR
CYLINDER GP-BUCKET
376-0170 CYLINDER GP-BUCKET
CYLINDER GP-HYDRAULIC
361-1125 CYLINDER GP-HYDRAULIC
CYLINDER GP-HYDRAULIC
485-5287 CYLINDER GP-HYDRAULIC
CYLINDER GP-STICK
273-7035 CYLINDER GP-STICK
CYLINDER GP-STICK
284-0863 CYLINDER GP-STICK
CYLINDER GP-SWING BOOM
376-0171 CYLINDER GP-SWING BOOM
DRIVE GP-SWING
266-6396 DRIVE GP-SWING
GAUGE GP-SIGHT
347-6081 GAUGE GP-SIGHT
Back to top
Contacts Request list Affiliate disclosure
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.