coolant pipe
Skip itA small market ($29K/yr) — this niche doesn't clear our bar today.
Brand share
Great40%top-5 brand share — no brand owns this niche
Avg price
Great$20.18avg listing price — sweet spot $15–$100
Price range
Great$6.18–$90.49cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great270.35avg incumbent reviews — the moat a new listing must climb
Competition
Great35%top-5 click share — an open shelf
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Returns
Okay4.5%return rate — above 5% kills the launch gate
Conversion
Bad1.8%search→purchase rate — share of searches ending in a sale
Growth
Bad-16.3%90-day search growth — must beat 0% to launch
Market size
Bad$29K$29K/yr · 82K searches
According to Flapen's Amazon United States niche tracking, coolant pipe is a $29K/yr Amazon United States market (82K searches/yr). The top 5 brands hold 40% of demand. Verdict: Skip it — 48/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
coolant pipe market data
- Units sold / yr
- 2K–3K
- avg 0–100/product
- Revenue / yr
- $40K–$50K
- units × avg price
- Conversion rate
- 1.8%
- Avg BSR
- #665
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 60%
- Out of stock
- 4.4%
- Avg brand age
- 37 months
- Avg seller age
- 188 days
Competition & brand share
Clicks spread well past the top 5 (35% combined) — an open shelf where new products get seen.Brands
41 rising
Sellers
97
Top-5 brand share
40%
Top 20: 83%
Top-5 click share
35%
Top 20: 65%
Open market
55%
- AUCELI12%
- TNAIYH8%
- Gates7%
- Dorman7%
- EVIL ENERGY7%
- HEVLE5%
Demand
Weekly Amazon search volume, last 10 weeks — -16.3% search growth over the last 90 days.Top coolant pipe search terms
- coolant pipe18K/yr
- coolant overflow hose11K/yr
- coolant bypass hose11K/yr
- coolant reservoir tank hose9K/yr
- coolant line8K/yr
- bypass hose5K/yr
- thermostat hose5K/yr
- coolant lines6K/yr
- reservoir hose5K/yr
- overflow hose3K/yr
Top coolant pipe 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
AUCELI Car Coolant Hose Automotive Professional Radiator Hose for Engine Coolant Recovery Tank High Performance Replacement OEM#13251447 13408385 Universal for SUV Truck RV and More
AUCELI$9.844.1★77 rev
TNAIYH Car Engine Radiator Coolant Hose OEM#13251447 Vehicle Upper Inlet Coolant Recovery Tank Hoses Automotive Bypass Hose Replacement Radiator Compatible with 2012-2020 Sonic 1.4L
TNAIYH$6.774.6★3 rev
HEVLE Car Radiator Coolant Hose Engine Coolant Recovery Tank Upper Inlet Coolant Bypass Hose Compatible with Most Vehicles Replaces OEM#13251447 13408385
HEVLE$10.924.1★134 rev
Rebvugr Radiator Coolant Hose Coolant Reservoir Hose Car Reservoir Bypass Tank Pipe Compatible with Chevy Buick Automotive Acessories Radiator Upper Inlet Line Replaces OEM# 13251447 13408385
Rebvugr$9.733.3★10 rev
EVIL ENERGY 5/16 Silicone Heater Hose Radiator Coolant Hose Straight SAE J20R3 CLASS-A 60PSI 5FT Black
EVIL ENERGY$13.504.6★450 rev
Newest
by launch date
Sandfren Car Radiator Coolant Hose OEM# 13251447 13408385 Rubber Vehicle Inlet Coolant Bypass Pipe Automotive Engine Bypass Hoses Replacement Compatible with Cruze Trax Sonic
Sandfren$6.902 rev
SWQS Engine Coolant Radiator Inlet Hose Upper Radiator Coolant Reservoir Water Tank Overflow Hose Replacement Engine Bypass Hoses for 2011-2016 Chevrolet Chevy Cruze GM Sonic 13251447 13408385
SWQS$9.9510 rev
5Ft ID 1/4 Heater Hose Silicone Radiator Hose with 650PSI Rupture Pressure for Water/Gas Transportation Professional Car Accessories Coolant Hoses for Vehicle Cooling Systems
YGDMD$12.91160 rev
TNAIYH Car Engine Radiator Coolant Hose OEM#13251447 Vehicle Upper Inlet Coolant Recovery Tank Hoses Automotive Bypass Hose Replacement Radiator Compatible with 2012-2020 Sonic 1.4L
TNAIYH$6.773 rev
yorpyep Car Hose with Clamp Heater Core Crossover Coolant Bypass Hose Kit Sealing Flexible Replacement OEM# 551699 Compatible with LS1 LSX LS2 LS3 LQ4 LQ9 Engines (Black)
yorpyep$12.191 rev
Trending
90-day click momentumSandfren Car Radiator Coolant Hose OEM# 13251447 13408385 Rubber Vehicle Inlet Coolant Bypass Pipe Automotive Engine Bypass Hoses Replacement Compatible with Cruze Trax Sonic
Sandfren$6.905.0★
TNAIYH Car Engine Radiator Coolant Hose OEM#13251447 Vehicle Upper Inlet Coolant Recovery Tank Hoses Automotive Bypass Hose Replacement Radiator Compatible with 2012-2020 Sonic 1.4L
TNAIYH$6.774.6★
5Ft ID 1/4 Heater Hose Silicone Radiator Hose with 650PSI Rupture Pressure for Water/Gas Transportation Professional Car Accessories Coolant Hoses for Vehicle Cooling Systems
YGDMD$12.914.6★
Gates 20338 Molded Coolant Hose
Gates$7.954.5★
yorpyep Car Hose with Clamp Heater Core Crossover Coolant Bypass Hose Kit Sealing Flexible Replacement OEM# 551699 Compatible with LS1 LSX LS2 LS3 LQ4 LQ9 Engines (Black)
yorpyep$12.194.0★
What buyers say about coolant pipe
What buyers praise and complain about, mined from review topics.What buyers love
“Fit perfect”
“Good quality”
“Worth the price”
“Worked as advertised”
“Doesn't leak”
“Works well”
“Installation is straightforward”
“Good material quality – Feels durable and heat-resistant; not flimsy like some cheap hoses”
“No more coolant leaks”
“Appears to be durable and well made”
What buyers complain about
“Incompatible”
“Didnt fit my car”
“Broke within 30min of driving”
“Leaks”
“We were having issues with our coolant system”
“If o-ring is too thick just swap for a thinner one”
“Junk”
“You will be left with no heat”
“I did use it so thats the reason why I didn't return it, however the information is misleading and inaccurate”
“not all soft”
Top return reasons
Common questions
- Is coolant pipe profitable to sell on Amazon United States?
- The niche generates $29K/yr across 63 tracked products. 0 of 15 products launched in the last 360 days are still selling. 90-day search growth is -16.3%. Flapen's verdict: Skip it (48/100).
- How competitive is the coolant pipe niche?
- 41 brands and 97 sellers compete. The top 5 products take 35% of clicks and top 5 brands hold 40% of demand.
- What do buyers complain about in coolant pipe?
- Top complaints mined from reviews: Compatibility-Overall, Size-Overall, Durability. The return rate is 4.5%.
- What does it cost to enter the coolant pipe niche?
- Listings span $6.18–$90.49; the average listing price is $20.18 (sweet spot $15–$100). The average incumbent carries 270 reviews — the moat a new listing must climb.