Prevents dust and moisture from damaging the piston surface and seal. Protects piston rod from corrosion due to road pollution (dust, moisture, stones impact). Increases the life of the strut. Avoids premature oil leakage. Limits the suspension travel in the compression phase.
- To improve road handling
- To save money by increasing the life of the shock absorber life and coil spring
- No extra labour time if changing at the same time as the shock absorber
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