---
product_id: 93701861
title: "Proven Industries Model 2178 Trailer Lock, Fits 2-Inch Trailer Couplers, Made in the USA (Black-Square)"
brand: "proven industries"
price: "₩761212"
currency: KRW
in_stock: true
category: "Proven Industries"
url: https://www.desertcart.kr/products/93701861-proven-industries-model-2178-trailer-lock-fits-2-inch-trailer
store_origin: KR
region: South Korea
---

# Hardened steel lock body Pick-proof unique key design Weather-resistant exterior shield Proven Industries Model 2178 Trailer Lock, Fits 2-Inch Trailer Couplers, Made in the USA (Black-Square)

**Brand:** proven industries
**Price:** ₩761212
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in peace of mind — your trailer’s toughest guardian!

## Quick Answers

- **What is this?** Proven Industries Model 2178 Trailer Lock, Fits 2-Inch Trailer Couplers, Made in the USA (Black-Square) by proven industries
- **How much does it cost?** ₩761212 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/93701861-proven-industries-model-2178-trailer-lock-fits-2-inch-trailer)

## Best For

- proven industries enthusiasts

## Why This Product

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

## Key Features

- • **Tailored Fit:** Custom-designed to snugly fit 2-inch trailer couplers for maximum protection
- • **Made in the USA:** Crafted with precision and quality control from concept to fabrication domestically
- • **Unbreakable Security:** Hardened alloy steel resists power tools and brute force attacks
- • **Pick-Proof Innovation:** Exclusive disc-detainer key system prevents lock picking and key duplication
- • **All-Weather Durability:** Weather-resistant construction ensures reliable performance rain or shine

## Overview

The Proven Industries Model 2178 Trailer Lock is a heavy-duty, weather-resistant security device engineered from hardened alloy steel. Designed exclusively for 2-inch trailer couplers, it features a patented pick-proof disc-detainer key system and a robust exterior shield to thwart theft attempts. Proudly made in the USA, this lock combines precision manufacturing with innovative security to protect your trailer or camper with unmatched reliability.

## Description

Buy Proven Industries Model 2178 Trailer Lock, Fits 2-Inch Trailer Couplers, Made in the USA (Black-Square): Hitch Locks - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- HEAVY-DUTY TRAILER LOCK: It’s important to do everything you can to protect your belongings and your trailer or camper from being stolen. Our strong coupler lock fits select 2-inch trailer couplers to help keep your trailer secure.
- TOUGH LOCK: The locking parts on this device are constructed from hardened steel for increased security, and the exterior cover is tough enough to stop burglars from using power tools, hammers, and crowbars on your lock.
- UNIQUE KEY DESIGN: Our trailer lock has a special key design that prevents anyone from picking the lock. This innovative key system also features an interior locking mechanism that stops would-be thieves from making a copy of your key.
- CUSTOM TRAILER-COUPLER LOCK: This custom-tailored lock will only mount on very specific 2-inch couplers. Make sure to check the coupler sizes that are compatible with our lock hardware to ensure that the lock you select matches your trailer coupler.
- PROVEN INDUSTRIES: We are dedicated to providing our customers with the most effective trailer locks on the market. We carefully research and manufacture our locking systems from conception to fabrication in the USA.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0G8TXSVP1 |
| Additional Features | Weather Resistant |
| Best Sellers Rank | #43,903 in Automotive ( See Top 100 in Automotive ) #95 in Towing Hitch Locks |
| Brand | Proven Industries |
| Brand Name | Proven Industries |
| Color | Black-Square |
| Customer Reviews | 4.7 out of 5 stars 783 Reviews |
| Included Components | inner slide, exterior shield, puck lock |
| Item Dimensions | 8.6 x 7.58 x 5.13 inches |
| Item Weight | 13.6 pounds |
| Item dimensions L x W x H | 8.6 x 7.58 x 5.13 inches |
| Lock Type | Disc-Detainer |
| Manufacturer | Proven Industries, Inc |
| Manufacturer Part Number | 2178 |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Name | 2178 |
| Model Number | 2 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Recommended Uses For Product | Trailers, RVs, Safety Chains |
| Special Feature | Weather Resistant |
| Style Name | Traditional |
| UPC | 810104184311 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Proven Industries
- **Item dimensions L x W x H:** 8.6 x 7.58 x 5.13 inches
- **Lock Type:** Disc-Detainer
- **Material:** Alloy Steel
- **Special Feature:** Weather Resistant

## Images

![Proven Industries Model 2178 Trailer Lock, Fits 2-Inch Trailer Couplers, Made in the USA (Black-Square) - Image 1](https://m.media-amazon.com/images/I/81eQ70SwHTL.jpg)
![Proven Industries Model 2178 Trailer Lock, Fits 2-Inch Trailer Couplers, Made in the USA (Black-Square) - Image 2](https://m.media-amazon.com/images/I/71Dr3ZLZ2lL.jpg)
![Proven Industries Model 2178 Trailer Lock, Fits 2-Inch Trailer Couplers, Made in the USA (Black-Square) - Image 3](https://m.media-amazon.com/images/I/71n3B-87YZL.jpg)
![Proven Industries Model 2178 Trailer Lock, Fits 2-Inch Trailer Couplers, Made in the USA (Black-Square) - Image 4](https://m.media-amazon.com/images/I/714MZ+URWKL.jpg)
![Proven Industries Model 2178 Trailer Lock, Fits 2-Inch Trailer Couplers, Made in the USA (Black-Square) - Image 5](https://m.media-amazon.com/images/I/716AgP1oYIL.jpg)

## Available Options

This product comes in different **Color** options.

## Frequently Bought Together

- Proven Industries Model 2178 Trailer Lock, Fits 2-Inch Trailer Couplers, Secures Safety Chains, Made in The USA, (Blue)
- Proven Industries Model 2516 Trailer Lock, Fits 2 5/16-Inch Couplers, Secures Safety Chains, Made in The USA, (Blue)
- Proven Industries Model 400XL Puck-Lock Set, Made in The USA, Pack of 3, (Blue)

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**Shop now:** [https://www.desertcart.kr/products/93701861-proven-industries-model-2178-trailer-lock-fits-2-inch-trailer](https://www.desertcart.kr/products/93701861-proven-industries-model-2178-trailer-lock-fits-2-inch-trailer)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-09-26*