Note : Close Out product-Limited availability — inventory may be zero. Please contact us to confirm stock before placing an order. Note : Close Out product-Limited availability — inventory may be zero. Please contact us to confirm stock before placing an order. Axle Sprocket - 40 Tooth - 6.43 in Bolt Pattern - Aluminum - Natural - Micro Sprint - Each Brand- M AND W ALUMINUM PRODUCTS MPN SP520-643-40T . **NOTE: Truck Freight- NO State Restrictions Canada Restrictions- NO