This RIDGID 46478 Cylinder Head Sub Assembly is a genuine part manufactured by RIDGID. This Repair Part is designed to repair or replace the damaged part, and keep the intended tool functioning properly. The RIDGID 46478 Cylinder Head Sub Assembly prevents your tool from further malfunction and is fully covered under RIDGID's lifetime warranty, giving you the peace of mind that comes with the quality of all RIDGID products. For the most convenient and easiest online ordering of service RIDGID parts, look no further. Plumbersstock.com has an extensive list of over 600 RIDIGD Repair and Replacement Parts.