A fuel-line connection rarely fails because the fitting looked impressive on a shelf. It fails because the thread, barb size, hose material, and bend angle don’t match the system. These barbed pipe fittings use a 6AN thread on one end and a 3/8-inch barb for rubber fuel lines, giving automotive DIYers several practical routing options.
The Choices Worth Comparing
EVIL ENERGY 6AN 90° Push-Lock Hose Fitting
EVIL ENERGY 6AN Straight Push-Lock Hose Fitting
EVIL ENERGY 2PCS 6AN 90° Push-Lock Hose Fitting
EVIL ENERGY 6AN 45° Push-Lock Hose Fitting
EVIL ENERGY 2PCS 6AN Straight Push-Lock Hose Fitting
EVIL ENERGY 4PCS 6AN Straight Push-Lock Hose Fitting
EVIL ENERGY 2PCS 6AN 45° Push-Lock Hose Fitting
EVIL ENERGY 6AN 180° Push-Lock Hose Fitting
A 90-degree junction makes sense where a straight fitting would force a sharp, awkward change in hose direction. This EVIL ENERGY model pairs a 6AN thread with a 3/8-inch barb, while the push-lock design secures rubber fuel-line hose over the ridged barb. AN refers to the thread standard used for these automotive connections, and 9/16-18 UNF means Unified Fine Thread with a 9/16-inch diameter and 18 threads per inch.
For a compact routing job, the angle is the feature that earns this fitting its place. The body uses 6061-T6 aluminum, carries a stated maximum working pressure of 1,500 PSI, and is rated from -40°F to 248°F. The honest catch is that it suits rubber fuel lines only, so the hose material deserves a careful check before installation.
Everyday Perks
- The 90-degree body simplifies compact hose routing.
- A 3/8-inch barb joins a 6AN threaded connection.
- 6061-T6 aluminum provides a lightweight aluminum construction.
- The stated pressure and temperature limits suit many automotive fuel-line environments.
Trade Offs
- Compatibility is limited to rubber fuel lines, not every hose type.
- Clamps are recommended to reinforce the seal at the barb.
Key Specs
Built With In Mind
This fitting suits automotive DIYers routing a rubber fuel line around a compact 90-degree bend.
A Better Fit Elsewhere
EVIL ENERGY 6AN Straight Push-Lock Hose Fitting suits projects with a straight inline run and no directional change.
A straight fitting keeps the hose route uncomplicated, which makes this EVIL ENERGY option useful for routine fuel-line connections. Unlike the 90-degree fitting in the previous pick, the body maintains the same line of travel from the 6AN thread to the 3/8-inch barb. That straightforward geometry can be easier to position in a crowded engine bay or beneath a vehicle where a sharp bend is unnecessary.
The push-lock body is made from 6061-T6 aluminum, with a stated maximum working pressure of 1,500 PSI and a temperature range of -40°F to 248°F. Installation is based on pushing compatible rubber fuel-line hose over the barb, and clamps are recommended to improve the seal. For most single-line repairs, that is an uncomplicated approach.
What Makes Sense
- The straight body fits uncomplicated inline routing.
- The push-lock connection avoids an angled body in confined spaces.
- The stated 1,500 PSI limit suits demanding automotive applications.
Minor Gripes
- The barb accepts rubber fuel-line hose only.
- Clamps remain advisable even with the push-lock connection.
Who Should Grab It
This fitting works well for DIYers completing a straight fuel-line run with 6AN hardware and 3/8-inch rubber hose.
Consider Something Else When
EVIL ENERGY 6AN 90° Push-Lock Hose Fitting serves projects requiring a more pronounced direction change.
Two 90-degree fittings cover a common automotive pattern: a fuel-line route that needs matching directional changes at separate points. The 6AN connection uses a 9/16-18 UNF thread, and the opposite end uses a 3/8-inch barb for rubber fuel-line hose. Compared with EVIL ENERGY 6AN 90° Push-Lock Hose Fitting, the connection specifications and angle remain the same, while the pack provides two units.
That makes this a practical option for a paired installation, though the second fitting offers little value when a repair calls for only one connection. The aluminum bodies use 6061-T6 construction, and the stated limits reach 1,500 PSI and -40°F to 248°F. Push-lock installation keeps the initial setup direct, with clamps recommended around the hose.
Key Advantages
- Two matching 90-degree fittings support a complete route.
- The 6AN and 3/8-inch barb combination serves common fuel-line hardware.
- Both fittings use the same 6061-T6 aluminum construction.
- The shared 1,500 PSI rating keeps expectations consistent across the pair.
Practical Considerations
- Both barb ends are limited to rubber fuel-line hose.
- Clamps are recommended for each connection.
At A Glance
The Right Fit
This two-piece set suits automotive hobbyists building a fuel-line route that needs two compact 90-degree connections.
Look Elsewhere When
EVIL ENERGY 6AN 90° Push-Lock Hose Fitting is a cleaner choice for a repair requiring only one elbow.
A 45-degree fitting fills the space between a straight run and the sharper turn of a 90-degree connector. That makes the EVIL ENERGY 45° model useful when a full elbow would crowd the surrounding components. The connection itself is unchanged from the angled picks before it: a 6AN thread with 9/16-18 UNF sizing joins a 3/8-inch barb for rubber fuel-line hose.
For a carefully planned route, the moderate angle can reduce the need for an abrupt redirection, although you still need adequate space around the fitting. The 6061-T6 aluminum body has a stated maximum working pressure of 1,500 PSI and a temperature range of -40°F to 248°F. The push-lock arrangement is straightforward, and a clamp can reinforce the barb-to-hose seal.
Everyday Wins
- The 45-degree angle offers a more moderate directional change.
- Its compact bend can fit between nearby engine-bay components.
- The 3/8-inch barb and 6AN thread serve common automotive fuel-line connections.
- 6061-T6 aluminum keeps the fitting body relatively light.
Points To Note
- Rubber fuel-line hose is the supported barb-hose combination.
- Clamps are recommended to secure the connection.
Feature Snapshot
Made For
This fitting suits automotive DIYers who need a moderate bend without the footprint of a 90-degree elbow.
Another Choice May Suit
EVIL ENERGY 2PCS 6AN 90° Push-Lock Hose Fitting fits a project needing two tighter direction changes.
Two straight fittings cover many ordinary fuel-line repairs without adding unnecessary bends. This EVIL ENERGY set uses the same 6AN thread, 3/8-inch barb, and 6061-T6 aluminum body as EVIL ENERGY 6AN Straight Push-Lock Hose Fitting. The meaningful difference is quantity, which makes the pair convenient for a route with two inline connection points.
For routine workshop use, the simple geometry is easier to position than an elbow. The fittings have a stated maximum working pressure of 1,500 PSI and a temperature range of -40°F to 248°F. They are intended for rubber fuel lines, with clamps recommended after the hose is pushed over the barb.
Advantages To Know
- Two straight fittings suit paired inline connections.
- The simple body works well in confined installation areas.
- Both fittings share the same stated pressure and temperature limits.
Some Limits To Know
- The supported barb connection is for rubber fuel-line hose.
- Clamps help improve the seal around each barb.
Who Will Love This
This set suits weekend mechanics handling routine fuel-line repairs that call for two straight connectors.
Swap It Out When
EVIL ENERGY 4PCS 6AN Straight Push-Lock Hose Fitting is more practical for a larger multi-connection project.
A four-piece straight set is easier to manage when an automotive project includes several inline fuel-line connections. Each EVIL ENERGY fitting retains the same 6AN-to-3/8-inch arrangement found in the two-piece straight set, so the four-unit package changes convenience rather than connection specifications. Straight bodies also remain easy to orient in a crowded installation area.
You still need compatible rubber fuel-line hose and suitable mating hardware for the threaded end. The 6061-T6 aluminum bodies carry a stated 1,500 PSI maximum working pressure and operate within a -40°F to 248°F range. The push-lock connection is simple to assemble, and clamps are recommended to reinforce the seal.
What Pays Off
- Four fittings cover a larger multi-connection route.
- Straight bodies simplify alignment in confined spaces.
- The repeated 6AN and 3/8-inch layout keeps connections consistent.
- Each fitting carries the same stated 1,500 PSI limit.
Small Caveats
- Extra fittings have limited value for a one-connection repair.
- Rubber fuel-line hose and clamps remain necessary considerations.
Quick Facts
Best Suited To
These fittings suit automotive DIYers planning a fuel-line system with several straight connection points.
Reach For A Different Pick When
EVIL ENERGY 6AN Straight Push-Lock Hose Fitting is more appropriate for a single inline repair.
Two 45-degree fittings suit a symmetrical route that needs moderate direction changes without the sharper footprint of 90-degree bodies. This EVIL ENERGY pair uses the same 6AN thread, 3/8-inch barb, and 6061-T6 aluminum construction as EVIL ENERGY 6AN 45° Push-Lock Hose Fitting. The extra unit simply gives you a matching second connection.
That geometry can be especially helpful in a busy engine bay, provided the surrounding components leave enough turning room. The stated working-pressure limit is 1,500 PSI, and the temperature range is -40°F to 248°F. Use rubber fuel-line hose with the barb, and add a clamp as recommended to reinforce the connection.
What Stands Out
- The 45-degree angle offers balanced direction change.
- Two fittings provide matching endpoints for a routed line.
- The 3/8-inch barb suits rubber fuel-line hose.
Less Ideal Details
- Each connection needs enough space for the angled body.
- Clamps are recommended for a secure barb connection.
Whose Shelf It Belongs On
This pair belongs in an automotive DIYer’s kit for paired moderate-angle fuel-line connections.
Where A Sibling Pick Shines
EVIL ENERGY 2PCS 6AN 90° Push-Lock Hose Fitting suits a route that needs tighter, more compact turns.
A 180-degree fitting serves a very specific task: reversing the hose direction while keeping the threaded and barbed ends aligned. Compared with the straight EVIL ENERGY fitting, this body creates a return path rather than continuing the original line. It can suit a compact U-shaped route, though surrounding hardware must leave room for the return.
The connection remains 6AN to 3/8 inches, with a 9/16-18 UNF thread. Its 6061-T6 aluminum body has a stated maximum working pressure of 1,500 PSI and a temperature range of -40°F to 248°F. Only rubber fuel-line hose is supported at the barb, and clamps are recommended to improve the seal.
Useful Highlights
- The 180-degree body handles a hose direction reversal.
- Aligned ends support compact return-loop routing.
- The 6AN thread and 3/8-inch barb match the fittings in this list.
- 6061-T6 aluminum keeps the body light.
What To Weigh
- The 180-degree shape is less versatile than a straight or 45-degree fitting.
- Rubber fuel-line hose and clamping considerations remain.
Technical Highlights
Right Fit For
This fitting suits automotive DIYers building a fuel-line route that returns in the opposite direction.
Not Your Match When
EVIL ENERGY 6AN Straight Push-Lock Hose Fitting is a better choice for a conventional inline connection.
What Matters Before You Order a Barbed Pipe Fitting
Start with the connection
The thread and barb must match the rest of your assembly. These fittings use a 6AN thread with 9/16-18 UNF sizing and a 3/8-inch barb, so your mating hardware and rubber fuel-line hose need to correspond. A fitting can look correct while still being the wrong size at one end.
Follow the intended hose path
Straight fittings suit uninterrupted runs, while 45- and 90-degree bodies change direction. A 180-degree fitting reverses the route entirely. Measure the available space and account for the angle before choosing, especially near engine components, brackets, and frame members.
Check material and sealing details
The barb side is intended for rubber fuel lines rather than every hose material. These 6061-T6 aluminum fittings use a push-lock connection, but clamps are still recommended to reinforce the seal. Confirm the hose material, thread size, bend angle, and number of connections your project actually requires.
Fitting Details That Matter Before Installation
Mistakes Worth Dodging
Don’t confuse the 6AN thread with the 3/8-inch barb; they serve opposite ends of the fitting. Rubber fuel-line hose is the supported barb-hose combination, and omitting the recommended clamp can weaken your installation security.
What Separates Premium From Basic
In this list, the useful differences are quantity and bend angle rather than a higher pressure rating. A four-piece straight set can simplify a multi-connection build, while the 45- and 90-degree fittings are worth choosing according to the space your hose route actually has.
Frequently Asked Questions
Are these barbed pipe fittings suitable for rubber fuel lines?
Yes, the 3/8-inch barb is intended specifically for rubber fuel-line hose. A different hose material may not retain the barb correctly, so check the hose specification before installation.
What does 6AN mean on these fittings?
The 6AN end has a 9/16-18 UNF thread, which is the measurement used to match the fitting to its threaded mating component. The opposite end is a 3/8-inch barb.
Are clamps necessary with a push-lock fitting?
Clamps are recommended to improve the seal between the barb and rubber hose. The push-lock connection secures the line, while the clamp adds reinforcement around the connection.
Which angle is easiest to route?
Straight fittings suit straight runs, and 45-degree fittings provide a moderate turn. A 90-degree fitting changes direction more sharply, while the 180-degree version creates a full return path.
What is the stated pressure and temperature range?
The fittings have a maximum working pressure of 1,500 PSI. Their stated temperature range extends from -40°F to 248°F.
Final Verdict
Your best fit depends on three practical details: a 6AN threaded end, a 3/8-inch barb for rubber fuel-line hose, and the angle your installation space requires. Straight fittings cover simple routes, the two- and four-piece sets handle grouped connections, and the 45-, 90-, and 180-degree bodies solve more specific routing problems. Match the connection before the package quantity, and your fuel-line build will be easier to plan and install.