Ford part FINIS 1643890 Catalog Section # Part name Qty Prod Prod date FINIS Part No. Pinto OHC engines B2.55 - Exhaust Air Supply Box 2 Valve - exhaust air supply checkSIERRA/GRANADA/SCORPIOWITH CAT. AND LAMBDAEngine: TL20EFI 1 D 10/85 - 5/89 1643890