{"product_id":"curt-trailer-coupler-straight-tongue-for-3-inch-channel-2-inch-ball-5-000-lb-gtw-posi-lock-zinc","title":"CURT Trailer Coupler Straight Tongue for 3-Inch Channel — 2-inch Ball, 5,000 lb GTW, Posi-Lock Zinc","description":"\u003cp\u003e\u003cstrong\u003eCURT 25100 is a straight-tongue trailer coupler built for a 3-inch channel that securely mates to a standard 2-inch trailer ball and is rated for 5,000 lb gross trailer weight.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen you need a reliable replacement coupler or a solid new install for a trailer project, the CURT 25100 combines heavy-gauge steel construction, adjustable Posi-Lock latch action and zinc plating to resist corrosion and wear. Designed to mount to a 3-inch trailer tongue channel, this coupler gives a straightforward, serviceable connection for utility trailers, small equipment haulers and many boat trailers. It balances a simple fit-up with features that help keep your hitch tight and secure on the road.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this coupler attach to a 3-inch trailer channel?\u003c\/h3\u003e\n\u003cp\u003eThe CURT 25100 slips over a straight 3-inch-wide tongue channel and secures with fasteners through the pre-punched mounting area. Its design aligns to the channel for a stable, low-profile installation that avoids complex fabrication.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMounts to a 3-inch-wide trailer tongue channel.\u003c\/li\u003e\n  \u003cli\u003ePre-punched holes for bolting or riveting to the tongue beam.\u003c\/li\u003e\n  \u003cli\u003eLow-profile fit keeps the trailer tongue compact and tidy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the Posi-Lock latch easy to use and adjust?\u003c\/h3\u003e\n\u003cp\u003eThe Posi-Lock system uses a spring-loaded latch and an internal adjustable nut to set the coupling tension against the trailer ball. You can loosen or tighten the nut to eliminate play and ensure a snug engagement without special tools.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSpring-assisted Posi-Lock latch for positive engagement.\u003c\/li\u003e\n  \u003cli\u003eAdjustable internal nut lets you fine-tune fit to the 2\" ball.\u003c\/li\u003e\n  \u003cli\u003eLatch accepts a safety pin or coupler lock for extra security.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat load ratings and durability can I expect from the CURT 25100?\u003c\/h3\u003e\n\u003cp\u003eThis coupler is manufactured from die-cut and punched steel and finished with zinc plating to withstand road conditions and moisture. It is rated as a Class 3 coupler with a 5,000 lb gross trailer weight capacity and 700 lb tongue weight capacity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e5,000 lb gross trailer weight rating (GTW).\u003c\/li\u003e\n  \u003cli\u003e700 lb maximum tongue weight (TW).\u003c\/li\u003e\n  \u003cli\u003eDurable zinc finish for corrosion resistance in wet and salty environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this coupler improve towing security and maintenance?\u003c\/h3\u003e\n\u003cp\u003eThe lockable Posi-Lock latch reduces the chance of accidental uncoupling and accepts commonly available coupler locks or safety pins, while the adjustable tension feature minimizes wear from slop. Routine inspection and occasional lubrication of the latch keep it performing well over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLockable latch for theft deterrence and safety.\u003c\/li\u003e\n  \u003cli\u003eAdjustability reduces wear and prevents excessive play.\u003c\/li\u003e\n  \u003cli\u003eZinc plating lowers long-term corrosion and maintenance frequency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The CURT 25100 is aimed at trailer owners, DIY builders and fleet operators who need a dependable, easy-to-install straight-tongue coupler for 3\" channel tongues that mates to standard 2\" balls. It suits utility trailers, small equipment haulers, personal boat trailers and anyone replacing a worn coupler with a serviceable, adjustable unit backed by CURT's limited lifetime warranty.\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: Will this coupler fit any 3-inch trailer tongue?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—it's designed for standard 3\" wide channel tongues; confirm tongue thickness and use proper fasteners for secure mounting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I lock the Posi-Lock latch?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—the latch accepts a safety pin or coupler lock for extra security while parked or in storage.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CURT","offers":[{"title":"Default Title","offer_id":48083123732638,"sku":"B001GN6YU0","price":54.32,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/curt-25100-front-view.jpg?v=1785825689","url":"https:\/\/northtrailauto.ca\/products\/curt-trailer-coupler-straight-tongue-for-3-inch-channel-2-inch-ball-5-000-lb-gtw-posi-lock-zinc","provider":"North Trail Auto","version":"1.0","type":"link"}