---
title: "knock sensor — Niche Verdict: Worth a look (62/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/knock-sensor"
last_updated: "2026-07-13T19:57:50.815Z"
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meta:
  description: "knock sensor shows a sweet-spot price point ($28.15 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list."
  "og:description": "knock sensor shows a sweet-spot price point ($28.15 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list."
  "og:title": "knock sensor — Niche Verdict: Worth a look (62/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **knock sensor**

**Worth a look**

Shows a sweet-spot price point ($28.15 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 54Growth 20Conversion 47Competition 90Returns 36Price range 58Avg price 95Brand share 83Review moat 90Quality gap 83

**Avg price**

**Incredible****$28.15**

avg listing price — sweet spot $15–$100

**Competition**

**Great****25%**

top-5 click share — an open shelf

**Review moat**

**Great****199.16**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Great****52%**

top-5 brand share — no brand owns this niche

**Quality gap**

**Great****4.2★**

avg incumbent rating — lower means beatable quality

**Price range**

**Good****$8.18–$153.94**

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

**Market size**

**Good****$356K**

$356K/yr · 337K searches

**Conversion**

**Okay****3.8%**

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

**Returns**

**Okay****4.7%**

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.

0%2%$7K4%$14K6%$21K8%$28K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 99 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![GM Genuine Parts 213-3521 (12589867) Ignition Knock (Detonation) Sensor](https://m.media-amazon.com/images/I/31BVMcb+InL.jpg)**GM Genuine Parts 213-3521 (12589867) Ignition Knock (Detonation) Sensor**GM GENUINE PARTS**$54.97**4.4★2,253 rev](https://www.amazon.com/dp/B000K02EDG) [2![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](https://m.media-amazon.com/images/I/31KTqHXfeUL.jpg)**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**$22.09**3.6★1,657 rev](https://www.amazon.com/dp/B07Q2KFRQS) [3![GM Genuine Parts 213-1576 (12623730) Ignition Knock (Detonation) Sensor](https://m.media-amazon.com/images/I/21kVxJAo+xL.jpg)**GM Genuine Parts 213-1576 (12623730) Ignition Knock (Detonation) Sensor**GM GENUINE PARTS**$13.58**4.7★734 rev](https://www.amazon.com/dp/B000C9GGBG) [4![Delphi AS10017 Ignition Knock (Detonation) Sensor](https://m.media-amazon.com/images/I/51RrNliBXQL.jpg)**Delphi AS10017 Ignition Knock (Detonation) Sensor**Delphi**$37.73**4.0★619 rev](https://www.amazon.com/dp/B000CGHTC4) [5![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](https://m.media-amazon.com/images/I/41VzoF46EYL.jpg)**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**$16.56**4.2★196 rev](https://www.amazon.com/dp/B0BMB1WLFW)

**~~View all top sellers →~~**

### **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](https://m.media-amazon.com/images/I/51f5pEplLrL.jpg)**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**$13.19**5 rev5mo ago](https://www.amazon.com/dp/B0GHN5MJ1P) [![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](https://m.media-amazon.com/images/I/41IAaw411hL.jpg)**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**$25.14**153 rev7mo ago](https://www.amazon.com/dp/B0G6KGBVLD) [![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)](https://m.media-amazon.com/images/I/41jcAcFhykL.jpg)**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**$10.71**2 rev7mo ago](https://www.amazon.com/dp/B0FQV1K17R) [![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](https://m.media-amazon.com/images/I/41jzxTM5H7L.jpg)**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**$20.81**17 rev10mo ago](https://www.amazon.com/dp/B0FNMVFC4D) [![AUTO OCCASION Knock Sensor for Chevy GMC Cadillac Pontiac](https://m.media-amazon.com/images/I/41DUUvoWNqL.jpg)**AUTO OCCASION Knock Sensor for Chevy GMC Cadillac Pontiac**AUTO OCCASION**$29.50**8 rev11mo ago](https://www.amazon.com/dp/B0FK9QN5YG)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Dorman 926-084 Knock Sensor And Harness Kit Compatible with Select Models](https://m.media-amazon.com/images/I/31LUGg+DpnL.jpg)**Dorman 926-084 Knock Sensor And Harness Kit Compatible with Select Models**Dorman**$59.14**3.6★**▲ 294%**](https://www.amazon.com/dp/B07QNLP9XJ) [![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](https://m.media-amazon.com/images/I/51f5pEplLrL.jpg)**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**$13.19**5.0★**▲ 236%**](https://www.amazon.com/dp/B0GHN5MJ1P) [![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](https://m.media-amazon.com/images/I/41IAaw411hL.jpg)**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**$25.14**4.4★**▲ 167%**](https://www.amazon.com/dp/B0G6KGBVLD) [![GM Genuine Parts 213-96 (10456126) Knock Sensor](https://m.media-amazon.com/images/I/41Lyi+sH9DL.jpg)**GM Genuine Parts 213-96 (10456126) Knock Sensor**GM GENUINE PARTS**$33.71**4.4★**▲ 142%**](https://www.amazon.com/dp/B000C9I8GW) [![FainWan 213-2308 30530-P2M-A01 30530P2MA01 30530-PV1A01 5S2308 SU4778 Ignition Knock Detonation Sensor Compatible with Civic Acura RL Integra Vigor Prelude](https://m.media-amazon.com/images/I/41vDviUpW9L.jpg)**FainWan 213-2308 30530-P2M-A01 30530P2MA01 30530-PV1A01 5S2308 SU4778 Ignition Knock Detonation Sensor Compatible with Civic Acura RL Integra Vigor Prelude**FainWan**$14.12**3.6★**▲ 131%**](https://www.amazon.com/dp/B0C5N9L2VY)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -10.3% search growth over the last 90 days.

7K5KSpike '25 seasonSepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.4×

## **Reviews**

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

### **What buyers love **

**Size-Overall**23%

*“Awesome fit”*

**Quality-Overall**16%

*“Affordable quality”*

**Advertised Vs Actual Product**12%

*“Works as it should”*

**Value For Money**10%

*“Excellent price”*

**Assembly/Installation**8%

*“Easy to install”*

**Efficiency**7%

*“Perfectly functional”*

**Functionality-Overall**4%

*“this thing corrected my problem”*

**Durability**3%

*“Durable like it should be”*

**Correct Contents**2%

*“It had the correct part number on it”*

**Leak-Proof**1%

*“No more leaks”*

### **What buyers complain about **

**Sensor**37%

*“Faulty sensor”*

**Quality-Overall**14%

*“Bad quality”*

**Durability**9%

*“Will break”*

**Functionality-Overall**8%

*“Didn't work out of box”*

**Compatibility-Overall**7%

*“States it didnt fit my vehicle”*

**Defective Material/Parts**5%

*“Part did not work”*

**Assembly/Installation**4%

*“is difficult to install”*

**Size-Overall**2%

*“Won't fit”*

**Connectivity-Overall**2%

*“Wasn't good connection cut 2 new ones in”*

**Value For Money**1%

*“with the high price of gas”*

### **Top return reasons **

**Sensor**33%

**Size-Overall**14%

**Compatibility-Overall**11%

**Functionality-Overall**10%

**Defective Material/Parts**10%

**Value For Money**4%

**Advertised Vs Actual Product**4%

**Connectivity-Overall**2%

**Assembly/Installation**2%

**Socket/Port/Plug**2%