---
product_id: 281023757
title: "TRIMAX UMAX50D Universal Dual Purpose Trailer Coupler and U-Lock"
brand: "trimax"
price: "€ 147.76"
currency: EUR
in_stock: true
reviews_count: 5
category: "Trimax"
url: https://www.desertcart.hr/products/281023757-trimax-umax50d-universal-dual-purpose-trailer-coupler-and-u-lock
store_origin: HR
region: Croatia
---

# Dual ratchet locking system Fits 3 coupler sizes (1-7/8", 2", 2-5/16") Rugged corrosion-resistant finish TRIMAX UMAX50D Universal Dual Purpose Trailer Coupler and U-Lock

**Brand:** trimax
**Price:** € 147.76
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock it down, stand out with TRIMAX security!

## Quick Answers

- **What is this?** TRIMAX UMAX50D Universal Dual Purpose Trailer Coupler and U-Lock by trimax
- **How much does it cost?** € 147.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/281023757-trimax-umax50d-universal-dual-purpose-trailer-coupler-and-u-lock)

## 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

- • **Built to Brave the Elements:** Powder-coated corrosion-resistant finish ensures long-lasting durability.
- • **Dual Ratchet Locking System:** Double the locking power to keep your trailer safe and sound.
- • **Heavy-Duty Chrome Alloy Steel:** Solid, robust construction that says ‘no entry’ to thieves.
- • **Integrated U-Lock Convenience:** Two-in-one design for unmatched trailer and hitch security.
- • **Universal Fit, Ultimate Security:** Seamlessly locks 3 common coupler sizes for versatile protection.

## Overview

The TRIMAX UMAX50D is a heavy-duty, dual-purpose trailer coupler lock featuring a patented dual ratchet locking system that fits most couplers (1-7/8", 2", and 2-5/16"). Crafted from chrome alloy steel with a rugged corrosion-resistant powder-coated finish, it offers reliable, long-lasting protection. Its integrated U-lock design provides versatile security, making it a top choice for trailer owners seeking peace of mind.

## Description

Lock it or lose it! TRIMAX's Deluxe Universal Dual Purpose trailer Coupler Lock features a dual ratchet locking system that fits most couplers, including 1-7/8", 2", and 2-5/16". It features a rugged corrosion-resistant finish. Pair it with TRIMAX cables and chains for added security.

Review: Feels solid, pretty heavy. Locks as intended, no problems. I sprayed the keyhole right away with anti rust lubricant, just in case. My advice is to order if sold by desertcart, I ordered from a third party seller (RNR Camper), the lock packaging (not desertcart box) was all torn up, even the previous customer info was still inside
Review: As it should

## Features

- 9/16" shackle
- Die cast patented dual purpose coupler lock and U-lock
- Dual ratchet locking system
- Fits most couplers - 1-7/8", 2", and 2-5/16"
- Rugged corrosion-resistant finish

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B084ZW5BNZ |
| ASIN  | B084ZW5BNZ |
| Batteries | 1 Unknown batteries required. |
| Batteries  | 1 Unknown batteries required. |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #56,256 in Automotive ( See Top 100 in Automotive ) #33 in Automotive Hitch Locks #127 in Automotive Trailer Couplings & Accessories |
| Country of origin  | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (957) |
| Customer reviews | 4.6 4.6 out of 5 stars (957) |
| Date First Available | 20 March 2020 |
| Date First Available  | 20 March 2020 |
| Finish | Powder Coated |
| Included components | TRIMAX UMAX50D Deluxe Universal Dual Purpose Trailer Coupler Lock with Integrated U-Lock |
| Item Package Quantity | 1 |
| Item Weight | 1.63 Kilograms |
| Item model number | UMAX50D |
| Item model number  | UMAX50D |
| Manufacturer | TRIMAX |
| Manufacturer  | TRIMAX |
| Material | Chrome Alloy Steel Aluminum |
| Part number | UMAX50D |
| Product Dimensions | 24.77 x 23.5 x 10.16 cm; 1.63 kg |
| Product Dimensions  | 24.77 x 23.5 x 10.16 cm; 1.63 kg |
| Size | UMAX50D |
| Style | UMAX |

## Images

![TRIMAX UMAX50D Universal Dual Purpose Trailer Coupler and U-Lock - Image 1](https://m.media-amazon.com/images/I/71-QyR0wkIL.jpg)
![TRIMAX UMAX50D Universal Dual Purpose Trailer Coupler and U-Lock - Image 2](https://m.media-amazon.com/images/I/71jJ3AbWWoL.jpg)
![TRIMAX UMAX50D Universal Dual Purpose Trailer Coupler and U-Lock - Image 3](https://m.media-amazon.com/images/I/81X9gevvYuL.jpg)
![TRIMAX UMAX50D Universal Dual Purpose Trailer Coupler and U-Lock - Image 4](https://m.media-amazon.com/images/I/81mtR+V0JDL.jpg)
![TRIMAX UMAX50D Universal Dual Purpose Trailer Coupler and U-Lock - Image 5](https://m.media-amazon.com/images/I/81nEGTUMLML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by U***R on 8 September 2023*

Feels solid, pretty heavy. Locks as intended, no problems. I sprayed the keyhole right away with anti rust lubricant, just in case. My advice is to order if sold by Amazon, I ordered from a third party seller (RNR Camper), the lock packaging (not Amazon box) was all torn up, even the previous customer info was still inside

### ⭐⭐⭐⭐⭐ Review
*by V***O on 31 December 2024*

As it should

### ⭐⭐⭐⭐⭐ Review
*by M***R on 27 March 2023*

I have a lightweight tow dolly for pulling a slingshot. Once we get to destination, car and tow dolly stay in parking lot. Dolly is not very heavy, and I wanted to secure the tongue from nefarious actors. This fits the coupler very tightly, and combined with a chain thru the wheels to prevent dragging, my dolly should be secure. Unit appears strong. And I like the circular style keyway. Came quickly at a great price. Happy camper so far.

## Frequently Bought Together

- TRIMAX UMAX50D Universal Dual Purpose Trailer Coupler and U-Lock
- Maxxhaul 70472 Solid Rubber Heavy Duty Black Wheel Chock 2-Pack, 8" X 4" X 6"

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**Shop now:** [https://www.desertcart.hr/products/281023757-trimax-umax50d-universal-dual-purpose-trailer-coupler-and-u-lock](https://www.desertcart.hr/products/281023757-trimax-umax50d-universal-dual-purpose-trailer-coupler-and-u-lock)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-07*