mini catalizador
Skip itSoft demand (-39.9% this quarter) — this niche doesn't clear our bar today.
Returns
Great1.6%return rate — above 6% kills the launch gate
Review moat
Good649.56avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Avg price
Good$13.53avg listing price — sweet spot $15–$100
Price range
Good$5.98–$29.97cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Good73%top-5 brand share — brands hold most of the demand
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Market size
Bad$36K$36K/yr · 359K searches
Conversion
Bad0.8%search→purchase rate — share of searches ending in a sale
Growth
Bad-39.9%90-day search growth — must beat 0% to launch
Competition
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.Brands
16 falling
Sellers
63
Top-5 brand share
73%
Open market
27%
- Lisle32%
- OHYVGD15%
- Larlansz8%
- Datanly7%
- GlowShift5%
- Dorman5%
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 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Lisle 12230 Oxygen Sensor Thread Chaser Black
Lisle$8.954.6★2,362 rev
OHYVGD 2 PCS Sensor Adapter
OHYVGD$22.384.5★2 rev
M12-1.5 Male to 3/8 NPT Female Coolant Water Temp Sensor Adapter LS SWAP
Larlansz$10.944.2★319 rev
Datanly 2 Pcs Oxygen Sensor Thread Chaser M18 x 1.5mm Automotive Replacement Parts Easily Cleans Threads in Oxygen Sensor Hole Threads Works with 3/4 Inch Hex Socket or a 3/8 Inch Square Drive
Datanly$9.084.4★113 rev
GlowShift 1/8 BSPT Male to 1/8-27 NPT Female Gauge Sensor Sender Thread Fitting Adapter Reducer for Oil & Fuel Pressure Gauges - Manufactured from Brass
GlowShift$9.684.4★448 rev
Newest
by launch dateOHYVGD 2 PCS Sensor Adapter
OHYVGD$22.382 rev
OHYVGD Sensor Adapter 2 Pcs
OHYVGD$21.560 rev
stray poet 3Pcs Catalytic Converter Cleaner Catalytic Converter Cleaner Kit Auto Parts Engine Exhaust System Pipe Carbon Removal Cleaner Treatment Additive Oil Fuel System Treatment Oil Additive
stray poet$16.19407 rev
2 PCS Coolant Water Temperature Sensor Adapter Compatible with LS Engine M12 1.5 to 3/8 NPT Extended Fits LSX LS1 LS3 LS2 LM4 LM7 L76 LQ9 LR4 LS6 L92 L99 L33 LH6
Kamrexi$16.233 rev
YTFRL 2 PCS Oxygen Sensor Thread Chasers M18 x 1.5mm and M12 x 1.25mm Oxygen Sensor Adapter Spark Plug Thread Hex Socket Square Repair Tool Kit for 3/8 Drive Car Accessories
YTFRL$8.1816 rev
Trending
90-day click momentumOHYVGD 2 PCS Sensor Adapter
OHYVGD$22.384.5★
OHYVGD Sensor Adapter 2 Pcs
OHYVGD$21.560.0★
2 PCS Coolant Water Temperature Sensor Adapter Compatible with LS Engine M12 1.5 to 3/8 NPT Extended Fits LSX LS1 LS3 LS2 LM4 LM7 L76 LQ9 LR4 LS6 L92 L99 L33 LH6
Kamrexi$16.235.0★
Dorman 42002 Spark Plug Non-Foulers - 18 mm Tapered Seat Compatible with Select Models 2 Pack
Dorman$10.764.3★
Rlokciy 5-Piece Forged O2 Oxygen Sensor Socket & Thread Chaser Set Automotive Tool for Sensor Removal
Rlokciy$14.284.6★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -39.9% search growth over the last 90 days.Peak months: Apr · busiest ÷ quietest = 3.7×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Does the job”
“Excellent Product”
“As advertised”
“Great value”
“Fit perfect”
“Easy to use”
“Clean”
“gets great gas mileage”
“Is seems sturdy enough”
“Easy to install-”
What buyers complain about
“Did not work”
“destroyed one sensor”
“Does not fit”
“Doesn't fit 7/8 22mm o2 sensor”
“Their product is no good”
“Didn't even try to fix it”
“The liquid got everywhere”
“Product was used”
“Came beat up”
“sockets just bend open”