Best Inline Fuel Filters of 2026

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 21, 2026

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Inline fuel filters are an essential component of any vehicle's fuel system. They are designed to prevent harmful contaminants and debris from entering the engine, which can cause damage and reduce performance. These filters are typically installed in the fuel line between the fuel tank and the engine, where they effectively trap dirt, rust, and other particles before they can reach the fuel injectors. Inline fuel filters come in a range of sizes and styles to fit different vehicles and fuel systems, and they are generally easy to install and replace. Regularly replacing the filter can help ensure optimal engine performance and longevity.

At a Glance: Our Top Picks

EVIL ENERGY Inline Fuel Filter 10 Micron with 6AN 8AN 10AN Adapter&Bracket Clamp 50MM Universal Cover #TOP 1
EVIL ENERGY Inline Fuel Filter 10 Micron with 6AN 8AN 10AN Adapter&Bracket Clamp 50MM Universal
ftb score rating icon 9.8
Strongthium 691035 1/4" Inline Fuel Filter Kit Cover #TOP 2
Strongthium 691035 1/4" Inline Fuel Filter Kit
ftb score rating icon 9.7
FRAM G12 In-Line Fuel Filter Cover #TOP 3
FRAM G12 In-Line Fuel Filter
ftb score rating icon 9.5

Top 8 Inline Fuel Filters

EVIL ENERGY Inline Fuel Filter 10 Micron with 6AN 8AN 10AN Adapter&Bracket Clamp 50MM Universal

EV07153BK
Black
10 Micron
EVIL ENERGY Inline Fuel Filter 10 Micron with 6AN 8AN 10AN Adapter&Bracket Clamp 50MM Universal Cover
EVIL ENERGY Inline Fuel Filter 10 Micron with 6AN 8AN 10AN Adapter&Bracket Clamp 50MM Universal

EVIL ENERGY Fuel Filter is a universal filter with adapters for various applications. The aluminum alloy can and stainless steel filter element ensure durability. The tight seal o-ring prevents leaks. This fuel filter can be used for gasoline, diesel, E85, etc., capturing particles of 10 microns and above to protect your vehicle's fuel system. The removable design allows for easy cleaning or filter replacement, keeping your engine running smoothly.

What We Like
Universal Application
Durable Materials
Efficient Filtration
#TOP 2

Strongthium 691035 1/4" Inline Fuel Filter Kit

1/4 Fuel Filter Kit
yellow
2pcs
Strongthium 691035 1/4" Inline Fuel Filter Kit Cover
Strongthium 691035 1/4" Inline Fuel Filter Kit for Briggs and Stratton Engine Kawasaki 490190027 493629 84001895 80025019 Toro Craftsman MTD Kawasaki Snapper Lawn Tractor Generator 40 Micron

The Strongthium Fuel Filter Kit is designed as a high-quality replacement for small engine fuel lines with a 1/4 inch inner diameter. It meets OEM standards, ensuring reliable compatibility with many popular brands like Briggs and Stratton, Kawasaki, and Cub Cadet. This kit supports a wide range of equipment including lawn mowers, garden tools, and ATVs, making it versatile for various uses. Its clear design allows you to easily check when the filter needs replacing, helping you maintain your engine’s performance without guesswork. The package also includes fuel hose clamps for a secure and hassle-free installation.

What We Like
OEM standard quality
Wide brand compatibility
See-through design
Includes hose clamps
#TOP 3

FRAM G12 In-Line Fuel Filter

Multi
FRAM G12 In-Line Fuel Filter Cover
FRAM G12 High-Performance Replacement Inline Fuel Filter for Optimal Engine Protection, 5/6" Universal Gas Fuel Filter Replacement for Select Vehicle Model Years

The FRAM G12 In-Line Fuel Filter is a universal fit filter suitable for virtually all engine configurations. Changing the fuel filter will not only improve the engine's emissions, but it will also enhance its performance. The fuel filter is made of conventional stainless steel and conductive plastic materials.

What We Like
Improves engine emissions
Enhances engine performance
Universal fit for almost all engine configurations
#TOP 4

CocoMocart Gas Inline Fuel Filters with Magnet (Pack of 10)

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CocoMocart Gas Inline Fuel Filters with Magnet (Pack of 10) Cover
CocoMocart Gas Inline Fuel Filters with magnet for Kawasaki Kohler Briggs & Stratton John Deere 1/4 Inch x 5/16 Inch (Pack of 10)

Replace your small engine fuel filter with this high-quality aftermarket fuel filter, designed to fit many small tractors, lawn mowers, snowmobiles, generators, and more with 1/4" or 5/16" fuel lines. The fuel filter with magnet will fit many John Deere, Kawasaki, Kohler, Briggs, and Stratton engines that use this type of filter. The package includes 10 Pack of Universal 1/4" X 5/16" In-Line Fuel Filters, each with a magnet to attract and trap metal debris. Always check if the item fits before installation.

What We Like
Great price for filters
Multi-use applications
Good quantity for value
Compatible with local options
Effective for various machines
#TOP 5

Snwoygr 10 PCS Gas Inline Fuel Filters

InlineFuelFilter
Snwoygr 10 PCS Gas Inline Fuel Filters Cover
Snwoygr 10 PCS Gas Inline Fuel Filters with Magnet for Kawasaki, Kohler, John Deere, Lawn Mower, Small Engine, Third Generation Universal Replacement Fuel Filter for 1/4 IN and 5/16 IN

The Snwoygr Fuel Filters are designed for use with various small engines, including lawn mowers and generators. These high-quality inline filters come in 1/4-inch and 5/16-inch sizes, making them versatile for different applications. The built-in magnet captures metal impurities, ensuring cleaner gasoline that protects your engine from damage. Additionally, the thick filter paper features a dense pleating design that keeps dust and moisture out of the fuel, promoting stable engine performance. With these filters, you can enjoy smoother operation and longer-lasting equipment.

What We Like
Universal fit for various engines
Built-in magnet for metal removal
Dense pleated filter paper
Protects engine from impurities
#TOP 6

Deflife Universal Inline 3/8" Fuel Filters 2 Pack

TJ-C-067 9.5MM *2P
Deflife Universal Inline 3/8" Fuel Filters 2 Pack Cover
FUEL FILTERS INDUSTRIAL HIGH PERFORMANCE UNIVERSAL INLINE GAS FUEL LINE 3/8" 2 Pack

The Deflife Inline Fuel Filters are designed to fit 3/8" fuel lines, making them compatible with a wide range of gas-powered engines. These filters are made from high-quality materials, ensuring long-lasting durability even under tough conditions. You'll appreciate the clear casing, which lets you easily check the filter's condition and see if fuel is flowing properly, helping you know when it's time for a replacement. Plus, these universal filters work well for tractors, cars, trucks, motorcycles, and RVs, giving you versatile use in various vehicles and equipment.

What We Like
Fits 3/8" fuel lines
Durable, high-quality materials
Transparent casing for easy inspection
Universal use for many engines
Includes two filters per pack
#TOP 7

The Revenant Universal Gas Inline Fuel Filters with Magnet

The Revenant
TR-1125
The Revenant Universal Gas Inline Fuel Filters with Magnet Cover
Universal Gas Inline Fuel Filters with Magnet for Motorcycle ATV Quad Go Karts Accessories 3/16 Inch (Pack of 10)

The Revenant Fuel Filters are high-quality 3/16" gas inline fuel filters designed to fit various applications such as motorcycles, scooters, lawn mowers, and go karts. These filters come in a pack of 10 and are equipped with a built-in magnet that can absorb metal impurities, ensuring the purity of gasoline and protecting the engine. The dense pleats of the filter paper prevent impurities like dust and moisture from contaminating the fuel, thereby ensuring the stable operation of the engine. With The Revenant Fuel Filters, you can prevent the fuel system from blocking and enjoy the convenience of a clean and efficient engine.

What We Like
High-quality
Built-in magnet
Dense pleats filter paper
#TOP 8

ASSOTS AM116304 Fuel Filter for John Deere Kohler

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ASSOTS AM116304 Fuel Filter for John Deere Kohler Cover
AM116304 Fuel Filter 25 050 22-S for John Deere Kohler 120-436 GY20709 For 1/4" and 5/16" Fuel Line Replaces 71-5960 120-436 GY20709 38666 149-2206-01 21541500 98021

The ASSOTS Fuel Filter is designed to fit John Deere and Kohler engines, making it a reliable choice for maintaining your equipment. It works well with Kohler models 25 050 22-S, 25 050 03-S, and 25 050 08-S, ensuring compatibility with popular small engines. This filter fits both 1/4-inch and 5/16-inch inner diameter fuel lines, offering flexibility for different setups. Plus, it’s suitable for several John Deere part numbers like AM116304 and GY20709, so you can easily replace your old filter with confidence. With the ASSOTS Fuel Filter, you get a convenient and effective way to keep your engine’s fuel system clean and running smoothly.

What We Like
Compatible with Kohler engines
Fits multiple fuel line sizes
Works with John Deere parts
Suitable for small engines
Buying Guide Image

Factors to Consider when Choosing the Best Inline Fuel Filters

Filtration Efficiency

One of the most important factors to consider when selecting an inline fuel filter is its filtration efficiency. Look for filters that can effectively remove contaminants, such as dirt, debris, and rust particles, from the fuel. A high-quality fuel filter will have a fine mesh or multiple layers to ensure thorough filtration.

Flow Rate

Consider the flow rate of the inline fuel filter, as it can affect the performance of your vehicle. The filter should allow for smooth fuel flow without causing any restrictions or pressure drops. Check the manufacturer's specifications to ensure that the filter is suitable for your vehicle's fuel system.

Durability and Longevity

Choose an inline fuel filter that is made of durable materials, such as stainless steel or high-quality plastic, to withstand the harsh conditions of the fuel system. It should be resistant to corrosion and have a long lifespan. Additionally, look for filters that are easy to clean or replace to ensure hassle-free maintenance.

Compatibility

Ensure that the inline fuel filter you choose is compatible with your vehicle's make and model. Check the filter's specifications to ensure it can fit into your fuel line and has the appropriate connections. It's also worth considering if the filter is compatible with different fuel types, such as gasoline or diesel, depending on your vehicle's requirements.

Installation and Maintenance

Consider the ease of installation and maintenance of the inline fuel filter. Look for filters that come with clear instructions and necessary hardware for installation. Additionally, filters that are easy to access and clean or replace will make maintenance more convenient.

Frequently Asked Questions (FAQs)

1. What are the benefits of an inline fuel filter?

Inline fuel filters offer several benefits. They are the most common type of fuel filter and are easy to access for maintenance and replacement. They use a cartridge-style filter element to trap contaminants as fuel passes through, ensuring clean fuel reaches the engine.

2. Should an inline fuel filter be before or after the pump?

An inline fuel filter is typically installed after the fuel pump. If the filter provides filtration of very fine particles, it can be too restrictive to be placed before the pump.

3. Will a fuel filter help improve fuel efficiency?

Having a clean fuel filter can often lead to better gas mileage. Any impurities or contaminants in the fuel can negatively affect the engine's efficiency, so a clean fuel filter helps ensure a clean fuel supply for optimal performance.

4. What happens if you put an inline fuel filter in backwards?

Installing an inline fuel filter backwards can disrupt the flow direction and potentially cause issues with pressure differentials and restricted flow. It is important to follow the correct installation instructions to ensure proper functioning of the filter.

5. Should an inline fuel filter be mounted vertically or horizontally?

An inline fuel filter should be mounted vertically, with the fuel flow going upwards. This helps prevent the accumulation of vapor and allows any potential vapor to vent properly. The fuel lines should have a slight uphill angle to facilitate proper venting.

6. Which is better, a 10 or 100-micron fuel filter?

For inline pumps located outside the tank, a 100-micron pre-filter is recommended. A 10-micron filter is too restrictive on the inlet side, so a less restrictive filter is preferred.

7. Do I need to relieve pressure before changing a fuel filter?

Yes, it is important to relieve fuel pressure before changing a fuel filter. This can be done by removing the fuel pump fuse or relay and running the engine until it stalls. Afterward, the ignition should be turned off.

8. Do you have to prime an inline fuel filter?

In many cases, there is enough fuel in the rest of the line or carburetor to start the engine for a few seconds, allowing the filter to fill. Some Diesel engines have priming pumps, in which case priming should be done if necessary.

Editor's Notes

During our inline fuel filter research, we found 24 inline fuel filter products and shortlisted 8 quality products. We collected and analyzed 51,813 customer reviews through our big data system to write the inline fuel filters list. We found that most customers choose inline fuel filters with an average price of $11.60.

The inline fuel filters are available for purchase. We have researched hundreds of brands and picked the top brands of inline fuel filters, including EVIL ENERGY, Strongthium, Fram, CocoMocart, Snwoygr. The seller of top 1 product has received honest feedback from 2,074 consumers with an average rating of 4.9.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.