D Bush (also called a Stabilizer Bar Bush or Anti-roll Bar Bush) is a rubber or polyurethane mounting bush shaped like the letter “D”. It is used to hold the stabilizer bar (sway bar) firmly to the vehicle’s chassis, allowing it to flex while reducing noise and vibrations.
Key Functions
Secures stabilizer bar: Holds the anti-roll bar in place during suspension movement.
Reduces noise and vibration: Dampens metal-to-metal contact.
Allows controlled movement: Lets the stabilizer bar twist slightly for better handling.
Improves ride comfort: Minimizes body roll during turns.
Typical Features
D-shaped rubber or polyurethane design
Central hole for stabilizer bar
Clamped to chassis with a metal bracket
Resistant to heat, oil, and wear
Benefits
Enhances vehicle stability during cornering
Improves steering response
Extends life of suspension components
Simple and low-cost to replace