Ford part FINIS 1640497 Catalog Section # Part name Qty Prod Prod date FINIS Part No. Ford Sierra MkI (1982-1986) F4.11 - Exhaust System With Catalyst (TL20EFI, CAT) 3 Catalyst assyFRONTEngine: TL20EFI 1 D 8/82 - 12/86 1640497 86BB 5E211 CA