Best Performance Fuel Water Separators in 2026

Attention:Please tighten the filter by yourself when installing it.Please fill the filter with fuel when installation.

The filter housing is coated with a durable electrostatically applied powder coating for superior finish quality.Remove water and particles down to 10 microns in size,ensures that fuel arrives at your engine clean and water-free with its advanced high-capacity filter media.Provides best protection to your engine and improve its performance.

This spin-on filter design is easy to replace and the reusable clear nylon collection bowl and features a self-venting drain for removing unwanted impurity and water.Tighten the valve,the water will not discharge.Release the valve,the water can be free to discharge.

【Engines Fitment&Replace OEM#】 Marine Fuel Filter Marine Fuel Water Separator with clear bowl s3213 Fits for Marine Outboard Motor Mercury. Replaces 35-60494-1, S3213, B32013, 18-7932-1, 18-7932, 18-7928-1, 18-7928, 35-809097, MAR-24563-03-00, 18-7919, 18-7919-1, 18-7922-1, 18-7922, 18-7853-1.

【FUEL FILTER PACKAGE INCLUDED】1×S3213 Marine fuel filter.

【Installation】No modification to the electrical system is required, plug-and-play, direct fit.Please always pre-fill clean fuel on the dirty side of the filter without opening the fuel cap.Do not reuse the old filter, it will cause great damage to the car engine. After installing the new filter, prime and start the engine, wait a few minutes, and then check for leaks.

Fitment:Gasoline Engine and Diesel Engine.Part Number: Replaces Racor S3240 R12T 120AT; Replaces Sierra 18-7987; Replaces RK10222 Gift：A free roll of teflon tape（Appropriate Teflon tape should be wrapped around the pipe thread during installation to ensure the reliability of its sealing）

Easy to replace:R12T disel fuel filter and gasoline fuel filter water separator is equipped with a self-draining drain to remove unnecessary dirt and water, the boat fuel filter design is easy to replace, and the reusable transparent nylon collection bowl.

Features:fuel water separator filter Upgraded version 4 micron filters are over 99% efficiency at removing particles as small as 4 microns.4 micron filters are recommended to protect sensitive inboard,sterndrive and outboard fuel injection systems.

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.

New upgrade: This product is an upgraded version of R12T. The R12T filter element is not removable, and the housing needs to be replaced at the same time as the replacement. The R12H filter element is detachable, and you only need to replace the internal filter element each time, which greatly saves your cost. Please note: The internal filter element requires a certain amount of effort to be pushed out.

Buyer Benefits: Two filter elements and two O-rings are given for free, so there are three filter elements and four O-rings in total. Package includes: 1 x R12H Fuel Water Separator complete combo, 2 x connection fittings, 2 x plugs, 2 x additional filter elements, 2 x additional O-rings.

Material Upgrade: For ships going to sea, iron products are very easy to be damaged due to the influence of seawater and sea breeze. The upgraded R12H adopts aluminum alloy material and plastic-sprayed processing technology as a whole, which effectively avoids the above-mentioned problems.

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

Replacement filter element which is totally self-contained and requires no messy and questionable canister cleaning; eliminates cartridge style filter back flushing and totally eliminates any chance of fuel system contamination

With the filter sealing system there are no housing seals or gaskets to dig out and no gaskets, o-rings or seals to leak or swell

The RF500M unique flow pattern increases filtration efficiency and provides the maximum flow and the heart of the FloMax system

【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

Professional, premium aftermarket replacement

Provides the performance and dependability you expect from ACDelco

Manufactured to meet expectations for fit, form, and function

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

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.

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.

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.