---
title: "transmission cooler lines — Niche Verdict: Worth a look (52/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/transmission-cooler-lines"
last_updated: "2026-07-14T02:48:27.803Z"
locale: en
meta:
  description: "transmission cooler lines shows a sweet-spot price point ($56.32 avg), but soft demand (-18.3% this quarter) keeps it on the watch list."
  "og:description": "transmission cooler lines shows a sweet-spot price point ($56.32 avg), but soft demand (-18.3% this quarter) keeps it on the watch list."
  "og:title": "transmission cooler lines — Niche Verdict: Worth a look (52/100) | Amazon United States - Flapen"
---

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# **transmission cooler lines**

**Worth a look**

Shows a sweet-spot price point ($56.32 avg), but soft demand (-18.3% this quarter) keeps it on the watch list.

Market size 52Growth 16Conversion 20Competition 75Returns 56Price range 66Avg price 91Brand share 45Review moat 85Quality gap 62

**Avg price**

**Great****$56.32**

avg listing price — sweet spot $15–$100

**Review moat**

**Great****308.92**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Great****40%**

top-5 click share — an open shelf

**Price range**

**Good****$10.42–$139.19**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Returns**

**Good****2.8%**

return rate — above 6% kills the launch gate

**Market size**

**Good****$326K**

$326K/yr · 366K searches

**Brand share**

**Okay****78%**

top-5 brand share — brands hold most of the demand

**Conversion**

**Bad****1.6%**

search→purchase rate — share of searches ending in a sale

**Growth**

**Bad****-18.3%**

90-day search growth — must beat 0% to launch

## **Competition**

Clicks spread well past the top 5 (40% combined) — an open shelf where new products get seen.

**Brands**

**19 **▼falling

**Sellers**

**92**

**Top-5 brand share**

**78%**

**Open market**

**18%**

- Dorman25% - EVIL ENERGY18% - Generic16% - GM GENUINE PARTS11% - A-Premium8% - Four Seasons4%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%4%$13K8%$26K12%$39K16%$52K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 48 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![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](https://m.media-amazon.com/images/I/41BWIRnLF8L.jpg)**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**$28.49**4.5★761 rev](https://www.amazon.com/dp/B0BKPWN6N5) [2![EVIL ENERGY 6AN Fuel Line Kit Transmission Cooler Line Kit for 4L60E 4L65E AN6 Nylon Braided Fuel Line Hose Fitting Kit CPE 15FT](https://m.media-amazon.com/images/I/51JhmgyIxuL.jpg)**EVIL ENERGY 6AN Fuel Line Kit Transmission Cooler Line Kit for 4L60E 4L65E AN6 Nylon Braided Fuel Line Hose Fitting Kit CPE 15FT**EVIL ENERGY**$54.73**4.7★117 rev](https://www.amazon.com/dp/B0D83KM6H3) [3![Dorman 624-284 Automatic Transmission Oil Cooler Hose Assembly Compatible with Select Chrysler/Dodge/Ram Models](https://m.media-amazon.com/images/I/31ssQhI3jUL.jpg)**Dorman 624-284 Automatic Transmission Oil Cooler Hose Assembly Compatible with Select Chrysler/Dodge/Ram Models**Dorman**$45.20**4.6★697 rev](https://www.amazon.com/dp/B07CZ53TJ1) [4![EVIL ENERGY 3/8 Transmission Oil Cooler Hose 5FT 250PSI SAE J1532](https://m.media-amazon.com/images/I/31hVanAt-ML.jpg)**EVIL ENERGY 3/8 Transmission Oil Cooler Hose 5FT 250PSI SAE J1532**EVIL ENERGY**$19.72**4.6★693 rev](https://www.amazon.com/dp/B0BGBL4R2R) [5![Automatic Transmission Oil Cooler Hose 53015](https://m.media-amazon.com/images/I/41zaDkh3URL.jpg)**Automatic Transmission Oil Cooler Hose 53015**Four Seasons**$16.75**4.6★689 rev](https://www.amazon.com/dp/B000E0QY2Y)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Engine Oil Cooler Hose Assembly Compatible with Chevrolet Silverado For GMC Sierra YUKON replace # 84828848 625-209 625209 5801032 20828695](https://m.media-amazon.com/images/I/31DWLiv4TfL.jpg)**Engine Oil Cooler Hose Assembly Compatible with Chevrolet Silverado For GMC Sierra YUKON replace # 84828848 625-209 625209 5801032 20828695**MYFANDOOR**$59.48**3 rev7mo ago](https://www.amazon.com/dp/B0G6KT7CPB) [![Dorman 724-048 Automatic Transmission Oil Cooler Hose Assembly Compatible with Select Chrysler/Dodge Models](https://m.media-amazon.com/images/I/31kEeV75ZIL.jpg)**Dorman 724-048 Automatic Transmission Oil Cooler Hose Assembly Compatible with Select Chrysler/Dodge Models**Dorman**$91.55**1 rev8mo ago](https://www.amazon.com/dp/B0FXJ18PCK) [![EVIL ENERGY 6AN PTFE Fuel Line Kit 52 Transmission Fluid Oil Cooler Hose Line kit 4.3FT for 4L60 4L60E 4L65E AN6 Stainless Steel Braided PTFE Fuel Hose Kit for 4L80E TH350 TH400 700R4 Ford C6](https://m.media-amazon.com/images/I/51bPFTzlBqL.jpg)**EVIL ENERGY 6AN PTFE Fuel Line Kit 52 Transmission Fluid Oil Cooler Hose Line kit 4.3FT for 4L60 4L60E 4L65E AN6 Stainless Steel Braided PTFE Fuel Hose Kit for 4L80E TH350 TH400 700R4 Ford C6**EVIL ENERGY**$51.99**7 rev9mo ago](https://www.amazon.com/dp/B0FW4NG59Y) [![Dorman 724-029 Transmission Oil Cooler Pressure and Return Line Compatible with Select Dodge Models Universal Fit](https://m.media-amazon.com/images/I/21hV9vNDVrL.jpg)**Dorman 724-029 Transmission Oil Cooler Pressure and Return Line Compatible with Select Dodge Models Universal Fit**Dorman**$139.19**1 rev9mo ago](https://www.amazon.com/dp/B0FSPSBCXS) [![GM Genuine Parts 85724972 Engine Oil Cooler Hose](https://m.media-amazon.com/images/I/21Ut-B0MAYL.jpg)**GM Genuine Parts 85724972 Engine Oil Cooler Hose**GM GENUINE PARTS**$119.89**17 rev11mo ago](https://www.amazon.com/dp/B0FJ8YCNSB)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Dorman 724-029 Transmission Oil Cooler Pressure and Return Line Compatible with Select Dodge Models Universal Fit](https://m.media-amazon.com/images/I/21hV9vNDVrL.jpg)**Dorman 724-029 Transmission Oil Cooler Pressure and Return Line Compatible with Select Dodge Models Universal Fit**Dorman**$139.19**5.0★**▲ 262%**](https://www.amazon.com/dp/B0FSPSBCXS) [![GM Genuine Parts 84791853 Engine Oil Cooler Hose](https://m.media-amazon.com/images/I/31pRx0lA8QL.jpg)**GM Genuine Parts 84791853 Engine Oil Cooler Hose**GM GENUINE PARTS**$85.98**4.5★**▲ 178%**](https://www.amazon.com/dp/B0BJBSJHZ3) [![6AN 52 Transmission Fluid Oil Cooler Hose Line kit for GM Chevy Ford GMC Buick Cadillac Cars and Trucks Stainless Steel Braided PTFE Hose](https://m.media-amazon.com/images/I/517d4S5RjgL.jpg)**6AN 52 Transmission Fluid Oil Cooler Hose Line kit for GM Chevy Ford GMC Buick Cadillac Cars and Trucks Stainless Steel Braided PTFE Hose**Generic**$28.28**4.5★**▲ 121%**](https://www.amazon.com/dp/B0BKPXDQRP) [![GM Genuine Parts 15809053 Automatic Transmission Auxiliary Fluid Cooler Upper Line](https://m.media-amazon.com/images/I/111VumM3JsL.jpg)**GM Genuine Parts 15809053 Automatic Transmission Auxiliary Fluid Cooler Upper Line**GM GENUINE PARTS**$39.20**4.6★**▲ 115%**](https://www.amazon.com/dp/B0016IT9HU) [![Engine Oil Cooler Hose Assembly Compatible with Chevrolet Silverado For GMC Sierra YUKON replace # 84828848 625-209 625209 5801032 20828695](https://m.media-amazon.com/images/I/31DWLiv4TfL.jpg)**Engine Oil Cooler Hose Assembly Compatible with Chevrolet Silverado For GMC Sierra YUKON replace # 84828848 625-209 625209 5801032 20828695**MYFANDOOR**$59.48**2.5★**▲ 106%**](https://www.amazon.com/dp/B0G6KT7CPB)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 104 weeks — -18.3% search growth over the last 90 days.

9K7KSpike '25 seasonSepDecMarJunAugNovMarMay

Peak months: Mar · busiest ÷ quietest = 1.6×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Quality-Overall**27%

*“Excellent product”*

**Size-Overall**17%

*“Fit great”*

**Advertised Vs Actual Product**10%

*“exactly what I needed”*

**Value For Money**10%

*“Great value for the money”*

**Efficiency**6%

*“Worked like they were supposed to”*

**Assembly/Installation**5%

*“Easy to assemble as well”*

**Leak-Proof**3%

*“They work great and dont leak and where pretty easy to install and I think it had more power and it definitely shifted better”*

**Fuel Efficiency**3%

*“good cheap fuel line”*

**Durability**3%

*“They are very durable”*

**Ease Of Use**1%

*“Simple to replace”*

### **What buyers complain about **

**Size-Overall**25%

*“Didn't fit”*

**Leak-Proof**18%

*“Leaking everywhere”*

**Quality-Overall**8%

*“Bad quality”*

**Assembly/Installation**4%

*“Broke instantly after install”*

**Advertised Vs Actual Product**4%

*“False advertising not -6AN size”*

**Durability**4%

*“Split apart after 100 miles of use in my vehicle”*

**Compatibility-Overall**3%

*“Won't fit 5.4V 3V”*

**Material Quality**3%

*“Cheap material”*

**Thickness**2%

*“they didnt snap into the tranny bc they were too thick”*

**Value For Money**2%

*“Cost me a couple grand for a transmission because the hose rated for transmission fluid blew out”*

### **Top return reasons **

**Size-Overall**58%

**Compatibility-Overall**13%

**Defective Material/Parts**5%

**Advertised Vs Actual Product**5%

**Leak-Proof**3%

**Value For Money**2%

**Quality-Overall**2%

**Functionality-Overall**2%

**Assembly/Installation**2%

**Connectivity-Overall**1%