---
title: "Stenner Pump Parts — $415K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/stenner-pump-parts"
last_updated: "2026-08-10T00:42:35.505Z"
locale: en
meta:
description: "Niche score 57/100 · $415K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 57/100 · $415K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Stenner Pump Parts — $415K/yr Amazon US Niche (2026) - Flapen"
---
# **stenner pump parts**
**Worth a look**
Shows a thin review moat (121 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 56Growth 47Conversion 54Competition 65Returns 90Price range 18Avg price 52Brand share 9Review moat 94Quality gap 79
**Review moat**
**Great****120.69**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Great****1.2%**
return rate — above 5% kills the launch gate
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Competition**
**Good****46%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Good****$415K**
$415K/yr · 56K searches
**Conversion**
**Good****4.4%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Good****$168.50**
avg listing price — sweet spot $15–$100
**Growth**
**Okay****+17.6%**
90-day search growth — must beat 0% to launch
**Price range**
**Bad****$13.29–$482.64**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Bad****97%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, stenner pump parts is a $415K/yr Amazon United States market (56K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Sep. Verdict: Worth a look — 57/100.
Data updated Jul 16, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **stenner pump parts market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$506K–$674K**
- units × avg price
- **Conversion rate**
- **4.4%**
- **Avg BSR**
- **#954**
- **Page quality**
- **0%**
- **Prime**
- **77%**
- **Sponsored**
- **54%**
- **Out of stock**
- **0.3%**
- **Avg brand age**
- **68 months**
- **Avg seller age**
- **178 days**
## **Competition & brand share**
The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**7 **▲rising
**Sellers**
**41**
**Top-5 brand share**
**97%**
Top 20: 100%
**Top-5 click share**
**46%**
Top 20: 92%
**Open market**
**2%**
- Stenner Pump Company77% - Rocksteel6% - superbobi6% - Generic5% - Earthtec2% - LikeLion2% - Open — no brand owns it (1 brand, 2%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +17.6% search growth over the last 90 days.
1K750Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Sep · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/stenner-pump-parts/trend)
## **Top stenner pump parts search terms**
- **stenner pump parts**25K/yr+7.4%5.9% conv. - **stenner pump**20K/yr+26.8%2.7% conv. - **stenner pump company**7K/yr+34.1%2.3% conv. - **stenner pump 85mhp17**4K/yr+4.7%4.2% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/stenner-pump-parts/search-terms)
## **Top stenner pump parts 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.
0%5%$21K10%$42K15%$62K20%$83K1101001K 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 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Stenner 85MJH2A2S Peristaltic Adjustable-Head Chemical Injection Pump 0.817 GPD 100 PSI 120V Polycarbonate Black**Stenner Pump Company**$452.73**4.6★362 rev](https://www.amazon.com/dp/B015OJ74W8) [2**Stenner Product #QP102-1**Stenner Pump Company**$98.09**4.7★166 rev](https://www.amazon.com/dp/B00P0KVZOK) [3**Stenner Pump Company 45MJL5A1STAA 1/30HP 110V Adjustable Pump**Stenner Pump Company**$419.55**4.3★22 rev](https://www.amazon.com/dp/B00HEANSG2) [4**Stenner Pump 85MPHP17 (Motor and Pump Head only)**Stenner Pump Company**$353.29**4.4★38 rev](https://www.amazon.com/dp/B01GOUBRTC) [5**Stenner Pump Company QP255-1 Head-Single Head Pump**Stenner Pump Company**$91.63**4.5★187 rev](https://www.amazon.com/dp/B00HEAPRKM)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Replacement #2 Pump Tubes for Stenner Pumps | 5 Pack Santoprene 100PSI Tubes Compatible with Classic SVP and S Series Stenner Pump Parts. By RockSteel**Rocksteel**$19.91**8 rev2mo ago](https://www.amazon.com/dp/B0GL1JT75Q) [**QP500-1 Roller Assembly Compatible with Stenner Classic SVP and M128 Series Pumps**LikeLion**$29.70**2 rev6mo ago](https://www.amazon.com/dp/B0GGHJS6MG) [**superbobi 1/4-Inch UCDBINJ Injection Check Valve Replacement for Stenner Pumps Fits for 45/85/100/170 Series S128/S420/S10P/VX/S/SV Series Classic Series Peristaltic Pump Parts**superbobi**$16.04**12 rev10mo ago](https://www.amazon.com/dp/B0FRFKBJ85) [**1/4-Inch ST114 Suction Line Strainer Replacement Compatible with Stenner Pump 45/85/100/170 Series Classic SVP and M128 85mhp17 Pumps Parts Pump Strainer with Ceramic Filter 1 Pack**superbobi**$21.74**5 rev10mo ago](https://www.amazon.com/dp/B0FR7PKC8N) [**Rocksteel Duck Bill Check Valve Replacements | Compatible with Stenner Pumps - 10 Pack Santoprene Duckbill Valves Pump Parts (MCCVDB0)**Rocksteel**$15.07**14 rev10mo ago](https://www.amazon.com/dp/B0FN6Q1MCK)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Replacement #2 Pump Tubes for Stenner Pumps | 5 Pack Santoprene 100PSI Tubes Compatible with Classic SVP and S Series Stenner Pump Parts. By RockSteel**Rocksteel**$19.91**1.9★**▲ 247%**](https://www.amazon.com/dp/B0GL1JT75Q) [**QP500-1 Roller Assembly Compatible with Stenner Classic SVP and M128 Series Pumps**LikeLion**$29.70**1.0★**▲ 147%**](https://www.amazon.com/dp/B0GGHJS6MG) [**Stenner 85MHP17 Chemical Metering Pump Kit Adjustable Flow 0.8-17.0 GPD 100 PSI Chlorine-Compatible 220V/60Hz Sanoprene #2 Tube With 20 ft of 1/4 White Tubing (Model 85MJH2B1STAA)**Stenner Pump Company**$482.64**4.4★**▲ 106%**](https://www.amazon.com/dp/B0DSQQXX6G) [**Earthtec 5-Pack MCCP205 NO.5 (#5) Replacement for Sten-ner Peristaltic Metering Pump Tube Parts Fits All Classic SVP M128 85mhp17 45m5 45 85 100 & 170 Series with UCAK200 Ferrule (10 Pack)**Earthtec**$50.09**0.0★**▲ 77%**](https://www.amazon.com/dp/B0FFGYRSW4) [**1/4-Inch ST114 Suction Line Strainer Replacement Compatible with Stenner Pump 45/85/100/170 Series Classic SVP and M128 85mhp17 Pumps Parts Pump Strainer with Ceramic Filter 1 Pack**superbobi**$21.74**5.0★**▲ 49%**](https://www.amazon.com/dp/B0FR7PKC8N)
**~~View all trending →~~**
## **What buyers say about stenner pump parts**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**27%
*“This purchase was worth every dollar”*
**Quality-Overall**23%
*“Well made products”*
**Advertised Vs Actual Product**14%
*“Works as advertised”*
**Size-Overall**11%
*“It fit good”*
**Durability**7%
*“they still look brand new”*
**Assembly/Installation**6%
*“Got these to replace the old one on our water system installed very easy”*
**Pressure**2%
*“Reliable Injector Pump”*
### **What buyers complain about **
**Quality-Overall**20%
*“The quality of these Stenner pump tubes are horrible”*
**Durability**13%
*“Bad deal- they break”*
**Value For Money**10%
*“Overpriced for What It Is”*
**Leak-Proof**10%
*“had to modify the injector to stop leaking”*
**Advertised Vs Actual Product**5%
*“bad advertising”*
**Maintenance And Repair**5%
*“They had to replace a couple of parts”*
**Stretchability/Expandability/Elasticity**5%
*“stretches and is not usable in a stenner at all”*
**Pressure**3%
*“The quality of these Stenner pump tubes are horrible”*
**Strength**3%
*“part is very fragile”*
**Mounting**2%
*“I wish the add would have said this pump needed to be mounted up side down i don't have a way to mount this way in my well pump”*
### **Top return reasons **
**Size-Overall**40%
**Defective Material/Parts**20%
**Advertised Vs Actual Product**11%
**Functionality-Overall**8%
**Durability**6%
**Compatibility-Overall**5%
**Leak-Proof**2%
**Value For Money**2%
**Product Condition**1%
**Stiffness**1%
## **Common questions**
- **Is stenner pump parts profitable to sell on Amazon United States?**
- The niche generates $415K/yr across 26 tracked products. 2 of 6 products launched in the last 360 days are still selling. 90-day search growth is +17.6%. Flapen's verdict: Worth a look (57/100).
- **How competitive is the stenner pump parts niche?**
- 7 brands and 41 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 97% of demand.
- **What do buyers complain about in stenner pump parts?**
- Top complaints mined from reviews: Quality-Overall, Durability, Value For Money. The return rate is 1.2%.
- **When does demand for stenner pump parts peak?**
- Demand peaks in Sep; the busiest month runs 1.8× the quietest.
- **What does it cost to enter the stenner pump parts niche?**
- Listings span $13.29–$482.64; the average listing price is $168.50 (sweet spot $15–$100). The average incumbent carries 121 reviews — the moat a new listing must climb.
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