--- title: "3/8 transmission cooler hose — Niche Verdict: Skip it (44/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/3-8-transmission-cooler-hose" last_updated: "2026-07-10T00:38:36.827Z" locale: en meta: description: "a small market ($62K/yr) — 3/8 transmission cooler hose doesn't clear our bar today." "og:description": "a small market ($62K/yr) — 3/8 transmission cooler hose doesn't clear our bar today." "og:title": "3/8 transmission cooler hose — Niche Verdict: Skip it (44/100) | Amazon United States - Flapen" --- Back to Flapen home # **3/8 transmission cooler hose** **Skip it****44/100 ** a small market ($62K/yr) — 3/8 transmission cooler hose doesn't clear our bar today. **Market/yr** **$62K** **Growth (1y)** **+196.3%** **Products** **22** **Brands** **11** was 8 a year ago **Sellers** **23** **Price range** **$8.41–$32.09** **Returns** **1.9%** **Rating** **4.5★** **Skip it** Scored 44/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **3** ×0.30 Growth **76** ×0.30 Competition **38** ×0.20 Quality gap **37** ×0.10 Returns **85** ×0.10 ## **Demand** Weekly Amazon search volume, last 65 weeks — +196.3% year over year. 944472Spike '26Apr '25Jun '25Aug '25Nov '25Jan '26Mar '26Jun '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND Peak months: Mar · busiest ÷ quietest = 1.6× ## **Competition** - EVIL ENERGY47% - Boltigen16% - dojobkinb15% - Byredio7% - Eunice4% - CHOIMOON3% - Other (5 brands)8% The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them. 11 brands and 23 sellers compete here. **Brands** **11 **▲rising was 8 a year ago **Sellers** **23** **Top 5 brand share** **89%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![EVIL ENERGY 3/8 Transmission Oil Cooler Hose 10FT 250PSI SAE J1532](https://m.media-amazon.com/images/I/41eVkRO4b6L.jpg) [**EVIL ENERGY 3/8 Transmission Oil Cooler Hose 10FT 250PSI SAE J1532**](https://www.amazon.com/dp/B0BGCGBM78) EVIL ENERGY$30.064.6★69317%▼falling 2 ![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**](https://www.amazon.com/dp/B0BGBL4R2R) EVIL ENERGY$19.724.6★69316%▲rising 3 ![3/8 Inch (10mm) ID Fuel Line Hose 10FT NBR Rubber Push Lock Hose High Pressure 300PSI for Automotive Fuel Systems Engines](https://m.media-amazon.com/images/I/411jzEEDnFL.jpg) [**3/8 Inch (10mm) ID Fuel Line Hose 10FT NBR Rubber Push Lock Hose High Pressure 300PSI for Automotive Fuel Systems Engines**](https://www.amazon.com/dp/B09KRVYLMS) dojobkinb$10.424.6★5,52715%▼falling 4 ![EVIL ENERGY 3/8 Transmission Cooler Hose 5FT SAE J1532 250 PSI Power Steering Hose for Transmission Engine & Hydraulic Oil Cooling Systems](https://m.media-amazon.com/images/I/3166CY3XuhL.jpg) [**EVIL ENERGY 3/8 Transmission Cooler Hose 5FT SAE J1532 250 PSI Power Steering Hose for Transmission Engine & Hydraulic Oil Cooling Systems**](https://www.amazon.com/dp/B0FQ55XPT2) EVIL ENERGY$20.954.4★169%▲rising 5 ![Boltigen 3/8 ID Transmission Oil Cooler Hose 10FT Transmission Cooler Line for Power Steering Hydraulic Systems 300PSI Power Steering Hose SAE J1532 (3/8-10FT)](https://m.media-amazon.com/images/I/41ZjoZUwUxL.jpg) [**Boltigen 3/8 ID Transmission Oil Cooler Hose 10FT Transmission Cooler Line for Power Steering Hydraulic Systems 300PSI Power Steering Hose SAE J1532 (3/8-10FT)**](https://www.amazon.com/dp/B0FFGPH1ZF) Boltigen$22.254.6★929%▲rising 6 ![Boltigen 3/8 ID Transmission Oil Cooler Hose 20FT Transmission Cooler Line for Power Steering Hydraulic Systems 300PSI Power Steering Hose SAE J1532 (3/8-20FT)](https://m.media-amazon.com/images/I/41iiYXan0gL.jpg) [**Boltigen 3/8 ID Transmission Oil Cooler Hose 20FT Transmission Cooler Line for Power Steering Hydraulic Systems 300PSI Power Steering Hose SAE J1532 (3/8-20FT)**](https://www.amazon.com/dp/B0FFGM7DQH) Boltigen$30.994.6★924%▲rising 7 ![3/8 Inch (10mm) ID Fuel Line Hose 10 FT 300PSI Push Lock NBR Rubber Hose for Automotive](https://m.media-amazon.com/images/I/31SpILkGi3L.jpg) [**3/8 Inch (10mm) ID Fuel Line Hose 10 FT 300PSI Push Lock NBR Rubber Hose for Automotive**](https://www.amazon.com/dp/B09GM2X3TH) Eunice$8.414.6★1,8374%▼falling 8 ![Boltigen 3/8 ID Transmission Oil Cooler Hose 5FT Transmission Cooler Line for Power Steering Hydraulic Systems 300PSI Power Steering Hose SAE J1532 (3/8-5FT)](https://m.media-amazon.com/images/I/41G+Ziwi2yL.jpg) [**Boltigen 3/8 ID Transmission Oil Cooler Hose 5FT Transmission Cooler Line for Power Steering Hydraulic Systems 300PSI Power Steering Hose SAE J1532 (3/8-5FT)**](https://www.amazon.com/dp/B0FFGGC54Y) Boltigen$14.824.6★924%▲rising 9 ![EVIL ENERGY 3/8 Fuel Hose Line Push Lock NBR Rubber SAE 30R7 10FT 300PSI](https://m.media-amazon.com/images/I/41+LJjEF8-L.jpg) [**EVIL ENERGY 3/8 Fuel Hose Line Push Lock NBR Rubber SAE 30R7 10FT 300PSI**](https://www.amazon.com/dp/B097HD94NH) EVIL ENERGY$14.894.8★2,3253%▼falling 10 ![3/8 Transmission Oil Cooler Hose - J1532 Power Steering Hose 5 FT Ideal for Fuel Hydraulic and Power Steering Applications 300PSI High Pressure](https://m.media-amazon.com/images/I/41ndFSlDGSL.jpg) [**3/8 Transmission Oil Cooler Hose - J1532 Power Steering Hose 5 FT Ideal for Fuel Hydraulic and Power Steering Applications 300PSI High Pressure**](https://www.amazon.com/dp/B0DVSQ1SCK) Byredio$12.894.4★1113%▲rising 11 ![VWTNI 6AN Fuel Line 6AN 3/8 inch CPE Fuel Hose 10FT Transmission/Oil Cooler Lines Nylon Braided Fuel Line Hose.](https://m.media-amazon.com/images/I/512jttzvgSL.jpg) [**VWTNI 6AN Fuel Line 6AN 3/8 inch CPE Fuel Hose 10FT Transmission/Oil Cooler Lines Nylon Braided Fuel Line Hose.**](https://www.amazon.com/dp/B0CX16K437) VWTNI$16.384.7★2422%▼falling 12 ![3/8 Transmission Cooler Hose with Clamp 300PSI Transmission Oil Cooler Line SAE J1532 Standards for Power Steering Hydraulic Systems 10Ft](https://m.media-amazon.com/images/I/41saDfuPKDL.jpg) [**3/8 Transmission Cooler Hose with Clamp 300PSI Transmission Oil Cooler Line SAE J1532 Standards for Power Steering Hydraulic Systems 10Ft**](https://www.amazon.com/dp/B0GHN6DLKF) jkorytko$19.854.2★42%▲rising 13 ![Hayden Automotive 106 Transmission Oil Cooler Hose 3/8-IN Diameter x 4.5-FT Length](https://m.media-amazon.com/images/I/31kxsrj5i5L.jpg) [**Hayden Automotive 106 Transmission Oil Cooler Hose 3/8-IN Diameter x 4.5-FT Length**](https://www.amazon.com/dp/B000HE6H3S) Hayden Automotive$18.614.7★7802%▼falling 14 ![3/8 Transmission Oil Cooler Hose - 300 PSI Fuel Line Hose J1532 For Transmission Fluid Oil Coolant Diesel Hydraulic Fluid Lubricant Gas](https://m.media-amazon.com/images/I/41qcSuOzeRL.jpg) [**3/8 Transmission Oil Cooler Hose - 300 PSI Fuel Line Hose J1532 For Transmission Fluid Oil Coolant Diesel Hydraulic Fluid Lubricant Gas**](https://www.amazon.com/dp/B0D292V7FV) CHOIMOON$20.694.6★922%▼falling 15 ![3/8 Transmission Oil Cooler Hose - J1532 Power Steering Hose 10FT Ideal for Fuel Hydraulic and Power Steering 300PSI High Pressure](https://m.media-amazon.com/images/I/41ndFSlDGSL.jpg) [**3/8 Transmission Oil Cooler Hose - J1532 Power Steering Hose 10FT Ideal for Fuel Hydraulic and Power Steering 300PSI High Pressure**](https://www.amazon.com/dp/B0DB61RCQW) Byredio$22.504.4★1111%▼falling **~~Showing 15 of 22 — show all ~~** ## **Product shelf** All 22 tracked products in this niche. Top sellersNewestTrending [![EVIL ENERGY 3/8 Transmission Oil Cooler Hose 10FT 250PSI SAE J1532](https://m.media-amazon.com/images/I/41eVkRO4b6L.jpg)**EVIL ENERGY 3/8 Transmission Oil Cooler Hose 10FT 250PSI SAE J1532** EVIL ENERGY**$30.06**4.6★693 reviews](https://www.amazon.com/dp/B0BGCGBM78) [![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 reviews](https://www.amazon.com/dp/B0BGBL4R2R) [![3/8 Inch (10mm) ID Fuel Line Hose 10FT NBR Rubber Push Lock Hose High Pressure 300PSI for Automotive Fuel Systems Engines](https://m.media-amazon.com/images/I/411jzEEDnFL.jpg)**3/8 Inch (10mm) ID Fuel Line Hose 10FT NBR Rubber Push Lock Hose High Pressure 300PSI for Automotive Fuel Systems Engines** dojobkinb**$10.42**4.6★5,527 reviews](https://www.amazon.com/dp/B09KRVYLMS) [![EVIL ENERGY 3/8 Transmission Cooler Hose 5FT SAE J1532 250 PSI Power Steering Hose for Transmission Engine & Hydraulic Oil Cooling Systems](https://m.media-amazon.com/images/I/3166CY3XuhL.jpg)**EVIL ENERGY 3/8 Transmission Cooler Hose 5FT SAE J1532 250 PSI Power Steering Hose for Transmission Engine & Hydraulic Oil Cooling Systems** EVIL ENERGY**$20.95**4.4★16 reviews](https://www.amazon.com/dp/B0FQ55XPT2) [![Boltigen 3/8 ID Transmission Oil Cooler Hose 10FT Transmission Cooler Line for Power Steering Hydraulic Systems 300PSI Power Steering Hose SAE J1532 (3/8-10FT)](https://m.media-amazon.com/images/I/41ZjoZUwUxL.jpg)**Boltigen 3/8 ID Transmission Oil Cooler Hose 10FT Transmission Cooler Line for Power Steering Hydraulic Systems 300PSI Power Steering Hose SAE J1532 (3/8-10FT)** Boltigen**$22.25**4.6★92 reviews](https://www.amazon.com/dp/B0FFGPH1ZF) [![Boltigen 3/8 ID Transmission Oil Cooler Hose 20FT Transmission Cooler Line for Power Steering Hydraulic Systems 300PSI Power Steering Hose SAE J1532 (3/8-20FT)](https://m.media-amazon.com/images/I/41iiYXan0gL.jpg)**Boltigen 3/8 ID Transmission Oil Cooler Hose 20FT Transmission Cooler Line for Power Steering Hydraulic Systems 300PSI Power Steering Hose SAE J1532 (3/8-20FT)** Boltigen**$30.99**4.6★92 reviews](https://www.amazon.com/dp/B0FFGM7DQH) [![3/8 Inch (10mm) ID Fuel Line Hose 10 FT 300PSI Push Lock NBR Rubber Hose for Automotive](https://m.media-amazon.com/images/I/31SpILkGi3L.jpg)**3/8 Inch (10mm) ID Fuel Line Hose 10 FT 300PSI Push Lock NBR Rubber Hose for Automotive** Eunice**$8.41**4.6★1,837 reviews](https://www.amazon.com/dp/B09GM2X3TH) [![Boltigen 3/8 ID Transmission Oil Cooler Hose 5FT Transmission Cooler Line for Power Steering Hydraulic Systems 300PSI Power Steering Hose SAE J1532 (3/8-5FT)](https://m.media-amazon.com/images/I/41G+Ziwi2yL.jpg)**Boltigen 3/8 ID Transmission Oil Cooler Hose 5FT Transmission Cooler Line for Power Steering Hydraulic Systems 300PSI Power Steering Hose SAE J1532 (3/8-5FT)** Boltigen**$14.82**4.6★92 reviews](https://www.amazon.com/dp/B0FFGGC54Y) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Quality-Overall**36% *“Quality hose and price is great”* **Advertised Vs Actual Product**11% *“as described”* **Value For Money**11% *“Good value for the money”* **Efficiency**6% *“Worked to fix my problem”* **Size-Overall**6% *“Fit great”* **Durability**4% *“more durable”* **Fuel Efficiency**4% *“Very good gas hose”* **Pressure**3% *“It has a braided layer to handle the pressure without issues”* **Leak-Proof**3% *“Stopped my leak”* **Ease Of Use**1% *“easy to route”* ### **What buyers complain about ** **Quality-Overall**15% *“Poor quality hose”* **Leak-Proof**10% *“And leaked the next day”* **Size-Overall**9% *“it was 3 short of 10'”* **Durability**8% *“It broke down”* **Thickness**7% *“thick feel of the EE hose”* **Material Quality**5% *“Cheap material”* **Value For Money**4% *“Cost me a couple grand for a transmission because the hose rated for transmission fluid blew out”* **Pressure**4% *“Everything I had burst was at 55psi aka stock LS fuel rail pressure”* **Fuel Efficiency**2% *“Worst thing to buy for fuel”* **Color**2% *“it became the color of dark tea”* #### **Top return reasons**- Size-Overall74% - Compatibility-Overall5% - Advertised Vs Actual Product4% - Value For Money3% - Quality-Overall2% - Pressure2% - Defective Material/Parts2% - Material Quality1% - Functionality-Overall1% - Certifications1%