{"product_id":"curt-2-5-16-inch-trailer-hitch-ball-30-000-lb-capacity-raw-steel-1-1-4-x-2-5-8-inch-shank","title":"CURT 2-5\/16-Inch Trailer Hitch Ball 30,000 lb Capacity — Raw Steel, 1-1\/4 x 2-5\/8-Inch Shank","description":"\u003cp\u003e\u003cstrong\u003eThe CURT 40085 is a heavy-duty 2-5\/16-inch trailer hitch ball engineered in raw steel to tow up to 30,000 pounds with a 1-1\/4\" x 2-5\/8\" shank for secure mounting.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis trailer ball is built for demanding towing tasks where strength, fit, and reliability matter. CURT designed the 40085 to pair with class 5 hitches and ball mounts, offering a straightforward, rugged connection between your tow vehicle and a wide range of receiver-style trailers—from utility trailers to deluxe RVs. The ball is hot-forged, heat-treated, and supplied with a hex nut and helical lock washer so you can install it with confidence and maintain secure service under heavy loads.\u003c\/p\u003e\n\n\u003ch3\u003eHow much weight can this CURT hitch ball safely handle?\u003c\/h3\u003e\n\u003cp\u003eThe CURT 40085 is rated for a gross trailer weight of up to 30,000 pounds when installed and used within the limits of your vehicle and hitch system. Always adhere to the lowest-rated component in the towing setup—vehicle, hitch, coupler, or ball—to determine your safe towing capacity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated capacity: 30,000 lbs gross trailer weight\u003c\/li\u003e\n  \u003cli\u003eDesigned for class 5 trailer hitches and mounts\u003c\/li\u003e\n  \u003cli\u003eFollow vehicle and hitch manufacturer limits as the controlling rating\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this ball fit my trailer coupler and hitch mount?\u003c\/h3\u003e\n\u003cp\u003eThis tow ball has a 2-5\/16\" diameter to match standard 2-5\/16\" couplers and a 1-1\/4\" diameter shank that is 2-5\/8\" long for secure attachment. The fine threads, hex nut, and helical lock washer help create a tight, reliable connection to compatible ball mounts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBall diameter: 2-5\/16\" — for corresponding couplers\u003c\/li\u003e\n  \u003cli\u003eShank: 1-1\/4\" diameter by 2-5\/8\" length for stable mounting\u003c\/li\u003e\n  \u003cli\u003eIncludes zinc-plated hex nut and helical lock washer for secure fastening\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and treatments give this ball its durability?\u003c\/h3\u003e\n\u003cp\u003eThe 40085 is hot-forged from steel and heat-treated to increase wear resistance and strength under heavy use. The raw steel finish emphasizes structural integrity for heavy towing applications while providing a straightforward, serviceable surface.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConstruction: hot-forged steel for maximum strength\u003c\/li\u003e\n  \u003cli\u003eHeat-treated to resist wear during frequent heavy loads\u003c\/li\u003e\n  \u003cli\u003eRaw steel finish for robust performance in heavy-duty use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is the ball secured and tested for safety?\u003c\/h3\u003e\n\u003cp\u003eInstallation relies on the included zinc-plated hex nut and helical lock washer and requires the specified torque for a dependable hold. CURT tests this hitch ball to U.S. VESC specifications to align with common safety and performance expectations for towing components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFastening: fine threads, hex nut, and helical lock washer (450 lb.-ft. torque required)\u003c\/li\u003e\n  \u003cli\u003eSafety: tested to U.S. VESC specifications for towing components\u003c\/li\u003e\n  \u003cli\u003eServiceable design makes inspection and re-torqueing straightforward\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this hitch ball for? The CURT 40085 suits owners who need a no-nonsense, industry-grade tow ball for heavy trailers—farm equipment, toy haulers, dump trailers, large utility trailers, and large RVs—where high gross trailer weight capacity and a secure fit are essential. If you operate a class 5 hitch system and require proven steel construction with tested safety credentials, this CURT ball provides a dependable connection point for demanding towing jobs. Remember to confirm all towing component ratings and follow proper installation torque and inspection procedures before every trip.\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: Does the CURT 40085 fit a 2-5\/16\" coupler?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The ball diameter is 2-5\/16\" and is made to mate with standard 2-5\/16\" trailer couplers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What shank size and torque are required for installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Shank is 1-1\/4\" diameter by 2-5\/8\" long; install using the provided nut and washer and torque to 450 lb.-ft.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CURT","offers":[{"title":"Default Title","offer_id":48082988433566,"sku":"B00IWT83O6","price":61.82,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/curt-40085-front-profile.jpg?v=1785821903","url":"https:\/\/northtrailauto.ca\/products\/curt-2-5-16-inch-trailer-hitch-ball-30-000-lb-capacity-raw-steel-1-1-4-x-2-5-8-inch-shank","provider":"North Trail Auto","version":"1.0","type":"link"}