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🔥 Keep your fuel flow flawless and your engine roaring! ⚡
The EVIL ENERGY 3/8" Fuel Check Valve is a robust, black anodized 6061-T6 aluminum inline valve featuring a stainless steel spring for reliable one-way fuel flow. Designed for pressures up to 6 bar and temperatures from -22℉ to 266℉, it prevents fuel backflow, ensuring stable system performance. Compact and easy to install with barb connectors, it’s ideal for carburetor and low-pressure fuel systems using various fluids except methanol.
























| ASIN | B08JJ1F79D |
| Best Sellers Rank | #1,484 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Exhaust Check Valves |
| Brand | EVIL ENERGY |
| Brand Name | EVIL ENERGY |
| Connector Type | Barb |
| Customer Reviews | 4.5 out of 5 stars 3,160 Reviews |
| Exterior Finish | Stainless Steel |
| Inlet Connection Size | 0.38 inches |
| Inlet Connection Type | National Pipe Tapered |
| Manufacturer | EVIL ENERGY |
| Manufacturer Part Number | EV01342S10BK |
| Material | Aluminum |
| Material Type | Aluminum |
| Maximum Pressure | 6 bar |
| Model Number | EV01342S10BK |
| Number of Items | 2 |
| Number of Pieces | 2 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.38 inches |
| Outlet Connection Type | National Pipe Tapered |
| Set Name | 2 |
| Size | 3/8 |
| Thread Size | 3/8 inch (10mm) |
| Thread Type | NPT |
| Unit Count | 2 Count |
| Valve Type | check valve |
D**3
Works as intended.
My zero turn would crank a little longer than I thought it should before it would start. I suspected the fuel was siphoning back to the tank after shutdown. This was cheap and easy to install so why not give it a try. Glad I did. Much better now.
T**T
Very nice will buy again 👌
Works well for one way vent for modified valve cover predator 212 build
R**.
They Work Great
Works great. Little expensive but worth it.
L**N
Works well as advertised
These check valves fit well, work as they should and look good.
F**S
Don't let the price or origin fool you. This works, and appears to be sturdy.
My car would have to be primed, or "quick start" sprayed into the carb if not started for 3 days. Fuel was draining back towards the gas tank. This one-way valve solved that.
S**A
Five star product worth every penny
If you have a turbo, you’re running a catch. Can you really need these check valves it’ll save your motor. Install was real easy and you can save me thousands of dollars all metal construction very strong. Very sound part a must have if you have a turbo
D**S
Dodge truck
Works great for what I had intended for it. Thanks
T**N
Not a strong check valve.
These have a very flimsy rubber diaphragm that will dislodge more than it'll stay in place and cause fuel flow problems because it rolls into the outlet nozzle and blocks fuel flow. Happened on 3 different ones in a 55psi fuel injection system gas line. Toss them. Not robust.
A**R
Good Price Good Product
These work exceptionally weel in preventing loss of prime to the electric fuel pump.
C**S
Quality and correctly sized
Nice construction, used for pond water feature rather than fuel so s tad over engineered for the purpose but I like that. Good fit well made.
R**.
Pesimo
Pesima calidad, no es de la medida que describe (mas chica) y no soporta mas de 5 psi de presión, no lo puedo devolver porque ya lo use!
M**D
Work will
Recommend
Y**D
The Flow Rate not what you can expected
sure was made from good material , but the flow not what you can expected.
Trustpilot
1 day ago
2 days ago