5/8 fuel hose
Skip itBrand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible14.7%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$25.52avg listing price — sweet spot $15–$100
Price range
Great$12.98–$51.66cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Okay1,745avg incumbent reviews — the moat a new listing must climb
Returns
Okay3.3%return rate — above 5% kills the launch gate
Growth
Okay+15.5%90-day search growth — must beat 0% to launch
Market size
Okay$112K$112K/yr · 30K searches
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Competition
Bad78%top-5 click share — a locked-up shelf
Brand share
Bad98%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, 5/8 fuel hose is a $112K/yr Amazon United States market (30K searches/yr). The top 5 brands hold 98% of demand. Demand peaks in Mar. Verdict: Skip it — 42/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
5/8 fuel hose market data
- Units sold / yr
- 3K–4K
- avg 250–500/product
- Revenue / yr
- $77K–$102K
- units × avg price
- Conversion rate
- 14.7%
- Avg BSR
- #41
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 67%
- Out of stock
- 10.0%
- Avg brand age
- 50 months
- Avg seller age
- 204 days
Competition & brand share
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.Brands
6 falling
Sellers
10
Top-5 brand share
98%
Top 20: 100%
Top-5 click share
78%
Top 20: 100%
Open market
0%
- EVIL ENERGY35%
- ALLWIN34%
- Ucreative16%
- dojobkinb8%
- Eunice6%
- STEBER2%
Demand & seasonality
Weekly Amazon search volume, last 65 weeks — +15.5% search growth over the last 90 days.Peak months: Mar · busiest ÷ quietest = 1.6×
Top 5/8 fuel hose search terms
- 5/8 fuel hose14K/yr
- 5/8 fuel line9K/yr
- 5/8 oil hose4K/yr
- 5/8 pcv hose3K/yr
Top 5/8 fuel hose 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 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
5/8 Inch ID Fuel Line Hose - 10FT Marine Grade Fuel Line with 10PCS Hose Clamps 300PSI High-Pressure Fuel Line for Automotive Fuel Systems Engines (5/8 ID-10Ft)
ALLWIN$18.444.5★700 rev
Ucreative 5/8 Inch x 5FT Fuel Line Hose Push Lock Fuel Hose Rubber NBR SAE 30R7 300PSI
Ucreative$13.984.6★448 rev
EVIL ENERGY 5/8 Fuel Hose Line Push Lock NBR Rubber SAE 30R7 10FT 150PSI
EVIL ENERGY$30.904.8★2,325 rev
EVIL ENERGY 5/8 Fuel Hose Line Push Lock NBR Rubber SAE 30R7 5FT 150PSI
EVIL ENERGY$22.844.7★704 rev
5/8 Inch ID Fuel Line Hose - 5FT Marine Grade Fuel Line with 10PCS Hose Clamps 300PSI High-Pressure Fuel Line for Automotive Fuel Systems Engines
ALLWIN$12.984.5★700 rev
Newest
by launch date5/8 Inch ID Fuel Line Hose - 5FT Marine Grade Fuel Line with 10PCS Hose Clamps 300PSI High-Pressure Fuel Line for Automotive Fuel Systems Engines
ALLWIN$12.98700 rev
EVIL ENERGY 5/8 Transmission Oil Cooler Hose 10FT 150PSI SAE J1532
EVIL ENERGY$38.58693 rev
5/8 Inch ID Fuel Line Hose - 10FT Marine Grade Fuel Line with 10PCS Hose Clamps 300PSI High-Pressure Fuel Line for Automotive Fuel Systems Engines (5/8 ID-10Ft)
ALLWIN$18.44700 rev
EVIL ENERGY 5/8 Fuel Hose Line Push Lock SAE 30R7 NBR 20FT 150PSI
EVIL ENERGY$48.88228 rev
Ucreative 5/8 Inch x 5FT Fuel Line Hose Push Lock Fuel Hose Rubber NBR SAE 30R7 300PSI
Ucreative$13.98448 rev
Trending
90-day click momentum5/8 Inch ID Fuel Line Hose - 5FT Marine Grade Fuel Line with 10PCS Hose Clamps 300PSI High-Pressure Fuel Line for Automotive Fuel Systems Engines
ALLWIN$12.984.5★
5/8 Inch (16mm) ID Fuel Line Hose 10 FT 304PSI Push Lock NBR Rubber Hose for Automotive
Eunice$15.024.6★
5/8 Inch (16mm) ID Fuel Line Hose 10FT NBR Rubber Push Lock Hose High Pressure 300PSI for Automotive Fuel Systems Engines
dojobkinb$21.214.6★
Fuel Line 5/8 ID NBR Hose 10 AN Push on Hose 0.9 OD for Small Engines Fuel Systems E85 E10 Coolants Oil Air Methanol and Lubricant 300 PSI 3 feet
STEBER$15.684.6★
EVIL ENERGY 5/8 Fuel Hose Line Push Lock SAE 30R7 NBR 20FT 150PSI
EVIL ENERGY$48.884.8★
What buyers say about 5/8 fuel hose
What buyers praise and complain about, mined from review topics.What buyers love
“High quality hose for a decent price”
“decent price make is a good purchase for me”
“Fuel Hose seems to be decent quality although time will tell”
“It Fit”
“Worked great for very low-pressure applications”
“Works as expected”
“Well made perfect for hooking up external transportation filters”
“Works for me”
“It doesn't collapse under suction and easily clamps to a hose bib and doesn't leak”
“Should last another 70 years”
What buyers complain about
“Durability unknown”
“This is NOT USCG approved for any use in your marine engine or fuel vent hose”
“One thing that was disappointing was there was no documentation printed on the hose”
“had finally rotted enough to leak gasoline when the tank was filled”
“More length than I really needed”
Top return reasons
Common questions
- Is 5/8 fuel hose profitable to sell on Amazon United States?
- The niche generates $112K/yr across 12 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +15.5%. Flapen's verdict: Skip it (42/100).
- How competitive is the 5/8 fuel hose niche?
- 6 brands and 10 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 98% of demand.
- What do buyers complain about in 5/8 fuel hose?
- Top complaints mined from reviews: Durability, Certifications, Instructions/User Manual/Troubleshooting. The return rate is 3.3%.
- When does demand for 5/8 fuel hose peak?
- Demand peaks in Mar; the busiest month runs 1.6× the quietest.
- What does it cost to enter the 5/8 fuel hose niche?
- Listings span $12.98–$51.66; the average listing price is $25.52 (sweet spot $15–$100). The average incumbent carries 1,745 reviews — the moat a new listing must climb.