---
product_id: 4571657
title: "Trimax - UMAX 100 - Trailer Lock for Hitch, Dual Force Security - Trailer Hitch Lock for 1-7/8\" - 2-5/16\" Couplers, All Coupler Types"
brand: "trimax"
price: "€ 194.61"
currency: EUR
in_stock: true
reviews_count: 8
category: "Trimax"
url: https://www.desertcart.it/products/4571657-trimax-umax-100-trailer-lock-for-hitch-dual-force-security
store_origin: IT
region: Italy
---

# Dual ratchet locking system Weatherproof sealed keyhole 360° reinforced steel protection Trimax - UMAX 100 - Trailer Lock for Hitch, Dual Force Security - Trailer Hitch Lock for 1-7/8" - 2-5/16" Couplers, All Coupler Types

**Brand:** trimax
**Price:** € 194.61
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock it down like a pro — because your trailer deserves elite protection!

## Quick Answers

- **What is this?** Trimax - UMAX 100 - Trailer Lock for Hitch, Dual Force Security - Trailer Hitch Lock for 1-7/8" - 2-5/16" Couplers, All Coupler Types by trimax
- **How much does it cost?** € 194.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/4571657-trimax-umax-100-trailer-lock-for-hitch-dual-force-security)

## 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

- • **Weatherproof Reliability:** Sealed keyhole keeps out dirt, dust & moisture for all-season use
- • **Built to Last, Guaranteed:** Backed by a limited lifetime warranty for peace of mind
- • **Universal Fit, Zero Hassle:** Fits all standard 1-7/8" to 2-5/16" trailer couplers effortlessly
- • **360-Degree Heavy-Duty Armor:** Reinforced steel body resists cutting, drilling & prying
- • **Unmatched Dual Force Security:** Double ratchet locking for maximum theft deterrence

## Overview

The Trimax UMAX 100 Trailer Lock offers industry-leading dual ratchet security combined with a reinforced steel body that provides 360-degree protection against theft attempts. Designed to fit all standard trailer couplers from 1-7/8" to 2-5/16", its weatherproof sealed keyhole ensures reliable operation in any environment. Durable and backed by a limited lifetime warranty, this lock is the ultimate choice for professionals who demand uncompromising trailer security.

## Description

Buy Trimax - UMAX 100 - Trailer Lock for Hitch, Dual Force Security - Trailer Hitch Lock for 1-7/8" - 2-5/16" Couplers, All Coupler Types: Hitch Locks - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Should be very sturdy to protect tow dolly - 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.
Review: Pretty good as a mechanical lock. - works as i should. Used on a bulldog hitch. Latches on both sides. Will only slow down a person with a battery operated grinder though.

## Features

- ULTIMATE SECURITY: Dual ratchet locking system and reinforced steel design provide the highest level of theft deterrence for your trailer
- 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 |
| Additional Features | Not_Performance_Used |
| Best Sellers Rank | #43,188 in Automotive ( See Top 100 in Automotive ) #92 in Towing Hitch Locks |
| Brand | Trimax |
| Brand Name | Trimax |
| Color | Black |
| Controller Type | Hand Control |
| Customer Reviews | 4.3 out of 5 stars 4,191 Reviews |
| Global Trade Identification Number | 00797824100763 |
| Included Components | Trimax Locks - Wyers Products UMAX100 |
| Item Dimensions | 17 x 13 x 13 inches |
| Item Height | 13 inches |
| Item Type Name | LOCK |
| Item Weight | 2.13 Kilograms |
| Item dimensions L x W x H | 17 x 13 x 13 inches |
| Lock Type | Key Lock |
| Manufacturer | Trimax Locks - Wyers Products |
| Manufacturer Warranty Description | Manufacturer Warranty |
| Material | Synthetic |
| Material Type | Synthetic |
| Model Number | UMAX100 |
| Recommended Uses For Product | Trailer |
| Shape | U Shape |
| Special Feature | Not_Performance_Used |
| Style Name | UMAX |
| UPC | 192019086783 779422971389 797824100763 192019086752 192019086776 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Trimax
- **Special Feature:** Not_Performance_Used
- **Lock Type:** Key Lock
- **Item dimensions L x W x H:** 17 x 13 x 13 inches
- **Material:** Synthetic

## Images

![Trimax - UMAX 100 - Trailer Lock for Hitch, Dual Force Security - Trailer Hitch Lock for 1-7/8" - 2-5/16" Couplers, All Coupler Types - Image 1](https://m.media-amazon.com/images/I/71UwLbTSF3L.jpg)

## Available Options

This product comes in different **Size, Style** 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......

## Customer Reviews

### ⭐⭐⭐⭐⭐ Should be very sturdy to protect tow dolly
*by M***R on March 27, 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.

### ⭐⭐⭐⭐⭐ Pretty good as a mechanical lock.
*by S***R on June 11, 2025*

works as i should. Used on a bulldog hitch. Latches on both sides. Will only slow down a person with a battery operated grinder though.

### ⭐⭐⭐⭐⭐ Heavy duty lock
*by A***R on September 29, 2025*

Very solid lock. Easy to install. Heavy weight and rugged.

## 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"

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-07*