Hydraulic Stop Leak
FailThe top 5 brands take 100% of clicks, so Hydraulic Stop Leak is a Fail.
- Flapen Score
- 49 / 100Ranks 3,500 of 7,287 Automotive niches · on the category median49
- Market size
- $97K/yr5K searches / yr
- 90-day growth
- +14.4%search demand this quarter
- Competition
- 94%top-5 click share · 3 brands · 93 sellers
Flapen Score
Hydraulic Stop Leak against its category
The dotted line is the Automotive average. Past it, Hydraulic Stop Leak is stronger. Inside it, weaker.
Market
The Hydraulic Stop Leak market on Amazon at a glance
Shoppers on Amazon United States searched for Hydraulic Stop Leak 5K times last year and spent an estimated $97K. All 3 brands take every click. Flapen scores it 49 out of 100, a Fail.
01 · Demand
An estimated 29.7% of those searches ended in a purchase.
Shoppers searched for this 5K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 29.7% of those searches ended in a purchase. Searches in the last 90 days moved +14.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $97K a year.
- Searches, last 12 months
- 5K
- Growth, 90 days vs prior 90
- +14.4%
- Conversion, latest week
- 29.7%
- Market size, estimated
- $97Ka year
- Top search term
- lucas hydraulic oil booster & stop leak2K searches a year
02 · Price
A sale here is worth $60.70.
Listings sell for $60.70 on average, from $13.40 to $126.03. Amazon reports units sold in ranges. This niche sold 1K to 2K a year. The average listing sells 100 to 250 of them. At $60.70 that is $6K to $15K a year per listing.
- Average price
- $60.70inside the $15 to $100 sweet spot
- Price range
- $13.40–$126.03
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 1K–2K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $6K–$15K
- Returns
- 1.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
71% of listings pay for placement with sponsored ads. 57% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #82 within Oils & Fluids. It carries 386 reviews at 4.34 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 71%
- Prime listings
- 57%
- Out of stock, average day
- 0.0%
- Average rank
- #82in Oils & Fluids
- Average rating
- 4.34 starsAmazon United States average 4.42 stars
- Average reviews
- 386per listing
- Listings tracked
- 7
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 161 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 161 months
Products
Top Hydraulic Stop Leak products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 9, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Hydraulic Oil Booster/STO
- Price
- $31.86
- Rating
- 4.6/5
- Reviews
- 809
- Age
- 20y ago

Lucas Oil 10019 Hydraulic Oil Booster and Stop Leak - 1 Quart White 32 Ounce
- Price
- $13.40
- Rating
- 4.6/5
- Reviews
- 943
- Age
- 22y ago

BlueDevil Products Hydraulic Stop Leak 32 oz | Restores Seals & Stops Leaks in Hydraulic Systems | Safe for Pumps Cylinders & Valves
- Price
- $23.88
- Rating
- 4.3/5
- Reviews
- 622
- Age
- 13y ago

Lucas Oil 10018 Hydraulic Oil Booster & Stop Leak - 1 Gallon (Pack of 4)
- Price
- $105.59
- Rating
- 4.7/5
- Reviews
- 77
- Age
- 13y ago

Hydraulic Oil Booster/Stop Leak/1x1/5 Gallon Pail
- Price
- $126.03
- Rating
- 3.0/5
- Reviews
- 1
- Age
- 18y ago
Trending
estimated 90-day click momentum
Hydraulic Oil Booster/Stop Leak/1x1/5 Gallon Pail
- Price
- $126.03
- Rating
- 3.0/5
- Reviews
- 1
- Age
- 18y ago

Lucas Oil Hydraulic Oil Booster and Stop Leak 1 gal Case of 4 P/N 10018-4
- Price
- $107.80
- Rating
- 4.9/5
- Reviews
- 22
- Age
- 14y ago

Hydraulic Oil Booster/STO
- Price
- $31.86
- Rating
- 4.6/5
- Reviews
- 809
- Age
- 20y ago

Lucas Oil 10018 Hydraulic Oil Booster & Stop Leak - 1 Gallon (Pack of 4)
- Price
- $105.59
- Rating
- 4.7/5
- Reviews
- 77
- Age
- 13y ago

Lucas Oil 10019 Hydraulic Oil Booster and Stop Leak - 1 Quart White 32 Ounce
- Price
- $13.40
- Rating
- 4.6/5
- Reviews
- 943
- Age
- 22y ago
Newest
by launch date
Bars Leaks H60 Hydraulic Seal Stop Leak & Conditioner 32. Fluid_Ounces 1 Quart
- Price
- $16.35
- Rating
- 4.3/5
- Reviews
- 228
- Age
- 7y ago

BlueDevil Products Hydraulic Stop Leak 32 oz | Restores Seals & Stops Leaks in Hydraulic Systems | Safe for Pumps Cylinders & Valves
- Price
- $23.88
- Rating
- 4.3/5
- Reviews
- 622
- Age
- 13y ago

Lucas Oil 10018 Hydraulic Oil Booster & Stop Leak - 1 Gallon (Pack of 4)
- Price
- $105.59
- Rating
- 4.7/5
- Reviews
- 77
- Age
- 13y ago

Lucas Oil Hydraulic Oil Booster and Stop Leak 1 gal Case of 4 P/N 10018-4
- Price
- $107.80
- Rating
- 4.9/5
- Reviews
- 22
- Age
- 14y ago

Hydraulic Oil Booster/Stop Leak/1x1/5 Gallon Pail
- Price
- $126.03
- Rating
- 3.0/5
- Reviews
- 1
- Age
- 18y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 94% of clicks. A locked shelf that new listings rarely crack.
Brands
3 falling
Sellers
93
Est. top-5 brand share
100%
Top 20: 100%
Est. top-5 click share
94%
Top 20: 100%
Open market
0%
- Lucas Oil81%
- BlueDevil Products17%
- Bar's Leaks3%
Demand
Hydraulic Stop Leak search demand
Weekly searches over the year. Pick a range.
Reviews and returns
What reviews say buyers love and hate about Hydraulic Stop Leak
We read the reviews and the return reasons for every product selling here.
“Didn't work like it was supposed to do”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Hydraulic Stop Leak questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









