This water pump assembly is completely new, from the seal to the housing. It fits the John Deere Industrial / Construction 644B, 646, and 646B. (NOTE: replaces SE500921, AR64092, AR76327, AR98559, RE20772, TY6736)
Replaces: RE20772, AR98559, AR76327, AR64092, TY6736 - John Deere Re-Man#