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66

pcv valve

Worth a look

Shows a fragmented shelf (top 5 take 17% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 74Growth 18Conversion 46Competition 96Returns 50Price range 80Avg price 68Brand share 96Review moat 89Quality gap 73

Competition

Incredible17%

top-5 click share — an open shelf

Brand share

Incredible31%

top-5 brand share — no brand owns this niche

Review moat

Great224.09

avg incumbent reviews — the moat a new listing must climb

Price range

Great$4.67–$60.24

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

Market size

Good$821K

$821K/yr · 1.6M searches

Quality gap

Good4.3★

avg incumbent rating — lower means beatable quality

Avg price

Good$14.10

avg listing price — sweet spot $15–$100

Returns

Good3.0%

return rate — above 5% kills the launch gate

Conversion

Okay3.7%

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

Growth

Bad-14.5%

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

According to Flapen's Amazon United States niche tracking, pcv valve is a $821K/yr Amazon United States market (1.6M searches/yr). The top 5 brands hold 31% of demand. Verdict: Worth a look — 66/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

pcv valve market data

Units sold / yr
60K–80K
avg 250–500/product
Revenue / yr
$846K–$1.1M
units × avg price
Conversion rate
3.7%
Avg BSR
#724
Page quality
0%
Prime
100%
Sponsored
56%
Out of stock
0.6%
Avg brand age
38 months
Avg seller age
163 days

Competition & brand share

Clicks spread well past the top 5 (17% combined) — an open shelf where new products get seen.

Brands

80 rising

Sellers

193

Top-5 brand share

31%

Top 20: 64%

Top-5 click share

17%

Top 20: 39%

Open market

65%

  • Beck/Arnley9%
  • ACDelco8%
  • Honda5%
  • QKYS5%
  • JYIS5%
  • MLAHUIER4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -14.5% search growth over the last 90 days.
35K25KSpike '25SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.5×

Top pcv valve search terms

  • pcv valve759K/yr
  • pcv valve replacement143K/yr
  • pcv hose103K/yr
  • pcv valve hose101K/yr
  • valvula pcv67K/yr
  • pcv53K/yr
  • pcv valve replacement kit15K/yr
  • crankcase breather hose37K/yr
  • pvc valve for my car35K/yr
  • pvc valve29K/yr
All search terms

Top pcv 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.

0%2%$16K4%$33K6%$49K8%$66K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about pcv valve

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

What buyers love

Size-Overall38%

“Direct fit”

Quality-Overall14%

“High quality hose”

Advertised Vs Actual Product10%

“As advertised”

Value For Money9%

“Great Value”

Assembly/Installation7%

“Easy Install”

Efficiency6%

“Functionally, it does exactly what its supposed to do”

Durability2%

“Durable”

Ease Of Use1%

“Quick and easy”

Leak-Proof1%

“did not leak”

Maintenance And Repair1%

“Simple maintenance”

What buyers complain about

Size-Overall17%

“Too short”

Compatibility-Overall13%

“Compatibility issues”

Quality-Overall10%

“Bad quality”

Durability7%

“Broke too easy”

Advertised Vs Actual Product5%

“Not what it says”

Functionality-Overall4%

“The hose supplied did not work as intended”

Defective Material/Parts3%

“Not correct part”

Assembly/Installation3%

“Not sure if install it like this or not”

Leak-Proof3%

“about 6 months leaked again”

Value For Money3%

“Seemed far cheaper”

Top return reasons

Size-Overall41%
Compatibility-Overall20%
Defective Material/Parts9%
Advertised Vs Actual Product8%
Functionality-Overall4%
Value For Money3%
Assembly/Installation3%
Quality-Overall2%
Leak-Proof2%
Product Condition1%

Common questions

Is pcv valve profitable to sell on Amazon United States?
The niche generates $821K/yr across 159 tracked products. 4 of 34 products launched in the last 360 days are still selling. 90-day search growth is -14.5%. Flapen's verdict: Worth a look (66/100).
How competitive is the pcv valve niche?
80 brands and 193 sellers compete. The top 5 products take 17% of clicks and top 5 brands hold 31% of demand.
What do buyers complain about in pcv valve?
Top complaints mined from reviews: Size-Overall, Compatibility-Overall, Quality-Overall. The return rate is 3.0%.
When does demand for pcv valve peak?
Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the pcv valve niche?
Listings span $4.67–$60.24; the average listing price is $14.10 (sweet spot $15–$100). The average incumbent carries 224 reviews — the moat a new listing must climb.