A 6AN hose fitting often decides whether a fuel line routes neatly through a crowded engine bay or needs an awkward loop. The fittings in this roundup use aluminum rather than brass, so your first check is the 6AN thread, 3/8-inch hose size, and rubber-line compatibility. Angle, package quantity, and hose-clamp requirements then determine the right choice for your project.
An Overview Of The Picks
EVIL ENERGY 6AN 90 Degree Push Lock
EVIL ENERGY 6AN Straight Push Lock
EVIL ENERGY 2PC 6AN 90 Degree Push Lock
EVIL ENERGY 6AN 45 Degree Push Lock
EVIL ENERGY 2PC 6AN Straight Push Lock
EVIL ENERGY 4PC 6AN Straight Push Lock
EVIL ENERGY 2PC 6AN 45 Degree Push Lock
EVIL ENERGY 6AN 180 Degree Push Lock
Meet The Standout Selections
Routing a fuel line around a frame member often calls for a fitting that changes direction without adding a bulky loop. The 90-degree shape creates a compact path between a 6AN connection and 3/8-inch rubber fuel hose, which suits underbody layouts and crowded engine compartments.
Made from 6061-T6 aluminum, the fitting pairs a 9/16-18 UNF thread with a push-lock connection. Compared with the straight EVIL ENERGY 6AN option, its useful distinction is directional routing rather than material or pressure capacity. A single fitting works well for a one-off correction.
Notable Gains
- The 90-degree body reduces the need for extra hose loops in confined areas.
- Push-lock installation suits quick routing changes during a fuel-system build.
- The stated 1,500 PSI maximum pressure supports high-pressure line planning.
Practical Considerations
- Confirm that your hose has a 3/8-inch barb and a rubber construction before ordering.
- Clamps remain recommended to reinforce the push-lock seal during vibration-heavy use.
Key Specs
Who It Suits Best
This fitting best suits experienced hobbyists making a single right-angle correction to a compatible rubber fuel line.
A Better Fit Elsewhere
The EVIL ENERGY 2PC 6AN 90 Degree Push Lock better serves projects requiring two matching right-angle connections.
Straight fittings handle the most common connection in a fuel-line layout: two sections that continue in the same direction. This EVIL ENERGY model joins a 6AN male thread to a 3/8-inch barb, giving it a straightforward role in inline assemblies where no directional change is required.
That simplicity makes it a practical starting point for a single replacement. The EVIL ENERGY 4PC 6AN Straight Push Lock carries the same basic dimensions and material, but the four-piece format suits a larger project that needs several matching joints.
Standout Benefits
- The straight configuration keeps a line moving directly between two connections.
- A 6AN male end makes the intended mating thread clear before installation.
- The push-lock arrangement supports a direct hose-to-fitting connection.
Small Caveats
- The fitting is limited to compatible rubber fuel lines, not braided or rigid hose.
- You will need an appropriate clamp to secure the connection as recommended.
Right Fit For
This option suits a straightforward inline repair by a DIY fuel-system hobbyist with the correct 6AN fitting and 3/8-inch rubber hose.
Where Another Pick Suits Better
The EVIL ENERGY 6AN 45 Degree Push Lock better suits a route that needs a gentle change of direction.
A paired set of right-angle fittings can simplify symmetrical fuel-line layouts. Each piece connects a 6AN thread to a 3/8-inch barb, so the 90-degree bodies work well where a hose must enter and leave a confined area on matching paths.
Compared with the single EVIL ENERGY 6AN 90 Degree Push Lock, the main benefit is having two matching pieces ready for paired connections. The honest catch is that a two-piece set does not cover a four-corner layout, so count the required connections before committing.
What Works In Its Favor
- Two matching fittings suit mirrored routing arrangements.
- The right-angle geometry shortens awkward hose paths in confined spaces.
- Both pieces use the same 6061-T6 aluminum construction.
- The stated temperature range covers -40°F to 248°F.
Trade Offs
- A larger build may need more than the two included fittings.
- Each rubber line still needs suitable clamping at the barb.
Feature Facts
Best Suited To
This pair suits a weekend fuel-line project requiring two matching 90-degree connections and compatible rubber hose.
Another Choice May Suit
The EVIL ENERGY 4PC 6AN Straight Push Lock suits larger inline assemblies needing four straight joints.
Not every crowded route needs a sharp 90-degree turn. The 45-degree angle creates a gradual offset that can be easier to accommodate around brackets, frame rails, or nearby suspension components, while the same 6AN and 3/8-inch dimensions preserve compatibility with the rest of this range.
That makes this single fitting a sensible middle ground between the straight and right-angle options. The EVIL ENERGY 2PC 6AN 45 Degree Push Lock offers the same geometry, but its paired format better supports a layout with two matching offsets.
Good Reasons To Consider
- The 45-degree bend handles moderate routing changes without a hard corner.
- Its compact geometry can reduce the amount of hose needed for an offset.
- The 1,500 PSI maximum working pressure matches the other options here.
Points To Note
- Confirm the rubber hose has enough flexibility to bend into the intended path.
- Clamps are recommended even though the connection uses a push-lock design.
Built With In Mind
This fitting suits a DIY hobbyist routing one fuel line through a moderate offset where a 90-degree fitting feels too sharp.
Not Your Match When
The EVIL ENERGY 6AN Straight Push Lock better suits a route that must continue directly without an offset.
Two straight fittings cover the most useful part of a compact fuel-line plan: joining compatible sections inline. Each has a 6AN male thread and a 3/8-inch barb, making the pair practical for a single line with two junctions or a pair of short matched runs.
Compared with the two-piece 90-degree set, this version preserves the hose direction instead of introducing a corner. For larger installations, the four-piece straight option provides more joints, though three inline sections are a more useful reason to choose that version.
Points In Its Favor
- Two matching connectors support compact paired line sections.
- The straight shape avoids changing the hose direction.
- A single-piece connection remains available from the straight range.
- The aluminum body limits added weight to a fuel-system assembly.
- The hose-clamp recommendation gives you a clear sealing step.
Softer Spots
- Two fittings may be insufficient for a four-junction inline assembly.
- Compatibility remains limited to the specified rubber hose size.
Quick Facts
Who Will Love This
This pair suits a DIY hobbyist completing two inline joints in a compatible 3/8-inch rubber fuel-line assembly.
Reach For A Different Pick When
The EVIL ENERGY 6AN 90 Degree Push Lock suits a project that needs a right-angle connection instead of an inline one.
Large fuel-line assemblies can consume several inline joints before the routing is finished. This four-piece straight set keeps every connection dimensionally consistent, giving you enough matching 6AN-to-3/8-inch fittings to cover multiple points in the same layout.
The EVIL ENERGY 2PC 6AN Straight Push Lock is easier to manage for a small repair, while this four-piece version reduces the chance of discovering a shortage midway through a longer build. The straight body also leaves direction changes to separate angled fittings.
What It Does Well
- Four matching fittings support several inline connection points.
- Consistent 6AN threads simplify planning a multi-joint assembly.
- The straight body gives you flexible placement along each run.
Things To Weigh
- Four fittings offer little benefit for a single short repair.
- You still need compatible 3/8-inch rubber fuel hose and suitable clamps.
- Direction changes require another fitting style.
The Right Fit
This four-piece set suits a project involving several inline joints across a larger compatible fuel-line system.
Swap It Out When
The EVIL ENERGY 2PC 6AN Straight Push Lock better suits a compact repair needing only two inline fittings.
Two moderate offsets often create a neater line than a pair of sharp corners. This set places a 45-degree fitting at each side of that offset, creating a balanced path for rubber fuel hose while retaining the standard 6AN thread at the ends.
Compared with the single EVIL ENERGY 6AN 45 Degree Push Lock, the paired format is useful for symmetrical layouts. For a single displaced section, the one-piece version remains the more focused choice, while a 90-degree set handles more abrupt changes.
The Good Stuff
- Matched 45-degree bodies suit balanced routing on both sides of an offset.
- The moderate angle can be gentler on nearby frame components than a 90-degree fitting.
- Both fittings use the common 6AN and 3/8-inch dimensions.
Details To Watch
- Your hose must have enough bend allowance to reach the offset naturally.
- Clamps are still advised to improve the barb connection.
At A Glance
Whose Shelf It Belongs On
This pair belongs with a DIY hobbyist planning a symmetrical fuel-line offset in a confined but flexible routing area.
Where A Sibling Pick Shines
The EVIL ENERGY 2PC 6AN 90 Degree Push Lock suits a sharper, more compact routing change.
A 180-degree fitting reverses the line direction, making it useful where a hose must double back around a fixed point. The compact change in direction can remove a long bend from the routing path while keeping the 6AN thread and 3/8-inch barb in a single body.
The straight option continues in one direction, while the 90-degree version makes a right-angle turn. The 180-degree design serves a narrower purpose, but it can be valuable in a carefully planned layout where a U-shaped route would otherwise be required.
Features That Help
- The reversed path can shorten a fuel-line route around a fixed obstacle.
- One body contains both the 6AN thread and 3/8-inch barb.
- The stated 1,500 PSI maximum pressure matches the rest of the range.
- 6061-T6 aluminum provides a lightweight fitting body.
Worth Noting
- The tight 180-degree shape may need more clearance than a gentle 45-degree offset.
- Rubber hose and clamp compatibility still govern the installation.
The Details
Made For
This fitting suits an experienced hobbyist planning a precise double-back in a compatible rubber fuel-line assembly.
Look Elsewhere When
The EVIL ENERGY 6AN 45 Degree Push Lock better suits a gradual offset that needs more hose bend allowance.
What Matters Before Ordering a Brass Hose Barb
Brass is common in many barb fittings, but the eight selections here use 6061-T6 aluminum. Your decision should therefore center on the actual connection dimensions and geometry rather than the material named in the product category.
Check the 6AN Thread
AN is a straight thread standard used in fuel and fluid systems. These fittings have a 6AN male thread measuring 9/16-18 UNF, where 18 denotes threads per inch and UNF is the thread series. Confirm that the mating fitting has the same size and thread before purchasing.
Match the Hose Exactly
Every fitting here ends in a 3/8-inch barb and is intended for rubber fuel lines. A barb is the ridged end that grips the hose, so the inside diameter of your hose must match it. The fittings are also specified for rubber lines, making material compatibility a firm pre-purchase check.
Choose the Routing Geometry
Straight fittings preserve direction, 45-degree fittings create moderate offsets, 90-degree fittings make sharp turns, and the 180-degree fitting reverses the line. Measure the available space and sketch the hose path before choosing, since tighter bends also require suitable hose flexibility.
Count Connections and Sealing Needs
One fitting covers a single connection, while the two- and four-piece sets cover more complex layouts. All of these options call for clamps to strengthen the seal. Include the necessary clamps in your parts list rather than assuming the push-lock connection alone handles hose retention.
Common Mistakes to Avoid in Hose-Barb Selection
A frequent mistake is focusing on the fitting angle before checking the 6AN thread and 3/8-inch barb size. A visually appealing connector is useless when its dimensions do not match your hose or mating fitting.
Also, confirm that the hose is compatible rubber fuel line and that you have a suitable clamp. The push-lock design does not remove the need to secure the connection properly.
What the Higher Tier Buys
These options share the same core specifications, so the meaningful differences are quantity and angle rather than premium materials. A four-piece set reduces the chance of running short during a multi-line build, while a paired angled set provides matched geometry for symmetrical routing.
Spend more only when the package quantity or precise angle solves a real layout constraint. A single correctly sized fitting is more useful than several unused pieces.
Frequently Asked Questions
Are these fittings made from brass?
No. Every fitting in this roundup uses 6061-T6 aluminum, so check the listed material before planning an installation based on brass.
What hose size fits these barb fittings?
Each fitting has a 3/8-inch barb designed for compatible rubber fuel hose. The hose’s inside diameter and material must match those requirements.
What does 6AN mean in this application?
It identifies the thread size and standard of the fitting’s male end. These fittings use a 9/16-18 UNF thread that must match the mating connection.
Do I need clamps with push-lock fittings?
Clamps are recommended to strengthen the seal and secure the hose on the barb. Include compatible clamps as part of the installation plan.
Which angle is best for a tight fuel-line route?
Choose 90 degrees for a sharp compact turn, 45 degrees for a gradual offset, and 180 degrees only when the line must reverse direction around a fixed obstacle.
Final Verdict
Match the 6AN thread and 3/8-inch rubber hose before choosing an angle or package size. A straight option handles basic inline work, while the 45-, 90-, and 180-degree fittings solve specific routing problems. Pick the geometry that fits your measured space, count every required connection, and plan the clamps before starting.