WSM PISTON P650 66MM 010-831-07K

WSM PISTON P650 66MM 010-831-07K. The vendor part number is 010-831-07K. Read title carefully to know what you are getting. Here is the catalog descrion NOT the title?

• PISTON KITS include Piston, rings, pin and circlips
• The piston walls are treated with a nonabrasive coating which reduces heat and friction for added horsepower and greatly extends piston life
• Made to exact OEM specifications