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Caterpillar 393-7919 Boom Cylinder Seal Kit
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| Kit Type | Boom Cylinder Seal Kit |
|---|---|
| Seal Material | NBR / PTFE Composite |
| Operating Pressure | 35 MPa (5000 PSI) |
| Temperature Range | -30°C to +110°C |
| Applications | Hydraulic Cylinder Repair |
| Net Weight | 0.85 kg |
| Package Dimensions | 22 × 16 × 10 cm |
Manufacturer No.
- 393-7919
- 3937919
- CA3937919
OEM Part No.
- 393-7919
- 3937919
Engine Part No.
- Caterpillar C4.2
- Caterpillar C3.4B
Fitment Vehicles
- Caterpillar 311DLRR
- Caterpillar 311FLRR
Technical specification for Caterpillar boom cylinder seal kit part number 393-7919. This kit contains all necessary seals for a complete reseal of the boom cylinder on specified excavator models. Designed to meet OEM engineering standards for pressure retention and wear resistance in hydraulic systems.
Compatible with Caterpillar engines C4.2 and C3.4B. Direct application for excavator models 311DLRR and 311FLRR. Cross-references include CA3937919 and 3937919. Kit includes piston seals, rod seals, buffer seals, wear rings, and O-rings required for boom cylinder overhaul.
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