Dust covers and bump stops of the shock absorber and shock absorber struts are damping and protective elements for absorbing shocks in the suspension and preventing fouling of the shock absorber rod. The dust cover serves as a cover for the shock absorber rod, and the bump stop prevents metal parts from touching each other. The components prevent damage to the strut, and ensure reliable operation of the vehicle suspension.

Types of dust covers and bump stops of shock absorbers and shock-absorber struts

By design:

• separate design (the dust cover and the shock absorber bump stop are separate from each other);
• joint (the parts constitute a single whole).

By operation features the bump stops are:

• standard bump stops;
• for driving on highways;
• for fast driving;
• for comfort driving.

By the material:

• rubber bump stops;
• silicone;
• polyurethane.

Types of dust covers and bump stops of shock absorbers and shock-absorber struts

A bump stop is an elongated flexible element with a hole for fixing it to the rod.

A dust cover is a cover with corrugated surface, which is fixed to the rod, ensuring tightness of the component.

Tips on operating the dust covers and bump stops of shock absorber and shock absorber struts

A deformed dust cover of the shock absorber allows dirt and foreign particles to the rod, which results in rapid wear or breaking of the seal and the bump stop. In order to avoid costly repair and replacing suspension components, the reasons of the faults should be identified and eliminated in a timely manner.

Components should be diagnosed once in 6 months. This procedure should be performed on a special stand at a service station. The average service life of the components is 40-60 thousand km mileage.

Faults of dust covers and bump stops of shock absorbers and shock-absorber struts

• loosened fixture of the bump stop on the rod;
• cracking of components;
• damaged component;
• torn dust cover;
• loss of component elasticity.

Symptoms of dust covers and bump stops of shock absorbers and shock-absorber struts faults

• hard knocking and uncharacteristic sounds in the suspension when driving;
• vehicle inclination and bending back when accelerating;
• sagging of the vehicle rear part.

Reasons of dust covers and bump stops of shock absorbers and shock-absorber struts faults

• action of the chemicals that are present on the road surface during winter;
• poor quality of the components;
• occasional maintenance;
• heavy loading of the vehicle.

Replacing of dust covers and bump stops of shock absorbers and shock-absorber struts

The components cannot be repaired. They should be replaced after service life ending. Installation requires special equipment, and technical knowledge and experience. If you are not certain that you can install the components without errors, seek help from a specialist at a service station.

Professional help from AutoDoc

Our online store offers a wide range of quality parts of various units and systems of vehicles. If you need to buy dust covers and bump stops for shock absorbers and shock absorber struts, contact the AutoDoc company. We have reasonable prices, fast shipping, many promotions and discounts. The convenient system of choosing products lets you immediately find the required item. If you need professional advice, contact our technical support.