Is 4 barrel carburetor profitable to sell on Amazon United States?

The niche generates $95K/yr across 44 tracked products. 3 of 7 products launched in the last 360 days are still selling. 90-day search growth is +12.2%. Flapen's verdict: Skip it (45/100).

How competitive is the 4 barrel carburetor niche?

22 brands and 91 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 78% of demand.

What do buyers complain about in 4 barrel carburetor?

Top complaints mined from reviews: Quality-Overall, Leak-Proof, Defective Material/Parts. The return rate is 7.9% — above our launch gate.

When does demand for 4 barrel carburetor peak?

Demand peaks in Sep; the busiest month runs 1.9× the quietest.

What does it cost to enter the 4 barrel carburetor niche?

Listings span $83.61–$464.13; the average listing price is $187.08 (sweet spot $15–$100). The average incumbent carries 62 reviews — the moat a new listing must climb.

4 barrel carburetor

Skip it

Prices mostly outside the sweet spot ($83.61–$464.13) — this niche doesn't clear our bar today.

Quality gap

Incredible3.7★

avg incumbent rating — lower means beatable quality

Review moat

Incredible62.16

avg incumbent reviews — the moat a new listing must climb

Competition

Great38%

top-5 click share — an open shelf

Avg price

Okay$187.08

avg listing price — sweet spot $15–$100

Brand share

Okay78%

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

Growth

Okay+12.2%

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

Market size

Bad$95K

$95K/yr · 94K searches

Returns

Bad7.9%

return rate — above 5% kills the launch gate

Conversion

Bad0.5%

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

Price range

Bad$83.61–$464.13

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

Signals Low Review Barrier Quality Gap High Returns High Price

According to Flapen's Amazon United States niche tracking, 4 barrel carburetor is a $95K/yr Amazon United States market (94K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Sep. Verdict: Skip it — 45/100.

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

4 barrel carburetor market data

Units sold / yr: 500–750; avg 0–100/product
Revenue / yr: $94K–$140K; units × avg price
Conversion rate: 0.5%
Avg BSR: #4,165
Page quality: 0%
Prime: 100%
Sponsored: 93%
Out of stock: 4.2%
Avg brand age: 36 months
Avg seller age: 170 days

Competition & brand share

Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.

Brands

22 falling

Sellers

Top-5 brand share

78%

Top 20: 99%

Top-5 click share

38%

Top 20: 76%

Open market

19%

Generic44%
SJDYYMX14%
condgreemee10%
Edelbrock5%
THUNDERMINGO5%
Gihdfer4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +12.2% search growth over the last 90 days.

Peak months: Sep · busiest ÷ quietest = 1.9×

Open Trend

Top 4 barrel carburetor search terms

4 barrel carburetor54K/yr +8.8%0.5% conv.
600 cfm carburetor12K/yr +48.6%0.9% conv.
4bbl carburetor7K/yr +29.3%0.6% conv.
sbc carburetor7K/yr -1.7%0.6% conv.
four barrel carburetor5K/yr -7.2%1.0% conv.
carburetor 4 barrel5K/yr +12.3%0.3% conv.
600 cfm carburetor 4 barrel4K/yr -73.3%1.2% conv.

All search terms

Top 4 barrel 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★)1 product missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

1405 600 CFM 4 Barrel Carburetor w/Manual Choke Carburetor Compatible with Corvette Silverado GMC Square Bore Carburetor (Non-EGR)

SJDYYMX$135.323.6★36 rev

1406 Carburetor for Performer 600 CFM 4 Barrel Carburetor Square Bore AFB-style Air Valve Secondary Compatible with Silverado Corvette Mustang Mercury GMC Pickup Truck carb with Electric Choke

condgreemee$150.923.6★129 rev

1405 Carburetor For Edelbrock Performer 600 Cfm 4 Barrel Square Bore Manual Choke Compatible For Corvette Silverado Gmc

Generic$130.363.4★16 rev

BR-67255 Carburetor 4150 Model 650 CFM 4 Barrel For Holley Quick Fuel Brawler Double-Pumper Carburetor Mechanical Secondary Electric Choke Square Bore Flange Replace

Generic$176.383.7★19 rev

BR-67201 850CFM 4-Barrel Carburetor - 4150 Double Pumper Mechanical Secondary for Holley Quick Fuel Brawler Race Series - Square Bore No Choke Dual Inlet Performance Carb

Generic$178.583.4★8 rev

Newest

by launch date

Gihdfer 1406 Carburetor Replacement 600 CFM 4 Barrel Square Bore Electric Choke AFB Style Compatible with Performer Manifolds for Silverado Corvette Mustang GMC Truck

Gihdfer$151.080 rev

8mo ago

BR-67201 850CFM 4-Barrel Carburetor - 4150 Double Pumper Mechanical Secondary for Holley Quick Fuel Brawler Race Series - Square Bore No Choke Dual Inlet Performance Carb

Generic$178.588 rev

10mo ago

BR-67199 Carburetor for Holley 650 Cfm Race Series Mechanical Secondary Carburetor 4 Barrel 4150 Square Bore No Choke Dual Inlet

Generic$178.9211 rev

11mo ago

1404 Carburetor 500 CFM 4-Barrel Square Bore Carburetor with Air Valve Secondary Manual Choke Replacement for Chevy 305 Engine

Generic$122.872 rev

1y ago

1404 Carburetor Performer 500 CFM 4 Barrel Square Bore Air Valve Secondary Manual Choke Replacement For Chevy 305 Engine

Generic$119.833 rev

1y ago

What buyers say about 4 barrel carburetor

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

What buyers love

Value For Money18%

“it was cheap”

Efficiency14%

“Works perfectly”

Size-Overall12%

“Good fit”

Quality-Overall11%

“Great Product”

Advertised Vs Actual Product8%

“works as advertised”

Assembly/Installation7%

“I did everything right installing this &*#@ thing”

Design-Overall6%

“Well constructed”

Leak-Proof4%

“hasnt leaked since”

Fuel Efficiency4%

“fuel efficiency was good”

Durability4%

“which immediately makes it feel durable & well constructed”

What buyers complain about

Quality-Overall28%

“Poor quality”

Leak-Proof24%

“Fuel leaks”

Defective Material/Parts6%

“Bad car parts”

Functionality-Overall6%

“Has never ran correctly”

Assembly/Installation6%

“Could not set”

Fuel Efficiency4%

“as soon as I would give it gas, the engine would bog terribly and often die”

Durability3%

“I am afraid of breaking it”

Motor Issues3%

“This was a bad engine part”

Maintenance And Repair3%

“if it even could be fixed so unfortunately I have to return it”

Value For Money2%

“You dont save $300 you cost yourself $200”

Top return reasons

Leak-Proof18%

Size-Overall17%

Functionality-Overall17%

Defective Material/Parts11%

Compatibility-Overall8%

Mechanism Issues4%

Fuel Efficiency3%

Product Condition3%

Quality-Overall3%

Advertised Vs Actual Product2%

Common questions

Is 4 barrel carburetor profitable to sell on Amazon United States?: The niche generates $95K/yr across 44 tracked products. 3 of 7 products launched in the last 360 days are still selling. 90-day search growth is +12.2%. Flapen's verdict: Skip it (45/100).
How competitive is the 4 barrel carburetor niche?: 22 brands and 91 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 78% of demand.
What do buyers complain about in 4 barrel carburetor?: Top complaints mined from reviews: Quality-Overall, Leak-Proof, Defective Material/Parts. The return rate is 7.9% — above our launch gate.
When does demand for 4 barrel carburetor peak?: Demand peaks in Sep; the busiest month runs 1.9× the quietest.
What does it cost to enter the 4 barrel carburetor niche?: Listings span $83.61–$464.13; the average listing price is $187.08 (sweet spot $15–$100). The average incumbent carries 62 reviews — the moat a new listing must climb.