E5NN6701BA Years:1965 & Up. Rear Crankshaft Seal, Made Of VITON Material To Stop Leakage On Both The Lip Sealing Area And The Outer Housing. Application Is Late Ford 3 & 4 Cylinder Gas & Diesel Engines; 6X, 6Y & 7AG, Models 2000-7000, (1965-75); 2600-7700: (1975-81); 2610 Thru 7710, (1981-). Replaces Part Number: C5NE6701C2.