---
product_id: 48563257
title: "Neilsen ct3123 Universal Security Coupling Hitch Lock for Trailers Caravan Horse Box Tow Ball Fittings, Yellow"
brand: "neilsen"
price: "$U2901"
currency: UYU
in_stock: true
reviews_count: 13
category: "Neilsen"
url: https://www.desertcart.uy/products/48563257-neilsen-ct3123-universal-security-coupling-hitch-lock-for-trailers-caravan
store_origin: UY
region: Uruguay
---

# Universal fit for most trailers Highly visible yellow deterrent Spare key included for convenience Neilsen ct3123 Universal Security Coupling Hitch Lock for Trailers Caravan Horse Box Tow Ball Fittings, Yellow

**Brand:** neilsen
**Price:** $U2901
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in peace of mind with the ultimate trailer security!

## Quick Answers

- **What is this?** Neilsen ct3123 Universal Security Coupling Hitch Lock for Trailers Caravan Horse Box Tow Ball Fittings, Yellow by neilsen
- **How much does it cost?** $U2901 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/48563257-neilsen-ct3123-universal-security-coupling-hitch-lock-for-trailers-caravan)

## Best For

- neilsen enthusiasts

## Why This Product

- Trusted neilsen brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Key Convenience:** Includes a spare key so you’re never locked out
- • **Effortless Operation:** Easy to install and remove, saving you time and hassle
- • **Robust Build Quality:** Solid, sturdy design ensures maximum protection and peace of mind
- • **Universal Compatibility:** Fits most caravans, horse boxes, and trailers seamlessly
- • **High-Visibility Deterrent:** Bright yellow color instantly signals security and prevents theft

## Overview

The Neilsen CT3123 Universal Security Coupling Hitch Lock is a robust, easy-to-use anti-theft device designed to fit most trailers, caravans, and horse boxes. Featuring a highly visible yellow finish for maximum deterrence and including a spare key, it offers reliable protection and convenience without the need for batteries.

## Description

Product Description Universal security coupling lock / hitch lock for trailers caravan horse box tow ball fittings. Universal coupling lock to fit most caravans, horse boxes, trailers etc. Legal Disclaimer please follow any and all instructions and warnings provided by the manufacturer

Review: Trailer ball lock vfm - Perfect ball lock to secure trailer, very solid strong, excellent quality, great service
Review: Good value. - Good deterrent and easy to place on and take off, sturdy design made me feel more at ease leaving my trailer in a public place.

## Features

- Universal security coupling lock / hitch lock for trailers caravan horse box tow ball fittings
- Universal coupling lock to fit most caravans, horse boxes, trailers etc.
- Fits into the tow hitch in exactly the same manner as the tow ball on your vehicle
- Highly visible Yellow colour helps to increase the Deterrent effect
- Spare Key Included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0081ZHHTS |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 215,381 in Automotive ( See Top 100 in Automotive ) 1,500 in Universal Accessories for Trailer Couplings |
| Colour | Yellow |
| Customer Reviews | 4.0 4.0 out of 5 stars (387) |
| Date First Available | 10 May 2012 |
| Included Components | 1 x Universal Security Coupling Lock / Hitch Lock for Trailers Caravan Horse Box Tow Ball Fittings |
| Item Package Quantity | 1 |
| Item Weight | 260 g |
| Item model number | CT3123 |
| Manufacturer | Neilsen |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part Number | CT3123 |
| Power Source | AC |
| Product Dimensions | 2 x 2 x 2 cm; 260 g |

## Images

![Neilsen ct3123 Universal Security Coupling Hitch Lock for Trailers Caravan Horse Box Tow Ball Fittings, Yellow - Image 1](https://m.media-amazon.com/images/I/71qG588HOqL.jpg)

## Questions & Answers

**Q: My insurance company is asking if this is manufactured to British safety standard or it will invalidate my insurance**
A: Sorry, don’t know but it should say on the advert or the packaging

**Q: Will it fit a Bailey olympus 504 2010?**
A: I would imagine that your van has a typical connection to a typical vehicle tow bar ball therefore unless you personally have altered something there should be reason why this doesn’t fit. It’s not the best security by a long chalk but it’s better than nothing.

**Q: will this fit a Sprite sportstyle s4 2010 caravan**
A: Sorry, don't lnow

**Q: Hi will this fit an Ifor Williams 510 horse trailer?**
A: Hi, it fits my  IW 505 ,  I’m sure it would as it goes on the towing bit 😄

## Customer Reviews

### ⭐⭐⭐⭐⭐ Trailer ball lock vfm
*by T***F on 4 December 2025*

Perfect ball lock to secure trailer, very solid strong, excellent quality, great service

### ⭐⭐⭐⭐⭐ Good value.
*by R***E on 1 October 2019*

Good deterrent and easy to place on and take off, sturdy design made me feel more at ease leaving my trailer in a public place.

### ⭐⭐⭐⭐⭐ Works well
*by N***. on 9 March 2024*

Fits our trailer. Great value and works well. Perfect for keeping the trailer safe and secure! Would definitely buy from here again.

## Frequently Bought Together

- Neilsen ct3123 Universal Security Coupling Hitch Lock for Trailers Caravan Horse Box Tow Ball Fittings, Yellow
- Wheel Clamp Car Safety Lock – Suitable for Cars, Vans, Caravans, Boats, Trailers, Motorcycles etc | Heavy Duty, Adjustable, Secure Anti-Theft Lock for Wheels | Strong, Reliable & Long Lasting
- Maypole Universal Trailer Hitchlock for Standard 50 mm Couplings

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**Shop now:** [https://www.desertcart.uy/products/48563257-neilsen-ct3123-universal-security-coupling-hitch-lock-for-trailers-caravan](https://www.desertcart.uy/products/48563257-neilsen-ct3123-universal-security-coupling-hitch-lock-for-trailers-caravan)

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-04-26*