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transmission flush machine

Skip it

Pricing outside the sweet spot ($499.32 avg) — this niche doesn't clear our bar today.

Market size 39Growth 17Conversion 14Competition 29Returns 59Price range 4Avg price 0Brand share 45Review moat 94Quality gap 28

Review moat

Great127.65

avg incumbent reviews — the moat a new listing must climb

Returns

Good2.6%

return rate — above 5% kills the launch gate

Brand share

Okay78%

top-5 brand share — brands hold most of the demand

Market size

Okay$200K

$200K/yr · 37K searches

Competition

Okay68%

top-5 click share — leaders hold, buyers still browse

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-16.5%

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

Conversion

Bad1.1%

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

Price range

Bad$11.29–$1937.47

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

Avg price

Bad$499.32

avg listing price — sweet spot $15–$100

According to Flapen's Amazon United States niche tracking, transmission flush machine is a $200K/yr Amazon United States market (37K searches/yr). The top 5 brands hold 78% of demand. Verdict: Skip it — 32/100.

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

transmission flush machine market data

Units sold / yr
250–500
avg 0–100/product
Revenue / yr
$125K–$250K
units × avg price
Conversion rate
1.1%
Avg BSR
#271
Page quality
0%
Prime
59%
Sponsored
71%
Out of stock
1.1%
Avg brand age
64 months
Avg seller age
161 days

Competition & brand share

The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.

Brands

11 falling

Sellers

30

Top-5 brand share

78%

Top 20: 100%

Top-5 click share

68%

Top 20: 100%

Open market

16%

  • VEVOR43%
  • Yokoma15%
  • Lubegard8%
  • AUTOOL7%
  • QPKING6%
  • LGXEnzhuo6%
  • Open — no brand owns it (5 brands, 16%)

Demand

Weekly Amazon search volume, last 14 weeks — -16.5% search growth over the last 90 days.
1K600Apr '26Apr '26May '26May '26May '26Jun '26Jun '26

Top transmission flush machine search terms

  • transmission flush machine18K/yr
  • transmission flush kit13K/yr
  • transmission fluid flush machine6K/yr
All search terms

Top transmission flush machine 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.

0%10%$20K20%$40K30%$60K40%$80K1101001K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)6 products missing review or click data not plotted

All 17 tracked products in this niche — three views at once, no toggling.

What buyers say about transmission flush machine

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

What buyers love

Ease Of Use15%

“Ease of use”

Quality-Overall15%

“Excellent product”

Efficiency11%

“Works great very efficient”

Value For Money9%

“Worth your money”

Lubrication6%

“Oil changes are fun now”

Advertised Vs Actual Product6%

“Works as advertised”

Pressure4%

“Excellent Pump Easy to use”

Fuel Efficiency4%

“Quick and simple oil change”

Size-Overall3%

“Had exactly the right fitting for filling”

Add-Ons/Attachments3%

“Works great and comes with a lot of accessories”

What buyers complain about

Durability9%

“Stops working at around 5 uses”

Lubrication8%

“Ended up changing fluid again after putting on some miles”

Quality-Overall8%

“Poor quality”

Pressure7%

“Mine won't hold pressure”

Functionality-Overall7%

“Pressure gauge did not work at all”

Leak-Proof6%

“Connections leak”

Size-Overall4%

“Also the case doesn't fit well”

Ease Of Use4%

“Thats not very easy”

Heating3%

“it gets hot”

Strength2%

“the hose got brittle”

Top return reasons

Functionality-Overall17%
Size-Overall12%
Defective Material/Parts12%
Pressure9%
Leak-Proof7%
Advertised Vs Actual Product6%
Motor Issues6%
Compatibility-Overall5%
Value For Money4%
Durability4%

Common questions

Is transmission flush machine profitable to sell on Amazon United States?
The niche generates $200K/yr across 17 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -16.5%. Flapen's verdict: Skip it (32/100).
How competitive is the transmission flush machine niche?
11 brands and 30 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 78% of demand.
What do buyers complain about in transmission flush machine?
Top complaints mined from reviews: Durability, Lubrication, Quality-Overall. The return rate is 2.6%.
What does it cost to enter the transmission flush machine niche?
Listings span $11.29–$1937.47; the average listing price is $499.32 (sweet spot $15–$100). The average incumbent carries 128 reviews — the moat a new listing must climb.