onan 4000 carburetor
Skip itA concentrated shelf (top 5 take 87% of clicks) — this niche doesn't clear our bar today.
Avg price
Incredible$35.68avg listing price — sweet spot $15–$100
Price range
Incredible$23.74–$57.69cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great122.38avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Conversion
Great7.2%search→purchase rate — share of searches ending in a sale
Growth
Good+31.7%90-day search growth — must beat 0% to launch
Returns
Okay4.3%return rate — above 6% kills the launch gate
Brand share
Okay87%top-5 brand share — brands hold most of the demand
Market size
Bad$61K$61K/yr · 23K searches
Competition
Bad87%top-5 click share — a locked-up shelf
Competition
The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.Brands
13 rising
Sellers
14
Top-5 brand share
87%
Open market
17%
- ATRACYPART34%
- Topkidame30%
- sworwin8%
- ANZBENH4%
- JDLLONG4%
- goodfind684%
- Open — no brand owns it (7 brands, 17%)
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 13 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Carburetor Carb with Gaskets for Onan Cummins Generator & Microquiet 4000-Watt 4KYFA26100 4KYFA26100P 4KYFA26100K Replace# A042P619 A041D736 146-0785
ATRACYPART$33.214.2★595 rev
Carburetor Carb for Onan 146-0785 146-0803 Generator KY Series A042P619 for Onan Cummins A041D736 Microquiet 4000 Watt 4KYFA26100 4KYFA26100P 4KYFA26100K Generator Replaces 146-0759
Topkidame$35.114.0★64 rev
Carburetor Compatible with Onan Cummins A042P619 Microquiet 4000 Watt Onan 4KYFA26100 4KYFA26100P 4KYFA26100K KY Generator Replaces 146-0759 146-0785 146-0803 with Air Filter
sworwin$35.734.7★30 rev
Carburetor for Onan Cummins Microquiet KY Series 4000-Watt 4KYFA26100 4KYFA26100P 4KYFA26100K Replace A042P619 146-0785 A041D736 146-0635 146-0703 146-0742 146-0803 146-0743 146-0759
ANZBENH$23.745.0★3 rev
JDLLONG A042P619 Carburetor Kit for Onan Cummins Microquiet 4000 Watt 4KYFA26100 4KYFA26100P 4KYFA26100K Carb A041D736 A042P622 146-0785 146-0803 with 149-2311 Fuel Pump and 1403280 Air Filter
JDLLONG$46.504.7★18 rev
Newest
by launch dateCarburetor for Onan Cummins Microquiet KY Series 4000-Watt 4KYFA26100 4KYFA26100P 4KYFA26100K Replace A042P619 146-0785 A041D736 146-0635 146-0703 146-0742 146-0803 146-0743 146-0759
ANZBENH$23.743 rev
Carburetor Compatible for Onan Cummins A042P619 Microquiet 4000 Watt Onan 4KYFA26100 4KYFA26100P 4KYFA26100K KY Generator Replaces 146-0759 146-0785 146-0803
Dosens$39.39162 rev
Carbhub RV Generator A041D744 Carburetor Fit for Onan QG 4000 4KYFA-6747P for Cummins 0A6562 KY Series Generator Carb Replace 146-0881
Carbhub$33.207 rev
4KYFA-6747P Carburetor for Onan 4000 Generator A041D744 Cummins 0A6562 KY Generator Replace# 146-0881
BioLion$32.687 rev
Carburetor Compatible with Onan Cummins A042P619 Microquiet 4000 Watt Onan 4KYFA26100 4KYFA26100P 4KYFA26100K KY Generator Replaces 146-0759 146-0785 146-0803 with Air Filter
sworwin$35.7330 rev
Trending
90-day click momentumJDLLONG A042P619 Carburetor Kit for Onan Cummins Microquiet 4000 Watt 4KYFA26100 4KYFA26100P 4KYFA26100K Carb A041D736 A042P622 146-0785 146-0803 with 149-2311 Fuel Pump and 1403280 Air Filter
JDLLONG$46.504.7★
Carburetor for Onan Cummins Microquiet KY Series 4000-Watt 4KYFA26100 4KYFA26100P 4KYFA26100K Replace A042P619 146-0785 A041D736 146-0635 146-0703 146-0742 146-0803 146-0743 146-0759
ANZBENH$23.745.0★
Carburetor Compatible for Onan Cummins A042P619 Microquiet 4000 Watt Onan 4KYFA26100 4KYFA26100P 4KYFA26100K KY Generator Replaces 146-0759 146-0785 146-0803
Dosens$39.394.3★
4KYFA-6747P Carburetor for Onan 4000 Generator A041D744 Cummins 0A6562 KY Generator Replace# 146-0881
BioLion$32.684.0★
Carbhub RV Generator A041D744 Carburetor Fit for Onan QG 4000 4KYFA-6747P for Cummins 0A6562 KY Series Generator Carb Replace 146-0881
Carbhub$33.203.6★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +31.7% search growth over the last 90 days.Peak months: Jul, Aug, Sep · busiest ÷ quietest = 2.1×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Simple install”
“runs as good as new”
“Great deal”
“Worked as described”
“Good fit”
“Very easy to replace”
“Great product”
“better than it has in years”
“Very pleased to report that my generator is running perfectly”
“And much easier than trying to clean/rebuild the old carb”
What buyers complain about
“It didn't work”
“died in ~5minutes”
“I wish I had replaced it sooner”
“Junk”
“I did not think to check before installing”
“Received a used carburetor and hose only”
“VACUUM LEAK proven with smoke test”
“Everything's tight in there”
“The reason is that the choke close spring is defective”
“Waste of money unless you need it for some parts to fix your OEM carb. OEM around $600 to $700 new”