---
title: "locking gas cap — Niche Verdict: Skip it (48/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/locking-gas-cap"
last_updated: "2026-07-14T00:33:13.457Z"
locale: en
meta:
  description: "high returns (7.6%) — locking gas cap doesn't clear our bar today."
  "og:description": "high returns (7.6%) — locking gas cap doesn't clear our bar today."
  "og:title": "locking gas cap — Niche Verdict: Skip it (48/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **locking gas cap**

**Skip it**

High returns (7.6%) — this niche doesn't clear our bar today.

Market size 27Growth 28Conversion 41Competition 54Returns 18Price range 57Avg price 44Brand share 77Review moat 71Quality gap 98

**Quality gap**

**Incredible****3.7★**

avg incumbent rating — lower means beatable quality

**Brand share**

**Great****58%**

top-5 brand share — no brand owns this niche

**Review moat**

**Good****647.07**

avg incumbent reviews — the moat a new listing must climb

**Price range**

**Good****$6.71–$25.94**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Competition**

**Good****53%**

top-5 click share — leaders hold, buyers still browse

**Avg price**

**Okay****$11.23**

avg listing price — sweet spot $15–$100

**Conversion**

**Okay****3.3%**

search→purchase rate — share of searches ending in a sale

**Growth**

**Okay****+2.3%**

90-day search growth — must beat 0% to launch

**Market size**

**Okay****$114K**

$114K/yr · 308K searches

**Returns**

**Bad****7.6%**

return rate — above 6% kills the launch gate

## **Competition**

The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**22 **▲rising

**Sellers**

**56**

**Top-5 brand share**

**58%**

**Open market**

**34%**

- ZONFANT21% - Hirificing10% - SEEBOO9% - Eponcia9% - MotoRad9% - ROVIKE8%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$11K20%$23K30%$34K40%$46K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 29 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![ZONFANT Locking Gas Cap W/2 Keys Lock Fuel Cap Compatible With Chevy Honda Nissan Acura Mazda Cadillac GMC Vehicle 4Runner FJ Cruiser Silverado Camaro And More Replace#10504 77300-47020](https://m.media-amazon.com/images/I/418BPi5+VmL.jpg)**ZONFANT Locking Gas Cap W/2 Keys Lock Fuel Cap Compatible With Chevy Honda Nissan Acura Mazda Cadillac GMC Vehicle 4Runner FJ Cruiser Silverado Camaro And More Replace#10504 77300-47020**ZONFANT**$9.34**4.1★1,271 rev](https://www.amazon.com/dp/B0BBV652FT) [2![Hirificing Locking Gas Cap Fuel Tank with Key Gas Cap Lock Locking Fuel Cap Cover Compatible with Toyota 4Runner Chevy Silverado 1500 2500 3500 Nissan GMC Honda Subaru Buick #10504 77300-47020](https://m.media-amazon.com/images/I/51afIfQzoPL.jpg)**Hirificing Locking Gas Cap Fuel Tank with Key Gas Cap Lock Locking Fuel Cap Cover Compatible with Toyota 4Runner Chevy Silverado 1500 2500 3500 Nissan GMC Honda Subaru Buick #10504 77300-47020**Hirificing**$9.82**3.6★808 rev](https://www.amazon.com/dp/B0CSVMWHTP) [3![Eponcia Locking Gas Cap lock Locking Fuel Cap with Key for 4Runner Chevy Silverado 1500 2500 3500 Nissan GMC Subaru Buick Gas Lock Fuel Tank Caps Cover Replacement with Key 77300-47020 10504](https://m.media-amazon.com/images/I/41hyuw7yuwL.jpg)**Eponcia Locking Gas Cap lock Locking Fuel Cap with Key for 4Runner Chevy Silverado 1500 2500 3500 Nissan GMC Subaru Buick Gas Lock Fuel Tank Caps Cover Replacement with Key 77300-47020 10504**Eponcia**$11.94**3.5★151 rev](https://www.amazon.com/dp/B0FQC8BX6N) [4![Locking Gas Cap Lock Fuel Cap Replace 5278655AA For 2000-2020 Dodge Jeep Chrysler - Ram 1500 2500 3500 Journey Caravan Charger Dakota Durango & Jeep Wrangler JK TJ Liberty & Chrysler 200 300 Sebring](https://m.media-amazon.com/images/I/51HVHUNAtWL.jpg)**Locking Gas Cap Lock Fuel Cap Replace 5278655AA For 2000-2020 Dodge Jeep Chrysler - Ram 1500 2500 3500 Journey Caravan Charger Dakota Durango & Jeep Wrangler JK TJ Liberty & Chrysler 200 300 Sebring**ROVIKE**$12.54**4.2★1,123 rev](https://www.amazon.com/dp/B09V9QM6DC) [5![Locking Gas Cap Lock Fuel Cap Compatible With Chevy GMC Silverado Cruze Express Malibu Colorado Suburban Tahoe Equinox Terrain Sierra Savana Acadia Acura Buick Cadillac Lexus And More](https://m.media-amazon.com/images/I/415pIvmaC1L.jpg)**Locking Gas Cap Lock Fuel Cap Compatible With Chevy GMC Silverado Cruze Express Malibu Colorado Suburban Tahoe Equinox Terrain Sierra Savana Acadia Acura Buick Cadillac Lexus And More**SEEBOO**$10.09**4.0★1,028 rev](https://www.amazon.com/dp/B09SHTV6ZD)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![HAMOJUF Car Locking Gas Cap OEM# 12495845 Heavy Duty Vehicle Fuel Filler Door Locking Cover with Keys Automotive Replacement Accessories Compatible with Accord Avalon Venza](https://m.media-amazon.com/images/I/41Pylm+gzKL.jpg)**HAMOJUF Car Locking Gas Cap OEM# 12495845 Heavy Duty Vehicle Fuel Filler Door Locking Cover with Keys Automotive Replacement Accessories Compatible with Accord Avalon Venza**HAMOJUF**$8.71**13 rev3mo ago](https://www.amazon.com/dp/B0GSHLHKBR) [![KoiLuvGo Locking Gas Cap Fuel Tank with 2 Key ABS Anti-Theft Fuel Tank Lock Cover Replace #10504 31780 77300-47020 Universal Fuel Tank Cap Lock Compatible with 4Runner Silverado Civic Many Models](https://m.media-amazon.com/images/I/41ZLSRqFshL.jpg)**KoiLuvGo Locking Gas Cap Fuel Tank with 2 Key ABS Anti-Theft Fuel Tank Lock Cover Replace #10504 31780 77300-47020 Universal Fuel Tank Cap Lock Compatible with 4Runner Silverado Civic Many Models**KoiLuvGo**$11.14**13 rev6mo ago](https://www.amazon.com/dp/B0G1RQFL6T) [![FALVFUN Car Locking Gas Cap Heavy Duty Vehicle Lock Fuel Cap Cover Replace with Key Automotive OEM# 12495845 Replacement Accessories Compatible with Bonneville LeSabre Miata](https://m.media-amazon.com/images/I/413kbXAsNLL.jpg)**FALVFUN Car Locking Gas Cap Heavy Duty Vehicle Lock Fuel Cap Cover Replace with Key Automotive OEM# 12495845 Replacement Accessories Compatible with Bonneville LeSabre Miata**FALVFUN**$8.66**47 rev9mo ago](https://www.amazon.com/dp/B0FVF7LM1Z) [![Eponcia Locking Gas Cap lock Locking Fuel Cap with Key for 4Runner Chevy Silverado 1500 2500 3500 Nissan GMC Subaru Buick Gas Lock Fuel Tank Caps Cover Replacement with Key 77300-47020 10504](https://m.media-amazon.com/images/I/41hyuw7yuwL.jpg)**Eponcia Locking Gas Cap lock Locking Fuel Cap with Key for 4Runner Chevy Silverado 1500 2500 3500 Nissan GMC Subaru Buick Gas Lock Fuel Tank Caps Cover Replacement with Key 77300-47020 10504**Eponcia**$11.94**151 rev10mo ago](https://www.amazon.com/dp/B0FQC8BX6N) [![YYTQP Locking Gas Cap Fuel Tank with Key Lock Fuel Cap Cover Compatible with Dod-ge Ram Challenger Grand Caravan Ram 1500 Cherokee Wrangler TJ LJ JK JKU JL JLU JT # 05278655AB 5278655AB](https://m.media-amazon.com/images/I/41FIABnxA3L.jpg)**YYTQP Locking Gas Cap Fuel Tank with Key Lock Fuel Cap Cover Compatible with Dod-ge Ram Challenger Grand Caravan Ram 1500 Cherokee Wrangler TJ LJ JK JKU JL JLU JT # 05278655AB 5278655AB**YYTQP**$9.46**18 rev10mo ago](https://www.amazon.com/dp/B0FC7YTY21)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![HAMOJUF Car Locking Gas Cap OEM# 12495845 Heavy Duty Vehicle Fuel Filler Door Locking Cover with Keys Automotive Replacement Accessories Compatible with Accord Avalon Venza](https://m.media-amazon.com/images/I/41Pylm+gzKL.jpg)**HAMOJUF Car Locking Gas Cap OEM# 12495845 Heavy Duty Vehicle Fuel Filler Door Locking Cover with Keys Automotive Replacement Accessories Compatible with Accord Avalon Venza**HAMOJUF**$8.71**2.6★**▲ 252%**](https://www.amazon.com/dp/B0GSHLHKBR) [![FALVFUN Car Locking Gas Cap Heavy Duty Vehicle Lock Fuel Cap Cover Replace with Key Automotive OEM# 12495845 Replacement Accessories Compatible with Bonneville LeSabre Miata](https://m.media-amazon.com/images/I/413kbXAsNLL.jpg)**FALVFUN Car Locking Gas Cap Heavy Duty Vehicle Lock Fuel Cap Cover Replace with Key Automotive OEM# 12495845 Replacement Accessories Compatible with Bonneville LeSabre Miata**FALVFUN**$8.66**3.0★**▲ 93%**](https://www.amazon.com/dp/B0FVF7LM1Z) [![YYTQP Locking Gas Cap Fuel Tank with Key Lock Fuel Cap Cover Compatible with Dod-ge Ram Challenger Grand Caravan Ram 1500 Cherokee Wrangler TJ LJ JK JKU JL JLU JT # 05278655AB 5278655AB](https://m.media-amazon.com/images/I/41FIABnxA3L.jpg)**YYTQP Locking Gas Cap Fuel Tank with Key Lock Fuel Cap Cover Compatible with Dod-ge Ram Challenger Grand Caravan Ram 1500 Cherokee Wrangler TJ LJ JK JKU JL JLU JT # 05278655AB 5278655AB**YYTQP**$9.46**3.8★**▲ 90%**](https://www.amazon.com/dp/B0FC7YTY21) [![HABNVUON Locking Gas Cap Locking Gas Cap lock Fuel Tank Cap with Key for 4Runner Chevy Silverado 1500 2500 3500 Nissan GMC Subaru Buick 77300-47020 10504](https://m.media-amazon.com/images/I/41jykup6ewL.jpg)**HABNVUON Locking Gas Cap Locking Gas Cap lock Fuel Tank Cap with Key for 4Runner Chevy Silverado 1500 2500 3500 Nissan GMC Subaru Buick 77300-47020 10504**HABNVUON**$8.73**3.0★**▲ 80%**](https://www.amazon.com/dp/B0FLPWLRXG) [![JkorkM 10504 Locking Gas Cap Fit For Toyota 1999-2002 2007-2016 Camry 1999-2004 2010-2019 Tacoma 1999-2002 2010-2019 4Runner 1999-2004 2007-2014 2016 Avalon #77300-47020](https://m.media-amazon.com/images/I/41tiXPhCBML.jpg)**JkorkM 10504 Locking Gas Cap Fit For Toyota 1999-2002 2007-2016 Camry 1999-2004 2010-2019 Tacoma 1999-2002 2010-2019 4Runner 1999-2004 2007-2014 2016 Avalon #77300-47020**JkorkM**$14.61**4.3★**▲ 78%**](https://www.amazon.com/dp/B09VB771K1)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — +2.3% search growth over the last 90 days.

9K7KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

## **Reviews**

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

### **What buyers love **

**Size-Overall**38%

*“Fit perfectly in the car”*

**Quality-Overall**16%

*“Excellent quality”*

**Efficiency**9%

*“Works, keeps the thieves out”*

**Value For Money**8%

*“Good product for the price”*

**Fuel Efficiency**6%

*“Protects your fuel investment”*

**Advertised Vs Actual Product**4%

*“Works as advertised”*

**Strength**3%

*“sturdy”*

**Ease Of Use**2%

*“Easy to use”*

**Durability**2%

*“Durable”*

**Assembly/Installation**1%

*“easy assembly”*

### **What buyers complain about **

**Size-Overall**29%

*“It's too big”*

**Compatibility-Overall**19%

*“it didnt work for my car”*

**Quality-Overall**7%

*“Absolute garbage”*

**Functionality-Overall**7%

*“It doesn't work right”*

**Leak-Proof**6%

*“It leaks”*

**Advertised Vs Actual Product**6%

*“False advertising”*

**Durability**5%

*“Broke easily”*

**Ease Of Use**3%

*“Can be difficult”*

**Value For Money**3%

*“Just dont even buy this its a waste of money”*

**Material Quality**2%

*“it seems it's made of poor quality plastic”*

### **Top return reasons **

**Size-Overall**61%

**Compatibility-Overall**20%

**Functionality-Overall**4%

**Mechanism Issues**3%

**Advertised Vs Actual Product**3%

**Defective Material/Parts**2%

**Assembly/Installation**1%

**Value For Money**1%

**Leak-Proof**1%

**Ease Of Use**1%