Is mercruiser 3.0 carburetor profitable to sell on Amazon United States?

The niche generates $80K/yr across 17 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is +218.3%. Flapen's verdict: Worth a look (51/100).

How competitive is the mercruiser 3.0 carburetor niche?

11 brands and 14 sellers compete. The top 5 products take 68% of clicks and top 5 brands hold 88% of demand.

What do buyers complain about in mercruiser 3.0 carburetor?

Top complaints mined from reviews: Quality-Overall, Size-Overall, Defective Material/Parts. The return rate is 6.0% — above our launch gate.

When does demand for mercruiser 3.0 carburetor peak?

Demand peaks in May–Jun–Jul–Aug; the busiest month runs 12.5× the quietest.

What does it cost to enter the mercruiser 3.0 carburetor niche?

Listings span $16.93–$114.56; the average listing price is $97.92 (sweet spot $15–$100). The average incumbent carries 61 reviews — the moat a new listing must climb.

mercruiser 3.0 carburetor

Worth a look

Shows demand growing +218.3% this quarter, but a small market ($80K/yr) keeps it on the watch list.

Growth

Incredible+218.3%

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

Review moat

Incredible61.18

avg incumbent reviews — the moat a new listing must climb

Price range

Great$16.93–$114.56

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

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Avg price

Great$97.92

avg listing price — sweet spot $15–$100

Conversion

Okay2.7%

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

Competition

Okay68%

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

Brand share

Okay88%

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

Returns

Bad6.0%

return rate — above 5% kills the launch gate

Market size

Bad$80K

$80K/yr · 31K searches

According to Flapen's Amazon United States niche tracking, mercruiser 3.0 carburetor is a $80K/yr Amazon United States market (31K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 51/100.

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

mercruiser 3.0 carburetor market data

Units sold / yr: 750–1K; avg 0–100/product
Revenue / yr: $73K–$98K; units × avg price
Conversion rate: 2.7%
Avg BSR: #3,481
Page quality: 0%
Prime: 100%
Sponsored: 88%
Out of stock: 0.0%
Avg brand age: 50 months
Avg seller age: 183 days

Competition & brand share

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

Brands

11 falling

Sellers

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

68%

Top 20: 100%

Open market

THUNDERMINGO56%
liriuda11%
XIAORENWU9%
NENKUTEN7%
YBATUWU5%
FQRANBO3%
Open — no brand owns it (5 brands, 8%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +218.3% search growth over the last 90 days.

Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 12.5×

Open Trend

Top mercruiser 3.0 carburetor search terms

mercruiser 3.0 carburetor21K/yr +231.2%2.8% conv.
sae j1223 marine carburetor6K/yr +294.5%2.3% conv.
mercruiser carburetor4K/yr +76.2%0.7% conv.

All search terms

Top mercruiser 3.0 carburetor 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 17 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

THUNDERMINGO New Marine Carburetor for Mercruiser 3.0 Carburetor 2 Barrel for Mercury Mercarb 3.0L 2.5L 4CYL Engine with Jets and Gasket W/Electric choke Long Linkage 3310-864940A01 8M0045397 Black

THUNDERMINGO$114.414.2★92 rev

Marine Carburetor for Mercruiser 3.0L 2.5L 2 barrel Carburetor 4 CYL Engines Mercarb Carb with Jets Long Linkage and Gaskets Electric choke Replace 3310-864940A01 Base Bolt Pattern 3 3/4 X 2 inches

THUNDERMINGO$106.584.1★108 rev

Mercruiser 3.0 Carburetor Black Marine Carb 2 Barrel for Mercruiser Carburetor 3.0L 2.5 4CYL Engine 3310-864940A01 3310-8M0045397 Mercarb w/Electric Choke & Short Long Linkage Gasket Kit

liriuda$114.564.5★23 rev

Marine Carburetor for Mercruiser 3.0L 2.5L 2 Barrel Carburetor Mercarb fits for Mercury 4 CYL Engines with Jets Short Linkage Gaskets Electric choke 3310-864940A01 Base Bolt Pattern 3 3/4 X 2 inches

THUNDERMINGO$104.394.4★14 rev

Marine Carburetor for Mercruiser Carburetor 3.0L 2.5L 2 Barrel Carb 4CYL Engine 3310-8M0045397 864940A01 Black Mercarb w/Electric Choke Jet Long Linkage Gasket Base Bolt Pattern is 3 3/4 X 2 inches

XIAORENWU$114.414.7★14 rev

Newest

by launch date

Black 3310-864940A01 Marine Carburetor For Mercruiser 3.0 L 2.5L 2 Barrel Carburetor 4Cyl Engine With Electric Choke Long Linkage Gasket Jets Replace 8M0045397

Generic$81.311 rev

10mo ago

8M0045397 Marine Carburetor 2 Barrel Fit for Mercruiser 3.0 2.5L Carburetor 4 CYL Engine with w/Electric Choke Jets Long Linkage and Gasket nut Replace 3310-864940A01 3310864940A01

JAVENYIMAN$91.303 rev

11mo ago

Marine Carburetor for Mercruiser 3.0 Carburetor 2 Barrel Carb for Mercury Mercarb 3.0L 2.5L 4CYL Engine with Jets and W/Electric choke Long Linkage Gasket 3310-864940A01 8M0045397

FQRANBO$88.7911 rev

11mo ago

Mercruiser 3.0 Carburetor Black Marine Carb 2 Barrel for Mercruiser Carburetor 3.0L 2.5 4CYL Engine 3310-864940A01 3310-8M0045397 Mercarb w/Electric Choke & Short Long Linkage Gasket Kit

liriuda$114.5623 rev

1y ago

Marine Carburetor for Mercruiser Carburetor 3.0L 2.5L 2 Barrel Carb 4CYL Engine 3310-8M0045397 864940A01 Black Mercarb w/Electric Choke Jet Long Linkage Gasket Base Bolt Pattern is 3 3/4 X 2 inches

XIAORENWU$114.4114 rev

1y ago

What buyers say about mercruiser 3.0 carburetor

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

What buyers love

Value For Money36%

“Not bad for the price”

Quality-Overall15%

“Great build quality”

Size-Overall6%

“fits my 3.0 mercruiser engine perfectly”

Efficiency6%

“works fine, reused my jets”

Rusts/Corrodes6%

“It has a nice corrosion preventing finish which is a big plus when it is used near saltwater”

Assembly/Installation4%

“all I had to do was fine adjust after install”

Ease Of Use4%

“its very easy”

Functionality-Overall3%

“It works”

Advertised Vs Actual Product3%

“As described and came next day”

Fuel Efficiency2%

“Worked 100% great carb”

What buyers complain about

Quality-Overall31%

“Parts seemed low quality”

Size-Overall17%

“The snap rings are the wrong size”

Defective Material/Parts10%

“Parts seemed low quality”

Functionality-Overall10%

“Did not work at all”

Durability8%

“It worked good for a month or so”

Maintenance And Repair8%

“Had to fully rebuild due to gaskets not installed properly”

Mounting3%

“The hole was off center the spring would not work correctly”

Jamming/Clogging2%

“can jam up on the actuator shaft”

Leak-Proof2%

“Always flooded and smelt like gas before I had a mechanic fix the carburetor”

Ease Of Use2%

“This kit makes a simple job way harder than it should be”

Top return reasons

Size-Overall25%

Compatibility-Overall14%

Functionality-Overall14%

Defective Material/Parts12%

Leak-Proof8%

Mechanism Issues5%

Advertised Vs Actual Product4%

Quality-Overall3%