---
product_id: 769211591
title: "RETRUE Trailer Tongue Coupler Lock, Trailer Hitch Lock,Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV Truck Car's Coupler (1 Pack, Black)"
brand: "retrue"
price: "$57.43"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/769211591-retrue-trailer-tongue-coupler-lock-trailer-hitch-lock-dia-1
store_origin: US
region: United States of America
---

# 1/4-inch diameter pin Weather-resistant black finish High-strength zinc alloy build RETRUE Trailer Tongue Coupler Lock, Trailer Hitch Lock,Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV Truck Car's Coupler (1 Pack, Black)

**Brand:** retrue
**Price:** $57.43
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock it down, level up your trailer security game!

## Quick Answers

- **What is this?** RETRUE Trailer Tongue Coupler Lock, Trailer Hitch Lock,Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV Truck Car's Coupler (1 Pack, Black) by retrue
- **How much does it cost?** $57.43 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/769211591-retrue-trailer-tongue-coupler-lock-trailer-hitch-lock-dia-1)

## Best For

- retrue enthusiasts

## Why This Product

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

## Key Features

- • **Ready When You Are:** Includes 2 keys and backed by responsive 24/7 customer support for peace of mind.
- • **Effortless Security:** Simple 1/4-turn lock activation with flat key—lock or unlock in seconds.
- • **Theft Deterrent with Style:** Heavy-duty padlock design that screams ‘protected’ and keeps thieves guessing.
- • **Universal Fit, Zero Hassle:** Fits latch-type couplers up to 3/4-inch span for seamless compatibility.
- • **Built to Withstand & Protect:** Crafted from high-strength zinc alloy with corrosion-resistant plating for long-lasting security.

## Overview

The RETRUE Trailer Tongue Coupler Lock features a 1/4-inch diameter pin and fits latch-type couplers up to 3/4 inches wide. Made from high-strength zinc alloy with corrosion-resistant plating and a weatherproof black finish, it offers durable, reliable theft protection. Its padlock-style design uses a quick 1/4-turn key mechanism for easy locking and unlocking. Includes 2 keys and 24/7 customer support, making it a must-have security upgrade for your trailer, boat, RV, or truck.

## Description

Retrue Trailer Hitch Coupler Locking Pin Design：1/4 Inch diameter tongue lock pin with effective length 3/4 Inch. Small size for easy carrying. Keeping the coupler lock in your pocket or vehicle anywhere that is fine. Please verify dimension and length of the pin you want before purchasing our coupler hitch lock pin. How To Operate Our Trailer Tongue Coupler Lock: Spinning the flat key 5-7 times to open or close the hitch lock. Security Of Our Coupler Locking Pin: This trailer lock is made of high-strength steel to deter theft. The hitch lock is coated with black electrophoretic paint to prevent corrosion. Coupler Locking Hitch Pin's Application: Tow Trailer Boat RV Truck Car Retrue, a reliable brand in Hitch Sercurity Industry, we offer 30-day money-back for any reason, 12-month warranty for quality-related issues.

## Features

- Universal Fit Coupler Lock. With a 1/4-inch diameter pin and has a padlock-style design, this trailer coupler lock fits latch-type couplers with a maximum span of up to 3/4 inches
- Reliable Strength. This trailer pin lock is made of high-strength zinc alloy and protected from the elements with its black painted finish, while the coupler pin is shielded against corrosion with a durable zinc plating, enhance the the life of coupler lock and the security
- Highly Security. To help protect your trailer away from theft, this trailer lock is made from high-strength steel and has a padlock-style design
- Easy to use. This padlock-style trailer tongue lock has a heavy-duty look to deter theft. Uses a simple 1/4-turn lock activation for convenient locking and unlocking, Simply spin the flat key 5-7 times to open or close our hitch locking pin
- 2 Keys Included for Your Convenience. 2 keys comes in the package. If you encounter any problems, please feel free to contact us through the "Ask a Question" button. We are always happy to help and are committed to providing a responsive solution 24/7

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | RETRUE |
| Brand | RETRUE |
| Product Dimensions | 4.98 x 2.79 x 4.98 cm; 163.29 g |
| Item model number | RTL200 |
| Manufacturer part number | RTL200B |
| Special Features | Weather Resistant |
| Item Weight | 163 g |

## Product Details

- **Brand:** RETRUE
- **Special feature:** Weather Resistant
- **Item dimensions L x W x H:** 50 x 28 x 50 millimetres
- **Material:** Alloy Steel
- **Colour:** Black

## Images

![RETRUE Trailer Tongue Coupler Lock, Trailer Hitch Lock,Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV Truck Car's Coupler (1 Pack, Black) - Image 1](https://m.media-amazon.com/images/I/71w7aMoFTUL.jpg)
![RETRUE Trailer Tongue Coupler Lock, Trailer Hitch Lock,Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV Truck Car's Coupler (1 Pack, Black) - Image 2](https://m.media-amazon.com/images/I/71VGXjo5lPL.jpg)
![RETRUE Trailer Tongue Coupler Lock, Trailer Hitch Lock,Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV Truck Car's Coupler (1 Pack, Black) - Image 3](https://m.media-amazon.com/images/I/71sQJ0vxdzL.jpg)
![RETRUE Trailer Tongue Coupler Lock, Trailer Hitch Lock,Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV Truck Car's Coupler (1 Pack, Black) - Image 4](https://m.media-amazon.com/images/I/71zAdpriwFL.jpg)
![RETRUE Trailer Tongue Coupler Lock, Trailer Hitch Lock,Dia 1/4 Inch, 3/4 Inch Span for Tow Boat RV Truck Car's Coupler (1 Pack, Black) - Image 5](https://m.media-amazon.com/images/I/71qtioRyC9L.jpg)

## Available Options

This product comes in different **Colour Name, Size Name** options.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-01*