Catalog Section # Part name Qty Prod Prod date FINIS Part No. Ford Fiesta MkI/MkII (1976-1989) E1.20 - Brake Booster 41 Valve assyONLY USE WITH BRAKE MASTER CYLINDER WITH FLAT FITTING POSITION 1 GB 5/76 - 5/81 6073023 79FB 2L283 AA Ford Fiesta MkI/MkII (1976-1989) E1.30 - Brake Booster 26 ONLY USE WITH BRAKE MASTER CYLINDER WITH FLAT FITTING POSITION 1 5/76 - 12/88 6073023 79FB 2L283 AA