---
title: "Kingpin Lock — $282K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/kingpin-lock"
last_updated: "2026-08-06T18:36:15.821Z"
locale: en
meta:
description: "Niche score 49/100 · $282K/yr market · 71K searches/yr · $61.73 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $282K/yr market · 71K searches/yr · $61.73 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Kingpin Lock — $282K/yr Amazon US Niche (2026) - Flapen"
---
# **kingpin lock**
**Skip it**
Strong incumbent ratings (4.7★) — this niche doesn't clear our bar today.
Market size 50Growth 40Conversion 70Competition 28Returns 78Price range 37Avg price 89Brand share 47Review moat 71Quality gap 22
**Avg price**
**Great****$61.73**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.8%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****672.71**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****6.4%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Good****$282K**
$282K/yr · 71K searches
**Brand share**
**Okay****77%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+12.2%**
90-day search growth — must beat 0% to launch
**Price range**
**Okay****$21.08–$235.04**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Competition**
**Okay****68%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**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, kingpin lock is a $282K/yr Amazon United States market (71K searches/yr). The top 5 brands hold 77% of demand. Verdict: Skip it — 49/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **kingpin lock market data**
- **Units sold / yr**
- **5K–6K**
- avg 250–500/product
- **Revenue / yr**
- **$309K–$370K**
- units × avg price
- **Conversion rate**
- **6.4%**
- **Avg BSR**
- **#157**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **64 months**
- **Avg seller age**
- **166 days**
## **Competition & brand share**
The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**11 **▼falling
**Sellers**
**20**
**Top-5 brand share**
**77%**
Top 20: 100%
**Top-5 click share**
**68%**
Top 20: 100%
**Open market**
**16%**
- BOYISEN40% - RVMATE11% - METOWARE11% - Trimax8% - BYERNAUTO7% - CURT7% - Open — no brand owns it (5 brands, 16%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +12.2% search growth over the last 90 days.
2K1KSpike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/automotive/kingpin-lock/trend)
## **Top kingpin lock search terms**
- **king pin lock**16K/yr+6.9%4.5% conv. - **5th wheel lock**12K/yr+24.0%5.1% conv. - **kingpin lock**11K/yr+1.1%5.2% conv. - **fifth wheel lock**8K/yr+55.3%5.4% conv. - **5th wheel hitch lock**8K/yr+12.1%5.2% conv. - **king pin locks for 5th wheel**7K/yr-3.3%4.8% conv. - **kingpin lock for semi trailer**4K/yr+6.7%5.8% conv. - **fifth wheel hitch lock**4K/yr-3.5%6.0% conv. [**All search terms **](https://flapen.com/research/us/automotive/kingpin-lock/search-terms)
## **Top kingpin 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%10%$28K20%$56K30%$85K40%$113K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**BOYISEN 5th Wheel King Pin Lock Solid Steel Anti Theft Fifth Wheel Hitch Lock for RVs Semi Trailers and Campers with Handles Warning Tag**BOYISEN**$34.56**4.8★3,053 rev](https://www.amazon.com/dp/B07XD9G55J) [2**RVMATE 5th Wheel Lock Heavy Duty Steel King Pin Lock with Anti-Theft Warning Tag for 5th Wheel/Semi Trailers/RVs/Containers**RVMATE**$21.47**4.8★292 rev](https://www.amazon.com/dp/B0B635KSVY) [3**METOWARE 5th Wheel King Pin Lock with Warning Tag for 5th Wheel RVs Semi Trailers and Campers (Black)**METOWARE**$21.90**4.5★171 rev](https://www.amazon.com/dp/B0CRTX49MB) [4**BOYISEN 5th Wheel King Pin Lock Solid Steel Anti Theft for RVs Container Trailers and Campers with Handles Warning Tag 3 Keys Black**BOYISEN**$34.34**4.8★3,053 rev](https://www.amazon.com/dp/B0C2PJXPK8) [5**Curt 23255 Dumbbell Style King Pin Lock**CURT**$43.28**4.7★1,367 rev](https://www.amazon.com/dp/B0058TF5V2)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Equipment Lock Heavy Duty 5th Wheel King Pin Lock - Powder Coated Steel 5th Wheel Hitch Lock - Anti-Theft Tow Hitch Lock - Secure Fifth Wheel Lock for Theft Prevention & Security (Keyed Differently)**THE EQUIPMENT LOCK COMPANY**$198.36**9 rev4mo ago](https://www.amazon.com/dp/B0GQ5BGMVD) [**BYERN AUTO 5th Wheel King Pin Lock Heavy Duty King Pin Lock with Anti-Theft Warning Tag & 2 Keys Fifth Wheel Hitch Lock for RVs Semi Trailers and Campers (Black)**BYERNAUTO**$21.15**96 rev1y ago](https://www.amazon.com/dp/B0DM8WWDXX) [**BYERN AUTO 5th Wheel King Pin Lock Heavy Duty King Pin Lock with Anti-Theft Warning Tag & 2 Keys Fifth Wheel Hitch Lock for RVs Semi Trailers and Campers (Yellow)**BYERNAUTO**$21.08**96 rev1y ago](https://www.amazon.com/dp/B0DM8W8CKP) [**METOWARE 5th Wheel King Pin Lock with Warning Tag for 5th Wheel RVs Semi Trailers and Campers (Black)**METOWARE**$21.90**171 rev2y ago](https://www.amazon.com/dp/B0CRTX49MB) [**BOYISEN 5th Wheel King Pin Lock Solid Steel Anti Theft for RVs Container Trailers and Campers with Handles Warning Tag 3 Keys Black**BOYISEN**$34.34**3,053 rev3y ago](https://www.amazon.com/dp/B0C2PJXPK8)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Equipment Lock Heavy Duty 5th Wheel King Pin Lock - Powder Coated Steel 5th Wheel Hitch Lock - Anti-Theft Tow Hitch Lock - Secure Fifth Wheel Lock for Theft Prevention & Security (Keyed Differently)**THE EQUIPMENT LOCK COMPANY**$198.36**4.7★**▲ 247%**](https://www.amazon.com/dp/B0GQ5BGMVD) [**Trimax - TFW80HD - 5th Wheel King Pin Lock -Heavy Duty Anti-Theft Trailer Lock Hardened Steel Weatherproof Full Collar Design Secure Lock Red**Trimax**$86.00**4.6★**▲ 23%**](https://www.amazon.com/dp/B08ND21DCZ) [**RVMATE 5th Wheel Lock Heavy Duty Steel King Pin Lock with Anti-Theft Warning Tag for 5th Wheel/Semi Trailers/RVs/Containers**RVMATE**$21.47**4.8★**▲ 16%**](https://www.amazon.com/dp/B0B635KSVY) [**METOWARE 5th Wheel King Pin Lock with Warning Tag for 5th Wheel RVs Semi Trailers and Campers (Black)**METOWARE**$21.90**4.5★**▲ 14%**](https://www.amazon.com/dp/B0CRTX49MB) [**DC Cargo Mall 5th Wheel King Pin Lock Solid Steel - Weather Resistant Anti-Theft Fifth Wheel Key Lock for RV & Semi Trailers**DC Cargo Mall**$24.94**4.7★**— 9%**](https://www.amazon.com/dp/B0BX25JZB3)
**~~View all trending →~~**
## **What buyers say about kingpin lock**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**17%
*“Excellent quality”*
**Ease Of Use**11%
*“Easy to use”*
**Efficiency**9%
*“Works perfectly”*
**Locking Mechanism**9%
*“Locking mechanism works great”*
**Advertised Vs Actual Product**9%
*“Works as advertised”*
**Size-Overall**8%
*“Fit is good”*
**Strength**8%
*“Sturdy and easy to install”*
**Color**4%
*“Yellow color reminds you that it's there”*
**Durability**4%
*“Very durable, well made”*
**Assembly/Installation**4%
*“Easy to install”*
### **What buyers complain about **
**Weight Light**14%
*“seems a little light weight”*
**Defective Material/Parts**14%
*“Broken part”*
**Color**7%
*“Recieved wrong color”*
**Durability**7%
*“One season and the pin that holds the lock into the body fell out making the unit unusable”*
**Quality-Overall**7%
*“Junk”*
**Strength**3%
*“not one of those flimsy deterrents”*
**Value For Money**2%
*“It is not the cheapest lock”*
**Advertised Vs Actual Product**2%
*“My issue is with the product listing versus what I received”*
### **Top return reasons **
**Size-Overall**44%
**Mechanism Issues**12%
**Locking Mechanism**8%
**Advertised Vs Actual Product**8%
**Compatibility-Overall**7%
**Functionality-Overall**6%
**Assembly/Installation**2%
**Value For Money**2%
**Defective Material/Parts**2%
**Strength**1%
## **Common questions**
- **Is kingpin lock profitable to sell on Amazon United States?**
- The niche generates $282K/yr across 14 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +12.2%. Flapen's verdict: Skip it (49/100).
- **How competitive is the kingpin lock niche?**
- 11 brands and 20 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 77% of demand.
- **What do buyers complain about in kingpin lock?**
- Top complaints mined from reviews: Weight Light, Defective Material/Parts, Color. The return rate is 1.8%.
- **When does demand for kingpin lock peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the kingpin lock niche?**
- Listings span $21.08–$235.04; the average listing price is $61.73 (sweet spot $15–$100). The average incumbent carries 673 reviews — the moat a new listing must climb.
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