{"product_id":"curt-k-5138-class-2-trailer-coupler-3-500-lbs-gtw-2-ball-zinc-plated","title":"CURT K-5138 Class 2 Trailer Coupler | 3,500 LBS GTW, 2\" Ball, Zinc Plated","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eWhen you’re replacing a broken coupler or building a new trailer, CURT delivers a dependable straight-tongue option designed for lasting performance. The K-5138 couples with a standard 2-inch ball and uses a Posi-Lock latch for straightforward operation. A durable zinc finish guards against the elements, helping resistance to wear and tear as you tow. With a gross trailer weight rating of 3,500 pounds and a tongue weight rating of 500 pounds, this coupling solution aims to handle everyday towing demands without sacrificing reliability.\u003c\/p\u003e\u003cp\u003eDesigned for a straight trailer tongue, the 3-inch channel provides a predictable mounting footprint that fits common trailer builds. The result is a simpler installation path and a secure connection you can trust across seasons and miles. This model embodies CURT’s approach to sturdy construction, practical adjustability, and security-enhancing features, all backed by a limited lifetime warranty on couplers.\u003c\/p\u003e\u003ch3\u003eKey specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e3-inch wide mounting channel compatible with straight tongues\u003c\/li\u003e\n\u003cli\u003e2-inch diameter trailer ball compatibility\u003c\/li\u003e\n\u003cli\u003e3,500 lb gross trailer weight rating\u003c\/li\u003e\n\u003cli\u003e500 lb tongue weight capacity\u003c\/li\u003e\n\u003cli\u003eDurable zinc plating for corrosion resistance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy CURT K-5138 stands out\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePosi-Lock latch for easy, adjustable secure coupling\u003c\/li\u003e\n\u003cli\u003eLockable latch accepts a safety pin or coupler lock for added security\u003c\/li\u003e\n\u003cli\u003eHigh-strength punched, die-cut steel construction\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant finish suitable for boats, trailers, and gear haulers\u003c\/li\u003e\n\u003cli\u003eIncludes CURT’s limited lifetime warranty on couplers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation and care\u003c\/h3\u003e\u003cp\u003eTo install, align the 3-inch channel with a straight trailer tongue and secure with the provided hardware. The internal nut and posi-lock spring allow a snug fit around the ball, while the latch is designed to work with a pin or lock for enhanced security. After installation, test the latch, verify a solid engagement, and keep a safety pin or lock on hand for added peace of mind.\u003c\/p\u003e\u003cp\u003eMaintenance is straightforward: keep the surface clean, inspect for signs of wear or corrosion, and replace worn components as needed. This routine helps maintain reliable performance and reduces the chance of looseness while towing.\u003c\/p\u003e\u003cp\u003eIn short, the CURT K-5138 offers a practical, ready-to-use solution for straight-tongue trailers that require robust coupling, easy setup, and a durable finish. If your trailer matches the 3-inch channel and 2-inch ball criteria, this coupler presents a viable option to consider alongside your towing setup.\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 K-5138 coupler?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rated for 3,500 lbs gross trailer weight and 500 lbs tongue weight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the latch support additional security for towing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the Posi-Lock latch accepts a safety pin or coupler lock for added security.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CURT","offers":[{"title":"Default Title","offer_id":42470276202581,"sku":"B0007LZGY2","price":62.43,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/curt-k-5138-coupler-front-view.jpg?v=1778128116","url":"https:\/\/plentytorque.co.uk\/products\/curt-k-5138-class-2-trailer-coupler-3-500-lbs-gtw-2-ball-zinc-plated","provider":"PlentyTorque","version":"1.0","type":"link"}