car rear view
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Suspension Material of Your Car: Which One to Choose?

When there is some rattling in suspension, and the car starts to “catch” all the holes on the road, the problem may be hiding in the failure of the silent block. To fix the problem, you need to replace the part. You can install polyurethane bushings as a spare part.

Bushings are available in various forms that depend on the design of a particular vehicle. They lack metal elements. They can be rubber or polyurethane.

Rubber suspension elements

The advantages of rubber elements include:

  • Elasticity. It is the key plus of rubber. Elastic silent block lengthens the suspension stroke. It is relevant for off-road vehicles subject to increased load.
  • Softness. This protects the body from shocks and vibrations. Driving becomes comfortable.
car suspension
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Still, there are disadvantages:

  • Rubber dries up during operation, becomes covered with cracks.
  • Constant contact with chemical reagents reduces the service life of parts.
  • The bushings, the silents soften, which leads to a less stable position of the vehicle. It may deviate from driving in a straight line.

Advantages of polyurethane suspension elements

Polyurethane elements are more modern. They are able to withstand difficult operating conditions.

  • A good level of stability under increased load.
  • Polyurethane is solid, which gives additional rigidity to the chassis. This reduces the amplitude, improving the handling of the car, increasing its maneuverability.
  • Long service life.
  • Resistance to temperature changes. Polyurethane withstands frost, heat without cracking.
  • Resists reagents. Chemical compositions do not destroy silent boxes and bushings due to the artificial origin of the material.
moto suspension
Photo by Artem Beliaikin on Unsplash


The polyurethane version is suitable for a passenger car model with a short suspension stroke. It is better to use it within the city on flat roads. It is recommended to refuse installation on an SUV.

Polyurethane is a modern version of the part. You need to use original spare parts. A fake, of which there are many on the market, will last little and only harm.

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