Ridex 251T0568 trailing arm / suspension arm bush for BMW X3 F25 and X4 F26, front axle inner position (both sides). Rubber-metal mount construction with 14.2 mm inner diameter, 65.3 mm outer diameter, 84.1 mm width. A critical wear component that isolates suspension vibrations from the chassis and allows controlled articulation of the control arm. Quantity per axle: 2. Direct OEM-equivalent replacement for BMW part numbers 31 10 6 786 951 and 31 10 6 787 673. Supplied new in RIDEX quality.