Catalog Section # Part name Qty Prod Prod date FINIS Part No. Ford Sierra MkI (1982-1986) A13.21 - Rear Seat 2-Piece Back Less A/Rest (LIFTBACK 3D/5D) 2 Frame and spring - rr seat cushionVersion: EXCEPT XR4X4Market: -S LH 1 2/85 - 12/86 1618570 83BB B63161 BB Ford Sierra MkI (1982-1986) A13.21 - Rear Seat 2-Piece Back Less A/Rest (LIFTBACK 3D/5D) LH 1 8/82 - 2/85 1618570 83BB B63161 BB