stern saver
Worth a lookShows a sweet-spot price point ($27.93 avg), but brand-locked demand (top 5 brands take 97% of clicks) keeps it on the watch list.
Avg price
Incredible$27.93avg listing price — sweet spot $15–$100
Price range
Incredible$15.48–$44.75cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great207.76avg incumbent reviews — the moat a new listing must climb
Growth
Great+87.4%90-day search growth — must beat 0% to launch
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Returns
Good2.9%return rate — above 5% kills the launch gate
Conversion
Good4.1%search→purchase rate — share of searches ending in a sale
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Market size
Bad$43K$43K/yr · 37K searches
Brand share
Bad97%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, stern saver is a $43K/yr Amazon United States market (37K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Mar–Apr–May–Jun–Jul. Verdict: Worth a look — 54/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
stern saver market data
- Units sold / yr
- 1K–2K
- avg 0–100/product
- Revenue / yr
- $35K–$42K
- units × avg price
- Conversion rate
- 4.1%
- Avg BSR
- #563
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 76%
- Out of stock
- 19.2%
- Avg brand age
- 41 months
- Avg seller age
- 180 days
Competition & brand share
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.Brands
7 flat
Sellers
8
Top-5 brand share
97%
Top 20: 100%
Top-5 click share
59%
Top 20: 100%
Open market
1%
- WFCYX51%
- SEAWORTHY INNOVATIONS28%
- Saillong11%
- dressuxy3%
- Plug Pads3%
- Ahuliao2%
- Open — no brand owns it (1 brand, 1%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +87.4% search growth over the last 90 days.Peak months: Mar, Apr, May, Jun, Jul · busiest ÷ quietest = 3.7×
Top stern saver search terms
- stern saver transducer mount11K/yr
- stern saver10K/yr
- stern pad7K/yr
- stern pad transducer mount6K/yr
- transom pad3K/yr
Top stern saver 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 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Transducer Mounting Plate Marine-Grade Mounting Board (64.5x3.5x 0.75)
WFCYX$15.483.6★173 rev
Transducer Mounting Plate Marine-Grade Mounting Boar (6.5x4.75x0.87)
WFCYX$16.013.6★173 rev
Transducer Mounting Plate Marine-Grade Mounting Board (6.5x4.75x0.87)
WFCYX$16.173.6★173 rev
SEAWORTHY INNOVATIONS Stern Pad - Standard Size - Black - Screwless Transducer/Acc. Mounting Kit (not for Large 3D Scan Transducers)
SEAWORTHY INNOVATIONS$34.744.6★919 rev
Saillong Transducer Mounting Plate Kit 25mm Transducer Pad with Adhesive Adhesive Mounting with Scouring Pads Cleaning Wipes No Drill Sensor Mount(Black 4.3 x 3.5 Inch)
Saillong$19.524.4★127 rev
Newest
by launch dateStern Pad by SEAWORTHY INNOVATIONS - Regular Size - Black - Made in the USA - Screwless Transducer/Acc. Mounting Kit for Large 3D scanning Transducers - Featuring Genuine 3M VHB Adhesive
SEAWORTHY INNOVATIONS$34.8916 rev
Stern Pad by SEAWORTHY INNOVATIONS - Large Size - Black - Made in the USA - Screwless Transducer/Acc. Mounting Kit for Large 3D scanning Transducers - Featuring Genuine 3M VHB Adhesive
SEAWORTHY INNOVATIONS$44.7516 rev
Stern Pad by SEAWORTHY INNOVATIONS - Large Size - White - Made in the USA - Screwless Transducer/Acc. Mounting Kit for Large 3D scanning Transducers - Featuring Genuine 3M VHB Adhesive
SEAWORTHY INNOVATIONS$44.1416 rev
Stern Pad by SEAWORTHY INNOVATIONS - Regular Size - White - Made in the USA - Screwless Transducer/Acc. Mounting Kit for Large 3D scanning Transducers - Featuring Genuine 3M VHB Adhesive
SEAWORTHY INNOVATIONS$34.7116 rev
Sibavexon 2 Pack Boat Transducer Mounting Boards Black 4.5x3.5x0.75 in
Sibavexon$22.161 rev
Trending
90-day click momentumStern Pad by SEAWORTHY INNOVATIONS - Regular Size - White - Made in the USA - Screwless Transducer/Acc. Mounting Kit for Large 3D scanning Transducers - Featuring Genuine 3M VHB Adhesive
SEAWORTHY INNOVATIONS$34.714.2★
Stern Pad by SEAWORTHY INNOVATIONS - Large Size - White - Made in the USA - Screwless Transducer/Acc. Mounting Kit for Large 3D scanning Transducers - Featuring Genuine 3M VHB Adhesive
SEAWORTHY INNOVATIONS$44.144.2★
Stern Pad by SEAWORTHY INNOVATIONS - Large Size - Black - Made in the USA - Screwless Transducer/Acc. Mounting Kit for Large 3D scanning Transducers - Featuring Genuine 3M VHB Adhesive
SEAWORTHY INNOVATIONS$44.754.2★
Stern Pad by SEAWORTHY INNOVATIONS - Regular Size - Black - Made in the USA - Screwless Transducer/Acc. Mounting Kit for Large 3D scanning Transducers - Featuring Genuine 3M VHB Adhesive
SEAWORTHY INNOVATIONS$34.894.2★
Sibavexon 2 Pack Boat Transducer Mounting Boards Black 4.5x3.5x0.75 in
Sibavexon$22.165.0★
What buyers say about stern saver
What buyers praise and complain about, mined from review topics.What buyers love
“nice kit”
“Works as Advertised”
“it is doing very well”
“The quality of the materials is noticeably good for the price point”
“Easy to install”
“A Well-Built Transducer Mounting Plate That Gets the Job Done at a Fair Price”
“Easy to Use”
“The double side sticky tape held well to the transome”
“Never had an issue with it falling off”
“Built well and heavy, beats drilling holes in the boat”
What buyers complain about
“they pulled out”
“adhesive did not hold”
“the board material is crap”
“Product is trash”
“This cost me $400.00”
“Dont waste your time installing this”
“scratches on my boat from the prep”
“Would have hated to hit 50mph on the water to see the transducer flopping all around”
“Don't really think it's a jumbo size”
“Possibly did not clean correctly properly”
Top return reasons
Common questions
- Is stern saver profitable to sell on Amazon United States?
- The niche generates $43K/yr across 17 tracked products. 0 of 5 products launched in the last 360 days are still selling. 90-day search growth is +87.4%. Flapen's verdict: Worth a look (54/100).
- How competitive is the stern saver niche?
- 7 brands and 8 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 97% of demand.
- What do buyers complain about in stern saver?
- Top complaints mined from reviews: Durability, Adhesion/Stickiness, Material Quality. The return rate is 2.9%.
- When does demand for stern saver peak?
- Demand peaks in Mar–Apr–May–Jun–Jul; the busiest month runs 3.7× the quietest.
- What does it cost to enter the stern saver niche?
- Listings span $15.48–$44.75; the average listing price is $27.93 (sweet spot $15–$100). The average incumbent carries 208 reviews — the moat a new listing must climb.