Is radiator cleaner profitable to sell on Amazon United States?

The niche generates $55K/yr across 29 tracked products. 4 of 6 products launched in the last 360 days are still selling. 90-day search growth is +53.5%. Flapen's verdict: Worth a look (60/100).

How competitive is the radiator cleaner niche?

24 brands and 133 sellers compete. The top 5 products take 51% of clicks and top 5 brands hold 57% of demand.

What do buyers complain about in radiator cleaner?

Top complaints mined from reviews: Spray/Flow, Ease Of Cleaning, Functionality-Overall. The return rate is 0.3%.

When does demand for radiator cleaner peak?

Demand peaks in Jun–Jul–Aug; the busiest month runs 2.9× the quietest.

What does it cost to enter the radiator cleaner niche?

Listings span $5.82–$62.76; the average listing price is $27.84 (sweet spot $15–$100). The average incumbent carries 1,826 reviews — the moat a new listing must climb.

radiator cleaner

Worth a look

Shows low returns (0.3%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.3%

return rate — above 5% kills the launch gate

Avg price

Incredible$27.84

avg listing price — sweet spot $15–$100

Price range

Great$5.82–$62.76

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

Brand share

Great57%

top-5 brand share — no brand owns this niche

Growth

Good+53.5%

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

Conversion

Good5.1%

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

Competition

Good51%

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

Review moat

Okay1,825.86

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Bad$55K

$55K/yr · 39K searches

Signals No Dominant Brand

According to Flapen's Amazon United States niche tracking, radiator cleaner is a $55K/yr Amazon United States market (39K searches/yr). The top 5 brands hold 57% of demand. Demand peaks in Jun–Jul–Aug. Verdict: Worth a look — 60/100.

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

radiator cleaner market data

Units sold / yr: 2K–2K; avg 0–100/product
Revenue / yr: $42K–$56K; units × avg price
Conversion rate: 5.1%
Avg BSR: #463
Page quality: 0%
Prime: 100%
Sponsored: 86%
Out of stock: 3.7%
Avg brand age: 52 months
Avg seller age: 161 days

Competition & brand share

The top 5 products take 51% of clicks — established leaders, but buyers still shop beyond them.

Brands

24 rising

Sellers

133

Top-5 brand share

57%

Top 20: 97%

Top-5 click share

51%

Top 20: 92%

Open market

37%

Frost King15%
ERRECOM15%
Prestone12%
Liqui Moly8%
PYQPYQ7%
CRC6%

Demand & seasonality

Weekly Amazon search volume, last 55 weeks — +53.5% search growth over the last 90 days.

Peak months: Jun, Jul, Aug · busiest ÷ quietest = 2.9×

Open Trend

Top radiator cleaner 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Frost King ACF19 Foam Coil Cleaner 1.18 Pound (Pack of 1) 19 Ounce

Frost King$9.454.6★17,545 rev

ERRECOM Zeus+ Cleaner for Radiators and Cooling Systems 12 fl oz Bottle (350 mL)

ERRECOM$11.934.4★151 rev

Liqui Moly Radiator Cleaner | 300 ml | Cooler additive | SKU: 2051

Liqui Moly$13.404.6★997 rev

Prestone AS105 Total Cooling System Cleaner for Radiator Heater Core and Hoses 22 oz. 1 pack

Prestone$13.854.6★2,360 rev

CRC Thermocure Coolant System Rust Remover 32 Oz Rust Remover for Vehicle Cooling Systems Removes Rust Scale and Deposits

CRC$26.144.6★1,572 rev

Newest

by launch date

47 & 24 Dual Water/Air Radiator Cleaning Wand Set - 4500 PSI Stainless Steel with Brass Adapter for Cars Trucks Heavy Equip High Walls

Litigers$49.9827 rev

4mo ago

47 + 24 Radiator Cleaning Wand Set 4500 PSI Dual Water/Air Flush Modes

Ahoall$43.1624 rev

5mo ago

ERRECOM Zeus+ Cleaner for Radiators and Cooling Systems 12 fl oz Bottle (350 mL)

ERRECOM$11.93151 rev

7mo ago

WMEEII 40 Radiator Cleaning Wand for Pressure Washer 5000 PSI High Pressure Washer Radiator Wand with 14 Linear Outlets Stainless Steel Slim Nozzle for Car Radiator Fins AC Condenser Trucks RV

WMEEII$50.9443 rev

1y ago

Simple Green Foaming Coil Cleaner 20oz Aerosol (Pack of 3)

Simple Green$26.331,303 rev

1y ago

What buyers say about radiator cleaner

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

What buyers love

Ease Of Cleaning21%

“Cleans really well”

Quality-Overall11%

“The overall build quality is impressive”

Efficiency11%

“Works better then expected”

Ease Of Use10%

“made it was easier”

Advertised Vs Actual Product7%

“Works as Advertised”

Value For Money7%

“Great Buy”

Smell5%

“Smells nice and clean”

Spray/Flow5%

“Sprays on easy”

Pressure2%

“holds up well under pressure”

Size-Overall2%

“Its a good size overall”

What buyers complain about

Spray/Flow17%

“Both cans stopped spraying”

Ease Of Cleaning16%

“Doesn't clean and not enough”

Functionality-Overall6%

“ineffective”

Value For Money4%

“Waste of money”

Leak-Proof3%

“Product leaked and I received another item”

Rusts/Corrodes3%

“there was a lot of rust”

Heating3%

“It now blows very hot”

Smell2%

“And it doesnt have the fragrance Im used to”

Pressure2%

“Runs out of pressure”

Foam2%

“Didn't foam as described”

Top return reasons

Advertised Vs Actual Product19%

Leak-Proof17%

Value For Money10%

Functionality-Overall10%

Compatibility-Overall5%

Size-Overall5%

Defective Material/Parts5%

Ease Of Cleaning4%

Color3%