Add to Cart The item has been added CH640-3126 20.5hp Command OHV Horizontal 1-1/8" x 2-3/4" Shaft Electric Start fits Simplicity with Command Engines, Supersedes CH640-3110 CH20S-64512, Kohler Engine Available Available to ship to you direct from our supplier. $2,238.99 Free Shipping Add to Cart The item has been added Compare