---
title: "trailer pin lock — Niche Verdict: Skip it (45/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/trailer-pin-lock"
last_updated: "2026-07-10T02:27:59.008Z"
locale: en
meta:
  description: "a small market ($106K/yr) — trailer pin lock doesn't clear our bar today."
  "og:description": "a small market ($106K/yr) — trailer pin lock doesn't clear our bar today."
  "og:title": "trailer pin lock — Niche Verdict: Skip it (45/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **trailer pin lock**

**Skip it****45/100 **

a small market ($106K/yr) — trailer pin lock doesn't clear our bar today.

**Market/yr**

**$106K**

**Growth (1y)**

**+164.5%**

**Products**

**24**

**Brands**

**12**

was 10 a year ago

**Sellers**

**75**

**Price range**

**$4.17–$53.21**

**Returns**

**2.8%**

**Rating**

**4.6★**

**Skip it**

Scored 45/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns

Market size

**5**

 ×0.30

Growth

**73**

 ×0.30

Competition

**53**

 ×0.20

Quality gap

**34**

 ×0.10

Returns

**77**

 ×0.10

## **Demand**

Weekly Amazon search volume, last 104 weeks — +164.5% year over year.

2K1KSpike '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

## **Seasonality**

Monthly demand index across the year — 1.00 is average.

JFMAMJJASOND

Peak months: May, Jun, Jul · busiest ÷ quietest = 2.1×

## **Competition**

- Master Lock23% - RETRUE19% - CZC AUTO18% - METOWARE14% - Rhino USA10% - MAXXHAUL4% - Other (6 brands)12%

The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them. 12 brands and 75 sellers compete here.

**Brands**

**12 **▲rising

was 10 a year ago

**Sellers**

**75**

**Top 5 brand share**

**84%**

#ProductBrandPriceRatingReviewsClick shareTrend

1
![Master Lock Trailer Lock Stainless Steel Adjustable Coupler Latch Lock 2847DAT](https://m.media-amazon.com/images/I/31M7L7SvKpL.jpg) [**Master Lock Trailer Lock Stainless Steel Adjustable Coupler Latch Lock 2847DAT**](https://www.amazon.com/dp/B001B0QBZ6)

Master Lock$12.154.5★3,06216%▲rising

2
![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★1,27813%▼falling

3
![CZC AUTO Black Trailer Hitch Coupler Lock Dia 1/4 Inch 3/4 Inch Span for Tow Boat RV Truck Cars Coupler (1 Pack Black)](https://m.media-amazon.com/images/I/41gECGUSzRL.jpg) [**CZC AUTO Black Trailer Hitch Coupler Lock Dia 1/4 Inch 3/4 Inch Span for Tow Boat RV Truck Cars Coupler (1 Pack Black)**](https://www.amazon.com/dp/B07VGX5494)

CZC AUTO$7.864.6★8,82210%▼falling

4
![RETRUE Trailer Tongue Coupler Lock Trailer Hitch Lock Dia 1/4 Inch 3/4 Inch Span for Tow Boat RV Truck Cars Coupler Black](https://m.media-amazon.com/images/I/31Hp3-lzVKL.jpg) [**RETRUE Trailer Tongue Coupler Lock Trailer Hitch Lock Dia 1/4 Inch 3/4 Inch Span for Tow Boat RV Truck Cars Coupler Black**](https://www.amazon.com/dp/B0B286C48R)

RETRUE$7.814.5★2,20810%▲rising

5
![Rhino USA 2 Trailer Hitch Pin Patented 5/8 Locking Receiver Pin for Class III/IV Hitches Weatherproof Anti-Theft Debris-Protected Tow Truck Ready Black 1PK](https://m.media-amazon.com/images/I/41pZJDPD7eL.jpg) [**Rhino USA 2 Trailer Hitch Pin Patented 5/8 Locking Receiver Pin for Class III/IV Hitches Weatherproof Anti-Theft Debris-Protected Tow Truck Ready Black 1PK**](https://www.amazon.com/dp/B07S425715)

Rhino USA$27.134.6★10,2256%▼falling

6
![CZC AUTO Hitch Receiver Pin Lock Trailer Receiver Lock with 5/8 Pin for Class III IV 2 and 2-1/2 Receiver for Hitch Bike Rack Tray Ball Tow Rope for Trailer Truck Car Boat (1 Pack 5/8 inch pin)](https://m.media-amazon.com/images/I/41k7V1lTElL.jpg) [**CZC AUTO Hitch Receiver Pin Lock Trailer Receiver Lock with 5/8 Pin for Class III IV 2 and 2-1/2 Receiver for Hitch Bike Rack Tray Ball Tow Rope for Trailer Truck Car Boat (1 Pack 5/8 inch pin)**](https://www.amazon.com/dp/B07M6W71JJ)

CZC AUTO$13.784.6★9,1385%▼falling

7
![MaxxHaul Trailer Tongue Coupler Lock - Adjustable Trailer Tongue Pin 1/4 Diameter Fits 1 to 3 Latch-Type Coupler for RV Truck Towing](https://m.media-amazon.com/images/I/31X2lQhQYiL.jpg) [**MaxxHaul Trailer Tongue Coupler Lock - Adjustable Trailer Tongue Pin 1/4 Diameter Fits 1 to 3 Latch-Type Coupler for RV Truck Towing**](https://www.amazon.com/dp/B09QPHPXWR)

MAXXHAUL$11.104.6★4534%—flat

8
![Pinailer Pack of 10 Trailer Pin 2-3/4 x 1/4 (L x W) Featuring PTO Pins Lock Pins Trailer Hitch Pins and Shaft Locking Coupler Pins for Farm Trailers Towing Lawn Equipment and Hitches](https://m.media-amazon.com/images/I/51jhCSsDQIL.jpg) [**Pinailer Pack of 10 Trailer Pin 2-3/4 x 1/4 (L x W) Featuring PTO Pins Lock Pins Trailer Hitch Pins and Shaft Locking Coupler Pins for Farm Trailers Towing Lawn Equipment and Hitches**](https://www.amazon.com/dp/B09CLRW2C3)

PINAILER$9.184.8★7444%▼falling

9
![Master Lock 605DAT Shackle 15/16 Length x 7/16 Inner Width 2 Body Width Solid Brass Coupler Lock](https://m.media-amazon.com/images/I/41exbtw7v+L.jpg) [**Master Lock 605DAT Shackle 15/16 Length x 7/16 Inner Width 2 Body Width Solid Brass Coupler Lock**](https://www.amazon.com/dp/B00004SQM5)

Master Lock$13.004.5★1,5253%—flat

10

![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★1,5123%—flat

11

![CZC AUTO Trailer Tongue Coupler Lock Dia 1/4 Inch 2-1/2 Inch Span Fits Latch-type Coupler for Towing Boat Truck RV Car Trailer](https://m.media-amazon.com/images/I/41Y5weEYtCS.jpg) [**CZC AUTO Trailer Tongue Coupler Lock Dia 1/4 Inch 2-1/2 Inch Span Fits Latch-type Coupler for Towing Boat Truck RV Car Trailer**](https://www.amazon.com/dp/B07ZR7JKV7)

CZC AUTO$10.114.2★2,3773%▲rising

12

![RETRUE Cyber Lock Heavy Duty Trailer Coupler Lock Upgraded Trailer Lock with Extra Wide 1.2 Span & 1/4 Diameter Anti-Theft Tongue Locks for RVs Boats Trucks Tow Hitch Security Accessory-Silver](https://m.media-amazon.com/images/I/31GzQxFuW6L.jpg) [**RETRUE Cyber Lock Heavy Duty Trailer Coupler Lock Upgraded Trailer Lock with Extra Wide 1.2 Span & 1/4 Diameter Anti-Theft Tongue Locks for RVs Boats Trucks Tow Hitch Security Accessory-Silver**](https://www.amazon.com/dp/B0FP1VC8ML)

RETRUE$25.434.7★523%▲rising

13

![JUSTTOP Trailer Hitch Receiver Pin Lock 5/8 Dia 3-1/2 Long Pin Trailer Lock for Class III IV 2 and 2-1/2 Receiver Tow Hitch Pin Lock with 4 Anti-Rattle Rubber O-Rings for Trailer Truck Car Boat](https://m.media-amazon.com/images/I/41CoBPkthxL.jpg) [**JUSTTOP Trailer Hitch Receiver Pin Lock 5/8 Dia 3-1/2 Long Pin Trailer Lock for Class III IV 2 and 2-1/2 Receiver Tow Hitch Pin Lock with 4 Anti-Rattle Rubber O-Rings for Trailer Truck Car Boat**](https://www.amazon.com/dp/B0FH22JFVV)

JUSTTOP$10.044.7★5283%▲rising

14

![RETRUE Trailer Tongue Coupler Lock Adjustable Tongue Pin 1/4 Diameter Fits 1/2 to 3 Latch-Type Coupler for Trailer RV Truck Towing](https://m.media-amazon.com/images/I/31p3A5CIsZL.jpg) [**RETRUE Trailer Tongue Coupler Lock Adjustable Tongue Pin 1/4 Diameter Fits 1/2 to 3 Latch-Type Coupler for Trailer RV Truck Towing**](https://www.amazon.com/dp/B0D93RLG7W)

RETRUE$9.654.2★762%▲rising

15

![RETRUE Trailer Tongue Coupler Lock Dia 1/4 Inch 3-1/2 Inch Span Trailer Latch Lock for Latch-Type Coupler Tow Boat RV Truck Cars Black (1 Pack)](https://m.media-amazon.com/images/I/31rEDmMk1CL.jpg) [**RETRUE Trailer Tongue Coupler Lock Dia 1/4 Inch 3-1/2 Inch Span Trailer Latch Lock for Latch-Type Coupler Tow Boat RV Truck Cars Black (1 Pack)**](https://www.amazon.com/dp/B0CF527RWS)

RETRUE$17.164.4★1402%▲rising

**~~Showing 15 of 24 — show all ~~**

## **Product shelf**

All 24 tracked products in this niche.

Top sellersNewestTrending

[![Master Lock Trailer Lock Stainless Steel Adjustable Coupler Latch Lock 2847DAT](https://m.media-amazon.com/images/I/31M7L7SvKpL.jpg)**Master Lock Trailer Lock Stainless Steel Adjustable Coupler Latch Lock 2847DAT** Master Lock**$12.15**4.5★3,062 reviews](https://www.amazon.com/dp/B001B0QBZ6) [![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) [![CZC AUTO Black Trailer Hitch Coupler Lock Dia 1/4 Inch 3/4 Inch Span for Tow Boat RV Truck Cars Coupler (1 Pack Black)](https://m.media-amazon.com/images/I/41gECGUSzRL.jpg)**CZC AUTO Black Trailer Hitch Coupler Lock Dia 1/4 Inch 3/4 Inch Span for Tow Boat RV Truck Cars Coupler (1 Pack Black)** CZC AUTO**$7.86**4.6★8,822 reviews](https://www.amazon.com/dp/B07VGX5494) [![RETRUE Trailer Tongue Coupler Lock Trailer Hitch Lock Dia 1/4 Inch 3/4 Inch Span for Tow Boat RV Truck Cars Coupler Black](https://m.media-amazon.com/images/I/31Hp3-lzVKL.jpg)**RETRUE Trailer Tongue Coupler Lock Trailer Hitch Lock Dia 1/4 Inch 3/4 Inch Span for Tow Boat RV Truck Cars Coupler Black** RETRUE**$7.81**4.5★2,208 reviews](https://www.amazon.com/dp/B0B286C48R) [![Rhino USA 2 Trailer Hitch Pin Patented 5/8 Locking Receiver Pin for Class III/IV Hitches Weatherproof Anti-Theft Debris-Protected Tow Truck Ready Black 1PK](https://m.media-amazon.com/images/I/41pZJDPD7eL.jpg)**Rhino USA 2 Trailer Hitch Pin Patented 5/8 Locking Receiver Pin for Class III/IV Hitches Weatherproof Anti-Theft Debris-Protected Tow Truck Ready Black 1PK** Rhino USA**$27.13**4.6★10,225 reviews](https://www.amazon.com/dp/B07S425715) [![CZC AUTO Hitch Receiver Pin Lock Trailer Receiver Lock with 5/8 Pin for Class III IV 2 and 2-1/2 Receiver for Hitch Bike Rack Tray Ball Tow Rope for Trailer Truck Car Boat (1 Pack 5/8 inch pin)](https://m.media-amazon.com/images/I/41k7V1lTElL.jpg)**CZC AUTO Hitch Receiver Pin Lock Trailer Receiver Lock with 5/8 Pin for Class III IV 2 and 2-1/2 Receiver for Hitch Bike Rack Tray Ball Tow Rope for Trailer Truck Car Boat (1 Pack 5/8 inch pin)** CZC AUTO**$13.78**4.6★9,138 reviews](https://www.amazon.com/dp/B07M6W71JJ) [![MaxxHaul Trailer Tongue Coupler Lock - Adjustable Trailer Tongue Pin 1/4 Diameter Fits 1 to 3 Latch-Type Coupler for RV Truck Towing](https://m.media-amazon.com/images/I/31X2lQhQYiL.jpg)**MaxxHaul Trailer Tongue Coupler Lock - Adjustable Trailer Tongue Pin 1/4 Diameter Fits 1 to 3 Latch-Type Coupler for RV Truck Towing** MAXXHAUL**$11.10**4.6★453 reviews](https://www.amazon.com/dp/B09QPHPXWR) [![Pinailer Pack of 10 Trailer Pin 2-3/4 x 1/4 (L x W) Featuring PTO Pins Lock Pins Trailer Hitch Pins and Shaft Locking Coupler Pins for Farm Trailers Towing Lawn Equipment and Hitches](https://m.media-amazon.com/images/I/51jhCSsDQIL.jpg)**Pinailer Pack of 10 Trailer Pin 2-3/4 x 1/4 (L x W) Featuring PTO Pins Lock Pins Trailer Hitch Pins and Shaft Locking Coupler Pins for Farm Trailers Towing Lawn Equipment and Hitches** PINAILER**$9.18**4.8★744 reviews](https://www.amazon.com/dp/B09CLRW2C3)

## **Reviews**

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

### **What buyers love **

**Quality-Overall**26%

*“excellent build quality”*

**Advertised Vs Actual Product**12%

*“As advertised”*

**Size-Overall**11%

*“Fits like a GLOVE”*

**Value For Money**10%

*“Good value for money”*

**Ease Of Use**7%

*“Ease of use”*

**Strength**7%

*“Solid construction”*

**Efficiency**7%

*“Does the Job Nicely”*

**Durability**3%

*“Very Durable”*

**Locking Mechanism**2%

*“Very nice hitch lock”*

**Assembly/Installation**2%

*“Easy install”*

### **What buyers complain about **

**Size-Overall**22%

*“Really long”*

**Durability**11%

*“Failed on first use”*

**Quality-Overall**11%

*“Where is the quality control”*

**Rusts/Corrodes**6%

*“Could rust up”*

**Compatibility-Overall**5%

*“Does not fit Rivian”*

**Value For Money**4%

*“Slightly expensive”*

**Advertised Vs Actual Product**4%

*“Improper description”*

**Ease Of Use**3%

*“a pain to use”*

**Strength**3%

*“Not as strong as I was expecting”*

**Locking Mechanism**3%

*“Only issue I have with the lock is difficult to lock”*

#### **Top return reasons**- Size-Overall68% - Compatibility-Overall13% - Advertised Vs Actual Product5% - Mechanism Issues2% - Functionality-Overall2% - Width2% - Value For Money1% - Locking Mechanism1% - Defective Material/Parts1% - Quality-Overall1%