---
title: "demco ez latch coupler lock — Niche Verdict: Skip it (48/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/demco-ez-latch-coupler-lock"
last_updated: "2026-07-10T02:42:39.605Z"
locale: en
meta:
  description: "a small market ($94K/yr) — demco ez latch coupler lock doesn't clear our bar today."
  "og:description": "a small market ($94K/yr) — demco ez latch coupler lock doesn't clear our bar today."
  "og:title": "demco ez latch coupler lock — Niche Verdict: Skip it (48/100) | Amazon United States - Flapen"
---

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# **demco ez latch coupler lock**

**Skip it****48/100 **

a small market ($94K/yr) — demco ez latch coupler lock doesn't clear our bar today.

**Market/yr**

**$94K**

**Growth (1y)**

**+298.3%**

**Products**

**21**

**Brands**

**14**

was 11 a year ago

**Sellers**

**74**

**Price range**

**$18.13–$291.18**

**Returns**

**3.3%**

**Rating**

**4.5★**

**Skip it**

Scored 48/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns

Market size

**5**

 ×0.30

Growth

**85**

 ×0.30

Competition

**48**

 ×0.20

Quality gap

**38**

 ×0.10

Returns

**73**

 ×0.10

## **Demand**

Weekly Amazon search volume, last 104 weeks — +298.3% year over year.

922461Spike '24Spike '25Prime Day '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

## **Seasonality**

Monthly demand index across the year — 1.00 is average.

JFMAMJJASOND

Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 2.4×

## **Competition**

- InfiniteRule Security23% - Demco22% - Proven Industries16% - VEVOR10% - S5 Coupler Locks7% - METOWARE4% - Other (8 brands)19%

The top 5 products take 58% of clicks — established leaders, but buyers still shop beyond them. 14 brands and 74 sellers compete here.

**Brands**

**14 **▲rising

was 11 a year ago

**Sellers**

**74**

**Top 5 brand share**

**77%**

#ProductBrandPriceRatingReviewsClick shareTrend

1
![Demco EZ Latch Trailer Coupler | 2-5/16 Ball | 21 000 lbs | Channel Mount | Heavy-Duty Steel | Zinc Coated | Model 14040-81](https://m.media-amazon.com/images/I/41eGQyd0PML.jpg) [**Demco EZ Latch Trailer Coupler | 2-5/16 Ball | 21 000 lbs | Channel Mount | Heavy-Duty Steel | Zinc Coated | Model 14040-81**](https://www.amazon.com/dp/B01N57BQTA)

Demco$74.294.7★18319%▲rising

2
![InfiniteRule Security 61130 | Trailer Latch Lock for DEMCO EZ Latch 2-5/16 Ball & Gooseneck Couplers - Fits Cast Model Only - Does NOT FIT Stamped Model American Made in USA](https://m.media-amazon.com/images/I/21w7pEXUHuL.jpg) [**InfiniteRule Security 61130 | Trailer Latch Lock for DEMCO EZ Latch 2-5/16 Ball & Gooseneck Couplers - Fits Cast Model Only - Does NOT FIT Stamped Model American Made in USA**](https://www.amazon.com/dp/B0CFG7NNTG)

InfiniteRule Security$59.044.6★8612%▼falling

3
![VEVOR Collar Coupler Lock Fits 2 & 2-5/16-Inch Demco Cast Head Couplers Trailer Hitch Lock with 3 Keys Secures Security Chains Rust-Resistant Anti-Theft RV Trailer Locks for RV Trailer Boat](https://m.media-amazon.com/images/I/41xPaliEdrL.jpg) [**VEVOR Collar Coupler Lock Fits 2 & 2-5/16-Inch Demco Cast Head Couplers Trailer Hitch Lock with 3 Keys Secures Security Chains Rust-Resistant Anti-Theft RV Trailer Locks for RV Trailer Boat**](https://www.amazon.com/dp/B0FHWJQPM6)

VEVOR$60.514.4★1710%▼falling

4
![InfiniteRule Security 61121 | Trailer Latch Lock for DEMCO EZ Latch - 2.0 Ball](https://m.media-amazon.com/images/I/21w7pEXUHuL.jpg) [**InfiniteRule Security 61121 | Trailer Latch Lock for DEMCO EZ Latch - 2.0 Ball**](https://www.amazon.com/dp/B0BRY14B4N)

InfiniteRule Security$58.514.6★339%▲rising

5
![Proven Industries Trailer Lock Model 2517-D1 Fits 2 5/16 in Demco Cast Trailer Couplers 2 Keys Included Heavy-Duty Security Hardened Steel Unique Key Design Made in USA Blue](https://m.media-amazon.com/images/I/31hXTL7QFZL.jpg) [**Proven Industries Trailer Lock Model 2517-D1 Fits 2 5/16 in Demco Cast Trailer Couplers 2 Keys Included Heavy-Duty Security Hardened Steel Unique Key Design Made in USA Blue**](https://www.amazon.com/dp/B0F4T87582)

Proven Industries$290.704.8★398%▲rising

6
![S5 Coupler Locks Demco 2-5/16 Adjustable Coupler Lock (LCS002 Demco) Custom Fit for Dump and Equipment Trailers with C-Channel Mounts. (Includes Trimax Puck Lock)](https://m.media-amazon.com/images/I/41toufCdAjL.jpg) [**S5 Coupler Locks Demco 2-5/16 Adjustable Coupler Lock (LCS002 Demco) Custom Fit for Dump and Equipment Trailers with C-Channel Mounts. (Includes Trimax Puck Lock)**](https://www.amazon.com/dp/B0DMFRBNC5)

S5 Coupler Locks$237.824.8★337%▼falling

7
![Proven Industries Trailer Lock Model 2517-D1 Fits 2 5/16 in Demco Cast Trailer Couplers 2 Keys Included Heavy-Duty Security Hardened Steel Unique Key Design Made in USA Black](https://m.media-amazon.com/images/I/310cDFamqiL.jpg) [**Proven Industries Trailer Lock Model 2517-D1 Fits 2 5/16 in Demco Cast Trailer Couplers 2 Keys Included Heavy-Duty Security Hardened Steel Unique Key Design Made in USA Black**](https://www.amazon.com/dp/B0F4Y2HT47)

Proven Industries$291.184.8★395%▼falling

8
![METOWARE Trailer Tongue Coupler Lock 1/4 Dia 3-1/2 Span Trailer Hitch Lock for Latch-Type Coupler Black Trailer Pin Lock for Towing Trailer RV Car Boat Truck (1 Pack)](https://m.media-amazon.com/images/I/41met+vBPWL.jpg) [**METOWARE Trailer Tongue Coupler Lock 1/4 Dia 3-1/2 Span Trailer Hitch Lock for Latch-Type Coupler Black Trailer Pin Lock for Towing Trailer RV Car Boat Truck (1 Pack)**](https://www.amazon.com/dp/B092C7VB4W)

METOWARE$19.144.6★1,2784%▲rising

9
![BVLLVT Heavy Duty Trailer Hitch Lock for 2 5/16 Ball Coupler - Adjustable Locking Mechanism Design - Anti-Theft Solid Steel Coupler Lock for RV Boat Camper Trailer](https://m.media-amazon.com/images/I/31l1W1yb1HL.jpg) [**BVLLVT Heavy Duty Trailer Hitch Lock for 2 5/16 Ball Coupler - Adjustable Locking Mechanism Design - Anti-Theft Solid Steel Coupler Lock for RV Boat Camper Trailer**](https://www.amazon.com/dp/B0F5HTHQFH)

BVLLVT$80.494.4★1044%—flat

10

![61130 Gooseneck Trailer Coupler Lock Fits 2-5/16 Ball Couplers Compatible with EZ Latch Style Couplers Used by Major Trailer Brands (Cast Only) Heavy Duty Anti-Theft Lock Not for Stamped Models](https://m.media-amazon.com/images/I/41gCy9hIj6L.jpg) [**61130 Gooseneck Trailer Coupler Lock Fits 2-5/16 Ball Couplers Compatible with EZ Latch Style Couplers Used by Major Trailer Brands (Cast Only) Heavy Duty Anti-Theft Lock Not for Stamped Models**](https://www.amazon.com/dp/B0GWLLZTRJ)

Eachave$58.794.6★93%▲rising

11

![InfiniteRule Security 61180 | Trailer Latch Lock for DEMCO EZ Latch 2-5/16 Ball Stamped Coupler - Does NOT FIT Cast Model](https://m.media-amazon.com/images/I/21EBoBvq6zL.jpg) [**InfiniteRule Security 61180 | Trailer Latch Lock for DEMCO EZ Latch 2-5/16 Ball Stamped Coupler - Does NOT FIT Cast Model**](https://www.amazon.com/dp/B0FL8ZF6TS)

InfiniteRule Security$61.933.3★63%—flat

12

![NUOVEPE Trailer Lock Fits 2 5/16 Inch Couplers Secures Safety Chains Anti-Theft Ball Hitch Lock Pry-Resistant & Heavy-Duty Trailer Hitch Locks for RV | Cargo | Camper | Dump Trailer (Blue)](https://m.media-amazon.com/images/I/41EGYeQ4Y-L.jpg) [**NUOVEPE Trailer Lock Fits 2 5/16 Inch Couplers Secures Safety Chains Anti-Theft Ball Hitch Lock Pry-Resistant & Heavy-Duty Trailer Hitch Locks for RV | Cargo | Camper | Dump Trailer (Blue)**](https://www.amazon.com/dp/B0DFH5NMCT)

NUOVEPE$110.174.7★1713%—flat

13

![Demco 2 Bolt-on Coupler for 3 Wide Tongue EZ-Latch 7 000lb Capacity Silver](https://m.media-amazon.com/images/I/31ubC6YJdcL.jpg) [**Demco 2 Bolt-on Coupler for 3 Wide Tongue EZ-Latch 7 000lb Capacity Silver**](https://www.amazon.com/dp/B0CSLT73MH)

Demco$49.224.7★632%▼falling

14

![Master Lock 1471DAT Trailer Coupler Latch Lock 3-4/10 Long Shackle x 9/32 Diameter Pin](https://m.media-amazon.com/images/I/31qRStpwPSL.jpg) [**Master Lock 1471DAT Trailer Coupler Latch Lock 3-4/10 Long Shackle x 9/32 Diameter Pin**](https://www.amazon.com/dp/B0000AZ7WJ)

Master Lock$18.134.5★1,5122%—flat

15

![AQBB 14040-81 2-5/16 EZ-Latch Adjustable Coupler Compatible with Demco Trailer Coupler Channel Mount EZ-Latch 2 5/16 Ball-GVWR 21K](https://m.media-amazon.com/images/I/316oC4dpF2L.jpg) [**AQBB 14040-81 2-5/16 EZ-Latch Adjustable Coupler Compatible with Demco Trailer Coupler Channel Mount EZ-Latch 2 5/16 Ball-GVWR 21K**](https://www.amazon.com/dp/B0D8S54T83)

AQBB$66.854.1★492%▲rising

**~~Showing 15 of 21 — show all ~~**

## **Product shelf**

All 21 tracked products in this niche.

Top sellersNewestTrending

[![Demco EZ Latch Trailer Coupler | 2-5/16 Ball | 21 000 lbs | Channel Mount | Heavy-Duty Steel | Zinc Coated | Model 14040-81](https://m.media-amazon.com/images/I/41eGQyd0PML.jpg)**Demco EZ Latch Trailer Coupler | 2-5/16 Ball | 21 000 lbs | Channel Mount | Heavy-Duty Steel | Zinc Coated | Model 14040-81** Demco**$74.29**4.7★183 reviews](https://www.amazon.com/dp/B01N57BQTA) [![InfiniteRule Security 61130 | Trailer Latch Lock for DEMCO EZ Latch 2-5/16 Ball & Gooseneck Couplers - Fits Cast Model Only - Does NOT FIT Stamped Model American Made in USA](https://m.media-amazon.com/images/I/21w7pEXUHuL.jpg)**InfiniteRule Security 61130 | Trailer Latch Lock for DEMCO EZ Latch 2-5/16 Ball & Gooseneck Couplers - Fits Cast Model Only - Does NOT FIT Stamped Model American Made in USA** InfiniteRule Security**$59.04**4.6★86 reviews](https://www.amazon.com/dp/B0CFG7NNTG) [![VEVOR Collar Coupler Lock Fits 2 & 2-5/16-Inch Demco Cast Head Couplers Trailer Hitch Lock with 3 Keys Secures Security Chains Rust-Resistant Anti-Theft RV Trailer Locks for RV Trailer Boat](https://m.media-amazon.com/images/I/41xPaliEdrL.jpg)**VEVOR Collar Coupler Lock Fits 2 & 2-5/16-Inch Demco Cast Head Couplers Trailer Hitch Lock with 3 Keys Secures Security Chains Rust-Resistant Anti-Theft RV Trailer Locks for RV Trailer Boat** VEVOR**$60.51**4.4★17 reviews](https://www.amazon.com/dp/B0FHWJQPM6) [![InfiniteRule Security 61121 | Trailer Latch Lock for DEMCO EZ Latch - 2.0 Ball](https://m.media-amazon.com/images/I/21w7pEXUHuL.jpg)**InfiniteRule Security 61121 | Trailer Latch Lock for DEMCO EZ Latch - 2.0 Ball** InfiniteRule Security**$58.51**4.6★33 reviews](https://www.amazon.com/dp/B0BRY14B4N) [![Proven Industries Trailer Lock Model 2517-D1 Fits 2 5/16 in Demco Cast Trailer Couplers 2 Keys Included Heavy-Duty Security Hardened Steel Unique Key Design Made in USA Blue](https://m.media-amazon.com/images/I/31hXTL7QFZL.jpg)**Proven Industries Trailer Lock Model 2517-D1 Fits 2 5/16 in Demco Cast Trailer Couplers 2 Keys Included Heavy-Duty Security Hardened Steel Unique Key Design Made in USA Blue** Proven Industries**$290.70**4.8★39 reviews](https://www.amazon.com/dp/B0F4T87582) [![S5 Coupler Locks Demco 2-5/16 Adjustable Coupler Lock (LCS002 Demco) Custom Fit for Dump and Equipment Trailers with C-Channel Mounts. (Includes Trimax Puck Lock)](https://m.media-amazon.com/images/I/41toufCdAjL.jpg)**S5 Coupler Locks Demco 2-5/16 Adjustable Coupler Lock (LCS002 Demco) Custom Fit for Dump and Equipment Trailers with C-Channel Mounts. (Includes Trimax Puck Lock)** S5 Coupler Locks**$237.82**4.8★33 reviews](https://www.amazon.com/dp/B0DMFRBNC5) [![Proven Industries Trailer Lock Model 2517-D1 Fits 2 5/16 in Demco Cast Trailer Couplers 2 Keys Included Heavy-Duty Security Hardened Steel Unique Key Design Made in USA Black](https://m.media-amazon.com/images/I/310cDFamqiL.jpg)**Proven Industries Trailer Lock Model 2517-D1 Fits 2 5/16 in Demco Cast Trailer Couplers 2 Keys Included Heavy-Duty Security Hardened Steel Unique Key Design Made in USA Black** Proven Industries**$291.18**4.8★39 reviews](https://www.amazon.com/dp/B0F4Y2HT47) [![METOWARE Trailer Tongue Coupler Lock 1/4 Dia 3-1/2 Span Trailer Hitch Lock for Latch-Type Coupler Black Trailer Pin Lock for Towing Trailer RV Car Boat Truck (1 Pack)](https://m.media-amazon.com/images/I/41met+vBPWL.jpg)**METOWARE Trailer Tongue Coupler Lock 1/4 Dia 3-1/2 Span Trailer Hitch Lock for Latch-Type Coupler Black Trailer Pin Lock for Towing Trailer RV Car Boat Truck (1 Pack)** METOWARE**$19.14**4.6★1,278 reviews](https://www.amazon.com/dp/B092C7VB4W)

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Quality-Overall**20%

*“Excellent product”*

**Size-Overall**16%

*“Fits like a GLOVE”*

**Advertised Vs Actual Product**8%

*“as advertised”*

**Ease Of Use**8%

*“Ease of use”*

**Value For Money**7%

*“Worth the money”*

**Assembly/Installation**6%

*“Easy install”*

**Design-Overall**5%

*“Perfect design”*

**Strength**5%

*“Its built heavy duty”*

**Efficiency**5%

*“Works well”*

**Weight Heavy**3%

*“Heavy duty”*

### **What buyers complain about **

**Size-Overall**18%

*“it was too short”*

**Durability**10%

*“the ball broke off”*

**Ease Of Use**7%

*“Such a pain”*

**Value For Money**6%

*“Its not cheap”*

**Quality-Overall**6%

*“Low quality”*

**Compatibility-Overall**5%

*“Does not fit BTex Trailer”*

**Hard Feel**4%

*“it is tough”*

**Weight Heavy**3%

*“its heavy and would be difficult to impossible to get off without the key”*

**Mechanism Issues**3%

*“faulty mechanism”*

**Design-Overall**3%

*“Built like a tank”*

#### **Top return reasons**- Size-Overall62% - Compatibility-Overall20% - Mechanism Issues3% - Advertised Vs Actual Product3% - Functionality-Overall3% - Width1% - Value For Money1% - Defective Material/Parts1% - Assembly/Installation1% - Quality-Overall0%