Mar 30, 2026
R129 SL Interior Seat Belt Outlet Cover
Are the plastic seat belt guides on your Mercedes R129 seats shattered or missing? Discover why the factory OEM parts (A1299100539 / A1299100639) degrade under UV heat, and how our newly engineered 3-Piece Seat Belt Outlet Kit provides a permanent, high-impact solution that perfectly matches your classic interior.
