vent valve
Skip itSoft demand (-23.4% this quarter) — this niche doesn't clear our bar today.
Avg price
Incredible$29.98avg listing price — sweet spot $15–$100
Competition
Great28%top-5 click share — an open shelf
Review moat
Great252.7avg incumbent reviews — the moat a new listing must climb
Price range
Great$8.47–$62.64cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good62%top-5 brand share — brands hold most of the demand
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Okay2.4%search→purchase rate — share of searches ending in a sale
Returns
Bad6.5%return rate — above 5% kills the launch gate
Market size
Bad$78K$78K/yr · 110K searches
Growth
Bad-23.4%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, vent valve is a $78K/yr Amazon United States market (110K searches/yr). The top 5 brands hold 62% of demand. Demand peaks in Mar. Verdict: Skip it — 49/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
vent valve market data
- Units sold / yr
- 3K–4K
- avg 0–100/product
- Revenue / yr
- $90K–$120K
- units × avg price
- Conversion rate
- 2.4%
- Avg BSR
- #225
- Page quality
- 0%
- Prime
- 98%
- Sponsored
- 77%
- Out of stock
- 0.4%
- Avg brand age
- 39 months
- Avg seller age
- 162 days
Competition & brand share
Clicks spread well past the top 5 (28% combined) — an open shelf where new products get seen.Brands
34 flat
Sellers
122
Top-5 brand share
62%
Top 20: 92%
Top-5 click share
28%
Top 20: 60%
Open market
33%
- Dorman33%
- GM GENUINE PARTS15%
- Forwinparts5%
- Satiooog5%
- PANNUOSCS5%
- A-Premium4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -23.4% search growth over the last 90 days.Peak months: Mar · busiest ÷ quietest = 2.6×
Top vent valve search terms
- evap vent solenoid30K/yr
- vent valve23K/yr
- vent valve solenoid20K/yr
- vent solenoid10K/yr
- evap vent valve solenoid8K/yr
- canister vent valve solenoid10K/yr
- canister vent solenoid5K/yr
- evap canister vent control valve5K/yr
Top vent valve 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Dorman 911-238 Vapor Canister Vent Solenoid Compatible with Select Models
Dorman$22.024.6★435 rev
Dorman 911-064 Vapor Canister Vent Solenoid Compatible with Select Cadillac/Chevrolet/GMC Models
Dorman$50.074.5★620 rev
Forwinparts Evap Canister Vent Solenoid Valve Assembly P0449 for 2004-2010 Chevy Silverado GMC Sierra 1500 2500 3500 HD Classic Vapor Canister Vent Solenoid 19207763 911-237 10357992 CVS34
Forwinparts$28.124.3★870 rev
GM Genuine Parts 23481275 Vapor Canister Vent Valve
GM GENUINE PARTS$41.804.6★1,817 rev
Vapor Canister Vent Solenoid P0449 for Chevy Silverado GMC Sierra 2004-2010
Satiooog$26.674.2★80 rev
Newest
by launch date
ESWW Vapor Canister Purge Valve Solenoid EVAP Purge Valve Solenoid Replacement 55573017 for Chevrolet Cruze Sonic Trax EVAP Canister Emission Vent Purge Control Valves PV704 2M1338 55576071 0280142
ESWW$16.551 rev
Mirthcos Vapor Canister Purge Valve Solenoid EVAP Compatible for Chevrolet Silverado Tahoe Trailblazer Suburban Colorado & GMC Sierra Yukon & Buick LaCrosse & Cadillac Escalade 214-1680 911-032
Mirthcos$13.32186 rev
YCUPONE Evaporator Emission Canister Vent Solenoid Valve 15759044 Compatible with Escalade Avalanche Silverado Suburban Sierra Yukon
YCUPONE$21.7914 rev
Vapor Canister Vent Solenoid P0449 for Chevy Silverado GMC Sierra 2004-2010
Satiooog$26.6780 rev
Bittwee Car Vapor Canister Purge Valve Solenoid Automotive Vapor Canister Emission Purge Valves Solenoid with OEM Replacement 2891026900 28910-26900 911-808 Universal for Vehicles SUVs
Bittwee$8.47420 rev
Trending
90-day click momentumESWW Vapor Canister Purge Valve Solenoid EVAP Purge Valve Solenoid Replacement 55573017 for Chevrolet Cruze Sonic Trax EVAP Canister Emission Vent Purge Control Valves PV704 2M1338 55576071 0280142
ESWW$16.555.0★
GM Genuine Parts 85123399 Vapor Canister Vent Solenoid Valve
GM GENUINE PARTS$37.924.4★
Vapor Canister Vent Valve/Solenoid P0446 Fit for 2007-2019 Chevy Silverado 1500 2500 3500/GMC Sierra 1500 2500 3500 Fuel Tank Vapor Emission Canister Vent Solenoid CVS191 911-099 23103351
PANNUOSCS$33.654.2★
Dorman 911-238 Vapor Canister Vent Solenoid Compatible with Select Models
Dorman$22.024.6★
Standard Motor Products CVS6 2-Terminal Vapor Canister Vent Solenoid
Standard Motor Products$23.444.4★
What buyers say about vent valve
What buyers praise and complain about, mined from review topics.What buyers love
“Direct fit”
“Great quality and arrived right on time”
“Took about 5 minutes to install”
“Good price”
“Effective”
“Works as it should”
“Works had no issues”
“The part repaired my vehicle”
“Easy”
“Just like new again”
What buyers complain about
“durability is questionable”
“doesn't fit my truck”
“doesn't fit my truck”
“it was leaking air”
“Does Not Perform”
“Item is trash”
“it was described as it fits my vehicle but it definitely does not”
“it immediately started clicking very loudly”
“I guess buying the cheaper one wasnt a good idea”
“bad purge valve”
Top return reasons
Common questions
- Is vent valve profitable to sell on Amazon United States?
- The niche generates $78K/yr across 81 tracked products. 3 of 9 products launched in the last 360 days are still selling. 90-day search growth is -23.4%. Flapen's verdict: Skip it (49/100).
- How competitive is the vent valve niche?
- 34 brands and 122 sellers compete. The top 5 products take 28% of clicks and top 5 brands hold 62% of demand.
- What do buyers complain about in vent valve?
- Top complaints mined from reviews: Durability, Size-Overall, Compatibility-Overall. The return rate is 6.5% — above our launch gate.
- When does demand for vent valve peak?
- Demand peaks in Mar; the busiest month runs 2.6× the quietest.
- What does it cost to enter the vent valve niche?
- Listings span $8.47–$62.64; the average listing price is $29.98 (sweet spot $15–$100). The average incumbent carries 253 reviews — the moat a new listing must climb.