s100 engine brightener
Worth a lookShows low returns (0.1%), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Avg price
Incredible$30.91avg listing price — sweet spot $15–$100
Growth
Great+86.7%90-day search growth — must beat 0% to launch
Conversion
Good6.9%search→purchase rate — share of searches ending in a sale
Price range
Good$11.39–$126.11cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good1,195.56avg incumbent reviews — the moat a new listing must climb
Competition
Okay69%top-5 click share — leaders hold, buyers still browse
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Market size
Bad$52K$52K/yr · 24K searches
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, s100 engine brightener is a $52K/yr Amazon United States market (24K searches/yr). The top 5 brands hold 100% of demand. Verdict: Worth a look — 50/100.
Data updated Jul 8, 2026 · scored weekly · How we score niches
s100 engine brightener market data
- Units sold / yr
- 2K–3K
- avg 100–250/product
- Revenue / yr
- $62K–$77K
- units × avg price
- Conversion rate
- 6.9%
- Avg BSR
- #238
- Page quality
- 0%
- Prime
- 69%
- Sponsored
- 25%
- Out of stock
- 1.1%
- Avg brand age
- 99 months
- Avg seller age
- 174 days
Competition & brand share
The top 5 products take 69% of clicks — established leaders, but buyers still shop beyond them.Brands
5 rising
Sellers
43
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
69%
Top 20: 100%
Open market
0%
- S S10052%
- Pig Spit26%
- Dr. Wack17%
- Bike Brite4%
- Slick Products1%
Demand
Weekly Amazon search volume, last 10 weeks — +86.7% search growth over the last 90 days.Top s100 engine brightener search terms
- s100 engine brightener14K/yr
- harley davidson engine brightener4K/yr
- harley engine brightener3K/yr
- engine brightener3K/yr
Top s100 engine brightener 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 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
S100 Motorcycle Engine Brightener
S S100$16.734.7★164 rev
PIG SPIT Original | Shine for Engines Trim Tires & Vinyl | Restores Faded Black Plastic | 9 oz. | 2-Pack
Pig Spit$29.834.8★1,061 rev
S100 19200A Engine Brightener Aerosol - 4.5 oz red blue
Dr. Wack$13.384.7★1,919 rev
S100 19200A-02 Engine Brightener Aerosol - 4.5 oz. 2-Pack
S S100$25.644.8★421 rev
S100 19200A-04 Engine Brightener Aerosol - 4.5 oz. 4-Pack
S S100$47.194.8★421 rev
Newest
by launch date
Pig Spit Original Automotive Cleaner & Detailer - Multi-Surface Shine for Engines Trim Tires Vinyl & Plastic - 9 oz
Pig Spit$19.20269 rev
S100 19200A-02 Engine Brightener Aerosol - 4.5 oz. 2-Pack
S S100$25.64421 rev
S100 19200A-04 Engine Brightener Aerosol - 4.5 oz. 4-Pack
S S100$47.19421 rev
S100 12600A-02 Total Cycle Cleaner Aerosol - 21 oz. 2-Pack
S S100$30.071,106 rev
S100 19200A-03 Engine Brightener Aerosol - 4.5 oz. 3-Pack
S S100$37.04421 rev
Trending
90-day click momentumS100 12600A-02 Total Cycle Cleaner Aerosol - 21 oz. 2-Pack
S S100$30.074.6★
Slick Products Shine & Protectant Spray 17.35 FL OZ. - High Gloss Clear Coating Renew Vinyl Plastic Rubber Trim Tire Engine Car Truck Motorcycle Dirt Bike
Slick Products$14.524.7★
S100 19200A-04 Engine Brightener Aerosol - 4.5 oz. 4-Pack
S S100$47.194.8★
Pig Spit Original Automotive Cleaner & Detailer - Multi-Surface Shine for Engines Trim Tires Vinyl & Plastic - 9 oz
Pig Spit$19.204.8★
S100 19200A-12PK-12PK Engine Brightener Aerosol - 54 fl. oz. (Pack of 12)
Dr. Wack$126.114.4★
What buyers say about s100 engine brightener
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent product”
“Cleans fairly good without scrubbing”
“Works as advertised”
“Well it worked very well on her 2023 Harley”
“My pickup looks brand new”
“Easy to use”
“While it provides a high-gloss look”
“easy to spray on and rinse off”
“The black engine paint on my Fatboy was in good shape”
“Its not so expensive that I wont buy it again, however”
What buyers complain about
“their prices are just getting insane”
“Bad spray nozzle”
“Don't buy this unless you plan to wipe down EVERYTHING you sprayed it on”
“nothing else in the market that will brighten up your dull black metals motors etc”
“I ordered with spray attachment it was not included with the purchase”
“The scent is not strong, no residue, from what I hear him tell others”
“Doesn't work at all”
“Turned that older greying engine paint back to black”
“Its a small can”
“Spray nozzle would clog every 5 seconds of spraying and would have to be taken off and sprayed out”
Top return reasons
Common questions
- Is s100 engine brightener profitable to sell on Amazon United States?
- The niche generates $52K/yr across 16 tracked products. 90-day search growth is +86.7%. Flapen's verdict: Worth a look (50/100).
- How competitive is the s100 engine brightener niche?
- 5 brands and 43 sellers compete. The top 5 products take 69% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in s100 engine brightener?
- Top complaints mined from reviews: Value For Money, Spray/Flow, Ease Of Cleaning. The return rate is 0.1%.
- What does it cost to enter the s100 engine brightener niche?
- Listings span $11.39–$126.11; the average listing price is $30.91 (sweet spot $15–$100). The average incumbent carries 1,196 reviews — the moat a new listing must climb.