--- title: "6an transmission line kit — Niche Verdict: Skip it (43/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/6an-transmission-line-kit" last_updated: "2026-07-09T21:50:16.425Z" locale: en meta: description: "a small market ($48K/yr) — 6an transmission line kit doesn't clear our bar today." "og:description": "a small market ($48K/yr) — 6an transmission line kit doesn't clear our bar today." "og:title": "6an transmission line kit — Niche Verdict: Skip it (43/100) | Amazon United States - Flapen" --- Back to Flapen home # **6an transmission line kit** **Skip it****43/100 ** a small market ($48K/yr) — 6an transmission line kit doesn't clear our bar today. **Market/yr** **$48K** **Growth (1y)** **+298.7%** **Products** **15** **Brands** **10** was 20 a year ago **Sellers** **15** **Price range** **$27.16–$83.02** **Returns** **2.3%** **Rating** **4.5★** **Skip it** Scored 43/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **2** ×0.30 Growth **85** ×0.30 Competition **24** ×0.20 Quality gap **36** ×0.10 Returns **81** ×0.10 ## **Demand** Weekly Amazon search volume, last 10 weeks — +298.7% year over year. 588294May '26May '26May '26May '26May '26Jun '26Jun '26Jun '26Jun '26Jul '26 ## **Competition** - EVIL ENERGY41% - Generic35% - Jecoupoon6% - Aspaton3% - Autoutfit3% - YUXIVCNE3% - Other (4 brands)9% The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack. 10 brands and 15 sellers compete here. **Brands** **10 **▼falling was 20 a year ago **Sellers** **15** **Top 5 brand share** **88%** #ProductBrandPriceRatingReviewsClick shareTrend 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**](https://www.amazon.com/dp/B0BKPWN6N5) Generic$28.494.5★76130%▼falling 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**](https://www.amazon.com/dp/B0D83KM6H3) EVIL ENERGY$54.734.7★11729%▲rising 3 ![Jecoupoon 6AN 70 Transmission Oil Cooler Hose Line kit Compatible with 4L60E 4L80E TH350 TH400 200-4R 700R4 C5 Stainless Steel Braided PTFE Hose TR6060](https://m.media-amazon.com/images/I/417WK6iDB6L.jpg) [**Jecoupoon 6AN 70 Transmission Oil Cooler Hose Line kit Compatible with 4L60E 4L80E TH350 TH400 200-4R 700R4 C5 Stainless Steel Braided PTFE Hose TR6060**](https://www.amazon.com/dp/B0CMTQJZFN) Jecoupoon$27.834.5★1016%▼falling 4 ![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**](https://www.amazon.com/dp/B0BKPXDQRP) Generic$28.284.5★7615%▲rising 5 ![EVIL ENERGY 6AN Fuel Line Kit 6AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black](https://m.media-amazon.com/images/I/51XMBWtJuiL.jpg) [**EVIL ENERGY 6AN Fuel Line Kit 6AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black**](https://www.amazon.com/dp/B081W79ZC1) EVIL ENERGY$65.634.7★1,9054%▼falling 6 ![EVIL ENERGY 6AN Fuel Line Kit 6AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black](https://m.media-amazon.com/images/I/51I1FBOUUNL.jpg) [**EVIL ENERGY 6AN Fuel Line Kit 6AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black**](https://www.amazon.com/dp/B0CQK2X8NZ) EVIL ENERGY$66.684.8★4304%▲rising 7 ![Aspaton 6AN 70 Transmission Fluid Oil Cooler Hose Line kit Compatible with Transmission TR6060 C5 C6 AOD 4L80E TH350 TH400 4L60E 700R4 200-4R](https://m.media-amazon.com/images/I/41aBj7O+ucL.jpg) [**Aspaton 6AN 70 Transmission Fluid Oil Cooler Hose Line kit Compatible with Transmission TR6060 C5 C6 AOD 4L80E TH350 TH400 4L60E 700R4 200-4R**](https://www.amazon.com/dp/B0CMXR8QXW) Aspaton$27.574.5★1043%▲rising 8 ![Autoutfit AN6 15FT Automatic Transmission Cooler Line Kit For 4L60E 4L65E - Black Nylon Braided Hose Kit](https://m.media-amazon.com/images/I/51UrpG4rjmL.jpg) [**Autoutfit AN6 15FT Automatic Transmission Cooler Line Kit For 4L60E 4L65E - Black Nylon Braided Hose Kit**](https://www.amazon.com/dp/B0BV2D5HBM) Autoutfit$37.054.3★1513%▼falling 9 ![6AN transmission cooler lines Compatible with 4L60 700R4 TH350 TH400 7 Ft Long Hose Fitting Nylon Stainless Steel Braided Lines 2 X 6AN PTFE](https://m.media-amazon.com/images/I/41cOofEgJBL.jpg) [**6AN transmission cooler lines Compatible with 4L60 700R4 TH350 TH400 7 Ft Long Hose Fitting Nylon Stainless Steel Braided Lines 2 X 6AN PTFE**](https://www.amazon.com/dp/B0B969K7FV) YUXIVCNE$49.554.4★1323%—flat 10 ![Yunnergo 70 Transmission Cooler Lines Kit with 6AN Hose Fitting Compatible with 6AN Transmission 4L80E TH350 TH400 4L60E 700R4 200-4R TR6060 AOD C5](https://m.media-amazon.com/images/I/41iIBGdOBeL.jpg) [**Yunnergo 70 Transmission Cooler Lines Kit with 6AN Hose Fitting Compatible with 6AN Transmission 4L80E TH350 TH400 4L60E 700R4 200-4R TR6060 AOD C5**](https://www.amazon.com/dp/B0CFWPGQXL) Yunnergo$27.604.4★1413%—flat 11 ![6AN SS Braided Transmission Cooler Lines - 70 Compatible with Chevy GM Ford Turbo 4L60E TH350 TH400 700R4 4L65E 4L80E Transmission Line Kit](https://m.media-amazon.com/images/I/51JVDpsScML.jpg) [**6AN SS Braided Transmission Cooler Lines - 70 Compatible with Chevy GM Ford Turbo 4L60E TH350 TH400 700R4 4L65E 4L80E Transmission Line Kit**](https://www.amazon.com/dp/B0DHZQ85D7) CMOOD$35.984.4★583%▼falling 12 ![Assembroverse 70 Inch Flexible SS Braided Transmission Cooler Lines Compatible with 700R4 4L60E 4L80E TR6060 AOD 4R70W 4R100 Transmission Cooling Line with 6AN to 1/4 NPT & 3/8 NPT Adapters](https://m.media-amazon.com/images/I/41N3g1H7azL.jpg) [**Assembroverse 70 Inch Flexible SS Braided Transmission Cooler Lines Compatible with 700R4 4L60E 4L80E TR6060 AOD 4R70W 4R100 Transmission Cooling Line with 6AN to 1/4 NPT & 3/8 NPT Adapters**](https://www.amazon.com/dp/B0CZ6ZGSY3) Assembroverse$27.164.0★302%▲rising 13 ![EVIL ENERGY 6AN PTFE Fuel Line Kit E85 Nylon Braided Fuel Hose 20FT AN6 PTFE Fuel Line Hose(5/16 Inch ID)](https://m.media-amazon.com/images/I/51yOI61tqML.jpg) [**EVIL ENERGY 6AN PTFE Fuel Line Kit E85 Nylon Braided Fuel Hose 20FT AN6 PTFE Fuel Line Hose(5/16 Inch ID)**](https://www.amazon.com/dp/B0922M63H8) EVIL ENERGY$83.024.8★5262%▲rising 14 ![6AN Automatic Transmission Cooler Kit Compatible with 4L60E 4L65E - Nylon Braided Fuel Line Hose Kit with Separator Clamp - 15FT Black](https://m.media-amazon.com/images/I/51MD7IBehwL.jpg) [**6AN Automatic Transmission Cooler Kit Compatible with 4L60E 4L65E - Nylon Braided Fuel Line Hose Kit with Separator Clamp - 15FT Black**](https://www.amazon.com/dp/B0DF2Q55VZ) HNeekyr$40.184.9★262%▲rising 15 ![EVIL ENERGY 6AN Fuel Line Kit 6AN Nylon Braided Fuel Line Hose Fitting Kit CPE 12FT Black](https://m.media-amazon.com/images/I/41sui1KlCqL.jpg) [**EVIL ENERGY 6AN Fuel Line Kit 6AN Nylon Braided Fuel Line Hose Fitting Kit CPE 12FT Black**](https://www.amazon.com/dp/B0CQLWLSZ9) EVIL ENERGY$44.724.7★2,0912%—flat ## **Product shelf** All 15 tracked products in this niche. Top sellersNewestTrending [![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 reviews](https://www.amazon.com/dp/B0BKPWN6N5) [![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 reviews](https://www.amazon.com/dp/B0D83KM6H3) [![Jecoupoon 6AN 70 Transmission Oil Cooler Hose Line kit Compatible with 4L60E 4L80E TH350 TH400 200-4R 700R4 C5 Stainless Steel Braided PTFE Hose TR6060](https://m.media-amazon.com/images/I/417WK6iDB6L.jpg)**Jecoupoon 6AN 70 Transmission Oil Cooler Hose Line kit Compatible with 4L60E 4L80E TH350 TH400 200-4R 700R4 C5 Stainless Steel Braided PTFE Hose TR6060** Jecoupoon**$27.83**4.5★101 reviews](https://www.amazon.com/dp/B0CMTQJZFN) [![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★761 reviews](https://www.amazon.com/dp/B0BKPXDQRP) [![EVIL ENERGY 6AN Fuel Line Kit 6AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black](https://m.media-amazon.com/images/I/51XMBWtJuiL.jpg)**EVIL ENERGY 6AN Fuel Line Kit 6AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black** EVIL ENERGY**$65.63**4.7★1,905 reviews](https://www.amazon.com/dp/B081W79ZC1) [![EVIL ENERGY 6AN Fuel Line Kit 6AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black](https://m.media-amazon.com/images/I/51I1FBOUUNL.jpg)**EVIL ENERGY 6AN Fuel Line Kit 6AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black** EVIL ENERGY**$66.68**4.8★430 reviews](https://www.amazon.com/dp/B0CQK2X8NZ) [![Aspaton 6AN 70 Transmission Fluid Oil Cooler Hose Line kit Compatible with Transmission TR6060 C5 C6 AOD 4L80E TH350 TH400 4L60E 700R4 200-4R](https://m.media-amazon.com/images/I/41aBj7O+ucL.jpg)**Aspaton 6AN 70 Transmission Fluid Oil Cooler Hose Line kit Compatible with Transmission TR6060 C5 C6 AOD 4L80E TH350 TH400 4L60E 700R4 200-4R** Aspaton**$27.57**4.5★104 reviews](https://www.amazon.com/dp/B0CMXR8QXW) [![Autoutfit AN6 15FT Automatic Transmission Cooler Line Kit For 4L60E 4L65E - Black Nylon Braided Hose Kit](https://m.media-amazon.com/images/I/51UrpG4rjmL.jpg)**Autoutfit AN6 15FT Automatic Transmission Cooler Line Kit For 4L60E 4L65E - Black Nylon Braided Hose Kit** Autoutfit**$37.05**4.3★151 reviews](https://www.amazon.com/dp/B0BV2D5HBM) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Quality-Overall**34% *“Excellent product”* **Size-Overall**14% *“Fit great”* **Value For Money**11% *“Good for the price”* **Efficiency**8% *“Worked like they were supposed to”* **Advertised Vs Actual Product**7% *“Worked as described”* **Assembly/Installation**7% *“easy to assemble”* **Leak-Proof**4% *“They work great and dont leak and where pretty easy to install and I think it had more power and it definitely shifted better”* **Pressure**2% *“Holds up well to PS pump pressures”* **Ease Of Use**2% *“if a vice is used it is extremely helpful and makes it, actually quite easy”* **Compatibility-Overall**2% *“Work great for TH350”* ### **What buyers complain about ** **Size-Overall**38% *“Didn't fit”* **Leak-Proof**27% *“Leaking everywhere”* **Advertised Vs Actual Product**8% *“False advertising not -6AN size”* **Quality-Overall**8% *“Junk”* **Compatibility-Overall**5% *“Fittings dont fit 1994 4l60e”* **Connectivity-Overall**2% *“They will not form a leak proof connection”* **Material Quality**1% *“Somewhat delicate plastic still”* #### **Top return reasons**- Size-Overall50% - Compatibility-Overall20% - Leak-Proof5% - Advertised Vs Actual Product4% - Defective Material/Parts4% - Quality-Overall3% - Assembly/Installation3% - Value For Money2% - Functionality-Overall1% - Product Condition1%