Pin, Center Steering Arm
CTPA-55150S Replacement Part to Fit:  John Deere For Models: 2040, 2155, 2240, 2355, 2555, 2755 6.180" long; cntr hole 1.421" dia.; 1.378" & 1.181"brg dia  Price:  $40.74  Buyers Club Price:  $36.67