--- title: "8an fuel line kit — Niche Verdict: Skip it (45/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/8an-fuel-line-kit" last_updated: "2026-07-10T03:44:28.018Z" locale: en meta: description: "a small market ($88K/yr) — 8an fuel line kit doesn't clear our bar today." "og:description": "a small market ($88K/yr) — 8an fuel line kit doesn't clear our bar today." "og:title": "8an fuel line kit — Niche Verdict: Skip it (45/100) | Amazon United States - Flapen" --- Back to Flapen home # **8an fuel line kit** **Skip it****45/100 ** a small market ($88K/yr) — 8an fuel line kit doesn't clear our bar today. **Market/yr** **$88K** **Growth (1y)** **+182.8%** **Products** **33** **Brands** **4** was 12 a year ago **Sellers** **8** **Price range** **$7.25–$83.45** **Returns** **2.8%** **Rating** **4.8★** **Skip it** Scored 45/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **4** ×0.30 Growth **75** ×0.30 Competition **56** ×0.20 Quality gap **20** ×0.10 Returns **78** ×0.10 ## **Demand** Weekly Amazon search volume, last 104 weeks — +182.8% year over year. 2K1KSpike '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND No pronounced peak months · busiest ÷ quietest = 1.4× ## **Competition** - EVIL ENERGY88% - Ucreative6% - Podavelle3% - LEDAUT2% The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them. 4 brands and 8 sellers compete here. **Brands** **4 **▼falling was 12 a year ago **Sellers** **8** **Top 5 brand share** **100%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![EVIL ENERGY 8AN Hose End Fitting Straight Swivel for CPE Braided Hose Black 2PCS](https://m.media-amazon.com/images/I/310LH3F+GkL.jpg) [**EVIL ENERGY 8AN Hose End Fitting Straight Swivel for CPE Braided Hose Black 2PCS**](https://www.amazon.com/dp/B08NYLF8VQ) EVIL ENERGY$16.924.8★1,56715%▲rising 2 ![EVIL ENERGY 8AN Hose End Fitting Straight Swivel for CPE Braided Hose Black 4PCS](https://m.media-amazon.com/images/I/31koEqIgA3L.jpg) [**EVIL ENERGY 8AN Hose End Fitting Straight Swivel for CPE Braided Hose Black 4PCS**](https://www.amazon.com/dp/B0BN5VB9TK) EVIL ENERGY$22.824.8★50114%—flat 3 ![EVIL ENERGY 8AN Flare to 8AN ORB Male 2PCS Fuel Rail Adapter Fitting Black](https://m.media-amazon.com/images/I/41sQ-rYrzHL.jpg) [**EVIL ENERGY 8AN Flare to 8AN ORB Male 2PCS Fuel Rail Adapter Fitting Black**](https://www.amazon.com/dp/B0811THXV2) EVIL ENERGY$17.654.8★2,05611%▲rising 4 ![EVIL ENERGY 8AN Hose End Fitting 90 Degree Swivel for CPE Braided Hose Black 2PCS](https://m.media-amazon.com/images/I/313fpb-PruL.jpg) [**EVIL ENERGY 8AN Hose End Fitting 90 Degree Swivel for CPE Braided Hose Black 2PCS**](https://www.amazon.com/dp/B08NYLSMK6) EVIL ENERGY$18.054.8★1,5678%▲rising 5 ![EVIL ENERGY 8AN Hose End Fitting Kit Straight 45 90 180 Degree with AN8 Male to Male Coupler & 8AN Hose Separator Clamp for CPE Braided Hose](https://m.media-amazon.com/images/I/41BSxY3vVGL.jpg) [**EVIL ENERGY 8AN Hose End Fitting Kit Straight 45 90 180 Degree with AN8 Male to Male Coupler & 8AN Hose Separator Clamp for CPE Braided Hose**](https://www.amazon.com/dp/B0CPJD8JVZ) EVIL ENERGY$40.324.8★1715%▼falling 6 ![EVIL ENERGY 8AN Male to 3/8 NPT Fitting Straight Aluminum Black 2PCS](https://m.media-amazon.com/images/I/41xiCHmJmrL.jpg) [**EVIL ENERGY 8AN Male to 3/8 NPT Fitting Straight Aluminum Black 2PCS**](https://www.amazon.com/dp/B0BNT2FB5P) EVIL ENERGY$11.854.8★2,1495%—flat 7 ![EVIL ENERGY 8AN Fuel Line Kit 8AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black](https://m.media-amazon.com/images/I/51XMBWtJuiL.jpg) [**EVIL ENERGY 8AN Fuel Line Kit 8AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black**](https://www.amazon.com/dp/B081W9XRNJ) EVIL ENERGY$83.454.7★1,9055%▼falling 8 ![EVIL ENERGY 8AN Straight Push Lock Hose Fitting End Black 2PCS](https://m.media-amazon.com/images/I/31rYMAe9HuL.jpg) [**EVIL ENERGY 8AN Straight Push Lock Hose Fitting End Black 2PCS**](https://www.amazon.com/dp/B08NYMNFZ1) EVIL ENERGY$16.474.8★9474%▲rising 9 ![EVIL ENERGY 8AN Male to 8AN Male Flare Coupler Union Straight Fuel Hose Adapter Fitting Black 2PCS](https://m.media-amazon.com/images/I/41xkRBGF8-L.jpg) [**EVIL ENERGY 8AN Male to 8AN Male Flare Coupler Union Straight Fuel Hose Adapter Fitting Black 2PCS**](https://www.amazon.com/dp/B07KW6S84X) EVIL ENERGY$16.584.8★1,7173%▲rising 10 ![Ucreative 8AN CPE Fuel Hose Line Fitting Kit AN8 Nylon Braided Fuel Hose 10FT Black ID: 0.43 inch (11mm)](https://m.media-amazon.com/images/I/41pHT4B+QJL.jpg) [**Ucreative 8AN CPE Fuel Hose Line Fitting Kit AN8 Nylon Braided Fuel Hose 10FT Black ID: 0.43 inch (11mm)**](https://www.amazon.com/dp/B0D55CXR49) Ucreative$37.264.6★1623%—flat 11 ![Podavelle 8AN Male Flare to 8AN ORB O-ring Boss Fuel Pump Rail Adapter Fitting Aluminum Black Pack of 2](https://m.media-amazon.com/images/I/41HnnKgfAlL.jpg) [**Podavelle 8AN Male Flare to 8AN ORB O-ring Boss Fuel Pump Rail Adapter Fitting Aluminum Black Pack of 2**](https://www.amazon.com/dp/B0CQN1WQRZ) Podavelle$16.774.8★5762%▼falling 12 ![EVIL ENERGY 8AN Hose End Fitting 90 Degree Swivel for CPE Braided Hose Black 4PCS](https://m.media-amazon.com/images/I/31u6siMDNRL.jpg) [**EVIL ENERGY 8AN Hose End Fitting 90 Degree Swivel for CPE Braided Hose Black 4PCS**](https://www.amazon.com/dp/B0BN5SYMDS) EVIL ENERGY$26.014.8★5012%▲rising 13 ![LEDAUT 8AN Swivel Fuel Hose End Fitting Kit - Straight 45 90 180 Fittings & Hose Separator Clamps - Aluminum Black](https://m.media-amazon.com/images/I/51hlVbIk5dL.jpg) [**LEDAUT 8AN Swivel Fuel Hose End Fitting Kit - Straight 45 90 180 Fittings & Hose Separator Clamps - Aluminum Black**](https://www.amazon.com/dp/B0B9RYBP9Y) LEDAUT$34.734.4★2442%▼falling 14 ![EVIL ENERGY 8AN 90 Degree Push Lock Hose Fitting End Black](https://m.media-amazon.com/images/I/31gAgOZBKGL.jpg) [**EVIL ENERGY 8AN 90 Degree Push Lock Hose Fitting End Black**](https://www.amazon.com/dp/B075B6K2WL) EVIL ENERGY$11.004.7★2,9312%—flat 15 ![Ucreative 8AN 90 Degree Push Lock Hose Fitting End Black 2PCS](https://m.media-amazon.com/images/I/31r+IWKmr2L.jpg) [**Ucreative 8AN 90 Degree Push Lock Hose Fitting End Black 2PCS**](https://www.amazon.com/dp/B0BZKKFBVJ) Ucreative$11.074.8★5292%—flat **~~Showing 15 of 33 — show all ~~** ## **Product shelf** All 33 tracked products in this niche. Top sellersNewestTrending [![EVIL ENERGY 8AN Hose End Fitting Straight Swivel for CPE Braided Hose Black 2PCS](https://m.media-amazon.com/images/I/310LH3F+GkL.jpg)**EVIL ENERGY 8AN Hose End Fitting Straight Swivel for CPE Braided Hose Black 2PCS** EVIL ENERGY**$16.92**4.8★1,567 reviews](https://www.amazon.com/dp/B08NYLF8VQ) [![EVIL ENERGY 8AN Hose End Fitting Straight Swivel for CPE Braided Hose Black 4PCS](https://m.media-amazon.com/images/I/31koEqIgA3L.jpg)**EVIL ENERGY 8AN Hose End Fitting Straight Swivel for CPE Braided Hose Black 4PCS** EVIL ENERGY**$22.82**4.8★501 reviews](https://www.amazon.com/dp/B0BN5VB9TK) [![EVIL ENERGY 8AN Flare to 8AN ORB Male 2PCS Fuel Rail Adapter Fitting Black](https://m.media-amazon.com/images/I/41sQ-rYrzHL.jpg)**EVIL ENERGY 8AN Flare to 8AN ORB Male 2PCS Fuel Rail Adapter Fitting Black** EVIL ENERGY**$17.65**4.8★2,056 reviews](https://www.amazon.com/dp/B0811THXV2) [![EVIL ENERGY 8AN Hose End Fitting 90 Degree Swivel for CPE Braided Hose Black 2PCS](https://m.media-amazon.com/images/I/313fpb-PruL.jpg)**EVIL ENERGY 8AN Hose End Fitting 90 Degree Swivel for CPE Braided Hose Black 2PCS** EVIL ENERGY**$18.05**4.8★1,567 reviews](https://www.amazon.com/dp/B08NYLSMK6) [![EVIL ENERGY 8AN Hose End Fitting Kit Straight 45 90 180 Degree with AN8 Male to Male Coupler & 8AN Hose Separator Clamp for CPE Braided Hose](https://m.media-amazon.com/images/I/41BSxY3vVGL.jpg)**EVIL ENERGY 8AN Hose End Fitting Kit Straight 45 90 180 Degree with AN8 Male to Male Coupler & 8AN Hose Separator Clamp for CPE Braided Hose** EVIL ENERGY**$40.32**4.8★171 reviews](https://www.amazon.com/dp/B0CPJD8JVZ) [![EVIL ENERGY 8AN Male to 3/8 NPT Fitting Straight Aluminum Black 2PCS](https://m.media-amazon.com/images/I/41xiCHmJmrL.jpg)**EVIL ENERGY 8AN Male to 3/8 NPT Fitting Straight Aluminum Black 2PCS** EVIL ENERGY**$11.85**4.8★2,149 reviews](https://www.amazon.com/dp/B0BNT2FB5P) [![EVIL ENERGY 8AN Fuel Line Kit 8AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black](https://m.media-amazon.com/images/I/51XMBWtJuiL.jpg)**EVIL ENERGY 8AN Fuel Line Kit 8AN Nylon Braided Fuel Line Hose Fitting Kit CPE 20FT Black** EVIL ENERGY**$83.45**4.7★1,905 reviews](https://www.amazon.com/dp/B081W9XRNJ) [![EVIL ENERGY 8AN Straight Push Lock Hose Fitting End Black 2PCS](https://m.media-amazon.com/images/I/31rYMAe9HuL.jpg)**EVIL ENERGY 8AN Straight Push Lock Hose Fitting End Black 2PCS** EVIL ENERGY**$16.47**4.8★947 reviews](https://www.amazon.com/dp/B08NYMNFZ1) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Quality-Overall**34% *“Very nice kit”* **Size-Overall**19% *“Fit good”* **Advertised Vs Actual Product**13% *“Product as advertised”* **Value For Money**11% *“Good price point”* **Leak-Proof**10% *“Works well and doesn't leak”* **Assembly/Installation**4% *“Easy to assemble”* **Color**3% *“Great black color”* **Ease Of Use**2% *“Easy to use”* **Durability**1% *“how they hold up”* **Compression**1% *“Good hoses that I used on my air compressor”* ### **What buyers complain about ** **Leak-Proof**38% *“Leaking at connection point”* **Quality-Overall**38% *“Cheap junk”* **Durability**8% *“Pulled my heads after the the engine dropped a valve due to a rocker arm failure”* **Rubber Quality**8% *“Upon pulling my injectors I noticed the bottoms of all of them had a black rubberish film on them”* #### **Top return reasons**- Size-Overall76% - Compatibility-Overall7% - Advertised Vs Actual Product4% - Leak-Proof2% - Quality-Overall2% - Defective Material/Parts2% - Functionality-Overall2% - Value For Money1% - Product Condition1% - Assembly/Installation1%