Marine Fuel Filters

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Big Savings On Fuel Filters!
Seasense In-Line Fuel Filter
Seasense In-Line Fuel Filter
Your boat engine will operate at peak performance when you install the SeaSense In-Line Fuel Filter. This universal in-line filter protects your …
Only $7.78
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List Price:$9.69
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Big Savings On Fuel Filters!
Fuel Filter / Water Separator
Fuel Filter / Water Separator
Ensure effective functioning of the fuel pump without troublemaking solid contaminants and water by fixing the SeaSense Fuel Filter / Water …
Only $22.59
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List Price:$28.39
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Big Savings On Fuel Filters!
Sierra Inline Fuel Filters
Sierra Inline Fuel Filters
Did you know even the smallest of dust particles and rust can damage your boat engine? Protect the “heart” of your water craft with the …
Starting at $6.76
List Price:$9.24
In stock

Big Savings On Fuel Filters!
Mercury/Mariner Fuel Filters
Mercury/Mariner Fuel Filters
Replace the damaged and worn out fuel filters in your boat with the Sierra Fuel Filter Mercury/Mariner. These are high quality filters that are …
Starting at $5.42
List Price:$7.39
In stock

Big Savings On Fuel Filters!
Johnson/Evinrude Fuel System
Johnson/Evinrude Fuel System
Contaminates like water and dirt get into fuel lines, causing reduction in the efficiency of pumps. Fuel filters ensure that these pollutants do not …
Only $7.43
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List Price:$10.19
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Sierra Clearview Fuel Filter Kit
Sierra Clearview Fuel Filter Kit
Ensure that the fuel lines are free from contamination when you use the Sierra Clearview Fuel Filter Kit. The clearview body of the fuel filter …
Starting at: $5.43
List Price:$6.45
In stock

Big Savings On Fuel Filters!
Yamaha Fuel Filters
Yamaha Fuel Filters
For proper functioning of your boat's pump, it is highly essential that you have a check on its filtration system. Damaged fuel filters will not …
Starting at $6.11
List Price:$8.09
In stock

Big Savings On Fuel Filters!
200 Series Diesel Spin-On Filter / Water Separator (Racor)
200 Series Diesel Spin-On Filter / Water Separator (Racor)
The 200 series fuel filter/water separators feature a Spin-On, high capacity Aquabloc ® II replaceable filter element which separates water&# …
Starting at $149.48
List Price:$182.59
In stock

Big Savings On Fuel Filters!
Diesel Spin-On Series Replacement Element (Racor)
Diesel Spin-On Series Replacement Element (Racor)
Both inboard and outboard engines require clean fuel for efficient and powerful operation. A fuel line filter is therefore necessary to filter out …
Starting at $17.73
List Price:$21.79
In stock

Big Savings On Fuel Filters!
400 Series Diesel Spin-On Filter / Water Separator (Racor)
400 Series Diesel Spin-On Filter / Water Separator (Racor)
All 400 Series spin-on fuel filter/water separators feature a hand (palm) operated fuel priming pump which simplifies service procedures. These …
Only $247.86
List Price:$303.69
In stock

Big Savings On Fuel Filters!
In-Line Gasoline Fuel Filter (Racor)
In-Line Gasoline Fuel Filter (Racor)
Today's high performance gasoline engines require clean, dry fuel, and Racor's in-line gasoline filters meet that need. Anodized diecast …
Only $97.38
List Price:$119.59
In stock

Big Savings On Fuel Filters!
Turbine Series Diesel Fuel Filtration - Dual (Racor)
Turbine Series Diesel Fuel Filtration - Dual (Racor)
Switch to a new filter without shutting down! A single valve on all of the double-manifold MAX models isolates one filter/separator for service while …
Starting at $1008.35
List Price:$1186.29
In stock

Big Savings On Fuel Filters!
100 Series Diesel Spin-On Filter / Water Separator (Racor)
100 Series Diesel Spin-On Filter / Water Separator (Racor)
The Racor 100 Series features a variety of compact sizes to fit the most cramped engine compartments. All units feature 1/4"-18 NPTF inlet and outlet …
Starting at $101.46
List Price:$124.49
In stock

Big Savings On Fuel Filters!
Parfit™ Gasoline Filter (Racor)
Parfit™ Gasoline Filter (Racor)
The PFF5510 gasoline fuel filter/water separator replaces standard fuel filters. It fits these popular engine applications with it's 11/16"-16 center …
Only $7.25
List Price:$8.89
In stock

Big Savings On Fuel Filters!
Turbine Series Diesel Fuel Filtration - Single (Racor)
Turbine Series Diesel Fuel Filtration - Single (Racor)
Turbine series filter assemblies are designed to be installed on the vacuum side of the fuel transfer pump for best efficiency and protect precision …
Starting at $236.60
List Price:$290.19
In stock

Big Savings On Fuel Filters!
Gasoline Spin-On Series Fuel/Water Separator (Racor)
Gasoline Spin-On Series Fuel/Water Separator (Racor)
Spin-On series filters these filters are designed for high performance applications, and with flow rates between 30 and 120 GPH your engine will …
Starting at $90.47
List Price:$110.99
In stock

Seasense Fuel/Water Canister
Seasense Fuel/Water Canister
Pumps require water and fuel separator filter to eliminate contamination from water. An old and worn out filter can cause problems in your pump and …
Starting at: $6.56
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List Price:$7.49
In stock

Seasense In-Line Fuel Filter Replacement
Seasense In-Line Fuel Filter Replacement
Affirm the safety of your fuel systems with the SeaSense In-Line Fuel Filter Replacement. This universal in line replacement filter prevents …
Your price: $4.72
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List Price:$5.39
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Water Separating Fuel Filter Kit
Water Separating Fuel Filter Kit
Fuel water separator filter with bracket. Replaces 35-60494A4. Includes, 18-7845 filter, 18-7853 bracket. Not to be used on 1992 GenII 4.3L and 4.3LX …
Starting at: $29.99
List Price:$39.16
In stock

Clear Site Water Separating Fuel Filter Canister Only
Clear Site Water Separating Fuel Filter Canister Only
Extend the fuel filter's life time by using Clear Site Water Separating Fuel Filter Canister. This canister protects the filter from water and other …
Your price: $23.06
List Price:$26.49
In stock

Moeller In-Line Fuel Filter
Moeller In-Line Fuel Filter
The Moeller In-Line Fuel Filter effectively traps dirt and other metallic particles in the fuel line. By removing such unwanted debris, the filter …
Starting at: $5.72
In stock

Moeller Clear View In-Line Fuel Filter
Moeller Clear View In-Line Fuel Filter
The Moeller Clear View In-Line Fuel Filter efficiently traps dirt particles and other metallic pieces to ensure the fuel that reaches the engine is …
Starting at: $9.22
List Price:$9.29
In stock

Replacement Elements & Element
Get the Sierra Bowl O-Ring for replacing the old O-ring in the collection bowls. This O-ring perfectly fits Sierra standard metal and AquaVue™ …
Your price: $7.31
In stock

Filter Kit - 10 Micron 2 filters - Marpac
Filter Kit - 10 Micron 2 filters - Marpac
* Exclusive MarPlate filter head material increases corrosion protection * High flow filter head designed with 3/8 NPT ports * 10 Micron filtration …
Your price: $43.66
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List Price:$45.98
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Replacement Cannister - Marpac
Replacement Cannister - Marpac
* For all 2 & 4 Cycle engines * High Efficiency 10 Micron Media filters out 99% of water and 98% of contaminates * Maximum Media surface area for …
Your price: $25.63
List Price:$26.98
In stock

Racor Inside Kit with Composite Head - Marpac
Racor Inside Kit with Composite Head - Marpac
* For all 2 & 4 Cycle engines * High Efficiency 10 Micron Media filters out 99% of water and 98% of contaminates * Maximum Media surface area for …
Your price: $66.47
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List Price:$69.98
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MarPlate Fuel/Water Separator Kit - Marpac
MarPlate Fuel/Water Separator Kit - Marpac
* Exclusive MarPlate filter head material increases corrosion protection * High flow filter head designed with 3/8 NPT ports * 10 Micron filtration …
Your price: $32.26
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List Price:$33.98
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Replacement Fuel/Water Separator Clear Bowl w/Viton O Ring - Marpac
Replacement Fuel/Water Separator Clear Bowl w/Viton O Ring - Marpac
* For all 2 & 4 Cycle engines * High Efficiency 10 Micron Media filters out 99% of water and 98% of contaminates * Maximum Media surface area for …
Your price: $28.48
List Price:$29.98
In stock

Aluminum Filter Bracket, 3/8" Ports - Marpac
* Universal style fits filters with 11/16 threads * 3/8 ports for maximum fuel flow * Corrosion resistant, light weight, MarPlated aluminum
Your price: $26.57
List Price:$27.98
In stock

10 Micron Fuel/Water Separator kit w/Stainless Steel Head - Marpac
10 Micron Fuel/Water Separator kit w/Stainless Steel Head - Marpac
* Stainless steel filter head delivers corrosion resistance * High flow filter head design with 3/8 NPT ports * 10 Micron filtration ensures fuel …
Your price: $66.47
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List Price:$69.98
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Fuel/Water Separator w/clear bowl - Marpac
Fuel/Water Separator w/clear bowl - Marpac
* For all 2 & 4 Cycle engines * High Efficiency 10 Micron Media filters out 99% of water and 98% of contaminates * Maximum Media surface area for …
Your price: $56.01
List Price:$58.98
In stock

Fuel/Water Separator 10 Micron w/composite head - Marpac
Fuel/Water Separator 10 Micron w/composite head - Marpac
* Composite filter head eliminates corrosion * High flow filter head designed with 3/8 NPT ports * 10 Micron filtration ensures fuel arrives at the …
Your price: $28.48
List Price:$29.98
In stock

63 results 1 of 2 pages
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Fuel Filters How-To's

The Real Facts About Fuel Water Separating Filters (Video)

Video presentation on the difference between the Mallory water gas separators and other competitors. - Presented by Mallory Marine ... read more



Video Transcript

Hi, I’m Jim Self from Mallory Marine. Mallory Marine continues to lead the filtration market with some of the highest quality marine filters in the business. Their leadership began when we came out with our first ten micron water separator. One of the first ones in the marine marketplace.

Due to the popularity, some of our competitors have come out with their own ten micron marine filters, and tried to discredit the quality of ours versus theirs with some misleading claims.

Their new 10 micron gas water separator filter is superior due to their larger filter element and more filter media. Their claim would be completely accurate if we are talking about oil filters, but we’re not. Gas water separators are designed using different principles for different intended functions.

Filtration technology is vastly different when comparing gas water separators to oil filters. With a gas water separator you want to have enough filter media here to not impede the gas flow when maximizing your water hold capacity. Remember, the purpose of this is to separate water from the gas.

No filter media will completely block water. The key to the design is to prevent water from coming in constant contact with the filter media as long as possible. To prolong service life, and maximize your water hold capacity.

With our competitor’s filter design the element sits much lower in the canister and is going to come into contact with the water much sooner. Which is going to allow water to pass through into the marine gas system.

With our marine filter design we have twice the water holding capacity and a much longer service life.

Don’t be fooled by our competitors misleading claims.

Mallory features superior filtration and water holding capacity; Holds 2 times more water before coming in constant contact with the filter media; High efficiency 10 micron filter media; More than 90% efficiency at 10 micron particle removal; Superior resistance to water permeation; 90 plus gallons per hour gas flow; Meets ISO10088 and USCG Title 33 CFR183.590 fire test requirements; And is approved for use with all ethanol blended gas.

No matter what your marine filtration needs are, Mallory has a wide variety of options, from our drainable, visible, high capacity, stand water gas separators available with aluminum powder coated bracket and three sixteenths stainless steel.

For more information on Mallory products, please go to our website at www.mallorymarine.com.
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marine fuel filters

Keeping Marine Fuel Clean (Video)

How to keep your gas clean, presented by Fishing World. ... read more



Video Transcript

Outboard engines like this Honda Marine obviously need gas to run. When you mix petrol with water, some problems can occur. You need to understand how these things can be dealt with and how to prevent them.

The first thing I would like to talk about is ethanol blended gas. It stays still a few cents cheaper than most petrol. While these marine engines can run on ethanol blended gas with no problems at all, it is probably not a great idea to fill your boat up with ethanol gas because: A, they are hydroscopic. That means they actually attract water; and B, they can cause some problems with some types of marine gas tanks and also some types of rubbers in your gas lines and so on. I probably recommend you stick with your normal unleaded or premium petrol for your outboard marine engine.

The other thing to think about with gas is that water in gas can cause really big problems with your marine engine. And it is a fact of life that when you are on the water in a boat, you are going to sometimes get some sort of water in your gas. The way to deal with that is by installing the proper type of marine gas filter.

This one here is a great example. It has a glass bowl down here so you can see that any water that comes through the filter is deposited into this glass bowl. And then you could drain it off.

It is a really good idea to mount your marine gas filter in a great spot like this where it is easy accessed. The Boat guys have done a fantastic job mounting this gas filter somewhere you can readily see what is going on. And you should check it every time you go out. If there is any water at the bottom, you can easily see the water. It looks like a sort of a little greasy pool there at the bottom. Sometimes it is mucking it. You simply dry it out in a container and then dispose of it in the proper way.

Engines like this have also got a couple of other fuel filters in them. They are called inline fuel filters and they are basically the last line of protection for your engine. These filters are located in here. If any water gets from here that goes into your engine, these gas filters will hopefully get it.

These they change in an annual basis when you take your engine in for a service. It is really important to make sure that your fuel filters are changed on an annual basis. You check them regularly, you drain off any excess water, you get these guys service once a year and replaced.

Other ways you can minimize the risk of water in your gas is by making sure that your marine gas tank is full before you stow your boat. What happens, when your gas tank is half full or three-quarters full and you put your boat away for a week or two before your next fishing trip, is that sometimes moisture-laden air can be drawn in through the breathers. And what happens then is that the moisture in that air turns into water droplets that goes into your gas and can cause big problems.

If you fill your tank up so that it is right full. That means is that there is only a very small amount of air or possibly no air at all can get in and deposit any water. That is a really good practice every time you have a day out. Put the boat back on the trailer, get past the surveyor, fill her up, and you can store it. And you know you are going to minimize that risk of water in your gas.
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About Fuel Filters

Change Fuel Filters Regularly


If you've decided it is time to change or clean the gas filter, there are a couple of basic types which are all easily serviced or replaced. Most motors utilize some form of an inline filter either between the gas tank and pump or between the pump and carburetor(s) or gas injection vapor separator tank.

Some inline filters are solid metal or clear plastic housings which are clamped in the middle of two gas supply hoses. This style is easily removed and replaced by undoing the clamps and carefully pulling the hoses free of the filter inlet and outlet nipples.

Other inline filters consist of a 2 piece plastic or metal housing where a gas filter bowl can be removed from a filter cap. The bowl often threads into position or is secured by a knurled knob which can be loosened by hand in order to remove the bowl. Inside the bowl or cap of this style filter you'll find a removable filter screen. If the screen is not damaged it can be rinsed in solvent and air dried (or VERY carefully blown dry using low-pressure compressed air). When in doubt, this type of filter screen is easily and inexpensively replaced.


Before checking the gas pump, make sure you've got clean gas filter/water separators. Finally, many boats and some motors are rigged using a disposable spin-on gas filter or fuel filter and water separator. These filters resemble automotive oil filters and are removed or installed in exactly the same fashion. Often you'll want a strap or cap wrench for removal, as they tend to get stuck in place after a season's use. Once unthreaded, you'll normally find a small rubber gasket which again looks just like the gasket on an oil filter. Before installing a replacement spin-on gas filter, be sure to lubricate the rubber gasket with a small dab of engine oil (again, just like with a spin-on oil filter) to ensure a good seal and to help make sure the filter comes off with ease next time you need to replace it.

iboats.com carries an extensive line of gas filters and water separators.