{"product_id":"curt-2-trailer-coupler-class-2-3-500-lb-gtw-zinc-plated-posi-lock-for-2-channel","title":"CURT 2\" Trailer Coupler Class 2 3,500 lb GTW Zinc-Plated Posi-Lock for 2\" Channel","description":"\u003cstrong\u003eCURT K-5153 is a zinc-plated, straight-tongue Class 2 trailer coupler that fits a 2\" ball and 2\" channel, rated for 3,500 lb gross trailer weight and 500 lb tongue weight.\u003c\/strong\u003e\n\n\u003cp\u003eBuilt for trailer owners who want a dependable replacement or an upgrade while fabricating a trailer, this CURT Posi-Lock coupler combines simple installation with a corrosion-resistant finish. The unit is manufactured from die-cut, punched steel and finished in zinc to resist weathering. A spring-loaded Posi-Lock latch with an adjustable nut lets you dial in a snug fit on the ball and lock the connection for added security.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the K-5153 attach to my trailer tongue?\u003c\/h3\u003e\n\n\u003cp\u003eThe coupler is designed to mount directly onto a 2\" wide straight trailer tongue channel. Installation requires aligning the coupler over the tongue, securing it with the factory-compatible fasteners, and tightening the internal adjustment nut to remove any play when latched.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits a 2\" wide trailer tongue channel for straightforward bolt-on mounting.\u003c\/li\u003e\n  \u003cli\u003eInternal adjustable nut lets you set a firm, rattle-free connection.\u003c\/li\u003e\n  \u003cli\u003ePosi-Lock mechanism accepts a safety pin or coupler lock for theft and detachment protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat towing capacity and ball size does it support?\u003c\/h3\u003e\n\n\u003cp\u003eThis CURT coupler is rated as a Class 2 coupler with a 3,500 lb gross trailer weight (GTW) capacity and a 500 lb tongue weight limit. It is engineered to couple with a standard 2\" diameter trailer ball, which is the most common size for light trailers and utility loads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e3,500 lb maximum gross trailer weight for light to medium loads.\u003c\/li\u003e\n  \u003cli\u003e500 lb tongue weight capacity to match common towing setups.\u003c\/li\u003e\n  \u003cli\u003eDesigned specifically for a 2\" trailer ball—no adapters required for correct fit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat features improve durability and safety?\u003c\/h3\u003e\n\n\u003cp\u003eThe coupler uses heavy-gauge punched, die-cut steel for structural strength and a zinc plating to resist rust from rain, road salt, and marine environments. The Posi-Lock latch is spring-loaded to keep the ball secured under vibration, and it can be locked with a pin or aftermarket coupler lock for additional peace of mind.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eZinc finish protects against corrosion for longer service life.\u003c\/li\u003e\n  \u003cli\u003eSpring-loaded Posi-Lock latch reduces accidental disengagement risks.\u003c\/li\u003e\n  \u003cli\u003eAccepts safety pins or coupler locks to prevent unauthorized separation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to adjust and maintain?\u003c\/h3\u003e\n\n\u003cp\u003eAdjustment is straightforward: loosen or tighten the internal nut to remove slack between the ball and coupler, then verify a snug fit when latched. Routine maintenance is minimal—periodic inspection, lubrication of moving parts, and checking the finish will keep it performing reliably.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSimple internal adjustment nut for quick fit tuning.\u003c\/li\u003e\n  \u003cli\u003eLow-maintenance zinc plating that withstands ordinary road use.\u003c\/li\u003e\n  \u003cli\u003eInspect latch and fasteners before each tow for safe operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The CURT K-5153 is aimed at owners of small utility trailers, boat trailers, campers, and DIY trailer builders who need a robust, serviceable coupler that fits a 2\" ball and 2\" channel. It’s a practical choice when you want a reliable, adjustable mounting coupler with corrosion protection and the option to secure the latch.\u003c\/p\u003e\n\n\u003cp\u003eAll CURT couplers are backed by CURT's limited lifetime warranty, providing added assurance for everyday towing and replacement projects.\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 this coupler fit a 2-inch trailer ball?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The CURT K-5153 is designed for a standard 2\" diameter trailer ball.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the maximum trailer weight this coupler supports?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It’s rated for up to 3,500 lb gross trailer weight and 500 lb tongue weight.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CURT","offers":[{"title":"Default Title","offer_id":67591698677945,"sku":"B001GN6YVE","price":79.43,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/curt-k-5153-front-view.jpg?v=1790557823","url":"https:\/\/redleafauto.ca\/products\/curt-2-trailer-coupler-class-2-3-500-lb-gtw-zinc-plated-posi-lock-for-2-channel","provider":"Redleaf Auto","version":"1.0","type":"link"}