SWAY BAR LINK: Car & Truck Steering and Suspension Parts Online

The sway bar link is also called a stabilizer link. This is a critical part of the sway bar system.

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SWAY BAR LINK - ESSENTIAL FOR STABILITY

The link connects the sway bar to the control arm or axle housing. Many stabilizer links have replaceable bushings while others have to be completely replaced once they have worn out.

Wikipedia also offers this information on how the anti-roll and sway bar system works.