Is p621725 profitable to sell on Amazon United States?

The niche generates $90K/yr across 21 tracked products. 8 of 18 products launched in the last 360 days are still selling. 90-day search growth is -11.3%. Flapen's verdict: Worth a look (55/100).

How competitive is the p621725 niche?

18 brands and 20 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 61% of demand.

What do buyers complain about in p621725?

Top complaints mined from reviews: Filtration. The return rate is 0.2%.

When does demand for p621725 peak?

Demand peaks in Aug; the busiest month runs 2.2× the quietest.

What does it cost to enter the p621725 niche?

Listings span $24.06–$139.79; the average listing price is $56.75 (sweet spot $15–$100). The average incumbent carries 17 reviews — the moat a new listing must climb.

p621725

Worth a look

Shows a thin review moat (17 avg reviews), but soft demand (-11.3% this quarter) keeps it on the watch list.

Review moat

Incredible17.43

avg incumbent reviews — the moat a new listing must climb

Returns

Incredible0.2%

return rate — above 5% kills the launch gate

Avg price

Great$56.75

avg listing price — sweet spot $15–$100

Conversion

Great10.2%

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

Brand share

Good61%

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

Price range

Good$24.06–$139.79

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

Competition

Okay56%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Market size

Bad$90K

$90K/yr · 15K searches

Growth

Bad-11.3%

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

Signals Low Review Barrier High Price Out of Stock

According to Flapen's Amazon United States niche tracking, p621725 is a $90K/yr Amazon United States market (15K searches/yr). The top 5 brands hold 61% of demand. Demand peaks in Aug. Verdict: Worth a look — 55/100.

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

p621725 market data

Units sold / yr: 2K–3K; avg 100–250/product
Revenue / yr: $114K–$142K; units × avg price
Conversion rate: 10.2%
Avg BSR: #3,618
Page quality: 0%
Prime: 71%
Sponsored: 95%
Out of stock: 3.9%
Avg brand age: 18 months
Avg seller age: 241 days

Competition & brand share

The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.

Brands

18 rising

Sellers

Top-5 brand share

61%

Top 20: 100%

Top-5 click share

56%

Top 20: 100%

Open market

34%

SOKAKOSC24%
Delorin12%
Pnkauto9%
ZHMUYAOJY8%
LEVANLIGHT8%
muge racing6%

Demand & seasonality

Weekly Amazon search volume, last 97 weeks — -11.3% search growth over the last 90 days.

Peak months: Aug · busiest ÷ quietest = 2.2×

Open Trend

Top p621725 search terms

p6217255K/yr -4.1%8.8% conv.
kenworth t680 air filter5K/yr -8.9%5.4% conv.
peterbilt 579 air filter5K/yr -20.3%6.5% conv.

All search terms

Top p621725 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★)2 products missing review or click data not plotted

All 21 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

P621725 Engine Air Filter Fit for Kenworth T680 T880 Peterbilt 567 579 Replaces LAF6725 P637453 PA32000 WA11058 501058

SOKAKOSC$55.984.7★137 rev

Delorin P621725 Air Filter Compatible with Kenworth T680 T880 Peterbilt 567 579 Models Replaces LAF6725 P637453 PA32000 WA11058 501058

Delorin$55.264.9★10 rev

P621725 Engine Air Filter Compatible With Kenworth T680 T880 Peterbilt 567 579 Replace# P637453 PA32000 LAF6725 WA11058 501058

LEVANLIGHT$59.724.8★8 rev

P621725 Engine Air Filter for 15-20 Kenworth T680/T880 15-20 Peterbilt 567/579 Compatible with Kenworth T680/T880 Peterbilt 567/569 Engine Paccar MX13/MX11 CUM-MINS X15 Replaces LAF6725

ZHMUYAOJY$139.794.5★13 rev

P621725 Engine Air Filter Fit for Kenworth T680 T880 Peterbilt 567 579 Replaces LAF6725 P637453 PA32000 WA11058 501058

muge racing$54.673.8★6 rev

Newest

by launch date

P621725 Engine Air Filter for 15-20 Kenworth T680/T880 15-20 Peterbilt 567/579 Compatible with Kenworth T680/T880 Peterbilt 567/569 Engine Paccar MX13/MX11 CUM-MINS X15 Replaces LAF6725

ZHMUYAOJY$139.7913 rev

3mo ago

P621725 Engine Air Filter Compatible With Ken-worth T680 T880 Replacement for P621725 PA32000 P637453 LAF6725 P637453

Bounprem$35.065 rev

4mo ago

P621725 Engine Air Filters Compatible With Kenworth T680 T880 Peterbilt 567 579 Paccar MX-11 MX-13 Engines Replacement LAF6725 P637453 PA32000 WA11058 501058

Tygeacen$54.681 rev

5mo ago

P621725 Engine Air Filter Fit for Kenworth T680 T880 Peterbilt 567 579 Replaces P637453 PA32000 LAF6725 WA11058 501058 1 PCS

MYLSAUTO$54.813 rev

5mo ago

P621725 Engine Air Filter Fit for Kenworth T680 T880 Peterbilt 567 579 can be replaced with LAF6725 P637453 PA32000 WA11058 501058 (1 PCS blue)

Generic$42.830 rev

6mo ago

What buyers say about p621725

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

What buyers love

Size-Overall36%

“Excellent fit”

Quality-Overall24%

“Im very satisfied with the performance”

Value For Money21%

“Definitely worth it”

Filtration12%

“Air filter good”

Efficiency3%

“It work's grate”

Assembly/Installation3%

“Was easy to install”

What buyers complain about

Filtration100%

“DO NOT BUY THIS FILTER”

Top return reasons

Size-Overall37%

Filtration17%

Compatibility-Overall17%

Advertised Vs Actual Product7%

Quality-Overall5%

Functionality-Overall5%

Value For Money3%

Rubber Quality3%

Thin2%

Shape/Style2%

Common questions

Is p621725 profitable to sell on Amazon United States?: The niche generates $90K/yr across 21 tracked products. 8 of 18 products launched in the last 360 days are still selling. 90-day search growth is -11.3%. Flapen's verdict: Worth a look (55/100).
How competitive is the p621725 niche?: 18 brands and 20 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 61% of demand.
What do buyers complain about in p621725?: Top complaints mined from reviews: Filtration. The return rate is 0.2%.
When does demand for p621725 peak?: Demand peaks in Aug; the busiest month runs 2.2× the quietest.
What does it cost to enter the p621725 niche?: Listings span $24.06–$139.79; the average listing price is $56.75 (sweet spot $15–$100). The average incumbent carries 17 reviews — the moat a new listing must climb.