Rich,I own a HDS2135. It came with a 38" deck. It lists a 38 or 42 as a standard deck, but gives no model number.In your profile it shows you own a Lt 2138. My owners manual shows 190-300,a 46" or a 190-301 a 48" as optional on the following, AGS2160, HDS2165, and HDS2185.My email has changed and I have not corrected it in my profile yet.