O2 Sensor
O2 Sensor shows a $3.5M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Flapen Score
Top 2% of 7,287 Automotive niches · +18 vs the category median of 49
Is O2 Sensor profitable on Amazon?
According to Flapen's Amazon United States niche tracking, O2 Sensor is a $3.5M/yr Amazon United States market (3.9M searches/yr). The top 5 brands hold 50% of demand. Verdict: Worth a look — 67/100.
O2 Sensor: the Amazon niche in one read
Everything a seller checks before entering, in three answers.
Is the demand real?
Worth a look. Search demand moved -15.5% over the last 90 days and 2.5% of searches end in a purchase.
$3.5M
revenue / yr
Who owns the niche?
The top 5 brands hold 50% of demand, so 50% of the market is open.
50%
open market share
Is there a way in?
Listing quality. The average product page scores 0/100 on content standards. Incumbents average 4.2★ — the gap to enter on.
0/100
page quality · 68 products
Top O2 Sensor products & what they sell for
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Top sellers
by 90-day click share
Oxygen Sensor Upstream Downstream O2 2Pcs | Compatible with Ford F150 F250 Ranger Expedition Explorer Escape Mazda Tribute Lincoln & More Replace# 15717 15716 15664 ZZC318861
- Price
- $29.22
- Rating
- 4.3/5
- Reviews
- 2,644
- Age
- 6y ago
Oxygen O2 Sensor Upstream Downstream for Chry 300 for Dodge Challenger Charger Dakota Durango Grand Caravan Journey Neon Nitro for Jeep Commander Grand Cherokee Wrangler JK 56028994AA 56028994AB
- Price
- $47.53
- Rating
- 4.0/5
- Reviews
- 360
- Age
- 4y ago
ACAUTO 4Pcs 15717 Oxygen O2 Sensor Upstream Downstream Fit for Ford F-150 F250 F350 Ranger Escape Explorer Mustang Foucs Expedition Mazda Lincoln Jaguar Mercury Aston Martin 15716 15718
- Price
- $39.38
- Rating
- 4.3/5
- Reviews
- 234
- Age
- 2y ago
Denso Oxygen (O2) Sensor - 234-4622 (Fits Select Years of Lexus: ES300(h)/NX200t/NX300(h) Pontiac Vibe and Toyota: 4Runner/Avalon/Camry/Corolla/Matrix/Paseo/RAV4/Sienna/Solara/Tercel Vehicles)
- Price
- $52.07
- Rating
- 4.4/5
- Reviews
- 1,241
- Age
- 18y ago
Walker Products 350-34039 Oxygen Sensor 4-Wire Direct Fit (Original Equipment Replacement O2 Sensor)
- Price
- $28.05
- Rating
- 4.4/5
- Reviews
- 669
- Age
- 14y ago
Trending
90-day click momentumDenso Oxygen (O2) Sensor - 234-4622 (Fits Select Years of Lexus: ES300(h)/NX200t/NX300(h) Pontiac Vibe and Toyota: 4Runner/Avalon/Camry/Corolla/Matrix/Paseo/RAV4/Sienna/Solara/Tercel Vehicles)
- Price
- $52.07
- Rating
- 4.4/5
- Reviews
- 1,241
- Age
- 18y ago
AdvanEX 234-4337 Oxygen O2 Sensor Upstream or Downstream Compatible with Buick Cadillac Chevrolet GMC Hammer Isuzu Oldsmobile Pontiac Saab Saturn Replaces 12578459 234-4087 2PCS
- Price
- $28.17
- Rating
- 4.1/5
- Reviews
- 31
- Age
- 1y ago
maXpeedingrods 4PCS Oxygen O2 Sensor Set Replaces 234-4668 Upstream & Downstream Compatible with Chevrolet Avalanche Silverado Tahoe with GMC Sierra Yukon Acadia with Buick Enclave Escalade
- Price
- $44.63
- Rating
- 4.1/5
- Reviews
- 228
- Age
- 2y ago
TAUTOY 234-4668 234-4256 O2 Oxygen Sensor Up Downstream 4Pcs for 2008-2014 Cadillac Escalade ESV for Chevrolet/Chevy Avalanche Silverado 1500 2500 3500 Suburban for Sierra Yukon 213-4229 213-3866
- Price
- $39.03
- Rating
- 4.2/5
- Reviews
- 150
- Age
- 2y ago
HTMXJA 4Pcs Upstream and Downstream Oxygen O2 Sensor for Edge 3.7L 3.5L 11-14 Explorer 3.5L 11-15 F-150 3.7L 11-14 Escape 3.0L 10-12 Fusion 3.0L 10-12 CX-9 3.7L 11-15 .OE#234-5038 234-4490
- Price
- $60.92
- Rating
- 3.8/5
- Reviews
- 51
- Age
- 1y ago
Newest
by launch dateAdvanEX 234-4337 Oxygen O2 Sensor Upstream or Downstream Compatible with Buick Cadillac Chevrolet GMC Hammer Isuzu Oldsmobile Pontiac Saab Saturn Replaces 12578459 234-4087 2PCS
- Price
- $28.17
- Rating
- 4.1/5
- Reviews
- 31
- Age
- 1y ago
HTMXJA 4Pcs Upstream and Downstream Oxygen O2 Sensor for Edge 3.7L 3.5L 11-14 Explorer 3.5L 11-15 F-150 3.7L 11-14 Escape 3.0L 10-12 Fusion 3.0L 10-12 CX-9 3.7L 11-15 .OE#234-5038 234-4490
- Price
- $60.92
- Rating
- 3.8/5
- Reviews
- 51
- Age
- 1y ago
DriveFix Upstream and Downstream Oxygen Sensor Set for Lexus ES300 GX470 ES350 LX570 for Toyota Camry Avalon RAV4 Solara 4Runner Sequoia Tacoma Tundra Land Cruiser Matrix
- Price
- $50.33
- Rating
- 3.2/5
- Reviews
- 41
- Age
- 1y ago
HTMXJA 2Pcs Upstream and Downstream Oxygen O2 Sensor for 2012-2016 Accent Rio Vel0ster and Soul L4-2.4L OE#234-5055 234-4568
- Price
- $34.03
- Rating
- 4.4/5
- Reviews
- 107
- Age
- 1y ago
maXpeedingrods 4PCS Oxygen O2 Sensor Set Replaces 234-4668 Upstream & Downstream Compatible with Chevrolet Avalanche Silverado Tahoe with GMC Sierra Yukon Acadia with Buick Enclave Escalade
- Price
- $44.63
- Rating
- 4.1/5
- Reviews
- 228
- Age
- 2y ago
Competition: brands, sellers & click share
Clicks spread well past the top 5 (30% combined) — an open shelf where new products get seen.
Brands
35 falling
Sellers
107
Top-5 brand share
50%
Top 20: 88%
Top-5 click share
30%
Top 20: 56%
Open market
44%
- Gledewen13%
- Denso12%
- Bosch10%
- ACAUTO8%
- BLPextrm7%
- A-Premium6%
O2 Sensor demand & seasonality
Weekly search volume, with the niche's key stats alongside.
No pronounced peak months · busiest ÷ quietest = 1.3×
Top O2 Sensor search terms shoppers use
The exact queries shoppers type, with yearly volume, growth and conversion.
- o2 sensor1.2M/yr
- oxygen sensor930K/yr
- 02 sensor439K/yr
- sensor de oxgeno209K/yr
- upstream o2 sensor132K/yr
- automotive replacement oxygen sensors84K/yr
- downstream o2 sensor92K/yr
- o2 sensor upstream117K/yr
- sensor de oxigeno bank 1 sensor 282K/yr
- sensores de oxgeno71K/yr
What reviews say buyers love and hate about O2 Sensor
What buyers mention most, as a share of all reviews.
What buyers love
86% of reviews“EASY TO USE”
“Working good”
“The build quality is excellent”
“Exactly as advertised”
“Accurate and easy”
What buyers complain about
76% of reviews“NOT ACCURATE”
“Inaccurate Readings”
“Dose not work”
“broke in 2 months”
“Bad quality, stopped working the next day”
O2 Sensor return rate & reasons
Why buyers send it back, as a share of all return requests.
2.1%
Return rate
14%
Fixable by listing
The "fixable" share counts expectation-mismatch reasons — size, look, advertised-vs-actual — that better copy and images address.
Common O2 Sensor questions
The questions sellers ask about this niche, answered from the tracked metrics.
Related niches
Same-category niches scoring near this one — the next ones worth researching.
Best Flapen score
The highest-scoring niches we track right now, across every category.
