The aftermarket part 991/00110 is a boom hydraulic cylinder seal kit designed for servicing and rebuilding boom cylinders in construction machinery. The 60×110 mm seal set ensures proper hydraulic sealing, maintains operating pressure, and protects against oil leakage and contamination.
Applications:
|
Brand (Machine Type)
|
Example Ram Application
|
|
JCB (Backhoe Loaders) |
Boom ram, Dipper ram on 3CX, 4CX |
|
JCB (Excavators) |
Dozer blade ram on JS130W, JS145W, JS160W, JS175W, JZ70 |
|
JCB (Loaders) |
Lift and tilt rams on wheel loaders and telehandlers |
The list above is for reference. Before purchasing, we recommend verifying the dimensions (rod and cylinder diameter) on your machine.
Function and Benefits:
– Provides effective piston and rod sealing.
– Prevents hydraulic oil leakage and pressure loss.
– Protects internal components from dirt and moisture.
– Ideal for professional hydraulic cylinder repair and overhaul.
Specifications:
– Reference / OEM number: 991/00110
– Type: Hydraulic cylinder seal kit (boom)
– Working dimensions: 60 × 110 mm
Data sheet
Specific References
Manufacturer
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The aftermarket part 991/00110 is a boom hydraulic cylinder seal kit designed for servicing and rebuilding boom cylinders in construction machinery. The 60×110 mm seal set ensures proper hydraulic sealing, maintains operating pressure, and protects against oil leakage and contamination.

















