{"product_id":"haiboxing-1-18-rc-cars-spare-parts-metal-spur-gear-drive-pinions-diff-complete-for-18859a-18859-18858-18868","title":"HAIBOXING 1:18 RC Cars Spare Parts — Metal Spur Gear Drive Pinions \u0026 Diff Complete for 18859A\/18859\/18858\/18868","description":"\u003ch2\u003eUpgrade your 1:18 HAIBOXING rig with a durable metal gear and diff set\u003c\/h2\u003e\n\u003cp\u003eThis HAIBOXING spare parts kit combines a robust metal spur gear drive pinions and a complete diff assembly, designed for select HBX 1:18 models. Rather than relying on standard plastics, the metal construction delivers a solid feel when the drivetrain engages, helping the vehicle respond crisply to throttle input and maintain consistent performance across rocky surfaces and smooth pavement alike. The set is framed to suit enthusiasts who value reliability and a precise gear mesh for longer runs and more confident handling.\u003c\/p\u003e\n\u003cp\u003eCompatibility is a key focus. The kit is intended for HBX 18859A, 18859, 18858, and 18868 variants, making it a versatile upgrade for several widely used HBX platforms. Whether you’re repairing a worn drivetrain after a day of bashing or refreshing an aging kit, this complete replacement helps you get back on the track quickly without sacrificing control or torque delivery.\u003c\/p\u003e\n\u003ch3\u003eWhat’s included and where it fits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSpare Part Number: M1901*2 + M1902*1\u003c\/li\u003e\n  \u003cli\u003eItem Name: Metal Spur Gear Drive Pinions and Diff Complete (New Version)\u003c\/li\u003e\n  \u003cli\u003eQuantity: a complete set\u003c\/li\u003e\n  \u003cli\u003eOriginal spare part, 100% applicable\u003c\/li\u003e\n  \u003cli\u003eApply to HBX 18859A, 18868, 18859, 18858\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey specifications you’ll notice\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eMain Gear: diameter 28.5 mm\u003c\/li\u003e\n  \u003cli\u003eMould: 0.5\u003c\/li\u003e\n  \u003cli\u003eTeeth: 57T\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy choose a metal gear set?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEnhanced durability under demanding driving conditions, with a steadier torque transfer\u003c\/li\u003e\n  \u003cli\u003eGreater resistance to wear and heat generated by repeated gear engagement\u003c\/li\u003e\n  \u003cli\u003eConsistent performance across a range of terrains, from loose gravel to smooth asphalt\u003c\/li\u003e\n  \u003cli\u003eOEM-grade fit that keeps the drive train aligned and responsive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTips for installation and care\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePower off the model and remove the battery before work\u003c\/li\u003e\n  \u003cli\u003eInspect gear teeth for alignment and clean any debris before fitting\u003c\/li\u003e\n  \u003cli\u003eTorque fasteners to the manufacturer’s guidelines to avoid gear binding\u003c\/li\u003e\n  \u003cli\u003eRegularly inspect the diff and pinions after intense sessions to catch wear early\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis kit offers a practical way to refresh a damaged or worn drivetrain, with a focus on reliability and smoother gear engagement. It’s a suitable option for owners who want a capable upgrade that aligns with existing HBX parts while preserving control during aggressive driving scenarios.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What models is this HAIBOXING Metal Spur Gear Drive Pinions set compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Designed for HBX 18859A, 18859, 18858, and 18868; verify your model before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What does the kit include and why is it worth upgrading?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Includes M1901 x2 and M1902 x1, a complete metal gear\/diff set for reliable gear engagement.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HAIBOXING","offers":[{"title":"Default Title","offer_id":46524336046279,"sku":"B0DPKQG398","price":31.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/2355\/7319\/files\/haiboxing-metal-spur-gear-diff-complete-18859a-18859.jpg?v=1778327130","url":"https:\/\/toyterrax.com\/products\/haiboxing-1-18-rc-cars-spare-parts-metal-spur-gear-drive-pinions-diff-complete-for-18859a-18859-18858-18868","provider":"ToyTerrax","version":"1.0","type":"link"}