oil cooler lines
Skip itSoft demand (-24.1% this quarter) — this niche doesn't clear our bar today.
Avg price
Great$55.92avg listing price — sweet spot $15–$100
Review moat
Great256.28avg incumbent reviews — the moat a new listing must climb
Competition
Good40%top-5 click share — leaders hold, buyers still browse
Price range
Good$5.84–$136.64cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Returns
Good2.8%return rate — above 5% kills the launch gate
Brand share
Good74%top-5 brand share — brands hold most of the demand
Market size
Bad$63K$63K/yr · 89K searches
Conversion
Bad1.3%search→purchase rate — share of searches ending in a sale
Growth
Bad-24.1%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, oil cooler lines is a $63K/yr Amazon United States market (89K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Mar. Verdict: Skip it — 45/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
oil cooler lines market data
- Units sold / yr
- 2K–2K
- avg 0–100/product
- Revenue / yr
- $84K–$112K
- units × avg price
- Conversion rate
- 1.3%
- Avg BSR
- #398
- Page quality
- 0%
- Prime
- 93%
- Sponsored
- 64%
- Out of stock
- 4.7%
- Avg brand age
- 39 months
- Avg seller age
- 191 days
Competition & brand share
The top 5 products take 40% of clicks — established leaders, but buyers still shop beyond them.Brands
23 rising
Sellers
97
Top-5 brand share
74%
Top 20: 98%
Top-5 click share
40%
Top 20: 69%
Open market
21%
- Dorman30%
- GM GENUINE PARTS21%
- A-Premium11%
- MYFANDOOR7%
- Sunsong5%
- NewYall4%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -24.1% search growth over the last 90 days.Peak months: Mar · busiest ÷ quietest = 1.7×
Top oil cooler lines search terms
- oil cooler lines49K/yr
- oil cooler hose13K/yr
- engine oil cooler lines11K/yr
- oil cooler line10K/yr
- oil line5K/yr
Top oil cooler lines 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
Dorman 625-209 Engine Oil Cooler Hose Assembly Compatible with Select Cadillac / Chevrolet / GMC Models
Dorman$64.814.6★190 rev
GM Genuine Parts 85724972 Engine Oil Cooler Hose
GM GENUINE PARTS$119.894.4★17 rev
GM Genuine Parts 84791853 Engine Oil Cooler Hose
GM GENUINE PARTS$85.984.5★58 rev
Engine Oil Cooler Hose Assembly Compatible with Chevrolet Silverado For GMC Sierra YUKON replace # 84828848 625-209 625209 5801032 20828695
MYFANDOOR$59.482.5★3 rev
Dorman 625-168 Engine Oil Cooler Hose Assembly Compatible with Select Cadillac / Chevrolet / GMC Models
Dorman$91.824.4★164 rev
Newest
by launch dateEngine Oil Cooler Hose Assembly Compatible with Chevrolet Silverado For GMC Sierra YUKON replace # 84828848 625-209 625209 5801032 20828695
MYFANDOOR$59.483 rev
GM Genuine Parts 85724972 Engine Oil Cooler Hose
GM GENUINE PARTS$119.8917 rev
NewYall Inlet Outlet Engine Oil Cooler Line Assembly for Escalade/ESV/Suburban 1500/Tahoe/Sierra 1500/Yukon/Yukon XL 1500 07-14 Escalade EXT/Avalanche/Yukon XL 2500 07-13 Silverado 1500 06-14
NewYall$57.1116 rev
MOTOKU Oil Cooler Outlet Hose for Chrysler 200 300 Town & Country for Dodge Challenger Charger Durango Grand Caravan Journey for Jeep Grand Cherokee for Ram ProMaster 1500 2500 3500
MOTOKU$20.9159 rev
6AN 70 Transmission Fluid Oil Cooler Hose Line kit for GM Chevy Transmission 4L80E TH350 TH400 4L60E 700R4 200-4R TR6060 Ford AOD 4R100 4R70W and C5 Stainless Steel Braided PTFE Hose
Generic$28.49761 rev
Trending
90-day click momentumGM Genuine Parts 84791853 Engine Oil Cooler Hose
GM GENUINE PARTS$85.984.5★
Engine Oil Cooler Hose Assembly Compatible with Chevrolet Silverado For GMC Sierra YUKON replace # 84828848 625-209 625209 5801032 20828695
MYFANDOOR$59.482.5★
Sunsong 5801032 Engine Oil Cooler Hose Assembly 2 Pack
Sunsong$78.854.1★
Sunsong 5801274 Engine Oil Cooler Hose Assembly Standard
Sunsong$63.333.6★
Dorman 625-522 Engine Oil Cooler Hose Assembly Compatible with Select Chevrolet / GMC Models
Dorman$50.604.6★
What buyers say about oil cooler lines
What buyers praise and complain about, mined from review topics.What buyers love
“High quality hose”
“Fit well”
“exactly what I needed”
“Great value for the money”
“Worked like they were supposed to”
“Installed without any issues”
“stopped my leaking issue”
“good cheap fuel line”
“Good aftermarket replacement”
“Durability”
What buyers complain about
“Didn't fit”
“the same leak”
“Bad quality”
“Royal pain to install”
“it only lasted a week”
“It carries oil to the cooler”
“Cheap material”
“misleading if advertised for 4l60e”
“they didnt snap into the tranny bc they were too thick”
“Cheap rubber products on the hard lines”
Top return reasons
Common questions
- Is oil cooler lines profitable to sell on Amazon United States?
- The niche generates $63K/yr across 58 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is -24.1%. Flapen's verdict: Skip it (45/100).
- How competitive is the oil cooler lines niche?
- 23 brands and 97 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 74% of demand.
- What do buyers complain about in oil cooler lines?
- Top complaints mined from reviews: Size-Overall, Leak-Proof, Quality-Overall. The return rate is 2.8%.
- When does demand for oil cooler lines peak?
- Demand peaks in Mar; the busiest month runs 1.7× the quietest.
- What does it cost to enter the oil cooler lines niche?
- Listings span $5.84–$136.64; the average listing price is $55.92 (sweet spot $15–$100). The average incumbent carries 256 reviews — the moat a new listing must climb.