o2 sensor plug
Skip itPrices mostly outside the sweet spot ($4.08–$14.03) — this niche doesn't clear our bar today.
Conversion
Incredible13.2%search→purchase rate — share of searches ending in a sale
Review moat
Great150.78avg incumbent reviews — the moat a new listing must climb
Returns
Good2.5%return rate — above 5% kills the launch gate
Brand share
Good71%top-5 brand share — brands hold most of the demand
Growth
Good+23.0%90-day search growth — must beat 0% to launch
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Avg price
Okay$9.20avg listing price — sweet spot $15–$100
Competition
Bad71%top-5 click share — a locked-up shelf
Market size
Bad$36K$36K/yr · 30K searches
Price range
Bad$4.08–$14.03cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, o2 sensor plug is a $36K/yr Amazon United States market (30K searches/yr). The top 5 brands hold 71% of demand. Verdict: Skip it — 43/100.
Data updated Jul 11, 2026 · scored weekly · How we score niches
o2 sensor plug market data
- Units sold / yr
- 4K–5K
- avg 250–500/product
- Revenue / yr
- $37K–$46K
- units × avg price
- Conversion rate
- 13.2%
- Avg BSR
- #534
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 67%
- Out of stock
- 3.9%
- Avg brand age
- 39 months
- Avg seller age
- 203 days
Competition & brand share
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.Brands
17 rising
Sellers
23
Top-5 brand share
71%
Top 20: 100%
Top-5 click share
71%
Top 20: 100%
Open market
23%
- Tanbupu22%
- AMAAM21%
- CXCCOI10%
- HOHNNYREET9%
- Sunxeke9%
- Metaland6%
Top o2 sensor plug search terms
- o2 sensor plug12K/yr
- m18x1.5 plug6K/yr
- 02 sensor plug3K/yr
- o2 sensor bung plug3K/yr
- m18 x 1.5 plug3K/yr
- oxygen sensor plug3K/yr
Top o2 sensor plug 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 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Tanbupu 2 PACK M18 X 1.5 Universal Fit with 304 Stainless Steel Sensor Plug Inner Hex Head with Red Copper O-Ring for Automotive Car Bike Motocycle ATV UTV and Other Transportatin
Tanbupu$9.944.5★111 rev
O2 Oxygen Sensor Plug Standard with Copper Washer M18 x 1.5 - Universal Fit with Inner Hex Head
AMAAM$7.614.7★1,003 rev
2PCS M18x1.5 Sensor Plug Inner Hex Head with Brass O-Ring Stainless Steel Sensor Bung Sealing Exhaust System Universal Car Accessories for Car Truck Motorcycle Exhaust Pipe and Sensor (M18x1.5)
CXCCOI$7.294.6★46 rev
O2 Oxygen Sensor Plug 4 Pcs 304 Stainless Steel M18-1.5 Oxygen Sensor Plugs with Copper O-Ring for Automotive Bike Motocycle
HOHNNYREET$13.964.8★54 rev
Sunxeke M18 x 1.5 Sensor Plug Standard with Inner Hex Head 304 Stainless Steel Universal Fit with Red Copper O-Ring for Motorbike Trucks and Motorcycles
Sunxeke$6.554.6★121 rev
Newest
by launch date
2PCS Sensor Plug with 2PCS O Rings M18 X 1.5 Sensor Bung Plug with Inner Hexagonal Head 304 Stainless Steel Sensors Bypass Plugs Car Accessories for Providing Sealing
Figpade$6.085 rev
O2 Oxygen Sensor Plug 4 Pcs 304 Stainless Steel M18-1.5 Oxygen Sensor Plugs with Copper O-Ring for Automotive Bike Motocycle
HOHNNYREET$13.9654 rev
Olivia & Oliver 304 Stainless Steel Sensor Plug M18x1.5 Universal Fit Inner Hex Head Pipe Fitting Bung Pack of 2
Olivia & Oliver$8.8616 rev
NYTKL 2PCS M18 x 1.5 Sensor Plug with Inner Hex Head 304 Stainless Steel Allen Key Slotted Plugs with O-Rings Leakproof O2 Sensor Plug Replacement for Motorbike Truck Motorcycle
NYTKL$5.7620 rev
joytrace M18x1.5 Oxygen Sensor Weld Bungs & Plugs Kit (2 Bungs/2 Plugs) - Stainless Steel Welding Adapters
joytrace$10.0847 rev
Trending
90-day click momentum
DEEFILL M18*1.5 Stainless Steel Magnetic Oil Drain Plug
DEEFILL$14.034.4★
2PCS Sensor Plug with 2PCS O Rings M18 X 1.5 Sensor Bung Plug with Inner Hexagonal Head 304 Stainless Steel Sensors Bypass Plugs Car Accessories for Providing Sealing
Figpade$6.084.7★
O2 Oxygen Sensor Plug 4 Pcs 304 Stainless Steel M18-1.5 Oxygen Sensor Plugs with Copper O-Ring for Automotive Bike Motocycle
HOHNNYREET$13.964.8★
M18 x 1.5 Stainless Steel 316 Threaded Plug Fitting with Copper Washer Slim Round Allen Key Head Metric Thread Sealing Plug for Hydraulic Fluid and Industrial Systems
AdaptorMount$8.954.7★
I Little Bamboo M18 X 1.5 Thread O2 Oxygen Sensor Plug with Copper Washer 304 Stainless Steel Universal Inner Hex Head Plug - 1 Pack
I Little Bamboo$6.974.3★
What buyers say about o2 sensor plug
What buyers praise and complain about, mined from review topics.What buyers love
“Fits like a glove”
“There isn't a single complaint from me”
“As described”
“It work great”
“Installation was simple”
“Good price”
“Nicely machined, strong magnet & fit 2017 V60”
“Perfect for my 97 Fatboy with later model exhaust system”
“Sturdy item”
What buyers complain about
“Sizing wrong”
“I had to return this due to a manufacturing defect”
“Doesnt fit 2019 gsxr750 like it told me its a m12x1.25”
“There were no threads on the plug”
Top return reasons
Common questions
- Is o2 sensor plug profitable to sell on Amazon United States?
- The niche generates $36K/yr across 18 tracked products. 90-day search growth is +23.0%. Flapen's verdict: Skip it (43/100).
- How competitive is the o2 sensor plug niche?
- 17 brands and 23 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 71% of demand.
- What do buyers complain about in o2 sensor plug?
- Top complaints mined from reviews: Size-Overall, Defective Material/Parts, Compatibility-Overall. The return rate is 2.5%.
- What does it cost to enter the o2 sensor plug niche?
- Listings span $4.08–$14.03; the average listing price is $9.20 (sweet spot $15–$100). The average incumbent carries 151 reviews — the moat a new listing must climb.