5/16 fuel filter
Worth a lookShows low returns (1.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Great1.0%return rate — above 6% kills the launch gate
Conversion
Great9.9%search→purchase rate — share of searches ending in a sale
Brand share
Great58%top-5 brand share — no brand owns this niche
Review moat
Good517.92avg incumbent reviews — the moat a new listing must climb
Competition
Good48%top-5 click share — leaders hold, buyers still browse
Growth
Good+29.3%90-day search growth — must beat 0% to launch
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Avg price
Okay$10.50avg listing price — sweet spot $15–$100
Price range
Okay$6.28–$19.34cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Bad$85K$85K/yr · 82K searches
Competition
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.Brands
23 falling
Sellers
55
Top-5 brand share
58%
Open market
37%
- Wix23%
- smseace17%
- K&N8%
- Wfdams5%
- Strongthium5%
- Podavelle5%
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 26 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
smseace 4Pcs 5/16 Inch fuel filter inline with 8Pcs Hose Clamps in line fuel filter 5/16 Inch for Motorcycles Car Trucks 5/16 Inch Inline Fuel Filter
smseace$9.934.2★421 rev
WIX Racing Filters Fuel Filter
Wix$6.284.7★1,244 rev
WIX 33012 Universal Metal In-Line Fuel Filter Replacement with 5/16 Inlet and Oulet - Gasoline Only (20 Micron)
Wix$7.104.6★86 rev
K&N 81-0300 Replacement Fuel Filter
K&N$9.214.5★3,954 rev
WIX 33002 Universal Plastic In-Line Fuel Filter Replacement with 5/16 Inlet and Oulet - Gasoline Only (20 Micron)
Wix$7.854.7★487 rev
Newest
by launch date
Strongthium 5/16 Inline Fuel Filter Clear Fits for Riding Lawn Mower Tractor Generator Go Kart Mini Dirt Bike Motorcycle Car
Strongthium$10.014 rev
WFDAMS 5/16 Fuel Filter Inline Reusable Washable Aluminum Gas Fuel Filter with Clear Glass for Small Engine Motorcycle ATV Lawn Mower Boat (Non Fuel Injected)
Wfdams$7.3638 rev
CNRAQR 5/16 Fuel Filters 178 Micron Removable Black Anodized Aluminum
CNRAQR$9.9899 rev
TRHSIFF 10 PCS 1/4 Inch and 5/16 Inch Gas Inline Fuel Filters with Magnet for Kawasaki Kohler John Deere Lawn Mower Small Engine Upgrade Universal Replacement Fuel Filter with 10 Clips
TRHSIFF$7.3196 rev
5 Sets 5/16 Inch Fuel Filter Inline 5/16 Fuel Filter Universal Gas Inline Fuel Filters Gas Fueled Filter for Tractors Cars Trucks Motorcycles Rv
Tucnoeu$10.3911 rev
Trending
90-day click momentumStrongthium 5/16 Inline Fuel Filter Clear Fits for Riding Lawn Mower Tractor Generator Go Kart Mini Dirt Bike Motorcycle Car
Strongthium$10.014.7★
WFDAMS 5/16 Fuel Filter Inline Reusable Washable Aluminum Gas Fuel Filter with Clear Glass for Small Engine Motorcycle ATV Lawn Mower Boat (Non Fuel Injected)
Wfdams$7.364.4★
5/16 Universal Fuel Filters Industrial Tractors Cars Trucks Motorcycles Gas Powered Engine Inline Gas Fuel Line 10 Pack
SEEBOO$16.664.0★
5 Sets 5/16 Inch Fuel Filter Inline 5/16 Fuel Filter Universal Gas Inline Fuel Filters Gas Fueled Filter for Tractors Cars Trucks Motorcycles Rv
Tucnoeu$10.394.8★
TRHSIFF 10 PCS 1/4 Inch and 5/16 Inch Gas Inline Fuel Filters with Magnet for Kawasaki Kohler John Deere Lawn Mower Small Engine Upgrade Universal Replacement Fuel Filter with 10 Clips
TRHSIFF$7.314.4★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +29.3% search growth over the last 90 days.Peak months: Apr, May · busiest ÷ quietest = 2.1×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Great filter”
“Decent quality”
“Good for the price”
“As advertised”
“The fit is solid”
“Didn't leak”
“provided clean fuel to lawnmower engine”
“Works very well”
“Easy install”
“Nicely built”
What buyers complain about
“Bad filter”
“Quality control is lacking”
“This product leaks”
“Do not last”
“it is smaller”
“Dirty fuel is a big problem with small engines”
“not worth the money”
“Internal glue failure”
“Bad materials bad quality do not waste your $”
“buried way down in the product ad”