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62

onan 5500 fuel pump

Worth a look

Shows a sweet-spot price point ($22.96 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 17Growth 50Conversion 81Competition 54Returns 62Price range 84Avg price 95Brand share 75Review moat 87Quality gap 83

Avg price

Incredible$22.96

avg listing price — sweet spot $15–$100

Review moat

Great262.79

avg incumbent reviews — the moat a new listing must climb

Price range

Great$9.67–$49.28

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

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Conversion

Great8.5%

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

Brand share

Great60%

top-5 brand share — no brand owns this niche

Returns

Good2.5%

return rate — above 6% kills the launch gate

Competition

Good53%

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

Growth

Good+20.1%

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

Market size

Bad$67K

$67K/yr · 34K searches

Competition

The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.

Brands

24 flat

Sellers

74

Top-5 brand share

60%

Open market

34%

  • Lucky Seven17%
  • Cummins14%
  • FLYINGAMZ11%
  • CNRAQR11%
  • WDPART8%
  • CARMOCAR6%

Product shelf

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%5%$3K10%$7K15%$10K20%$13K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 28 tracked products in this niche — three views at once, no toggling.

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +20.1% search growth over the last 90 days.
900700Spike '25Prime Day '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Jul, Aug · busiest ÷ quietest = 2.1×

Reviews

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

What buyers love

Size-Overall25%

“Direct fit”

Quality-Overall9%

“The product is fairly well made”

Value For Money9%

“Great value for the price”

Fuel Efficiency9%

“Good fuel pump”

Assembly/Installation8%

“easy install”

Efficiency6%

“Very Effective”

Advertised Vs Actual Product6%

“It works as expected”

Functionality-Overall6%

“Punp functions good as designed”

Filtration4%

“having the filter included is convenient”

Noise Level2%

“it was much quieter”

What buyers complain about

Functionality-Overall15%

“Did not work”

Durability11%

“doesn't last”

Quality-Overall10%

“The air filter is the worst quality”

Filtration9%

“The air filter is the worst quality”

Mounting8%

“Mounting holes for fuel pump dont line up with onans mounting holes”

Noise Level7%

“it is still extremely loud”

Size-Overall5%

“it was way too small In diameter”

Leak-Proof4%

“The other adapter nipples did not so after my first install I had to take it apart again to put on Teflon because it had a slow leak”

Heating3%

“Cant take the heat”

Pressure3%

“Lasted for a year of occasional use maybe 100 hours then would no longer supply enough pressure to keep generator running”

Top return reasons

Size-Overall25%
Defective Material/Parts14%
Compatibility-Overall12%
Mounting10%
Functionality-Overall7%
Filtration5%
Advertised Vs Actual Product5%
Leak-Proof5%
Assembly/Installation3%
Value For Money3%