--- product_id: 117719663 title: "Proven Industries Model 2516 Heavy-Duty Trailer Coupler Lock for 2 5/16 Couplers – RV & Trailer Anti-Theft Lock, Made in USA" brand: "proven industries" price: "$676.70" currency: USD in_stock: true reviews_count: 13 category: "Proven Industries" url: https://www.desertcart.us/products/117719663-proven-industries-model-2516-heavy-duty-trailer-coupler-lock-2 store_origin: US region: United States of America --- # Pick-proof unique key design Hardened steel lock body Power tool & hammer resistant Proven Industries Model 2516 Heavy-Duty Trailer Coupler Lock for 2 5/16 Couplers – RV & Trailer Anti-Theft Lock, Made in USA **Brand:** proven industries **Price:** $676.70 **Availability:** ✅ In Stock ## Summary > 🔐 Lock in peace of mind — because your trailer deserves elite protection. ## Quick Answers - **What is this?** Proven Industries Model 2516 Heavy-Duty Trailer Coupler Lock for 2 5/16 Couplers – RV & Trailer Anti-Theft Lock, Made in USA by proven industries - **How much does it cost?** $676.70 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/117719663-proven-industries-model-2516-heavy-duty-trailer-coupler-lock-2) ## Best For - proven industries enthusiasts ## Why This Product - Trusted proven industries brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Fit:** Custom engineered to snugly fit select 2 5/16-inch trailer couplers for foolproof installation. - • **Made in the USA:** Proudly designed and manufactured domestically, guaranteeing quality and supporting local craftsmanship. - • **Unmatched Security:** Hardened alloy steel construction resists cutting, hammering, and prying attempts. - • **Pick-Proof Innovation:** Exclusive disc-detainer lock mechanism with a patented key design that prevents lock picking and key duplication. - • **Weather-Resistant Durability:** Built to withstand harsh outdoor conditions without rust or corrosion, ensuring long-term reliability. ## Overview The Proven Industries Model 2516 Trailer Lock is a heavy-duty, weather-resistant security device designed specifically for 2 5/16-inch trailer couplers. Crafted from hardened alloy steel and featuring a patented pick-proof disc-detainer lock, it offers superior protection against theft and tampering. Easy to install and remove, this American-made lock secures safety chains and resists power tools, crowbars, and harsh weather, making it the trusted choice for professional trailer owners. ## Description For over a decade, Proven Industries has set the standard for premium security solutions. As a family-owned business, we take pride in manufacturing the majority of our products in the USA, where craftsmanship and innovation go hand in hand. Every lock system reflects our dedication to quality, performance, and the peace of mind our customers deserve. Proven Industries—designed to protect, built to last. Trailer-Coupler Locks Visit the Store Trailer-Coupler Locks Visit the Store Other Lock Systems Visit the Store Other Lock Systems Premium Quality Locks How did we get our start? Our story began with a family trailer being stolen with thousands of dollars of equipment inside. We decided to develop strong, durable locks to ensure that wouldn’t happen again to anyone. What are your locks made from? Each lock is constructed from hardened steel, which helps prevent burglars from using power tools, hammers, and crowbars on the device. How do I choose the lock I need? Our custom-tailored locks mount only on specific couplers. Check the coupler sizes that are compatible with our lock hardware to ensure that your chosen lock matches your trailer coupler. How did we get our start? Our story began with a family trailer being stolen with thousands of dollars of equipment inside. We decided to develop strong, durable locks to ensure that wouldn’t happen again to anyone. What are your locks made from? Each lock is constructed from hardened steel, which helps prevent burglars from using power tools, hammers, and crowbars on the device. How do I choose the lock I need? Our custom-tailored locks mount only on specific couplers. Check the coupler sizes that are compatible with our lock hardware to ensure that your chosen lock matches your trailer coupler. Review: Nice and secure - For years I have purchased middle of the road coupler locks for my trailers and every one of them, from Trimax, to Reese, to Master Lock has failed me in some way. Several of them had to have the lock cylinder drilled out because they were stuck on there and no longer worked with the key. I got sick of dealing with the headache of trying to leave on a trip and drilling out the lock to get my own trailer hooked up. I decided to spring for an expensive setup, hoping it would be my last. I will never again hassle with cheap locks. This Proven Lock product is extremely well-made and heavy duty. It fit right onto the coupler of my trailer perfectly, holding the safety chain hooks inside and lining up the first time I put it on. The puck lock is very nice. The blue looks nice, and the lock cylinder seems like it will hold up. It is very easy to install and remove, and I am no longer worried about getting locked out from towing my own trailer again. Worth the money (albeit pricey) to save me some headaches. Review: Best lock in the market. - This is my second unit purchased. I want to take a moment to share my positive feedback regarding the trailer tongue lock. This product has proven to be exceptionally reliable and secure, providing me with peace of mind whenever my trailer is parked. The robust design ensures that it effectively protects against theft, which is a significant concern for anyone who owns a trailer. I’ve also found it to be remarkably easy to install and remove, making it a practical solution for everyday use. The sleek design complements the overall look of my trailer, and the durable materials suggest that it will stand the test of time, even with regular exposure to the elements. Overall, I highly recommend the trailer tongue lock to anyone looking to enhance their trailer's security. It truly is an excellent investment for protecting your valuable assets. ## Features - HEAVY-DUTY TRAILER LOCK: It’s important to do everything you can to protect your belongings and your trailer or camper from being stolen. Our strong coupler lock fits select 2 5/16-inch trailer couplers to help keep your trailer secure. - TOUGH LOCK: The locking parts on this device are constructed from hardened steel for increased security, and the exterior cover is tough enough to stop burglars from using power tools, hammers, and crowbars on your lock. - UNIQUE KEY DESIGN: Our trailer lock has a special key design that prevents anyone from picking the lock. This innovative key system also features an interior locking mechanism that stops would-be thieves from making a copy of your key. - CUSTOM TRAILER-COUPLER LOCK: This custom-tailored lock will only mount on specific 2 5/16-inch couplers. Make sure to check the coupler sizes that are compatible with our lock hardware to ensure that the lock you select matches your trailer coupler. - PROVEN INDUSTRIES: We are dedicated to providing our customers with the most effective trailer locks on the market. We carefully research and manufacture our locking systems from conception to fabrication in the USA. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0G319Y11G | | Additional Features | Weather Resistant | | Best Sellers Rank | #16,365 in Automotive ( See Top 100 in Automotive ) #43 in Towing Hitch Locks | | Brand | Proven Industries | | Brand Name | Proven Industries | | Color | Black-Square | | Customer Reviews | 4.7 out of 5 stars 1,730 Reviews | | Included Components | inner slide, exterior shield, puck lock | | Item Dimensions | 7.5 x 5.63 x 7 inches | | Item Weight | 13 Pounds | | Item dimensions L x W x H | 7.5 x 5.63 x 7 inches | | Lock Type | Disc-Detainer | | Manufacturer | Proven Locks | | Manufacturer Part Number | 2516 | | Material | Alloy Steel | | Material Type | Alloy Steel | | Model Name | 2516 | | Model Number | 2516 | | Number of Pieces | 1 | | Recommended Uses For Product | Securing trailers, RVs, and outdoor equipment | | Special Feature | Weather Resistant | | Style Name | Traditional | | UPC | 810104184304 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Proven Industries - **Item dimensions L x W x H:** 6 x 5.5 x 6 inches - **Lock Type:** Disc-Detainer - **Material:** Alloy Steel - **Special Feature:** Weather Resistant ## Images ![Proven Industries Model 2516 Heavy-Duty Trailer Coupler Lock for 2 5/16 Couplers – RV & Trailer Anti-Theft Lock, Made in USA - Image 1](https://m.media-amazon.com/images/I/81E4YrmZjtL.jpg) ![Proven Industries Model 2516 Heavy-Duty Trailer Coupler Lock for 2 5/16 Couplers – RV & Trailer Anti-Theft Lock, Made in USA - Image 2](https://m.media-amazon.com/images/I/71iD6ppbeaL.jpg) ![Proven Industries Model 2516 Heavy-Duty Trailer Coupler Lock for 2 5/16 Couplers – RV & Trailer Anti-Theft Lock, Made in USA - Image 3](https://m.media-amazon.com/images/I/71Z8sQouNSL.jpg) ![Proven Industries Model 2516 Heavy-Duty Trailer Coupler Lock for 2 5/16 Couplers – RV & Trailer Anti-Theft Lock, Made in USA - Image 4](https://m.media-amazon.com/images/I/71H79dGN55L.jpg) ![Proven Industries Model 2516 Heavy-Duty Trailer Coupler Lock for 2 5/16 Couplers – RV & Trailer Anti-Theft Lock, Made in USA - Image 5](https://m.media-amazon.com/images/I/71dJe9Po+UL.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice and secure *by M***T on January 7, 2025* For years I have purchased middle of the road coupler locks for my trailers and every one of them, from Trimax, to Reese, to Master Lock has failed me in some way. Several of them had to have the lock cylinder drilled out because they were stuck on there and no longer worked with the key. I got sick of dealing with the headache of trying to leave on a trip and drilling out the lock to get my own trailer hooked up. I decided to spring for an expensive setup, hoping it would be my last. I will never again hassle with cheap locks. This Proven Lock product is extremely well-made and heavy duty. It fit right onto the coupler of my trailer perfectly, holding the safety chain hooks inside and lining up the first time I put it on. The puck lock is very nice. The blue looks nice, and the lock cylinder seems like it will hold up. It is very easy to install and remove, and I am no longer worried about getting locked out from towing my own trailer again. Worth the money (albeit pricey) to save me some headaches. ### ⭐⭐⭐⭐⭐ Best lock in the market. *by B***N on March 10, 2025* This is my second unit purchased. I want to take a moment to share my positive feedback regarding the trailer tongue lock. This product has proven to be exceptionally reliable and secure, providing me with peace of mind whenever my trailer is parked. The robust design ensures that it effectively protects against theft, which is a significant concern for anyone who owns a trailer. I’ve also found it to be remarkably easy to install and remove, making it a practical solution for everyday use. The sleek design complements the overall look of my trailer, and the durable materials suggest that it will stand the test of time, even with regular exposure to the elements. Overall, I highly recommend the trailer tongue lock to anyone looking to enhance their trailer's security. It truly is an excellent investment for protecting your valuable assets. ### ⭐⭐⭐⭐⭐ Great Lock, Great Support! *by G***G on January 26, 2026* Great quality lock. Very solid and well constructed. Delivered on-time. I was also very impressed with their customer support and how fast they were able to resolve MY mistake when I ordered the wrong size for my hitch… I will be ordering more locks for my other trailers in the near future. ## Frequently Bought Together - Proven Industries Model 2516 Trailer Lock, Fits 2 5/16-Inch Couplers, Secures Safety Chains, Made in The USA, (Blue) - Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 3, (Blue) - Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 2, (Blue) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/117719663-proven-industries-model-2516-heavy-duty-trailer-coupler-lock-2](https://www.desertcart.us/products/117719663-proven-industries-model-2516-heavy-duty-trailer-coupler-lock-2) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-18*