3/4" threaded hole, NPT (tapered pipe thread).Includes: Mounting Gasket, Fittings & O-RingsThe D4008840N Water Pump w/ Hub - New fits equipment brands such as: Allis Chalmers, GleanerThe D4008840N is a substitute for the following discontinued products: D4008840
Has water ports for gas models w/ pressed on pulley.Includes: Mounting & Backplate GasketThe 601816N Water Pump w/ Hub - New fits equipment brands such as: InternationalThe 601816N is a substitute for the following discontinued products: 601816
Includes: Mounting & Backplate GasketThe W162900N Water Pump w/ Hub - New fits equipment brands such as: OliverThe W162900N is a substitute for the following discontinued products: W162900