Best Performance Fuel Water Separators in 2026

Daisy
Last Updated: Feb 7, 2026

At a Glance: Our Top Picks for Performance Fuel Water Separators

iFJF 35-60494-1 Fuel Water Separating Filter 3/8 Inch NPT Port for Outboard Motor Mercury 35-60494-1 S3213 S3214 B32013 18-7932-1 18-7922 18-7932 18-7928-1 18-7928 18-7919 10 Micron Marine 35-809097
#TOP1
Ifjf 35-60494-1 Fuel Water Separating Filter 3/8 Inch
9.5
PM SCORE
Five Oceans Fuel Filter Marine Fuel Water Separator with Bowl, Thread Diameter 11/16" - 16UNC, Replaces# 35-60494-1, S3213, 18-7932-1, 1 Mercury, Racor, Universal -FO3665
#TOP2
Five Oceans Fuel Filter Marine Fuel Water Separator
7.4
PM SCORE
S3213 Marine Fuel Water Separator Complete Kit 3/8 Inch NPT Port for Marine Outboard Motor Mercury Replaces# 35-60494-1, S3213, 18-17928, 35-809097 Motor Boat Fuel Filter Kit 10 Micron B32013 18-7922
#TOP3
S3213 Marine Fuel Water Separator Complete Kit 3/8
5.6
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Performance Fuel Water Separators of 2026

Ifjf 35-60494-1 Fuel Water Separating Filter 3/8 Inch Npt Port For Outboard Motor Mercury 35-60494-1 S3213 S3214 B32013 18-7932-1 18-7922 18-7932 18-7928-1 18-7928 18-7919 10 Micron Marine 35-809097

IFJF
IFJF-WSFF01
3.60 X 3.60 X 7.68 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
iFJF Direct 9.89

Features

Attention:Please tighten the filter by yourself when installing it.

Features:10 micron filters are over 90% efficiency at removing particles as small as 10 microns.10 micron filters are recommended to protect sensitive inboard,sterndrive and outboard fuel injection systems.

Usage:Designed to trap the smallest particles and emulsified water from diesel.

Function:It contributes to clear particles protect fuel system.Well sealed.Perfect water fuel separating performance.

Water separating canister:High performance 3/8 NPT ports offer lower pressure drop rates.

#TOP2

Five Oceans Fuel Filter Marine Fuel Water Separator With Bowl, Thread Diameter 11/16" - 16Unc, Replaces# 35-60494-1, S3213, 18-7932-1, 1 Mercury, Racor, Universal -Fo3665

FIVE OCEANS
3666
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FIVE OCEANS / BARON USA LLC 9.78

Features

High-performance fuel-injected engines require ultimate water separation, fuel filtration, and maximum fuel flow

Five Ocean filter elements deliver all three of these critical performance factors and are engineered for today's stern drives, inboards, and 2-cycle and 4-cycle outboards

This See-Thru-Bowl Five Oceans filter is a Replacement for Mercury 35-809097, Racor S3213 & Universal

Clear Bowl Fitting diameter is 3/8 inches barb hose and Thread Diameter is 11/16 in. - 16UNC. Filtration of 10 microns

Maximun Flow Rate: 60gph. Feature: Reusable and See-Thru-Bowl. FIVE OCEANS, 40 Years Developing High-Quality Marine & Outdoor Products

#TOP3

S3213 Marine Fuel Water Separator Complete Kit 3/8 Inch Npt Port For Marine Outboard Motor Mercury Replaces# 35-60494-1, S3213, 18-17928, 35-809097 Motor Boat Fuel Filter Kit 10 Micron B32013 18-7922

AINIO
S3213
4.33 X 4.33 X 9.65 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
PANZI 5.05

Features

【Function】:This s3213 10 micron marine fuel filter water separator uses advanced filter media and has an efficiency of more than 92% in capturing the smallest particles and emulsified water in gasoline. Filters out dirt, rust and other particles in the fuel to ensure a stable and clean fuel flow to achieve the best engine performance

【Replacement parts】:Only suitable for marine outboard motors! Replace 35-60494-1, S3213, B32013, 18-7932-1, 18-7932, 18-7928-1, 18-7928, 35-809097, S3213, MAR-24563-103-18- 18-7919-1 , 18-7922-1, 18-7922, 18-7853-1. Please confirm the model before placing an order! Thanks~

【Notice】:This is a diesel and water separator. It cannot be used for gasoline and water separators. The frequency of water filtration or filter replacement depends on the degree of contamination in the fuel. Check or empty the collection bowl every day and replace the marine fuel filter every year, whichever comes first. Gasoline is extremely flammable and highly explosive under certain conditions. When replacing the filter element, be sure to stop the engine

【Design】: screw in filter design - screw in design makes it fast and simple to replace filter elements.

【Package includes】: As shown in the picture, it comes with 3/8 inch barb x 1/4 inch NPT brass fittings and a roll of PTFE threaded tapePlease wrap teflon tape around fittings thread to prevent leaks from these plugs A pair of work gloves 8* Clamp 3-month warranty and lifetime support. Please feel free to contact us for replacement, a truly worry free shopping experience:)

Fst Performance Rpm500 Flomax 500 Black Anodized -12 An Port Fuel Filter/Water Separator System

FST PERFORMANCE
RPM500
5.40 X 10.80 X 4.40 Inches
3.30 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Designed for marine use to provide superior fuel/water separation and fuel filtration at high fuel flow and using the same design and high efficiency filtration in the popular FloMax300; the RPM500 provides additional water and debris holding capacity

Highly efficient 3 micron filtration and water separation designed for use in gasoline, racing fuel, ethanol, and methanol in a wide variety of applications

Engineered for either suction or pressure side mounting for installation flexibility plus the multiport design allows unused fuel ports to function as a fuel system drain, regulator mount, fuel pressure gauge port and other fuel accessories

Burst pressure for this unit is 250 PSI and measurements are 8.0 inch height, 3.75 inch width and 5.0 inch depth; weighs only 45 ounces; features -12 AN ports that are ORB multi-directional; designed to handle over 2000 HP

Made of solid billet aluminum to eliminate porosity, leaking or air intrusion; exclusive EZMOUNT design allows easy mounting on a tube chassis or a surface mount; made in USA and backed by a full 60 day limited warranty

#TOP5

Marine Engine Fuel Line Water Separator Filter Kit With Clear Bowl And Plastic Head, Thread Diameter 11/16In-16Unc, 3/8In Barb Hose, For Mar-Fuelf-Il-Tr Fo3667

FIVE OCEANS
3667
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FIVE OCEANS / BARON USA LLC 9.78

Features

High-performance fuel-injected engines require ultimate water separation, fuel filtration, and maximum fuel flow.

Five Ocean filter elements deliver all three of these critical performance factors and are engineered for today's stern drives, inboards, and 2-cycle and 4-cycle outboards.

This See-Thru-Bowl Five Oceans filter is a Replacement for YAMAHA MAR-FUELF-IL-TR. It includes filter, bowl and mounting head.

Thread Diameter 11/16 in.-16UNC. Fitting 3/8in barb hose NPT. Cast Aluminum. Includes Two (2) connectors (11/16 in.-16UNC and 3/8 in. barb hose) and Two (2) Plugs (11/16 in.-16UNC).

Five Oceans filters have a 90% efficiency rate while maintaining fuel flow rates to meet the demands of modern high-performance engines. Filtration: 10 micron. Flow Rate: 90 gph.. FIVE OCEANS, 40 Years Developing High-Quality Marine & Outdoor Products

Ifjf R12H (R12T Upgrade) Fuel Water Separator Filter Element 10 Micron Only Replacement For Our Own R12H Assembly For Marine Or Automotive Replaces S3240 120At Npt Zg1/4-19

IFJF
FJ-R12H-LX
3.40 X 3.40 X 3.34 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
iFJF Direct 9.89

Features

Suitable for: Only suitable for our own R12H assembly, can replace S3240 R12T 120AT, 18-7987, RK10222. Filter element number: R12H-01.

Cost saving: The new R12H only needs to replace the filter element, which is affordable and saves your replacement cost. The original R12T filter element is not removable, and the housing needs to be replaced when the filter element is replaced.

High efficiency filtration: High-quality filter paper with excellent performance, with an efficiency of over 90% for removing particles as small as 10 microns. A 10 micron filter is recommended to protect sensitive inboard, stern drive, and outboard fuel injection systems. Designed to capture the smallest particles and emulsified water in diesel.

Replacement note: Because the rubber ring on the filter element makes the filter element tightly fit the inner wall of the housing, it takes a certain amount of effort to push out the old filter element.

Package includes: 1 x R12H filter element, 1 x O-ring.

Ifjf R12H (R12T Upgrade) Fuel Water Separator Filter Element 10 Micron Only Replacement For Our Own R12H Assembly For Marine Or Automotive Replaces S3240 120At Npt Zg1/4-19 (2Pcs)

IFJF
FJ-R12H-LX-2
3.40 X 3.40 X 3.34 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
iFJF Direct 9.89

Features

Suitable for: Only suitable for our own R12H assembly, can replace S3240 R12T 120AT, 18-7987, RK10222. Filter element number: R12H-01.

Cost saving: The new R12H only needs to replace the filter element, which is affordable and saves your replacement cost. The original R12T filter element is not removable, and the housing needs to be replaced when the filter element is replaced.

High efficiency filtration: High-quality filter paper with excellent performance, with an efficiency of over 90% for removing particles as small as 10 microns. A 10 micron filter is recommended to protect sensitive inboard, stern drive, and outboard fuel injection systems. Designed to capture the smallest particles and emulsified water in diesel.

Replacement note: Because the rubber ring on the filter element makes the filter element tightly fit the inner wall of the housing, it takes a certain amount of effort to push out the old filter element.

Package includes: 2 x R12H filter element, 2 x O-ring.

Top 10 performance fuel water separators Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Ifjf 3
Five Oceans 2
Ainio 1
Fst Performance 1

Top 10 performance fuel water separators Brands Pie Chart


We've carried out a comprehensive analysis of 685 reviews on performance fuel water separators, using our selection criteria to identify the best options in the automotive replacement parts. Our findings reveal that most customers typically select performance fuel water separators priced around $54.78, with top brands including ifjf, fst performance, carmocar, kipa, five oceans, ebely, wix, sierra international and aulday and ainio

Our team of expert editors reviewed these high-quality items and handpicked the top 7 performance fuel water separators for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the automotive replacement parts category. These include ifjf direct, amazon.com, carmocar, kipa2007, five oceans / baron usa llc, ebely, harvard marine and aulday direct and panzi .

We are dedicated to assisting our users in finding the right filters Products based on their needs, saving them considerable time when choosing which performance fuel water separators to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.