knock sensor
Worth a lookShows a sweet-spot price point ($28.15 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Avg price
Incredible$28.15avg listing price — sweet spot $15–$100
Competition
Great25%top-5 click share — an open shelf
Review moat
Great199.16avg incumbent reviews — the moat a new listing must climb
Brand share
Great52%top-5 brand share — no brand owns this niche
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Price range
Good$8.18–$153.94cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$356K$356K/yr · 337K searches
Conversion
Okay3.8%search→purchase rate — share of searches ending in a sale
Returns
Okay4.7%return rate — above 6% kills the launch gate
Growth
Bad-10.3%90-day search growth — must beat 0% to launch
Competition
Clicks spread well past the top 5 (25% combined) — an open shelf where new products get seen.Brands
43 falling
Sellers
142
Top-5 brand share
52%
Open market
42%
- GM GENUINE PARTS14%
- A-Premium12%
- Gledewen10%
- Dorman8%
- Delphi7%
- TRQ5%
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 99 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
GM Genuine Parts 213-3521 (12589867) Ignition Knock (Detonation) Sensor
GM GENUINE PARTS$54.974.4★2,253 rev
Dual Knock Sensors with Wiring Harness Kit | Knock Sensor 5.3 for Chevy Suburban Silverado Avalanche Tahoe GMC Sierra Yukon Cadillac Hummer & More GM Vehicles | Replace# 12601822 12589867 917-033
Gledewen$22.093.6★1,657 rev
GM Genuine Parts 213-1576 (12623730) Ignition Knock (Detonation) Sensor
GM GENUINE PARTS$13.584.7★734 rev
Delphi AS10017 Ignition Knock (Detonation) Sensor
Delphi$37.734.0★619 rev
30530-PPL-A01 Ignition Knock Detonation Sensor for Honda Accord Civic CR-V/CRV Element & Acura RDX RSX TSX Replace 158-0917 30530PPLA01 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
RICHWEI$16.564.2★196 rev
Newest
by launch date
SDYYDS 2Pcs New Knock/Detonation Sensor Connector Wiring Harness Compatible with Select Buick Cadillac Chevy GMC Hummer Pontiac Saturn Models -Replaces 13580877 88953268 88987972 S-934
SDYYDS$13.195 rev
HiSport Knock Sensor and Harness Kit - Compatible with Lexus ES300 GS300 IS300 RX300 RX330 SC300 Toyota Avalon Camry Celica Highlander Sienna Solara 1999-2006 - Replace 89615-12090
HiSport$25.14153 rev
Titgoes Pack-1 Car Knock Sensors ABS Sensor Replacement Number 22060-7B000 220607B000 KS107 2 Pin Plug and Play Ignition Knock Sensor Standard Accessories Compatible with Most Cars (Black)
Titgoes$10.712 rev
A-Premium Ignition Knock Detonation Sensor Compatible with Hyundai & Kia Vehicles - Santa Fe 2010-2012 2019-2020 Sonata 2007-2019 Tucson Forte Optima Sorento Sportage & More Replace# 392502G100
A-Premium$20.8117 rev
AUTO OCCASION Knock Sensor for Chevy GMC Cadillac Pontiac
AUTO OCCASION$29.508 rev
Trending
90-day click momentum
Dorman 926-084 Knock Sensor And Harness Kit Compatible with Select Models
Dorman$59.143.6★
SDYYDS 2Pcs New Knock/Detonation Sensor Connector Wiring Harness Compatible with Select Buick Cadillac Chevy GMC Hummer Pontiac Saturn Models -Replaces 13580877 88953268 88987972 S-934
SDYYDS$13.195.0★
HiSport Knock Sensor and Harness Kit - Compatible with Lexus ES300 GS300 IS300 RX300 RX330 SC300 Toyota Avalon Camry Celica Highlander Sienna Solara 1999-2006 - Replace 89615-12090
HiSport$25.144.4★
GM Genuine Parts 213-96 (10456126) Knock Sensor
GM GENUINE PARTS$33.714.4★
FainWan 213-2308 30530-P2M-A01 30530P2MA01 30530-PV1A01 5S2308 SU4778 Ignition Knock Detonation Sensor Compatible with Civic Acura RL Integra Vigor Prelude
FainWan$14.123.6★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -10.3% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Awesome fit”
“Affordable quality”
“Works as it should”
“Excellent price”
“Easy to install”
“Perfectly functional”
“this thing corrected my problem”
“Durable like it should be”
“It had the correct part number on it”
“No more leaks”
What buyers complain about
“Faulty sensor”
“Bad quality”
“Will break”
“Didn't work out of box”
“States it didnt fit my vehicle”
“Part did not work”
“is difficult to install”
“Won't fit”
“Wasn't good connection cut 2 new ones in”
“with the high price of gas”