Description
Our Piston is a direct fit for NPK TNB-4M. The OEM part number is 415169040.
A piston is a cylindrical component that moves back and forth inside a cylinder, converting pressure into mechanical force. In hydraulic hammers, the piston is driven by hydraulic fluid to deliver powerful blows to break concrete, rock, and other materials.
Big Hammer Co. is a direct replacement manufacturer for all the brands we sell. Big Hammer Co. is not endorsed or sponsored by, or in any way associated with NPK. This product is an aftermarket part.
Any use of or reference to the NPK trademark is for the sole purpose of indicating compatibility or product fit, and is not meant to imply any affiliation or relationship between Big Hammer Co and NPK and/or the NPK Trademark.