About this item Replacement Part Number: 4XE-13586-00-00, 90450-49001-00, 91317-06020-00, 93210-35537-00. Fitment: Perfect fits for Bear Tracker YFM 250. Function: Replace the damaged intake, give your machine the new power and torque it really deserves. Material: Made of high quality material that is durable and sturdy, perfect performance and long service life. Package Include: 1 x Intake boot, 1 x O-Ring, 1 x Clamp. Please confirm your model before placing an order.