Is power steering stop leak profitable to sell on Amazon United States?

The niche generates $137K/yr across 10 tracked products. 90-day search growth is -9.5%. Flapen's verdict: Skip it (41/100).

How competitive is the power steering stop leak niche?

8 brands and 132 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 94% of demand.

What do buyers complain about in power steering stop leak?

Top complaints mined from reviews: Leak-Proof, Functionality-Overall, Value For Money. The return rate is 0.7%.

When does demand for power steering stop leak peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the power steering stop leak niche?

Listings span $5.41–$21.01; the average listing price is $12.46 (sweet spot $15–$100). The average incumbent carries 3,699 reviews — the moat a new listing must climb.

power steering stop leak

Skip it

A concentrated shelf (top 5 take 88% of clicks) — this niche doesn't clear our bar today.

Conversion

Incredible16.0%

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

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Avg price

Good$12.46

avg listing price — sweet spot $15–$100

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Price range

Okay$5.41–$21.01

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

Market size

Okay$137K

$137K/yr · 69K searches

Review moat

Okay3,698.9

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-9.5%

90-day search growth — must beat 0% to launch

Brand share

Bad94%

top-5 brand share — brand-locked demand

Competition

Bad88%

top-5 click share — a locked-up shelf

According to Flapen's Amazon United States niche tracking, power steering stop leak is a $137K/yr Amazon United States market (69K searches/yr). The top 5 brands hold 94% of demand. Verdict: Skip it — 41/100.

Data updated Jul 9, 2026 · scored weekly · How we score niches

power steering stop leak market data

Units sold / yr: 10K–13K; avg 1,000–1,250/product
Revenue / yr: $125K–$156K; units × avg price
Conversion rate: 16.0%
Avg BSR: #12
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 127 months
Avg seller age: 154 days

Competition & brand share

The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 rising

Sellers

132

Top-5 brand share

94%

Top 20: 100%

Top-5 click share

88%

Top 20: 100%

Open market

Lucas Oil53%
Bar's Leaks25%
BlueDevil Products7%
Prestone5%
Valvoline3%
Permatex3%
Open — no brand owns it (2 brands, 4%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.5% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top power steering stop leak search terms

power steering stop leak21K/yr -11.7%13.0% conv.
lucas power steering stop leak18K/yr -4.0%19.7% conv.
power steering fluid stop leak17K/yr -12.1%11.6% conv.
power steering leak stop4K/yr -3.5%16.4% conv.
stop leak power steering fluid3K/yr -17.0%14.3% conv.
power steering stop leak sealant4K/yr -22.3%12.8% conv.
lucas oil power steering stop leak2K/yr +6.6%24.8% conv.

All search terms

Top power steering stop leak products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

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

All 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Lucas Oil 12 Oz. Power Steering Leak-Stopper Fluid - 1 Each

Lucas Oil$12.834.5★2,730 rev

Lucas Oil LUC10011

Lucas Oil$19.264.6★2,481 rev

Bars Leaks High Mileage Power Steering Repair-It 16.9 oz

Bar's Leaks$12.014.3★2,827 rev

BlueDevil Products Power Steering Fluid w/Stop Leak - 1 Quart

BlueDevil Products$11.564.7★330 rev

Prestone AS262 Power Steering Fluid with Stop Leak 50 000 Miles 12 oz.

Prestone$5.414.7★2,150 rev

Newest

by launch date

Permatex 30303 Power Steering - Stop Leak 12 fl oz Effectively Stops Power Steering System Leaks While Revitalizing Seals and O-Rings

Permatex$12.2634 rev

2y ago

BlueDevil Products Power Steering Fluid w/Stop Leak - 1 Quart

BlueDevil Products$11.56330 rev

2y ago

LIQUI Moly Power Steering Oil Leak Stop | 35 ml | Oil additive | SKU: 1099

Liqui Moly$14.043,252 rev

12y ago

Bars Leaks 1630 Power Steering Stop Leak - 11 oz Grey

Bar's Leaks$6.031,339 rev

14y ago

Vavoline MaxLife PS and SL Power Steering Fluid with Stops Leaks Prevents Wear Foaming and Oxidation for Meets GM 1050017 Chrysler 5931 Ford M2C195-A 32oz

Valvoline$10.2137 rev

15y ago

What buyers say about power steering stop leak

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

What buyers love

Leak-Proof35%

“it is no longer leaking”

Quality-Overall16%

“Great product great company”

Value For Money9%

“Good value”

Advertised Vs Actual Product8%

“Works as advertised”

Efficiency8%

“helps a worn seal do it's job again”

Ease Of Use4%

“Easy to use”

Maintenance And Repair2%

“Saved me from hours of work to fix it”

Lubrication1%

“The best, most effective oil sealer on the market hands down”

Thickness1%

“It was a nice blend of thickness to add to my power steering reservoir”

Fuel Efficiency1%

“My fuel mileage increased from 35 mpg to 42”

What buyers complain about

Leak-Proof51%

“Made the leak worst”

Functionality-Overall10%

“it did not work in my case”

Value For Money9%

“Expensive part should you have to replace it”

Maintenance And Repair3%

“I was dreading the repair bill”

Advertised Vs Actual Product2%

“It did not work as they claims”

Lubrication1%

“It's a solvent”

Noise Level1%

“Noises when away”

Durability1%

“disappointed lasted just a year it would appear”

Material Quality1%

“Not synthetic”

Thickness1%

“Very thin liquid”

Top return reasons

Compatibility-Overall34%

Leak-Proof25%

Value For Money10%

Functionality-Overall10%

Advertised Vs Actual Product7%

Defective Material/Parts3%

Product Condition3%