Is honda gx390 air filter profitable to sell on Amazon United States?

The niche generates $64K/yr across 11 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -3.2%. Flapen's verdict: Skip it (44/100).

How competitive is the honda gx390 air filter niche?

9 brands and 26 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 87% of demand.

What do buyers complain about in honda gx390 air filter?

Top complaints mined from reviews: Filtration, Size-Overall, Thickness. The return rate is 1.2%.

What does it cost to enter the honda gx390 air filter niche?

Listings span $8.21–$26.31; the average listing price is $14.74 (sweet spot $15–$100). The average incumbent carries 231 reviews — the moat a new listing must climb.

honda gx390 air filter

Skip it

A small market ($64K/yr) — this niche doesn't clear our bar today.

Conversion

Incredible17.0%

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

Returns

Great1.2%

return rate — above 5% kills the launch gate

Review moat

Great231.27

avg incumbent reviews — the moat a new listing must climb

Avg price

Good$14.74

avg listing price — sweet spot $15–$100

Price range

Good$8.21–$26.31

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

Brand share

Okay87%

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

Quality gap

Bad4.6★

avg incumbent rating — lower means beatable quality

Growth

Bad-3.2%

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

Competition

Bad75%

top-5 click share — a locked-up shelf

Market size

Bad$64K

$64K/yr · 26K searches

According to Flapen's Amazon United States niche tracking, honda gx390 air filter is a $64K/yr Amazon United States market (26K searches/yr). The top 5 brands hold 87% of demand. Verdict: Skip it — 44/100.

Data updated Jul 16, 2026 · scored weekly · How we score niches

honda gx390 air filter market data

Units sold / yr: 4K–5K; avg 250–500/product
Revenue / yr: $59K–$74K; units × avg price
Conversion rate: 17.0%
Avg BSR: #453
Page quality: 0%
Prime: 100%
Sponsored: 91%
Out of stock: 0.0%
Avg brand age: 53 months
Avg seller age: 200 days

Competition & brand share

The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.

Brands

9 falling

Sellers

Top-5 brand share

87%

Top 20: 100%

Top-5 click share

75%

Top 20: 100%

Open market

HOODELL53%
Moosefield13%
TURBOTUNITY8%
KINDZA7%
Panari5%
Poweka5%
Open — no brand owns it (3 brands, 8%)

Demand

Weekly Amazon search volume, last 20 weeks — -3.2% search growth over the last 90 days.

Open Trend

Top honda gx390 air filter search terms

honda gx390 air filter14K/yr +1.0%13.1% conv.
gx390 air filter6K/yr -7.7%15.7% conv.
honda gx 390 air filter3K/yr -8.2%15.5% conv.
honda gx340 air filter3K/yr -9.4%14.6% conv.

All search terms

Top honda gx390 air filter 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 11 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

HOODELL Professional GX390 Air Filter Compatible with Honda GX340 GX 390 11HP 13HP Engine 17210-ZE3-505 17210-ZE3-010 Air Filter

HOODELL$8.214.7★676 rev

Air Filter for Honda GX340 GX390 11HP/13HP Engines 1PC Upgraded Reinforced Design Replaces 17210-ZE3-505 & 17210-ZE3-010 Durable Filter for Pressure Washer Generator & Lawn Equipment

Moosefield$10.924.9★23 rev

HOODELL 3 Pack Air Filter Fit for Honda GX390 13HP GX340 11HP Engine Pressure Washer Air Cleaner Professional 17210-ZE3-010 17210-ZE3-505 Air Filter

HOODELL$14.174.7★166 rev

HOODELL 5 Pack 17210-ZE3-505 Air Filter Replace 17210-ZE3-010 Air Cleaner Fit for Honda GX390 13HP GX340 11HP Engine Air Filter

HOODELL$17.924.6★181 rev

Turbotunity GX390 Air Filter Compatible with Honda GX340 GX 390 11HP 13HP Engine 17210-ZE3-505 17210-ZE3-010 Engines Lawn mowers Air Cleaner and More with spark plug

TURBOTUNITY$10.174.6★108 rev

Newest

by launch date

Air Filter for Honda GX340 GX390 11HP/13HP Engines 1PC Upgraded Reinforced Design Replaces 17210-ZE3-505 & 17210-ZE3-010 Durable Filter for Pressure Washer Generator & Lawn Equipment

Moosefield$10.9223 rev

7mo ago

Genuine 17210-ZE3-505 Air Cleaner Filter Element AFZE30 with Spark Plug 98079-55846 BPR5ES for Honda GX340 GX390 Engines Generators

KINDZA$26.3113 rev

1y ago

Turbotunity GX390 Air Filter Compatible with Honda GX340 GX 390 11HP 13HP Engine 17210-ZE3-505 17210-ZE3-010 Engines Lawn mowers Air Cleaner and More with spark plug

TURBOTUNITY$10.17108 rev

2y ago

YAMAKATO GX390 Air Filter w/Housing Cover Air Cleaner Box Adapter Assembly for Honda and Clone GX270 GX340 270cc 301cc 420cc 389cc 188F 190F 192F

YAMAKATO$23.01125 rev

4y ago

HOODELL 3 Pack Air Filter Fit for Honda GX390 13HP GX340 11HP Engine Pressure Washer Air Cleaner Professional 17210-ZE3-010 17210-ZE3-505 Air Filter

HOODELL$14.17166 rev

5y ago

What buyers say about honda gx390 air filter

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

What buyers love

Size-Overall43%

“Fit good”

Value For Money12%

“Fair price”

Quality-Overall12%

“Good outer steel frame”

Filtration4%

“Great Air Filter Replacement”

Efficiency4%

“Works perfectly”

Advertised Vs Actual Product4%

“Actually as described”

Material Quality4%

“The filter is made very well with high quality materials”

Pressure3%

“Worked great on old Honda pressure washer”

Motor Power3%

“Engine runs like new now”

Strength2%

“Well constructed”

What buyers complain about

Filtration33%

“It is not a high quality filter”

Size-Overall21%

“too tall”

Thickness14%

“it's thicker material”

Mounting7%

“The upper mounting gromet is too thick”

Compression5%

“I need to glue my broken filter mine overnight because I needed the compressor running ASAP it was pretty labors to glue mine broken”

Ease Of Use5%

“not good to run without it”

Top return reasons

Size-Overall56%

Filtration19%

Compatibility-Overall12%

Functionality-Overall7%

Defective Material/Parts3%

Advertised Vs Actual Product2%

Shape/Style1%

Assembly/Installation1%

Common questions

Is honda gx390 air filter profitable to sell on Amazon United States?: The niche generates $64K/yr across 11 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -3.2%. Flapen's verdict: Skip it (44/100).
How competitive is the honda gx390 air filter niche?: 9 brands and 26 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 87% of demand.
What do buyers complain about in honda gx390 air filter?: Top complaints mined from reviews: Filtration, Size-Overall, Thickness. The return rate is 1.2%.
What does it cost to enter the honda gx390 air filter niche?: Listings span $8.21–$26.31; the average listing price is $14.74 (sweet spot $15–$100). The average incumbent carries 231 reviews — the moat a new listing must climb.