---
title: "p621725 — Niche Verdict: Worth a look (55/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/p621725"
last_updated: "2026-07-14T07:24:11.221Z"
locale: en
meta:
  description: "p621725 shows a thin review moat (17 avg reviews), but soft demand (-11.3% this quarter) keeps it on the watch list."
  "og:description": "p621725 shows a thin review moat (17 avg reviews), but soft demand (-11.3% this quarter) keeps it on the watch list."
  "og:title": "p621725 — Niche Verdict: Worth a look (55/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **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.

Market size 22Growth 19Conversion 88Competition 48Returns 99Price range 66Avg price 91Brand share 74Review moat 99Quality gap 27

**Review moat**

**Incredible****17.43**

avg incumbent reviews — the moat a new listing must climb

**Returns**

**Incredible****0.2%**

return rate — above 6% kills the launch gate

**Avg price**

**Great****$56.75**

avg listing price — sweet spot $15–$100

**Conversion**

**Great****10.2%**

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

**Brand share**

**Good****61%**

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**

**Okay****56%**

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

**Quality gap**

**Okay****4.6★**

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

## **Competition**

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

**Brands**

**18 **▲rising

**Sellers**

**20**

**Top-5 brand share**

**61%**

**Open market**

**34%**

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

## **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%10%$9K20%$18K30%$27K40%$36K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

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

[1![P621725 Engine Air Filter Fit for Kenworth T680 T880 Peterbilt 567 579 Replaces LAF6725 P637453 PA32000 WA11058 501058](https://m.media-amazon.com/images/I/417qEzlTC7L.jpg)**P621725 Engine Air Filter Fit for Kenworth T680 T880 Peterbilt 567 579 Replaces LAF6725 P637453 PA32000 WA11058 501058**SOKAKOSC**$55.98**4.7★137 rev](https://www.amazon.com/dp/B0FKXZBHV3) [2![Delorin P621725 Air Filter Compatible with Kenworth T680 T880 Peterbilt 567 579 Models Replaces LAF6725 P637453 PA32000 WA11058 501058](https://m.media-amazon.com/images/I/41L1Wt2TBhL.jpg)**Delorin P621725 Air Filter Compatible with Kenworth T680 T880 Peterbilt 567 579 Models Replaces LAF6725 P637453 PA32000 WA11058 501058**Delorin**$55.26**4.9★10 rev](https://www.amazon.com/dp/B0G1RD2H7H) [3![P621725 Engine Air Filter Compatible With Kenworth T680 T880 Peterbilt 567 579 Replace# P637453 PA32000 LAF6725 WA11058 501058](https://m.media-amazon.com/images/I/41EW8mmJMWL.jpg)**P621725 Engine Air Filter Compatible With Kenworth T680 T880 Peterbilt 567 579 Replace# P637453 PA32000 LAF6725 WA11058 501058**LEVANLIGHT**$59.72**4.8★8 rev](https://www.amazon.com/dp/B0FPQLBW59) [4![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](https://m.media-amazon.com/images/I/41sF85pD1sL.jpg)**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**$139.79**4.5★13 rev](https://www.amazon.com/dp/B0GSVZBP49) [5![P621725 Engine Air Filter Fit for Kenworth T680 T880 Peterbilt 567 579 Replaces LAF6725 P637453 PA32000 WA11058 501058](https://m.media-amazon.com/images/I/410cOnBvl9L.jpg)**P621725 Engine Air Filter Fit for Kenworth T680 T880 Peterbilt 567 579 Replaces LAF6725 P637453 PA32000 WA11058 501058**muge racing**$54.67**3.8★6 rev](https://www.amazon.com/dp/B0FXWJDSND)

**~~View all top sellers →~~**

### **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](https://m.media-amazon.com/images/I/41sF85pD1sL.jpg)**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**$139.79**13 rev3mo ago](https://www.amazon.com/dp/B0GSVZBP49) [![P621725 Engine Air Filter Compatible With Ken-worth T680 T880 Replacement for P621725 PA32000 P637453 LAF6725 P637453](https://m.media-amazon.com/images/I/312L0lkuoOL.jpg)**P621725 Engine Air Filter Compatible With Ken-worth T680 T880 Replacement for P621725 PA32000 P637453 LAF6725 P637453**Bounprem**$35.06**5 rev4mo ago](https://www.amazon.com/dp/B0G41P5NYV) [![P621725 Engine Air Filters Compatible With Kenworth T680 T880 Peterbilt 567 579 Paccar MX-11 MX-13 Engines Replacement LAF6725 P637453 PA32000 WA11058 501058](https://m.media-amazon.com/images/I/31YvkOntkeL.jpg)**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**$54.68**1 rev5mo ago](https://www.amazon.com/dp/B0GLF5CKKP) [![P621725 Engine Air Filter Fit for Kenworth T680 T880 Peterbilt 567 579 Replaces P637453 PA32000 LAF6725 WA11058 501058 1 PCS](https://m.media-amazon.com/images/I/41yDM3yy2nL.jpg)**P621725 Engine Air Filter Fit for Kenworth T680 T880 Peterbilt 567 579 Replaces P637453 PA32000 LAF6725 WA11058 501058 1 PCS**MYLSAUTO**$54.81**3 rev5mo ago](https://www.amazon.com/dp/B0GL232952) [![P621725 Engine Air Filter Fit for Kenworth T680 T880 Peterbilt 567 579 can be replaced with LAF6725 P637453 PA32000 WA11058 501058 (1 PCS blue)](https://m.media-amazon.com/images/I/41dTpPjbxsL.jpg)**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**$42.83**0 rev6mo ago](https://www.amazon.com/dp/B0GX9HWS3L)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Upgraded Engine Air Filter for Kenworth T680/T880 Peterbilt 567/579 Replaces # P621725 LAF6725 P637453 PA32000 WA11058 501058 (White)](https://m.media-amazon.com/images/I/41-96H0JnsL.jpg)**Upgraded Engine Air Filter for Kenworth T680/T880 Peterbilt 567/579 Replaces # P621725 LAF6725 P637453 PA32000 WA11058 501058 (White)**Pnkauto**$48.35**3.5★**▲ 246%**](https://www.amazon.com/dp/B0FXRFMBG8) [![Upgrade Engine Air Filter for Kenworth T680/T880 Peterbilt 567/579 Replaces # P621725 LAF6725 P637453 PA32000 WA11058 501058 (Yellow)](https://m.media-amazon.com/images/I/41lWHlZBPoL.jpg)**Upgrade Engine Air Filter for Kenworth T680/T880 Peterbilt 567/579 Replaces # P621725 LAF6725 P637453 PA32000 WA11058 501058 (Yellow)**Pnkauto**$50.65**4.3★**▲ 246%**](https://www.amazon.com/dp/B0FXRBJ5FD) [![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](https://m.media-amazon.com/images/I/41sF85pD1sL.jpg)**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**$139.79**4.5★**▲ 245%**](https://www.amazon.com/dp/B0GSVZBP49) [![P621725 Engine Air Filter Fit for Kenworth T680 T880 Peterbilt 567 579 can be replaced with LAF6725 P637453 PA32000 WA11058 501058 (1 PCS blue)](https://m.media-amazon.com/images/I/41dTpPjbxsL.jpg)**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**$42.83**0.0★**▲ 245%**](https://www.amazon.com/dp/B0GX9HWS3L) [![Upgraded Engine Air Filter for Kenworth T680/T880 Peterbilt 567/579 Replaces #P621725 LAF6725 P637453 PA32000 WA11058 501058 (Blue)](https://m.media-amazon.com/images/I/415amyflkpL.jpg)**Upgraded Engine Air Filter for Kenworth T680/T880 Peterbilt 567/579 Replaces #P621725 LAF6725 P637453 PA32000 WA11058 501058 (Blue)**Pnkauto**$52.08**4.3★**▲ 207%**](https://www.amazon.com/dp/B0FXRGMRZY)

**~~View all trending →~~**

## **Demand & seasonality**

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

450350Spike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Aug · busiest ÷ quietest = 2.2×

## **Reviews**

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

### **What buyers love **

**Size-Overall**36%

*“Excellent fit”*

**Quality-Overall**24%

*“Im very satisfied with the performance”*

**Value For Money**21%

*“Definitely worth it”*

**Filtration**12%

*“Air filter good”*

**Efficiency**3%

*“It work's grate”*

**Assembly/Installation**3%

*“Was easy to install”*

### **What buyers complain about **

**Filtration**100%

*“DO NOT BUY THIS FILTER”*

### **Top return reasons **

**Size-Overall**37%

**Filtration**17%

**Compatibility-Overall**17%

**Advertised Vs Actual Product**7%

**Quality-Overall**5%

**Functionality-Overall**5%

**Value For Money**3%

**Rubber Quality**3%

**Thin**2%

**Shape/Style**2%