{"product_id":"curt-trailer-hitch-ball-2-5-16-chrome-10-000-lb-rating-1-x-2-1-4-shank-nickel-chrome-finish","title":"CURT Trailer Hitch Ball 2-5\/16\" Chrome, 10,000 lb Rating, 1\" x 2-1\/4\" Shank, Nickel-Chrome Finish","description":"\u003cp\u003e\u003cstrong\u003eCURT 40007 is a heavy-duty 2-5\/16-inch chrome trailer hitch ball built to tow up to 10,000 pounds with a 1\" shank and 2-1\/4\" thread engagement.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for demanding towing jobs, the CURT 40007 hitch ball combines hot-forged steel strength, corrosion-resistant plating, and precision machining so your coupler seats securely and resists wear. It’s engineered to meet rigorous U.S. VESC testing standards and includes the hardware needed for a dependable install. Use it only within the limits of your vehicle, hitch, and trailer components.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this hitch ball handle heavy towing tasks?\u003c\/h3\u003e\n\u003cp\u003eThe 40007 is forged from high-strength steel and rated for a 10,000 lb gross trailer weight, providing the structural capacity required for many Class 5 towing setups. Its construction minimizes deformation under load and the design reduces stress concentrations at the ball-shank junction.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e10,000 lb gross trailer weight rating for heavy-duty towing\u003c\/li\u003e\n  \u003cli\u003eHot-forged steel core for improved impact and shear resistance\u003c\/li\u003e\n  \u003cli\u003eMeets U.S. VESC testing benchmarks for safety and durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this ball fit my 2-5\/16\" coupler and hitch mount?\u003c\/h3\u003e\n\u003cp\u003eThe ball diameter is a true 2-5\/16 inches to match standard 2-5\/16\" couplers, while the shank is sized at 1\" diameter and 2-1\/4\" length for secure installation into most Class 5 ball mounts. Fine threads and supplied hardware help maintain clamping force when torqued to specification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e2-5\/16\" ball diameter for compatible couplers\u003c\/li\u003e\n  \u003cli\u003e1\" shank diameter and 2-1\/4\" shank length for stable engagement\u003c\/li\u003e\n  \u003cli\u003eComes with zinc-plated hex nut and helical lock washer for secure fastening\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the finish protect the hitch ball from the elements?\u003c\/h3\u003e\n\u003cp\u003eThe CURT 40007 uses a nickel-chrome plating that resists corrosion and surface wear better than bare steel. The smooth finish also reduces abrasion against couplers and helps prevent rust from compromising fit or appearance over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNickel-chrome plating for enhanced corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eSmooth surface reduces wear on couplers and contact points\u003c\/li\u003e\n  \u003cli\u003eChrome finish simplifies cleaning and inspection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation and maintenance steps should I follow?\u003c\/h3\u003e\n\u003cp\u003eInstall the ball into the mount, hand-start the nut and washer, then torque to the manufacturer recommended 250 lb-ft to ensure safe clamping. Periodically inspect threads, plating, and the nut\/washer assembly for corrosion or loosening, and re-torque after initial road use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse the supplied hex nut and helical lock washer for a secure fit\u003c\/li\u003e\n  \u003cli\u003eTorque to 250 lb-ft (per product guidance) and recheck after first use\u003c\/li\u003e\n  \u003cli\u003eRegularly inspect finish and mounting hardware for wear or rust\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The CURT 40007 is aimed at drivers who tow heavy loads with Class 5 hitches—owners of large utility trailers, toy haulers, dump trailers, full-size RVs, and small boat trailers who need a rugged, proven 2-5\/16\" hitch ball. It’s also a good choice for fleet managers and contractors who require dependable components that meet U.S. VESC standards. Always verify that the lowest-rated component in your towing setup dictates your maximum safe tow weight.\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 is the weight capacity of the CURT 40007 trailer ball?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The CURT 40007 is rated for a 10,000 lb gross trailer weight; never exceed the lowest-rated towing component.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What size shank does this hitch ball use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It has a 1\" shank diameter with a 2-1\/4\" shank length, designed for common Class 5 ball mounts.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CURT","offers":[{"title":"Default Title","offer_id":48086815604894,"sku":"B0009TAOGW","price":31.16,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/curt-40007-front-view.jpg?v=1785906328","url":"https:\/\/northtrailauto.ca\/products\/curt-trailer-hitch-ball-2-5-16-chrome-10-000-lb-rating-1-x-2-1-4-shank-nickel-chrome-finish","provider":"North Trail Auto","version":"1.0","type":"link"}