I bought a nice X540 today but it appears to be one JD's infamous transition tractors where the old line of 540's was meeting the newer models on the assembly line. It has the black plastic engine covers that none of my older ones had. They cover the sides of the engine. And the deck came with the old style gauge wheel pins but the newer style spring pins holes were in the deck. It also had the garden hose fitting which none of my older ones had. I haven't checked the serial number because it was dark when I got it home. Have any of you had a 540 with this combo of parts? The seller bought it from a dealer who said it was all original. Pics tomorrow.