leak detection pump
Skip itSoft demand (-7.5% this quarter) — this niche doesn't clear our bar today.
Avg price
Great$51.01avg listing price — sweet spot $15–$100
Review moat
Great303.21avg incumbent reviews — the moat a new listing must climb
Competition
Good49%top-5 click share — leaders hold, buyers still browse
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Conversion
Good4.1%search→purchase rate — share of searches ending in a sale
Brand share
Okay79%top-5 brand share — brands hold most of the demand
Returns
Okay4.4%return rate — above 6% kills the launch gate
Price range
Okay$11.42–$237.82cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay$100K$100K/yr · 48K searches
Growth
Bad-7.5%90-day search growth — must beat 0% to launch
Competition
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.Brands
14 falling
Sellers
72
Top-5 brand share
79%
Open market
17%
- Dorman56%
- A-Premium10%
- Gedlex5%
- Standard Motor Products5%
- stymart4%
- AITKEN4%
- Open — no brand owns it (8 brands, 17%)
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 29 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Dorman 310-219 Evaporative Emissions System Leak Detection Pump Compatible with Select Models
Dorman$21.594.6★2,697 rev
Dorman 310-215 Evaporative Emissions System Leak Detection Pump Compatible with Select Models
Dorman$29.474.5★2,135 rev
Gedlex 310-219 Evaporative Emissions System Leak Detection Pump Compatible with 2007-2019 Dodge Durango Nitro Ram 1500 Promaster J eep Liberty Grand Fiat 500 Cherokee Chrys ler Aspen 4B1593 ESM1003
Gedlex$18.544.2★108 rev
Dorman 310-233 Evaporative Emissions System Leak Detection Pump Compatible with Select Models
Dorman$26.634.6★386 rev
310-219 Fuel Evaporative Emissions Leak Detection Pump Compatible with 2007-2019 Dodge Nitro Durango Ram 1500 ProMaster Chrysler Aspen Fiat 500/500L Jeep Grand Cherokee Liberty
stymart$20.444.5★97 rev
Newest
by launch date
EVAP Fuel Vapor Leak Detection Pump LDP DMTL for BMW 3 Series 5 Series 7 Series M X Z Series VW Jetta Passat Audi Volvo Land Rover Mercedes-Benz
Tiansel$39.752 rev
A-Premium EVAP System Vapor Leak Detection Pump Compatible with BMW 3 Series 5 Series 7 Series M Series & Volkswagen Jetta Passat Beetle & Mazda 3 & Hyundai Accent & Audi & Volvo & Land Rover
A-Premium$45.584 rev
Roneeson Fuel Vapor Leak Detection Pump for Chrysler Prowler 2001-02 Dodge Ram 1500 2500 3500 Van 2001-03 Jeep Grand Cherokee WJ 2002-04 Wrangler TJ 2003-04 Plymouth Prowler 2000-01
Roneeson$64.320 rev
Roneeson Evaporative Emissions System Leak Detection Pump for Audi A3 A8 Quattro A6 Allroad A7 Sportback Q3 Q5 Q7 Q8 RS3 S3 S6 SQ7 SQ8 TTS Quattro VW Arteon Atlas Golf R GTI Jetta Passat Taos
Roneeson$35.701 rev
AITKEN EVAP System Vapor Leak Detection Pump Compatible with BMW 3 Series 5 Series 7 Series M Series Audi Volkswagen Volvo Land Rover Mercedes-Benz
AITKEN$43.8221 rev
Trending
90-day click momentumRoneeson Fuel Vapor Leak Detection Pump for Chrysler Prowler 2001-02 Dodge Ram 1500 2500 3500 Van 2001-03 Jeep Grand Cherokee WJ 2002-04 Wrangler TJ 2003-04 Plymouth Prowler 2000-01
Roneeson$64.320.0★
EVAP Fuel Vapor Leak Detection Pump LDP DMTL for BMW 3 Series 5 Series 7 Series M X Z Series VW Jetta Passat Audi Volvo Land Rover Mercedes-Benz
Tiansel$39.755.0★
Replacement Leak Detection Pump - OEM# 310-233 Evaporative EVAP Emissions System compatible with 07-21 Dodge Challenger Charger Dart Dakota Ram 1500 Jeep Compass Wagoneer Gladiator Chrysler 200 300
X4XZ$22.584.1★
Roneeson Evaporative Emissions System Leak Detection Pump for Audi A3 A8 Quattro A6 Allroad A7 Sportback Q3 Q5 Q7 Q8 RS3 S3 S6 SQ7 SQ8 TTS Quattro VW Arteon Atlas Golf R GTI Jetta Passat Taos
Roneeson$35.705.0★
A-Premium EVAP System Vapor Leak Detection Pump Compatible with BMW 3 Series 5 Series 7 Series M Series & Volkswagen Jetta Passat Beetle & Mazda 3 & Hyundai Accent & Audi & Volvo & Land Rover
A-Premium$45.585.0★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -7.5% 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
“OEM fit”
“Worth it”
“Excellent Product”
“Easy to use”
“it works exactly as it should”
“Works as it should”
“Easy installation”
“I didnt have one leake”
“The best cheap fix I've found”
“Very pleased with this compact machine”
What buyers complain about
“Leaks”
“It is small”
“Broke after ONE use”
“Did not work”
“Not compatible”
“the listing says it does buyer beware”
“These are not cheap either”
“What noise”
“Trash”
“Worse great for 10-15 minutes after setup”