Graco 17F136 Center Section Rebuild Kit Zinc Coated Steel the heat treated load plates ID:3 8" the heat treated load plates and case hardened corrosive resistant internal parts extend the life of the hoist• Double sealed ball bearings support the load sheave to increase efficiency and promote smooth operation• Impact resistant all steel construction for added durability and protection• The lightweight and smaller body design are ideal for confined areas and low headroom applications The solid carbide inserts we use are heavy duty and extra thick 44 in the parts diagram) is a genuine replacement component designed for your pump This Graco 17F136 Center Section Rebuild Kit (Ref