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Caterpillar 128-9277 Bucket Cylinder Seal Kit
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| Applications | Bucket Hydraulic Cylinder |
|---|---|
| Include Seals | Rod Seal, Piston Seal, Buffer Ring, Anti-Extrusion Ring, O-Ring, Dust Wiper |
| Material | NBR, FKM, PU, PTFE |
| Max Operating Pressure | 35 MPa |
| Temperature Range | -40°C to 120°C |
| Kit Contents | Complete Cylinder Reseal Components |
| Net Weight | 2.5 kg |
| Package Dimensions | 30 × 20 × 15 cm |
Manufacturer No.
- 128-9277
- 1289277
- 1680760
- 200-3572
- 1948235
- 518-5136
- 5185136
- 629-0645
- 376-4331
- 518-5138
- 3764331
- 5185138
- 1261947
- 260-5317
- 234-2593
- 0995312
- 0995310
- 0995311
OEM Part No.
- 128-9277
- 1289277
Engine Part No.
- Caterpillar C7.1 ACERT
Interchange No.
- 1680760
- 200-3572
- 1948235
- 518-5136
- 5185136
- 629-0645
- 376-4331
- 518-5138
- 3764331
- 5185138
- 1261947
- 260-5317
- 234-2593
- 0995312
- 0995310
- 0995311
Fitment Vehicles
- Caterpillar 330B
- Caterpillar 330BL
- Caterpillar 330C
- Caterpillar 330C L
- Caterpillar 330C LN
- Caterpillar 330D
- Caterpillar 330D L
- Caterpillar 330F
- Caterpillar 330 Next Gen
Technical specifications for Caterpillar 128-9277 hydraulic bucket cylinder seal kit designed for CAT 330B and 330BL series crawler excavators. The kit includes rod seals, piston seals, polyurethane buffer rings, PTFE anti-extrusion rings, FKM high-temperature O-rings, dust wipers, and all matching minor gaskets required for a complete cylinder reseal.
Material composition features nitrile rubber (NBR), fluorocarbon (FKM), polyurethane (PU), and polytetrafluoroethylene (PTFE) components engineered for hydraulic system pressures up to 35 MPa and operating temperatures from -40°C to 120°C. Direct replacement for Caterpillar OEM part numbers 128-9277 and 1289277. Cross-references aftermarket part numbers 1680760 (NOK), 200-3572, and 1948235.
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