Brand New Front Right CV Axle Shaft. ? CRITICAL FITMENT NOTE. FIRST GENERATION HPX MODELS ONLY. With a serial number. It will not fit newer generations or higher serial numbers. How to Prevent Ordering the Wrong Part. To avoid the hassle of a return, please confirm this part is correct for your machine using one of these 4 steps. Verify by Serial Number: Check your vehicle’s data tag. Your serial number must be -040000 or lower. Match by OEM Part Number: This axle replaces original factory numbers AM137220 and VGA10842. Verify by Image Shape: Carefully compare your original factory axle with the shape and design shown in our listing photos. We are glad to help! Placement on Vehicle: Front, Right Side (Passenger Side).