Masterparts offers a comprehensive range of shock absorbers, for sale at our branches across South Africa and in Namibia.
What do the shock absorbers do in a car?
Shock absorbers are part of a vehicle’s suspension system. They are responsible for helping to keep the tyres on the road and providing a smooth, comfortable ride.
A shock absorber is installed behind each tyre. It moves up and down along with the vehicle suspension as you negotiate any pot holes, bumps or corrugations on the road.
Most vehicles are fitted with telescopic shock absorbers, which may have one or two tubes. These components are sealed units and are typically replaced in pairs.
Diagram of monotube and twin tube shock absorbers. Source: Public domain, via Wikipedia.
The part itself consists of a tube or cylinder containing a piston, piston rod, fluid and gas. Depending on road conditions and driving style, shock absorbers have an average lifespan of around 5 to 10 years.
How do shock absorbers work?
In technical terms, shock absorbers are a type of hydraulic pump.
When the car’s suspension moves up and down, the hydraulic fluid in the reserve cylinder is forced through tiny holes inside the piston.
As only a small amount of fluid can pass through the piston, it slows down, and reduces the movement of the suspension system as the vehicle goes over rough or uneven terrain.
The faster the suspension moves up and down, the more resistance the shock absorbers provide to ensure that the tyres don’t lose traction on the road.
Diagram indicating operation of a shock absorber. Source: How Stuff Works.
Signs of a worn shock absorber
When one or more shock absorbers are worn, the tyres wear unevenly, braking is less responsive and every bump, corrugation and vibration is felt inside the car.
If the front of the car dips when braking, or the vehicle tilts to one side, the odds are the shocks have gone and need to be replaced.
Where to get shock absorbers from Masterparts
We offer a comprehensive range of shock absorbers for different vehicle makes and models.
Shock absorbers in and around Cape Town:
Shock absorbers in KwaZulu-Natal:
Shock absorbers in Namibia:
Along with shock absorbers, Masterparts supplies a full range of suspension, steering, engine, braking and electronic parts for cars. Contact us if there’s a part you need and we’ll do our best to help.
