stenner pump parts
Worth a lookShows a thin review moat (121 avg reviews), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Review moat
Great120.69avg incumbent reviews — the moat a new listing must climb
Returns
Great1.2%return rate — above 5% kills the launch gate
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Competition
Good46%top-5 click share — leaders hold, buyers still browse
Market size
Good$415K$415K/yr · 56K searches
Conversion
Good4.4%search→purchase rate — share of searches ending in a sale
Avg price
Good$168.50avg listing price — sweet spot $15–$100
Growth
Okay+17.6%90-day search growth — must beat 0% to launch
Price range
Bad$13.29–$482.64cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Bad97%top-5 brand share — brand-locked demand
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
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.Peak months: Sep · busiest ÷ quietest = 1.8×
Top stenner pump parts search terms
- stenner pump parts25K/yr
- stenner pump20K/yr
- stenner pump company7K/yr
- stenner pump 85mhp174K/yr
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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Stenner 85MJH2A2S Peristaltic Adjustable-Head Chemical Injection Pump 0.817 GPD 100 PSI 120V Polycarbonate Black
Stenner Pump Company$452.734.6★362 rev
Stenner Product #QP102-1
Stenner Pump Company$98.094.7★166 rev
Stenner Pump Company 45MJL5A1STAA 1/30HP 110V Adjustable Pump
Stenner Pump Company$419.554.3★22 rev
Stenner Pump 85MPHP17 (Motor and Pump Head only)
Stenner Pump Company$353.294.4★38 rev
Stenner Pump Company QP255-1 Head-Single Head Pump
Stenner Pump Company$91.634.5★187 rev
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$19.918 rev
QP500-1 Roller Assembly Compatible with Stenner Classic SVP and M128 Series Pumps
LikeLion$29.702 rev
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$16.0412 rev
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$21.745 rev
Rocksteel Duck Bill Check Valve Replacements | Compatible with Stenner Pumps - 10 Pack Santoprene Duckbill Valves Pump Parts (MCCVDB0)
Rocksteel$15.0714 rev
Trending
90-day click momentumReplacement #2 Pump Tubes for Stenner Pumps | 5 Pack Santoprene 100PSI Tubes Compatible with Classic SVP and S Series Stenner Pump Parts. By RockSteel
Rocksteel$19.911.9★
QP500-1 Roller Assembly Compatible with Stenner Classic SVP and M128 Series Pumps
LikeLion$29.701.0★
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$482.644.4★
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$50.090.0★
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$21.745.0★
What buyers say about stenner pump parts
What buyers praise and complain about, mined from review topics.What buyers love
“This purchase was worth every dollar”
“Well made products”
“Works as advertised”
“It fit good”
“they still look brand new”
“Got these to replace the old one on our water system installed very easy”
“Reliable Injector Pump”
What buyers complain about
“The quality of these Stenner pump tubes are horrible”
“Bad deal- they break”
“Overpriced for What It Is”
“had to modify the injector to stop leaking”
“bad advertising”
“They had to replace a couple of parts”
“stretches and is not usable in a stenner at all”
“The quality of these Stenner pump tubes are horrible”
“part is very fragile”
“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
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.