TRW axle ball joint JBJ829 (outer/top front, left/right, cone diameter 13.8 mm) for Land Rover Discovery III/IV and Range Rover Sport I (L320), engines 2.7D-5.0, 07.2004-12.2018. Cross numbers: 5H323263BA, RBK500161, RBK500170. Supports steering precision and front suspension safety.