Is quadrajet carburetor profitable to sell on Amazon United States?

The niche generates $166K/yr across 28 tracked products. 3 of 8 products launched in the last 360 days are still selling. 90-day search growth is +1.1%. Flapen's verdict: Skip it (41/100).

How competitive is the quadrajet carburetor niche?

19 brands and 75 sellers compete. The top 5 products take 57% of clicks and top 5 brands hold 71% of demand.

What do buyers complain about in quadrajet carburetor?

Top complaints mined from reviews: Leak-Proof, Quality-Overall, Assembly/Installation. The return rate is 9.7% — above our launch gate.

When does demand for quadrajet carburetor peak?

Demand is steady year-round — the busiest month runs 1.6× the quietest.

What does it cost to enter the quadrajet carburetor niche?

Listings span $117.99–$449.58; the average listing price is $173.83 (sweet spot $15–$100). The average incumbent carries 92 reviews — the moat a new listing must climb.

quadrajet carburetor

Skip it

Prices mostly outside the sweet spot ($117.99–$449.58) — this niche doesn't clear our bar today.

Quality gap

Incredible3.8★

avg incumbent rating — lower means beatable quality

Review moat

Incredible92.25

avg incumbent reviews — the moat a new listing must climb

Brand share

Good71%

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

Avg price

Good$173.83

avg listing price — sweet spot $15–$100

Competition

Okay57%

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

Market size

Okay$166K

$166K/yr · 94K searches

Growth

Okay+1.1%

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

Conversion

Bad1.0%

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

Returns

Bad9.7%

return rate — above 5% kills the launch gate

Price range

Bad$117.99–$449.58

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, quadrajet carburetor is a $166K/yr Amazon United States market (94K searches/yr). The top 5 brands hold 71% of demand. Verdict: Skip it — 41/100.

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

quadrajet carburetor market data

Units sold / yr: 750–1K; avg 0–100/product
Revenue / yr: $130K–$174K; units × avg price
Conversion rate: 1.0%
Avg BSR: #4,049
Page quality: 0%
Prime: 100%
Sponsored: 86%
Out of stock: 11.2%
Avg brand age: 43 months
Avg seller age: 198 days

Competition & brand share

The top 5 products take 57% of clicks — established leaders, but buyers still shop beyond them.

Brands

19 falling

Sellers

Top-5 brand share

71%

Top 20: 100%

Top-5 click share

57%

Top 20: 91%

Open market

24%

THUNDERMINGO33%
condgreemee12%
liriuda11%
maXpeedingrods8%
ZJTBLL8%
Generic5%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +1.1% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.6×

Open Trend

Top quadrajet carburetor search terms

quadrajet carburetor39K/yr +9.5%1.1% conv.
rochester quadrajet carburetor20K/yr -4.0%0.9% conv.
4 barrel carburetor for chevy 3508K/yr -13.4%0.4% conv.
carburetors for chevy 3505K/yr +5.5%0.1% conv.
quadrajet5K/yr +5.6%0.7% conv.
chevy 350 carburetor4K/yr +16.4%0.4% conv.
chevy carburetor5K/yr -23.3%0.4% conv.
rochester carburetor4K/yr +12.9%0.6% conv.
350 chevy carburetor3K/yr -19.7%0.4% conv.

All search terms

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

Top sellers

by 90-day click share

4 Barrel Carburetor fits for Rochester Quadrajet Carburetor Chevy 350 454 327 427 V8 Engines GMC Trucks 1966-1973 big small block 4BBL Carb 1901R 4MV Corvettes 1975-1979 Divorced Choke 650CFM 750CFM

THUNDERMINGO$165.423.7★292 rev

Rochester Quadrajet Carburetor Electric Choke New 4 Barrel Quadrajet Carburetor 1904R 1906R Fits for Chevy 305 350 Chevrolet 4BBL Carb c.i Engine V8 750 CFM 4MV GM Cadillac 1980-1989 Vacuum Secondary

THUNDERMINGO$181.533.9★86 rev

Rochester Quadrajet Carburetor Electric Choke New 4 Barrel for Chevy 305 350 c.i Engine pickup 1904R 1906R 4MV Carburetor 1980-1989 Chevrolet GM Cadillac 600 650 750 CFM Vacuum Secondary

condgreemee$181.674.0★86 rev

Rochester Quadrajet Carburetor 4 Barrel For Chevy 1966-1973 327 350 427 Engines Trucks and Cars Replace 1975-1979 Corvettes 1901R 750 CFM 4BBL 4MV 1901-GG - Manual Divorced Choke Carb

liriuda$165.603.9★212 rev

maXpeedingrods 4 Barrel Carburetor Electric Choke Spread Bore Compatible with Chevy 305 350 5.0L 5.7L Engine 1980-1989 650/750 CFM Replaces 1904R 1906R 17066422 17080202

maXpeedingrods$185.443.8★53 rev

Newest

by launch date

LIRIUDA Rochester Quadrajet Carburetor 4 Barrel Black Anti-Corrosion for Chevy SBC BBC 327 350 427 454 V8 1966-1973 Trucks & Classic GM Cars Replace 1901R 4MV 750CFM Manual Divorced Choke

liriuda$166.426 rev

1mo ago

4 Barrel 750 CFM Carburetor Manual Choke Fit For Rochester Quadrajet Carburetor Chevy 350 454 327 427 V8 Engines GMC Trucks 1966-1973 big small block 4BBL Carb 1901R 4MV Corvettes 1975-1979 1901-GG

ZJTBLL$129.1214 rev

3mo ago

CNPAPC Rochester Quadrajet 4 Barrel Carburetor 1906R 1904R 4MV Electric Choke 750 CFM Vacuum Secondary Fits for 1980 Chevy Cars and 1981-1986 Chevy GMC Trucks Replaces 17080202 17080204 17080207

CNPAPC$138.682 rev

10mo ago

7028264 4 Barrel Carburetor Replacement Fit for Rochester Quadrajet 4MC 4MV 1968 Pontiac Firebird Replaces Part Number 7028271 7028276

Generic$144.086 rev

11mo ago

7028264 Carburetor for Rochester Quadrajet 4MV 4 Barrel Carb for 1968 Pontiac Replaces Part

Generic$146.107 rev

11mo ago

What buyers say about quadrajet carburetor

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

What buyers love

Value For Money27%

“it was for sure worth the money”

Size-Overall14%

“Good fit”

Efficiency12%

“Runs good”

Quality-Overall9%

“the overall build feels reliable”

Advertised Vs Actual Product6%

“Works better than expected”

Assembly/Installation5%

“was decently easy installation”

Durability5%

“which immediately makes it feel durable & well constructed”

Adjustability/Rotatability/Reclining3%

“The externally adjustable floats are a nice benefit, especially considering how weak the needle and seat are, causing lots of flooding”

Fuel Efficiency3%

“fuel efficiency was good”

Design-Overall3%

“Well constructed”

What buyers complain about

Leak-Proof24%

“both leak fuel”

Quality-Overall19%

“Poor quality”

Assembly/Installation8%

“To be fair I have not installed this item just yet”

Durability6%

“I am afraid of breaking it”

Value For Money5%

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

Suction5%

“the mixture screws springs dont seat well so its hard to set using a vacuum gauge”

Defective Material/Parts5%

“Couldn't get carburetor to function properly”

Functionality-Overall5%

“hitting the secondaries it cuts out”

Adhesion/Stickiness3%

“then then stick open”

Product Condition3%

“appears to have been used”

Top return reasons

Size-Overall20%

Functionality-Overall18%

Leak-Proof15%

Defective Material/Parts11%

Compatibility-Overall9%

Product Condition4%