CMPNC18K (Type 0) Craftsman Nailer - Parts

This OEM piston/driver is a genuine replacement part designed to strike fasteners into the material during operation of a pneumatic nail gun. It plays a critical role in the tool’s performance by delivering the driving force needed to sink nails accurately and efficiently. Over time, the piston/driver can bend or break due to repeated use...Read more, and when that happens, it should be replaced to restore proper function. Please note that the piston ring is not included with this item and must be purchased separately if needed.

It is a genuine OEM sourced replacement screw which is specially designed for use with Bostitch, Dewalt and Porter Cable nailers/staplers. This is one of the screws used to secure the end cap, please note the washers are sold separately. It is a high-quality hex socket head screw which is made of durable metal and it is sold individually.

This OEM piston ring is a replacement part designed to maintain proper pressure within the cylinder of a pneumatic tool. It plays a critical role in sealing the piston, allowing pressure to build and drive the piston downward when the tool is engaged. Over time, the piston ring can deteriorate, loosen, or crack, leading to a loss of power...Read more or complete failure of the driver mechanism. Replacing the piston ring is a simple repair. Begin by removing the top cap of the tool, then take out the piston and the old ring. Carefully install the new piston ring over the top of the piston, taking care not to damage it during installation. Once in place, reassemble the tool and test it to ensure proper function.