SPECIFICATIONS DESCRIPTION INSTALLATION GUIDE SHIPPING & RETURN VIDEOS & BLOGS REVIEWS

SPECIFICATIONS
DESCRIPTION
INSTALLATION GUIDE
SHIPPING & RETURN
VIDEOS & BLOGS
REVIEWS

Specification	Details
Brand	EVIL ENERGY
Product Type	Fuel Filter
Filtration Grades	10, 30, 40 or 100 Micron Options Available
Material	Aluminum Housing + Stainless Steel Filter Element
Adapter Sizes	• 2 × 6AN (9/16-18 UNF) • 2 × 8AN (3/4-16 UNF) • 2 × 10AN (7/8-14 UNF)
Fuel Compatibility	Gasoline, Diesel – NOT FOR E85
Fuel System Compatibility	Fuel-Injected (EFI) and Carbureted Systems
Seal Type	High-Grade O-Ring for Leak-Proof Connection
Flow Direction	Arrow-Marked for Proper Installation
Housing Length	• 10 Micron: 4.87 in • 30 Micron: 5.58 in • 40 Micron: 5.48 in • 100 Micron: 4.87 in
Housing Diameter	• 10 Micron: 1.96 in • 30 Micron: 2.27 in • 40 Micron: 2.27 in • 100 Micron: 1.96 in
OD	• 10 Micron: 1.25 in • 30 Micron: 1.42 in • 40 Micron: 1.42 in • 100 Micron: 1.25 in
ID	0.81 in on All Filters
Color Options	• 10 Micron: Black • 30 Micron: Black, Silver Black, Blue • 40 Micron: Black • 100 Micron: Black, Silver Black, Red
Mounting Bracket	Available with or without Bracket
Package	Universal Fuel Filter with 6AN, 8AN, 10AN Adapters
Not Included	• Fuel Line • AN Hose Ends • Chassis Mounting Fasteners

Compare Inline Fuel Filters

Find the fuel filter that matches your fuel line, filter stage and available space.

	AN Inline Fuel Filter	Two-Stage Inline Filter Kit	AN Billet Fuel Filter	Barb Billet Fuel Filter	3.5 Inch Fuel Filter	Barb Inline Fuel Filter
Price	From $23.99	From $67.99	From $19.99	From $19.99	From $45.99	From $35.99
Best For	One-filter AN fuel lines	Filtering before and after the pump	Compact AN fuel lines	Compact rubber hose lines	Pre-pump filtering in tight spaces	One-filter rubber hose lines
Connection	6AN, 8AN and 10AN	6AN, 8AN and 10AN	6AN, 8AN or 10AN	5/16", 3/8" or 1/2" Barb	6AN, 8AN and 10AN	5/16", 3/8" and 1/2" Barb
Micron Rating	10, 30, 40 or 100 Micron	100 + 10, 30 or 40 Micron	30 Micron	30 Micron	100 Micron	10, 30, 40 or 100 Micron
Filter Element	Stainless Steel	Stainless Steel	Sintered Bronze	Sintered Bronze	Stainless Steel	Stainless Steel
Housing Length	4.87–5.58 in	4.87–5.58 in	2.07 in	2.07 in	3.5 in	4.87–5.58 in
Housing Diameter	1.96–2.27 in	1.96–2.27 in	1.22 in	1.22 in	1.97 in	1.96–2.27 in
Adapter Kit	Included	Included	One size per filter	One size per filter	Included	Included
	Viewing now	Shop ›	Shop ›	Shop ›	Shop ›	Shop ›

DESCRIPTION

The EVIL ENERGY Inline Fuel Filter is a universal, serviceable filter for custom AN fuel lines. A stainless steel element, aluminum housing, 6AN, 8AN and 10AN adapters, and four micron ratings let one universal inline fuel filter fit different filter stages in carbureted and fuel-injected systems. NOT compatible with E85 fuel.

What Does an Inline Fuel Filter Do?

Cutaway of an inline fuel filter with stainless steel element, aluminum alloy housing, O-ring seal and fittings

Protects the Fuel System from Costly Damage

An in line fuel filter installs directly in the fuel line to trap rust, scale and debris before they reach the pump, injectors or carburetor. Unlike cheap plastic filters, this metal inline fuel filter pairs an aluminum fuel filter housing that withstands vibration and corrosion with a stainless steel fuel filter element that can be removed and cleaned.

Which Micron Inline Fuel Filter Do You Need?

Start with where the filter will sit in the fuel system. Finer filters belong after the pump, and coarser filters belong before it.

10 Micron	Fuel Injection, After the PumpThe fine filter stage for gasoline EFI, between the fuel pump and fuel rail.
30 Micron	Carburetor, After the PumpA finer choice for carbureted fuel lines between the pump and carburetor or regulator.
40 Micron	Carburetor, After the PumpA 40 micron fuel filter gives a carbureted fuel line a coarser post-pump stage with more margin against restriction.
100 Micron	Before the PumpThe coarse pre-filter stage between the tank and an external fuel pump.

Which AN Fuel Filter Adapter Fits Your Fuel Line?

6AN, 8AN or 10AN

This AN fuel filter includes two of each adapter, so the inlet and outlet can match the same line size or step between sizes.

6AN fuel filter setups (9/16-18 UNF) are common on street builds, while 8AN fuel filter (3/4-16 UNF) and 10AN fuel filter (7/8-14 UNF) setups suit larger custom lines. Many builders keep the pump inlet side larger to avoid restriction.

AN fuel filter with stainless element, aluminum housing and 6AN, 8AN and 10AN fittings with thread sizes

How to Install and Service an Inline Fuel Filter

Inline Fuel Filter Flow Direction

Flow direction matters. Install the filter with the arrow pointing toward the carburetor or fuel rail, or toward the pump inlet when it serves as a pre-filter.

High-Grade O-Ring Seal

Each fitting uses an O-ring for a leak-proof connection. Keep the seats clean, do not use thread sealant or PTFE tape on AN or ORB connections, and check for leaks before starting the engine.

O-ring on the inline fuel filter fitting provides a tight seal for fittings and end caps

Removable stainless steel inline fuel filter element, housing, spring and end caps

Reusable Stainless Steel Element

The stainless element can be cleaned and reused. Clean or replace it every 2,500 miles, and sooner with an old tank or dirty fuel.

Element Orientation

After cleaning, make sure the closed end of the element docks with the spring. The filter arrives pre-assembled correctly.

Closed end of the fuel filter element docks with the spring and open end faces outlet

Where Does an External Fuel Filter Go?

Fuel tank, 100 micron fuel filter, fuel pump and 10 micron fuel filter in an installation layout

On an electric pump system, the layout runs from fuel tank to 100 micron filter, fuel pump, then fine filter. An external fuel filter should stay away from exhaust heat and moving parts, with room to open the housing. An all-in-one 10 micron fuel filter kit adds a spare element and barb adapters. For an E85 build, choose the E85 fuel filter and PTFE line kit.

Who Uses These Inline Fuel Filters?

Inline fuel filter installed in engine bays and chassis on carbureted and EFI systems

Classic Car Restorations

Older Tanks and New Lines

An inline fuel filter between the pump and carburetor catches rust and debris from an older tank or newly built line.

Performance Engines

Upgraded AN Fuel Systems

AN adapters and four micron options suit custom plumbing on swaps and high-output builds.

Diesel Trucks

Added Particle Protection

Use this filter for added particle protection, while keeping the water separator and any required factory fine filter.

Marine and Agricultural

Check the Application First

Confirm hose, fittings and fuel flow for the machine. Gasoline boats also need parts that meet US Coast Guard fuel system rules.

Why Choose This Inline Fuel Filter?

EVIL ENERGY builds this inline fuel filter for car owners and enthusiasts who need one filter style they can match to their own fuel system.

Four Micron Ratings: Choose the fuel filter stage that fits the fuel system.
Six AN Adapters: Match 6AN, 8AN or 10AN fuel lines.
Reusable Element: Clean and reinstall the stainless steel element.
Optional Bracket: Add a bracket for a cleaner chassis or engine bay mount.

For additional information, please contact us at support@ievilenergy.com.

EVIL ENERGY related fuel system products

INSTALLATION GUIDE

Moderate Estimated Time: 0.5-1 hour

Tools Required

Combination wrench set
AN wrench set
Drain pan
Marker
Drill and drill bits (if required)
Safety glasses
Fuel-resistant gloves

Pre-Installation Checklist

Relieve fuel system pressure and disconnect the negative battery cable.
Confirm the correct 10-micron or 100-micron filter and required AN6, AN8, or AN10 fittings are available.
Identify the flow-direction arrow on the filter body.
Place an approved drain container under the old filter and choose a mounting position away from exhaust heat and moving parts.

Installation Steps

Disconnect the old filter fittings or clamps and remove the filter.
Install the selected AN6, AN8, or AN10 fittings as required; do not apply thread sealant or PTFE tape to AN/ORB connections.
Orient the new filter with its arrow pointing in the direction of fuel flow.
Secure the filter with the supplied mounting bracket and appropriate hardware.
Connect and tighten the fuel lines without overtightening AN fittings.
Prime the fuel system and inspect the filter, fittings, and hoses for leaks before starting the engine.

Post-Installation Verification

Verify the filter arrow points in the correct fuel-flow direction.
Confirm the filter bracket, fittings, and hoses are secure and clear of heat, sharp edges, and moving parts.
Prime the system and check for leaks before starting the engine.
Reinspect the filter after the road test and periodically thereafter.

Troubleshooting

Low fuel pressure: verify filter orientation and inspect for clogging or restrictions.
Fuel leak: turn the ignition OFF, clean spilled fuel, and tighten or replace the affected fitting or hose.
Pump noise or inlet restriction: inspect the upstream 100-micron filter and supply-line routing.

Maintenance

Inspect the filter and connections periodically and replace a clogged or damaged filter.
Recheck all fittings after the initial road test and after 50-100 km.

View Full Installation Guide →

SHIPPING & RETURN

Brand Summary

Policy	Details
Cancellation Policy	Orders can be canceled within 48 hours of placement. Refund processed in 3-5 business days.
Returns Policy	Returns accepted within 180 days. Full refund within 90 days; 15% fee for 90-180 days.
Non-Returnable Items	Only regular-priced items are eligible for refunds; sale items are non-refundable.
Refund Processing	If no refund received, check your bank/credit card. For ongoing issues, contact support@ievilenergy.com.

Return Reasons

Quality Issues: Provide photos/videos; we cover return shipping.
Wrong Item Ordered: Buyer covers return shipping; email within 30 days.
Change of Mind: Buyer covers return shipping; email within 30 days.
Shipping Damage: Inspect packages; do not sign for damaged items.
Incorrect Item Shipped: Contact within 7 days.

Price Protection Policy

Effective from August 25, 2024. Price drops within 7 days of purchase can be claimed.

Disclaimer

EVIL ENERGY reserves the right to interpret, modify, or terminate this policy in accordance with applicable laws and regulations.

If you need further information or assistance, feel free to ask!

VIDEOS & BLOGS

Product Videos

How Many Fuel Filters Does a 6.6 Duramax Have?

Most 6.6 Duramax pickups have one factory serviceable fuel filter. Some chassis cab, van, or aftermarket filtration setups may have more than one. The 6.6L Duramax engine, used in Chevrolet Silverado HD and GMC Sierra HD diesel trucks, relies on clean fuel ...

View Details

How Much Does a Fuel Filter Change Cost?

Learn about the cost of fuel filter replacement, signs of a clogged filter, and the importance of regular maintenance. Discover whether DIY or professional service is best for your car.

View Details

Fuel Filter vs. Oil Filter: Essential Differences You Must Know!

While both fuel filters and oil filters are critical gatekeepers of your engine’s longevity, they handle entirely different fluids and are completely non-interchangeable. The fuel filter acts as a food taster, straining microscopic rust and tank debris (1–1...

View Details

Car air intake upgrade guide banner displaying a carbon fiber performance intake tube connected to a high-flow air filter, throttle body, and intake manifold on a car engine.

What Intake Upgrade Should You Do First? Filter, Cold Air Intake, Throttle Body, Manifold, or Heads

Air intake modifications should strictly focus on eliminating the specific restriction currently limiting engine airflow, rather than blindly installing oversized components. For stock or mild street applications, the upgrade process should begin with basel...

View Details

DIY Guide cover for changing a 6.7 Powerstroke fuel filter, featuring a close-up of a vintage teal Ford truck grille with bold white and red instructional text.

How to Change 6.7 Powerstroke Fuel Filter: Complete DIY Guide

The 6.7 Powerstroke diesel engine utilizes a dual-filter system consisting of an under-chassis fuel/water separator and an engine-mounted primary filter. The replacement process requires a Motorcraft FD4625AA kit and basic tools like an 8mm socket. The most...

View Details

Is Your Fuel Filter Failing? Here’s How to Tell

Struggling with sluggish performance or stalling? Learn key signs of a bad fuel filter to enhance your car's efficiency and avoid costly repairs.

View Details

FUEL LINE FILTERS AND FITTINGS: THE ULTIMATE GUIDE

FUEL LINE FILTERS AND FITTINGS: THE ULTIMATE GUIDE All car owners know the significance of cleaner fuel engine lines. These fuel lines carry fuel from one point to another. However, fuel can bring many impurities that can damage the car in the long run. To ...

View Details

How to Change Your Car’s Fuel Filter

Table of Contents Understanding the Role of a Fuel Filter Identifying Signs of a Clogged Fuel Filter Tools and Preparations for Changing Your Fuel Filter Step-by-Step Guide to Changing Your Car's Fuel Filter Choosing the Right Fuel Filter for Your Vehicl...

View Details

REVIEWS

EVIL ENERGY Inline Fuel Filter with 6AN 8AN 10AN Adapter and Bracket Universal 10/30/40/100 Micron

EVIL ENERGY Inline Fuel Filter with 6AN 8AN 10AN Adapter and Bracket Universal 10/30/40/100 Micron

EVIL ENERGY Inline Fuel Filter with 6AN 8AN 10AN Adapter and Bracket Universal 10/30/40/100 Micron

Compare Inline Fuel Filters

What Does an Inline Fuel Filter Do?

Protects the Fuel System from Costly Damage

Which Micron Inline Fuel Filter Do You Need?