Heavy Duty RC offers spare parts and upgrades for both the Huina 1582 and 1573 dump truck models. Our spare parts are manufactured by Huina factory, while our upgrade parts are made by a professional CNC manufacturing company. We are always adding more parts to our inventory. Contact us if you have any questions. If you have any questions or concerns about our spare parts or upgrades for Huina dump trucks, please don't hesitate to contact us. Our knowledgeable and friendly customer service team is always happy to assist you.