---
title: "mercruiser alpha one gen 2 impeller kit — Niche Verdict: Skip it (49/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/mercruiser-alpha-one-gen-2-impeller-kit"
last_updated: "2026-07-15T06:38:51.303Z"
locale: en
meta:
  description: "a concentrated shelf (top 5 take 84% of clicks) — mercruiser alpha one gen 2 impeller kit doesn't clear our bar today."
  "og:description": "a concentrated shelf (top 5 take 84% of clicks) — mercruiser alpha one gen 2 impeller kit doesn't clear our bar today."
  "og:title": "mercruiser alpha one gen 2 impeller kit — Niche Verdict: Skip it (49/100) | Amazon United States - Flapen"
---

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# **mercruiser alpha one gen 2 impeller kit**

**Skip it**

A concentrated shelf (top 5 take 84% of clicks) — this niche doesn't clear our bar today.

Market size 18Growth 98Conversion 83Competition 13Returns 52Price range 57Avg price 94Brand share 17Review moat 87Quality gap 19

**Growth**

**Incredible****+230.2%**

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

**Avg price**

**Great****$46.81**

avg listing price — sweet spot $15–$100

**Review moat**

**Great****256.91**

avg incumbent reviews — the moat a new listing must climb

**Conversion**

**Great****8.9%**

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

**Price range**

**Good****$23.13–$158.42**

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

**Returns**

**Good****2.9%**

return rate — above 6% kills the launch gate

**Quality gap**

**Bad****4.7★**

avg incumbent rating — lower means beatable quality

**Market size**

**Bad****$72K**

$72K/yr · 17K searches

**Brand share**

**Bad****93%**

top-5 brand share — brand-locked demand

**Competition**

**Bad****84%**

top-5 click share — a locked-up shelf

## **Competition**

The top 5 products capture 84% of clicks — a locked-up shelf that new listings rarely crack.

**Brands**

**8 **▼falling

**Sellers**

**43**

**Top-5 brand share**

**93%**

**Open market**

**4%**

- Quicksilver41% - GHmarine23% - AUTOBABA17% - SeaSierra9% - MOCW3% - UANOFCN2% - Open — no brand owns it (2 brands, 4%)

## **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%$7K20%$14K30%$22K40%$29K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

All 11 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Quicksilver by Mercury Marine 8M0100526 Water Pump Repair Kit for Mercury or Mariner Outboards and MerCruiser Sterndrives](https://m.media-amazon.com/images/I/31iqLgQASmL.jpg)**Quicksilver by Mercury Marine 8M0100526 Water Pump Repair Kit for Mercury or Mariner Outboards and MerCruiser Sterndrives**Quicksilver**$52.89**4.8★1,698 rev](https://www.amazon.com/dp/B01BNSV0PQ) [2![GHmarine 43026Q06 Water Pump Impeller Kit for MerCruiser Alpha 1 Gen 2 Sterndrives Replacement 47-43026Q06 8M0100526](https://m.media-amazon.com/images/I/41i8xfOk-JL.jpg)**GHmarine 43026Q06 Water Pump Impeller Kit for MerCruiser Alpha 1 Gen 2 Sterndrives Replacement 47-43026Q06 8M0100526**GHmarine**$24.05**4.6★362 rev](https://www.amazon.com/dp/B07L4J9X6K) [3![AUTOBABA Water Pump Repair Kit Compatible with 1991-2021 Mercury MerCruiser Alpha 1 Gen 2 Drives Water Pump Impeller Repair Replace 817275A4 817275Q05 18-3147 47-43026-1 47-43026-2](https://m.media-amazon.com/images/I/41-M-RIZygL.jpg)**AUTOBABA Water Pump Repair Kit Compatible with 1991-2021 Mercury MerCruiser Alpha 1 Gen 2 Drives Water Pump Impeller Repair Replace 817275A4 817275Q05 18-3147 47-43026-1 47-43026-2**AUTOBABA**$46.94**4.6★117 rev](https://www.amazon.com/dp/B0BLJFKRD9) [4![Quicksilver 817275Q05 Upper Water Pump Repair Kit with Impeller and Gaskets for MerCruiser Alpha One Gen II and Vazer Sterndrive Units](https://m.media-amazon.com/images/I/31odlC-A1rL.jpg)**Quicksilver 817275Q05 Upper Water Pump Repair Kit with Impeller and Gaskets for MerCruiser Alpha One Gen II and Vazer Sterndrive Units**Quicksilver**$158.42**4.6★236 rev](https://www.amazon.com/dp/B003YGOSO6) [5![8M0100526 Water Pump Impeller Kit for Alpha One Gen 2 Sterndrive Engines Replacement 43026Q06](https://m.media-amazon.com/images/I/41nLhqkVnPL.jpg)**8M0100526 Water Pump Impeller Kit for Alpha One Gen 2 Sterndrive Engines Replacement 43026Q06**SeaSierra**$25.22**4.9★23 rev](https://www.amazon.com/dp/B0DKNLD1M4)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![817275A4 Water Pump Impeller Repair Kit for Mercruiser Alpha 1 GEN 2 D494569 Sterndrive Engine Cooling System Service Compatible with 46-847275A5 Replacement Sierra 18-3147 GLM Marine 12414](https://m.media-amazon.com/images/I/41cmirMriIL.jpg)**817275A4 Water Pump Impeller Repair Kit for Mercruiser Alpha 1 GEN 2 D494569 Sterndrive Engine Cooling System Service Compatible with 46-847275A5 Replacement Sierra 18-3147 GLM Marine 12414**GHmarine**$45.78**0 rev3mo ago](https://www.amazon.com/dp/B0GVG6V41B) [![8M0100526 Water Pump Impeller Kit for Alpha One Gen 2 Sterndrive Engines Replacement 43026Q06](https://m.media-amazon.com/images/I/41nLhqkVnPL.jpg)**8M0100526 Water Pump Impeller Kit for Alpha One Gen 2 Sterndrive Engines Replacement 43026Q06**SeaSierra**$25.22**23 rev1y ago](https://www.amazon.com/dp/B0DKNLD1M4) [![43026Q06 Water Pump Impeller Kit Compatible with Mercruiser Alpha One 1 Gen 2 Stern Drive Replacement 8M0100526 18-3265](https://m.media-amazon.com/images/I/41T1OjC4-mL.jpg)**43026Q06 Water Pump Impeller Kit Compatible with Mercruiser Alpha One 1 Gen 2 Stern Drive Replacement 8M0100526 18-3265**SeaSierra**$26.53**9 rev1y ago](https://www.amazon.com/dp/B0DKNLBGHC) [![817275Q05 Upper Water Pump Repair Kit Compatible with 1991-2021 Mercury MerCruiser Alpha 1 Gen 2 Drives 200HP 225HP 250HP and Vazer Drives Water Pump Impeller Replaces 817275A4 18-3147](https://m.media-amazon.com/images/I/41V6kGDGMDL.jpg)**817275Q05 Upper Water Pump Repair Kit Compatible with 1991-2021 Mercury MerCruiser Alpha 1 Gen 2 Drives 200HP 225HP 250HP and Vazer Drives Water Pump Impeller Replaces 817275A4 18-3147**RANSOTO**$43.30**28 rev2y ago](https://www.amazon.com/dp/B0D2KRVBVY) [![MOCW Water Pump Repair Kit Compatible with 1991-2021 Mercury MerCruiser Alpha 1 Gen 2 Drives 200HP 225HP 250HP Water Pump Impeller Kit Replace 817275A4 817275Q05 18-3147 47-43026-1 47-43026-2](https://m.media-amazon.com/images/I/41rPzYHVySL.jpg)**MOCW Water Pump Repair Kit Compatible with 1991-2021 Mercury MerCruiser Alpha 1 Gen 2 Drives 200HP 225HP 250HP Water Pump Impeller Kit Replace 817275A4 817275Q05 18-3147 47-43026-1 47-43026-2**MOCW**$43.47**51 rev2y ago](https://www.amazon.com/dp/B0CCJL6XDG)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![817275A4 Water Pump Impeller Repair Kit for Mercruiser Alpha 1 GEN 2 D494569 Sterndrive Engine Cooling System Service Compatible with 46-847275A5 Replacement Sierra 18-3147 GLM Marine 12414](https://m.media-amazon.com/images/I/41cmirMriIL.jpg)**817275A4 Water Pump Impeller Repair Kit for Mercruiser Alpha 1 GEN 2 D494569 Sterndrive Engine Cooling System Service Compatible with 46-847275A5 Replacement Sierra 18-3147 GLM Marine 12414**GHmarine**$45.78**0.0★**▲ 88%**](https://www.amazon.com/dp/B0GVG6V41B) [![GHmarine 43026Q06 Water Pump Impeller Kit for MerCruiser Alpha 1 Gen 2 Sterndrives Replacement 47-43026Q06 8M0100526](https://m.media-amazon.com/images/I/41i8xfOk-JL.jpg)**GHmarine 43026Q06 Water Pump Impeller Kit for MerCruiser Alpha 1 Gen 2 Sterndrives Replacement 47-43026Q06 8M0100526**GHmarine**$24.05**4.6★**▲ 44%**](https://www.amazon.com/dp/B07L4J9X6K) [![8M0100526 Water Pump Impeller Kit for Alpha One Gen 2 Sterndrive Engines Replacement 43026Q06](https://m.media-amazon.com/images/I/41nLhqkVnPL.jpg)**8M0100526 Water Pump Impeller Kit for Alpha One Gen 2 Sterndrive Engines Replacement 43026Q06**SeaSierra**$25.22**4.9★**▲ 40%**](https://www.amazon.com/dp/B0DKNLD1M4) [![43026Q06 Water Pump Impeller Kit Compatible with Mercruiser Alpha One 1 Gen 2 Stern Drive Replacement 8M0100526 18-3265](https://m.media-amazon.com/images/I/41T1OjC4-mL.jpg)**43026Q06 Water Pump Impeller Kit Compatible with Mercruiser Alpha One 1 Gen 2 Stern Drive Replacement 8M0100526 18-3265**SeaSierra**$26.53**5.0★**▲ 21%**](https://www.amazon.com/dp/B0DKNLBGHC) [![UanofCn 43026Q06 Water Pump Impeller Kit for MerCruiser Alpha one Gen 2 Sterndrives Replacement 47-43026Q06 47-8M0100526 Sierra 18-3214](https://m.media-amazon.com/images/I/41p++J3ueCL.jpg)**UanofCn 43026Q06 Water Pump Impeller Kit for MerCruiser Alpha one Gen 2 Sterndrives Replacement 47-43026Q06 47-8M0100526 Sierra 18-3214**UANOFCN**$23.13**4.6★**▲ 19%**](https://www.amazon.com/dp/B07DD62CTZ)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — +230.2% search growth over the last 90 days.

900700Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 10.1×

## **Reviews**

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

### **What buyers love **

**Advertised Vs Actual Product**26%

*“Worked as advertised”*

**Size-Overall**24%

*“Perfect fit”*

**Quality-Overall**18%

*“Best done as a two man job”*

**Value For Money**15%

*“a great value for the money”*

**Filtration**6%

*“As described and works great as refill filters for my cat water fountain”*

**Motor Power**6%

*“It's what was needed to repair boat motor”*

**Pressure**3%

*“Everything looked good when I installed the impeller pumps water good”*

### **What buyers complain about **

**Advertised Vs Actual Product**25%

*“Pretty useless kit if there are no other parts that are shown”*

**Quality-Overall**25%

*“Seems to be qood quality”*

**Size-Overall**25%

*“Orings are not the correct size”*

**Weight Heavy**13%

*“Much heavier than after market”*

### **Top return reasons **

**Size-Overall**37%

**Advertised Vs Actual Product**16%

**Compatibility-Overall**14%

**Defective Material/Parts**12%

**Value For Money**5%

**Functionality-Overall**2%

**Product Condition**2%

**Rusts/Corrodes**1%

**Maintenance And Repair**1%

**Material Quality**1%