chassis ears
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Review moat
Great173avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Avg price
Good$149.11avg listing price — sweet spot $15–$100
Market size
Good$339K$339K/yr · 80K searches
Returns
Okay4.3%return rate — above 6% kills the launch gate
Conversion
Okay2.8%search→purchase rate — share of searches ending in a sale
Growth
Bad-16.1%90-day search growth — must beat 0% to launch
Price range
Bad$53.41–$393.34cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Bad93%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Competition
The top 5 products capture 93% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 falling
Sellers
40
Top-5 brand share
100%
Open market
0%
- Steelman44%
- Steelman Pro38%
- ZKTOOL11%
- KTTOOL7%
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 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Steelman Wireless ChassisEAR Auto Diagnostic Tool Kit Identify The Cause of Troubling Vehicle Noises 4 Transmitters with 50-Foot Range (61082)
Steelman$250.834.4★175 rev
STEELMAN PRO ChassisEAR 2 Auto Diagnostic Noise Finder
Steelman Pro$139.874.7★73 rev
STEELMAN PRO Wireless ChassisEAR 2 Auto Diagnostic Kit
Steelman Pro$393.343.9★52 rev
ZKTOOL Chassis Ears Electronic Stethoscope Diagnostic Kit with Headphones Electronic Ears Automotive 6 Channel Car Engine Noise Finder Sound Detector Tester Tool Set
ZKTOOL$53.634.3★206 rev
STEELMAN 06600 ChassisEAR Electronic Squeak and Rattle Finder
Steelman$98.114.6★557 rev
Newest
by launch date
KTTOOL Chassis Ears Automotive Engine Noise Finder 6 Channel Car Sound Detector Tester Tool Set Electronic Stethoscope Diagnostic Kit with Headphones
KTTOOL$54.5974 rev
KTTOOL Chassis Ears Automotive Engine Noise Finder 6 Channel Car Sound Detector Tester Tool Set Electronic Stethoscope Diagnostic Kit with Headphones
KTTOOL$53.4174 rev
Steelman Wireless ChassisEAR Auto Diagnostic Tool Kit Identify The Cause of Troubling Vehicle Noises 4 Transmitters with 50-Foot Range (61082)
Steelman$250.83175 rev
ZKTOOL Chassis Ears Electronic Stethoscope Diagnostic Kit with Headphones Electronic Ears Automotive 6 Channel Car Engine Noise Finder Sound Detector Tester Tool Set
ZKTOOL$53.63206 rev
STEELMAN PRO Wireless ChassisEAR 2 Auto Diagnostic Kit
Steelman Pro$393.3452 rev
Trending
90-day click momentumKTTOOL Chassis Ears Automotive Engine Noise Finder 6 Channel Car Sound Detector Tester Tool Set Electronic Stethoscope Diagnostic Kit with Headphones
KTTOOL$54.594.1★
ZKTOOL Chassis Ears Electronic Stethoscope Diagnostic Kit with Headphones Electronic Ears Automotive 6 Channel Car Engine Noise Finder Sound Detector Tester Tool Set
ZKTOOL$53.634.3★
Steelman Wireless ChassisEAR Auto Diagnostic Tool Kit Identify The Cause of Troubling Vehicle Noises 4 Transmitters with 50-Foot Range (61082)
Steelman$250.834.4★
STEELMAN PRO Wireless ChassisEAR 2 Auto Diagnostic Kit
Steelman Pro$393.343.9★
KTTOOL Chassis Ears Automotive Engine Noise Finder 6 Channel Car Sound Detector Tester Tool Set Electronic Stethoscope Diagnostic Kit with Headphones
KTTOOL$53.414.1★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -16.1% search growth over the last 90 days.Peak months: Jan · busiest ÷ quietest = 2.0×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Decent build quality”
“Works great”
“it is actually very straightforward to use”
“These are absolutely great for pin pointing exactly where a noise is coming from on a vehicle”
“Worth every penny”
“Solid tool”
“Performance: This device does exactly what its supposed to do”
“It is really handy to be able to put the clamps in several places”
“Tool works great”
“Its a handy gadget for anyone interested in maintaining their vehicle more effectively”
What buyers complain about
“The device actually feels pretty cheaply made”
“static, no sound, batteries die quickly, you have to remove batteries after ever use and that gets very anoying”
“I'm afraid it might break if I push any harder”
“The included headphones arent very good”
“Device not working”
“No explanation in instructions”
“The unit itself seems a little flimsy”
“the chassis ear screen won't hold a charge anymore only had for a few weeks at this point”
“of which are hard to access”
“worth it does whats advertised though one of the buttons lost its cap out of the gate. cosmetic issue”