--- product_id: 4571657 title: "TRIMAX UMAX100 Trailer Hitch Lock, 1-7/8\"-2-5/16\" Couplers" brand: "trimax" price: "$233.44" currency: USD in_stock: true category: "Trimax" url: https://www.desertcart.us/products/4571657-trimax-umax100-trailer-hitch-lock-1-7-8-2-5 store_origin: US region: United States of America --- # Dual ratchet locking system Weatherproof sealed keyhole 360° heavy-duty protection TRIMAX UMAX100 Trailer Hitch Lock, 1-7/8"-2-5/16" Couplers **Brand:** trimax **Price:** $233.44 **Availability:** ✅ In Stock ## Summary > 🔐 Lock in your trailer’s safety—because your gear deserves elite protection! ## Quick Answers - **What is this?** TRIMAX UMAX100 Trailer Hitch Lock, 1-7/8"-2-5/16" Couplers by trimax - **How much does it cost?** $233.44 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/4571657-trimax-umax100-trailer-hitch-lock-1-7-8-2-5) ## Best For - trimax enthusiasts ## Why This Product - Trusted trimax brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **360° Heavy-Duty Armor:** Full coverage resists cutting, drilling & forced entry - • **Lifetime Peace of Mind:** Built tough and backed by a limited lifetime warranty - • **Weatherproof Reliability:** Sealed keyhole keeps out dirt, dust & moisture for all-season use - • **Universal Fit, Zero Hassle:** Fits 1-7/8" to 2-5/16" couplers—one lock for every trailer - • **Unbreakable Dual Ratchet Security:** Advanced locking tech for tamper-proof trailer defense ## Overview The TRIMAX UMAX100 Trailer Hitch Lock features a dual ratchet locking system and 360-degree heavy-duty protection to prevent theft and tampering. Its weatherproof sealed keyhole ensures reliable operation in all conditions, while the one-size-fits-all design fits most standard trailer couplers from 1-7/8" to 2-5/16". Backed by a limited lifetime warranty, this lock offers durable, long-term security for your trailer. ## Description Buy TRIMAX UMAX100 Trailer Hitch Lock, 1-7/8"-2-5/16" Couplers: Hitch Locks - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - DUAL RATCHET SECURITY – Advanced dual ratchet locking system ensures a strong, tamper-resistant fit for maximum trailer protection - HEAVY DUTY PROTECTION: 360-degree coverage and a high-strength body resist cutting, drilling, and forced entry attempt - WEATHERPROOF LOCKING: Sealed keyhole cover prevents dirt, dust, and moisture, ensuring reliable locking even in harsh conditions - ONE-SIZE-FITS-ALL DESIGN: Engineered to fit most standard trailer couplers for hassle-free, universal protection - LIMITED LIFETIME WARRANTY: Built for durability and backed by a manufacturer’s limited lifetime warranty for confidence in long-term security ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000OC3Q2I | | Best Sellers Rank | #32,952 in Automotive ( See Top 100 in Automotive ) #67 in Towing Hitch Locks | | Brand | Trimax | | Customer Reviews | 4.5 4.5 out of 5 stars (3,222) | | Date First Available | July 1, 2004 | | Exterior | Painted | | Item Weight | 4.69 pounds | | Item model number | UMAX50 KC | | Manufacturer | Trimax Locks - Wyers Products | | Manufacturer Part Number | UMAX100 | | Model | Trimax Locks - Wyers Products UMAX100 | | OEM Part Number | UMAX100 | | Product Dimensions | 4 x 9.3 x 8.8 inches | | Special Features | Key Lock | ## Product Details - **Brand:** Trimax - **Item dimensions L x W x H:** 17 x 13 x 13 inches - **Lock Type:** Key Lock - **Material:** Synthetic - **Special Feature:** Not_Performance_Used ## Images ![TRIMAX UMAX100 Trailer Hitch Lock, 1-7/8"-2-5/16" Couplers - Image 1](https://m.media-amazon.com/images/I/71UwLbTSF3L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: I bought this lock and needed to cut the shackle as my keys were at another job and I needed to use trailer it was on.** A: Who is to say that you actually have this problem, you could be looking for a method to take a trailer that does not belong to you. I will not comment--just call a locksmith and prove that you own the trailer. **Q: How does it unlock?** A: There is a key. When you turn the key the whole base slides straight down and off. **Q: What is the difference between this and the umax50? does anyone know?** A: i kinda screwed up my locking system on the umax 50 trying to turn the key with ice in the lock. the key pulled out without it being lined up properly. im gonna buy the umax100 because it looks like its protected from the elements better. on the umax 50 all i did was drill the hole out with a titanium drill bit and gave it a few whacks with a mallet and it came right off. i am in no way an experienced theif, just watched a few youtube video because i didnt feel like paying a lock smith and I couldnt pick it on the first few tries. im sure its more of a visual deterrent, but I'm going to upgrade to this model. **Q: I need two locks keyed alike. How do I go about ordering them like this?** A: Amazon has them...... ## Frequently Bought Together - Trimax UMAX100 Premium Universal Dual Purpose Coupler Lock , Black - Trimax TCL65 Wheel Chock Lock , Yellow/Red, 7.25in - MAXXHAUL 70472 Solid Rubber Heavy Duty Black Wheel Chock 2-Pack, 8" x 4" x 6" --- ## 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/4571657-trimax-umax100-trailer-hitch-lock-1-7-8-2-5](https://www.desertcart.us/products/4571657-trimax-umax100-trailer-hitch-lock-1-7-8-2-5) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-21*