












⚡ Power your ride with precision—no leaks, just pure performance!
The EVIL ENERGY 6AN Male to 3/8" Hardline Compression Fitting Adapter is a high-quality, aluminum alloy and brass component engineered for secure fuel system connections. Featuring a 37-degree flare angle and 9/16 UNF thread size, it ensures a leak-proof seal on stainless steel or aluminum hardlines, making it ideal for engine modifications and fuel delivery upgrades. This 2-piece set is highly rated for durability and perfect fitment, especially in classic automotive applications.























| ASIN | B0BN5SVK35 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #3,095 in Automotive ( See Top 100 in Automotive ) #8 in Automotive Replacement Fuel System Fittings |
| Brand | EVIL ENERGY |
| Color | 2PCS |
| Connector Type | Flare |
| Customer Reviews | 4.8 4.8 out of 5 stars (634) |
| Date First Available | November 23, 2022 |
| Exterior Finish | Aluminum, Brass |
| Item Package Quantity | 1 |
| Item Weight | 1.44 ounces |
| Manufacturer | Speedwow Tuning |
| Material | Aluminum |
| Number of Pieces | 2 |
| Package Dimensions | 4.8 x 4.17 x 1.1 inches |
| Set Name | 2-Piece Set (6AN to 3/8) |
| Size | 6AN to 3/8 |
| Style | 2PCS |
| Thread Size | 0.375 inch |
| Thread Type | UNF |
D**S
Good quality item
Good quality. Did not leak. Good price for the money. Works perfect for the steal fuel line on 90's GM trucks
S**N
Good part
Good fit. Worked like they should.
J**N
Perfect
I am very pleased. Worked perfectly and don’t leak a drop. Easy to do. My first time ever doing these and I was very satisfied. I actually used this to make a repair for a hardline that got damaged and had to make a splice. Used compression fittings and it works flawlessly.
P**G
Fittings
Nice fittings
F**E
No leaks, easy to install
These fittings are fantastic. Bought several other brands and fought leaks for a month now put these on fix the problem.!
W**N
Good
Worked good for my 10 gallon fuel cell into factory lines, hasn’t leaked Been on there for about a year
D**D
happy coustomer
Great parts and will be buying more from Evil Energy
N**E
Great quality
Great way to adapt sending unit to AN fittings. Evil energy fittings always seem to be built with quality
R**C
Used to make power steering lines, probably not the best application for aluminum compression fittings but they havnt failed and i couldnt grab steel ones at the time, temporary permanent fix. Havnt had any issues with evil energy fittings on any custom builds so far.
D**A
Not Evil Energy ,very disappointed.
J**D
Once again Evil comes through with a good hands on product that works
J**.
Used these for trans cooler lines. Mint!
D**Y
Worked exactly as expected.
Trustpilot
2 weeks ago
2 weeks ago