---
title: "Trailer Pin Lock — $106K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/trailer-pin-lock"
last_updated: "2026-08-09T09:34:53.049Z"
locale: en
meta:
description: "Niche score 52/100 · $106K/yr market · 81K searches/yr · $14.94 avg price. A small market ($106K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 52/100 · $106K/yr market · 81K searches/yr · $14.94 avg price. A small market ($106K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Trailer Pin Lock — $106K/yr Amazon US Niche (2026) - Flapen"
---
# **trailer pin lock**
**Worth a look**
Shows searches that convert (8.8% search→purchase), but a small market ($106K/yr) keeps it on the watch list.
Market size 26Growth 72Conversion 82Competition 51Returns 54Price range 77Avg price 75Brand share 35Review moat 40Quality gap 32
**Conversion**
**Great****8.8%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$4.17–$53.21**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$14.94**
avg listing price — sweet spot $15–$100
**Growth**
**Good****+54.4%**
90-day search growth — must beat 0% to launch
**Returns**
**Good****2.8%**
return rate — above 5% kills the launch gate
**Competition**
**Good****55%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Okay****2,464.42**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Okay****84%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$106K**
$106K/yr · 81K searches
According to Flapen's Amazon United States niche tracking, trailer pin lock is a $106K/yr Amazon United States market (81K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in May–Jun–Jul. Verdict: Worth a look — 52/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **trailer pin lock market data**
- **Units sold / yr**
- **6K–8K**
- avg 100–250/product
- **Revenue / yr**
- **$90K–$120K**
- units × avg price
- **Conversion rate**
- **8.8%**
- **Avg BSR**
- **#25**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **2.6%**
- **Avg brand age**
- **45 months**
- **Avg seller age**
- **170 days**
## **Competition & brand share**
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▲rising
**Sellers**
**75**
**Top-5 brand share**
**84%**
Top 20: 100%
**Top-5 click share**
**55%**
Top 20: 96%
**Open market**
**12%**
- Master Lock23% - RETRUE19% - CZC AUTO18% - METOWARE14% - Rhino USA10% - MAXXHAUL4% - Open — no brand owns it (6 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +54.4% search growth over the last 90 days.
2K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May, Jun, Jul · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/us/automotive/trailer-pin-lock/trend)
## **Top trailer pin lock search terms**
- **trailer pin lock**39K/yr+50.5%7.0% conv. - **trailer lock pin**30K/yr+66.2%7.1% conv. - **trailer locking pin**6K/yr+56.4%5.8% conv. - **locking trailer pin**4K/yr+65.1%7.7% conv. - **trailer pin lock for hitch**3K/yr-60.1%5.9% conv. [**All search terms **](https://flapen.com/research/us/automotive/trailer-pin-lock/search-terms)
## **Top trailer pin lock products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$5K10%$11K15%$16K20%$21K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Master Lock Trailer Lock Stainless Steel Adjustable Coupler Latch Lock 2847DAT**Master Lock**$12.15**4.5★3,062 rev](https://www.amazon.com/dp/B001B0QBZ6) [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)**METOWARE**$19.14**4.6★1,278 rev](https://www.amazon.com/dp/B092C7VB4W) [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)**CZC AUTO**$7.86**4.6★8,822 rev](https://www.amazon.com/dp/B07VGX5494) [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**RETRUE**$7.81**4.5★2,208 rev](https://www.amazon.com/dp/B0B286C48R) [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**Rhino USA**$27.13**4.6★10,225 rev](https://www.amazon.com/dp/B07S425715)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**10 Pack NRJSSCC Trailer Coupler Pin and Locking Pin 2-1/8x1/4 Trailer Hitch Pin Heavy Duty Shaft Locking and Wire Lock Pins Hardware Pins for Farm Trailers Towing Lawn Garden Carbon Steel**NRJSSCC**$5.58**74 rev8mo ago](https://www.amazon.com/dp/B0G1HKT51S) [**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**RETRUE**$25.43**52 rev10mo ago](https://www.amazon.com/dp/B0FP1VC8ML) [**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**JUSTTOP**$10.04**528 rev1y ago](https://www.amazon.com/dp/B0FH22JFVV) [**Orion Motor Tech Locking Hitch Pin Fits 2 Receiver with 5/8 Diameter Hitch Pin Lock Anti-Theft Steel Hitch Pin Lock with Key for Class III IV Hitches Anti-Rattle Trailer Hitch Pin with O-Rings**Orion Motor Tech**$9.99**396 rev1y ago](https://www.amazon.com/dp/B0FGPXZCH8) [**YIQQPLOS 2 Pack Premium Safety Coupler Pin 1/4 x 3.15(6.3mm x 80mm) High-Quality Trailer Pin Pto Pin Shaft Locking Pin Square Wire Lock Pin for Farm Trailers Towing Lawn**yiqqplos**$4.17**303 rev1y ago](https://www.amazon.com/dp/B0DHCSPYF1)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**10 Pack NRJSSCC Trailer Coupler Pin and Locking Pin 2-1/8x1/4 Trailer Hitch Pin Heavy Duty Shaft Locking and Wire Lock Pins Hardware Pins for Farm Trailers Towing Lawn Garden Carbon Steel**NRJSSCC**$5.58**4.8★**▲ 139%**](https://www.amazon.com/dp/B0G1HKT51S) [**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**RETRUE**$25.43**4.7★**▲ 117%**](https://www.amazon.com/dp/B0FP1VC8ML) [**RETRUE Trailer Hitch Locks 5/8 Locking Hitch Pin for 2 and 2 1/2 Receiver Class III IV Hitch Tow Hitch Pin Lock Dia 3-1/2 Long Pin with O-Rings Weatherproof Caps for Trailer Truck Car Boat**RETRUE**$11.36**4.6★**▲ 98%**](https://www.amazon.com/dp/B0BCL3FVKY) [**Rhino USA Trailer Hitch Lock Kit (for 2 Trailers) Heavy Duty Anti Theft Trailer Coupler Locks for RV Camper Trailer Boat Caravan - Reinforced Solid Steel Tow Lock for Trailer Tongue**Rhino USA**$53.21**4.4★**▲ 84%**](https://www.amazon.com/dp/B098W45GM2) [**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**JUSTTOP**$10.04**4.7★**▲ 78%**](https://www.amazon.com/dp/B0FH22JFVV)
**~~View all trending →~~**
## **What buyers say about trailer pin lock**
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-Overall**68%
**Compatibility-Overall**13%
**Advertised Vs Actual Product**5%
**Mechanism Issues**2%
**Functionality-Overall**2%
**Width**2%
**Value For Money**1%
**Locking Mechanism**1%
**Defective Material/Parts**1%
**Quality-Overall**1%
## **Common questions**
- **Is trailer pin lock profitable to sell on Amazon United States?**
- The niche generates $106K/yr across 24 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +54.4%. Flapen's verdict: Worth a look (52/100).
- **How competitive is the trailer pin lock niche?**
- 12 brands and 75 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 84% of demand.
- **What do buyers complain about in trailer pin lock?**
- Top complaints mined from reviews: Size-Overall, Durability, Quality-Overall. The return rate is 2.8%.
- **When does demand for trailer pin lock peak?**
- Demand peaks in May–Jun–Jul; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the trailer pin lock niche?**
- Listings span $4.17–$53.21; the average listing price is $14.94 (sweet spot $15–$100). The average incumbent carries 2,464 reviews — the moat a new listing must climb.
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