AR100385 NEW Camshaft Fits John Deere 6.404 AND 6466 ENGINES, 4000+One New Aftermarket Replacement Camshaft Fits John Deere 6. 404 and 6466 Diesel Engines This aftermarket replacement camshaft is designed Fits John Deere (Fits JD) 6 cylinder diesel engines including the 6404A, 6404D, 6404T, 6466A, 6466D, and 6466T. It controls valve timing for both intake and exhaust cycles and is a direct replacement for the original equipment camshaft. Camshaft only does not include cam followers (valve lifters) or gear. Important