The seat rail bushings wear out, causing excessive seat movement. Poor quality bushings within the seat subframe tracks can wear, perish, or disintegrate, leading to increased rail movement. Install our upgraded seat runner bushings to eliminate excess movement. Our bushings do not deteriorate like the original parts and are designed to last the lifetime of the vehicle. This is a common issue resolved with our repair kit. Compatible with Z3 Coupe, all Z3 models, Z3 E36, E37, E38, 1994–2002 Roadster and Coupe, Z3M, M Roadster, M Coupe. Associated part numbers: 52108401291, 52108401292, 52108399593, 52108398812, 52107137499. Color: Silver. Material: Rubber. Package Contents: 8x bushing. Only the above package content is included; other products are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1–3 cm.