locking gas cap
Skip itHigh returns (7.6%) — this niche doesn't clear our bar today.
Quality gap
Incredible3.7★avg incumbent rating — lower means beatable quality
Brand share
Great58%top-5 brand share — no brand owns this niche
Review moat
Good647.07avg incumbent reviews — the moat a new listing must climb
Price range
Good$6.71–$25.94cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good53%top-5 click share — leaders hold, buyers still browse
Avg price
Okay$11.23avg listing price — sweet spot $15–$100
Conversion
Okay3.3%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
Bad7.6%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.
All 29 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$9.344.1★1,271 rev
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$9.823.6★808 rev
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$11.943.5★151 rev
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$12.544.2★1,123 rev
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$10.094.0★1,028 rev
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
HAMOJUF$8.7113 rev
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$11.1413 rev
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$8.6647 rev
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$11.94151 rev
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$9.4618 rev
Trending
90-day click momentumHAMOJUF 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$8.712.6★
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$8.663.0★
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$9.463.8★
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$8.733.0★
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$14.614.3★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +2.3% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Fit perfectly in the car”
“Excellent quality”
“Works, keeps the thieves out”
“Good product for the price”
“Protects your fuel investment”
“Works as advertised”
“sturdy”
“Easy to use”
“Durable”
“easy assembly”
What buyers complain about
“It's too big”
“it didnt work for my car”
“Absolute garbage”
“It doesn't work right”
“It leaks”
“False advertising”
“Broke easily”
“Can be difficult”
“Just dont even buy this its a waste of money”
“it seems it's made of poor quality plastic”