---
title: "2 5/16 Trailer Hitch Lock — $407K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/2-5-16-trailer-hitch-lock"
last_updated: "2026-08-09T06:15:16.460Z"
locale: en
meta:
description: "Niche score 59/100 · $407K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 59/100 · $407K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "2 5/16 Trailer Hitch Lock — $407K/yr Amazon US Niche (2026) - Flapen"
---
# **2 5/16 trailer hitch lock**
**Worth a look**
Shows a sweet-spot price point ($71.42 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 56Growth 55Conversion 63Competition 78Returns 46Price range 30Avg price 85Brand share 75Review moat 44Quality gap 42
**Avg price**
**Great****$71.42**
avg listing price — sweet spot $15–$100
**Competition**
**Great****37%**
top-5 click share — an open shelf
**Brand share**
**Good****60%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Good****5.5%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$407K**
$407K/yr · 103K searches
**Growth**
**Good****+27.3%**
90-day search growth — must beat 0% to launch
**Returns**
**Okay****3.3%**
return rate — above 5% kills the launch gate
**Review moat**
**Okay****2,054.59**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Price range**
**Okay****$10.06–$290.70**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, 2 5/16 trailer hitch lock is a $407K/yr Amazon United States market (103K searches/yr). The top 5 brands hold 60% of demand. Demand peaks in Apr. Verdict: Worth a look — 59/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **2 5/16 trailer hitch lock market data**
- **Units sold / yr**
- **6K–8K**
- avg 100–250/product
- **Revenue / yr**
- **$429K–$571K**
- units × avg price
- **Conversion rate**
- **5.5%**
- **Avg BSR**
- **#121**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **6.1%**
- **Avg brand age**
- **39 months**
- **Avg seller age**
- **163 days**
## **Competition & brand share**
Clicks spread well past the top 5 (37% combined) — an open shelf where new products get seen.
**Brands**
**29 **▲rising
**Sellers**
**150**
**Top-5 brand share**
**60%**
Top 20: 94%
**Top-5 click share**
**37%**
Top 20: 73%
**Open market**
**33%**
- Master Lock21% - Rhino USA13% - RETRUE10% - NUOVEPE8% - BVLLVT7% - METOWARE6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +27.3% search growth over the last 90 days.
3K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/us/automotive/2-5-16-trailer-hitch-lock/trend)
## **Top 2 5/16 trailer hitch lock search terms**
- **2 5/16 ball hitch lock**30K/yr+24.0%5.3% conv. - **heavy duty trailer lock**10K/yr+33.6%2.1% conv. - **2 5/16 trailer lock**12K/yr+2.1%5.5% conv. - **trailer hitch locks 2 5/16**8K/yr+49.8%5.0% conv. - **master lock trailer hitch lock**7K/yr+41.6%7.8% conv. - **2 5/16 hitch lock**4K/yr+69.8%5.8% conv. - **trailer coupler lock 2 5/16**5K/yr+60.0%4.7% conv. - **trailer tongue lock 2 5/16**7K/yr-15.5%6.7% conv. - **reese hitch lock**5K/yr+41.5%4.4% conv. - **master lock trailer lock**4K/yr+37.1%5.0% conv. [**All search terms **](https://flapen.com/research/us/automotive/2-5-16-trailer-hitch-lock/search-terms)
## **Top 2 5/16 trailer hitch 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%3%$12K6%$24K9%$37K12%$49K1101001K10K100K 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**Rhino USA Trailer Hitch Lock Kit (for 2-5/16 Trailers) Heavy Duty Anti Theft Trailer Coupler Locks for RV Camper Trailer Boat Caravan - Reinforced Solid Steel Tow Lock for Trailer Tongue**Rhino USA**$53.81**4.4★2,328 rev](https://www.amazon.com/dp/B09J9T8NT2) [2**Master Lock Black Universal Size Trailer Hitch Lock Trailer Coupler Lock for Securing RVs Horse Trailers Tool Trailers and More 379ATPY**Master Lock**$36.93**4.6★5,947 rev](https://www.amazon.com/dp/B000L9QRE8) [3**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**BVLLVT**$80.49**4.4★104 rev](https://www.amazon.com/dp/B0F5HTHQFH) [4**Master Lock Trailer Coupler Lock Universal Size Fits 1-7/8 2 and 2-5/16 389DAT**Master Lock**$32.94**4.7★17,428 rev](https://www.amazon.com/dp/B01MYCT0LG) [5**METOWARE Universal Trailer Hitch Locks Adjustable Heavy-Duty Trailer Coupler Ball Locks Fit 1-7/8 Inch 2 Inch 2-5/16 Inch Couplers with 2 Keys**METOWARE**$34.73**4.7★433 rev](https://www.amazon.com/dp/B0CZ3LWNJJ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**2 5/16Inch-Trailer-Hitch-Locks-Kit Heavy Duty Anti Theft Trailer Tongue Lock Reinforced Solid Steel Weatherproof Tow Coupler Lock Trailer Locks Ball Hitch for RV Camper Cargo Boat Caravan**NUOVEPE**$41.04**85 rev8mo ago](https://www.amazon.com/dp/B0FPWPZ8YL) [**Kaowuzz Trailer Lock Heavy Duty Trailer Ball Lock Fits 2 5/16-Inch Couplers Anti-Theft Anti-Smashing Secures Safety Chains Solid Steel Towing Hitch Accessories for RV Cargo Boat (with Handle)**Kaowuzz**$60.20**39 rev8mo ago](https://www.amazon.com/dp/B0FQJC4ZVB) [**Trailer Hitch Lock Kit (for 2-5/16 Trailers) Heavy Duty Anti Theft Trailer Coupler Locks for RV Camper Trailer Boat Caravan - Reinforced Solid Steel Tow Lock for Trailer Tongue (2-5/16in)**TOWBUBING**$40.18**97 rev10mo ago](https://www.amazon.com/dp/B0FQMF4CXN) [**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**BVLLVT**$80.49**104 rev1y ago](https://www.amazon.com/dp/B0F5HTHQFH) [**RETRUE Heavy Duty Trailer Lock Fits 2 5/16-Inch Couplers Ball Coupler&Safety Chains Anti-Theft Trailer Hitch Locks for RV Cargo Boat Dump Trailer (Black)**RETRUE**$80.86**8 rev1y ago](https://www.amazon.com/dp/B0FCXVZMVW)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Proven Industries Model 2516 Heavy-Duty Trailer Coupler Lock for 2 5/16 Couplers RV & Trailer Anti-Theft Lock Made in USA**Proven Industries**$270.72**4.7★**▲ 126%**](https://www.amazon.com/dp/B0G31418YZ) [**RETRUE Heavy-Duty Universal Widened Coupler Lock Fits 2-5/16 Inch Trailer Ball Locks Hitch Trailer Hitch Lock Adjustable Security Steel Fits 1-7/8 Inch 2 Inch 2-5/16 Inch Couplers Upgraded Gray**RETRUE**$37.11**4.6★**▲ 121%**](https://www.amazon.com/dp/B0F32HYY1F) [**RETRUE Heavy Duty Trailer Lock Fits 2 5/16-Inch Couplers Ball Coupler&Safety Chains Anti-Theft Trailer Hitch Locks for RV Cargo Boat Dump Trailer (Black)**RETRUE**$80.86**5.0★**▲ 94%**](https://www.amazon.com/dp/B0FCXVZMVW) [**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★**▲ 91%**](https://www.amazon.com/dp/B098W45GM2) [**Kaowuzz Trailer Lock Heavy Duty Trailer Ball Lock Fits 2 5/16-Inch Couplers Anti-Theft Anti-Smashing Secures Safety Chains Solid Steel Towing Hitch Accessories for RV Cargo Boat (with Handle)**Kaowuzz**$60.20**4.6★**▲ 58%**](https://www.amazon.com/dp/B0FQJC4ZVB)
**~~View all trending →~~**
## **What buyers say about 2 5/16 trailer hitch lock**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**18%
*“First off, the build quality is impressive”*
**Size-Overall**14%
*“Fits like a GLOVE”*
**Ease Of Use**9%
*“Ease of use”*
**Value For Money**9%
*“less expensive”*
**Advertised Vs Actual Product**8%
*“As Advertised”*
**Strength**8%
*“Heavy duty”*
**Assembly/Installation**5%
*“Easy install”*
**Efficiency**4%
*“Effective”*
**Weight Heavy**4%
*“It's very heavy and sturdy”*
**Durability**3%
*“I also appreciate that the materials feel durable and weather resistant, especially since theyre being used outdoors”*
### **What buyers complain about **
**Size-Overall**28%
*“Its too short”*
**Quality-Overall**11%
*“Bad quality”*
**Durability**7%
*“it broke into pieces”*
**Ease Of Use**5%
*“not user friendly”*
**Rusts/Corrodes**4%
*“Starting to rust”*
**Functionality-Overall**3%
*“Dose not work at all”*
**Compatibility-Overall**3%
*“My bad, I assumed it was compatible”*
**Value For Money**3%
*“Slightly expensive”*
**Strength**2%
*“Not very robust”*
**Weight Heavy**2%
*“The whole unit has a heavy”*
### **Top return reasons **
**Size-Overall**61%
**Compatibility-Overall**18%
**Advertised Vs Actual Product**4%
**Mechanism Issues**4%
**Functionality-Overall**2%
**Width**2%
**Value For Money**2%
**Defective Material/Parts**1%
**Locking Mechanism**1%
**Product Condition**1%
## **Common questions**
- **Is 2 5/16 trailer hitch lock profitable to sell on Amazon United States?**
- The niche generates $407K/yr across 54 tracked products. 7 of 11 products launched in the last 360 days are still selling. 90-day search growth is +27.3%. Flapen's verdict: Worth a look (59/100).
- **How competitive is the 2 5/16 trailer hitch lock niche?**
- 29 brands and 150 sellers compete. The top 5 products take 37% of clicks and top 5 brands hold 60% of demand.
- **What do buyers complain about in 2 5/16 trailer hitch lock?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 3.3%.
- **When does demand for 2 5/16 trailer hitch lock peak?**
- Demand peaks in Apr; the busiest month runs 2.0× the quietest.
- **What does it cost to enter the 2 5/16 trailer hitch lock niche?**
- Listings span $10.06–$290.70; the average listing price is $71.42 (sweet spot $15–$100). The average incumbent carries 2,055 reviews — the moat a new listing must climb.
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