Top 10 Best Boat Fuel Water Separator

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we analyzed 55924 reviews before putting our recommendations for the Boat Fuel Water Separator. look out for the best Boat Fuel Water Separator. our suggestions include only the finest of them in this article. we tried to make it easy for you to select the best.

Best Boat Fuel Water Separator

Comparison Chart for Best Boat Fuel Water Separator

we analyzed 55924 reviews before putting our recommendations for the Boat Fuel Water Separator. We've compiled a list among the top models. We have considered feedback from people only who is a user of Boat Fuel Water Separator

NoProductScoreAction
1iFJF R12T Fuel Water Separator Marine 120AT NPT ZG1/4-19 Automotive Parts with Fitting -Complete Combo Filter Diesel Engine(Includes 2 fittings,2 plugs)9.8Buy On Amazon
2iFJF R12H (R12T Upgrade) Fuel Water Separator Marine Complete Combo - Replaces S3240 120AT NPT ZG1/4-19 Automotive Replacement Spin-on Filter Includes 2 Fittings 2 Plugs9.6Buy On Amazon
3Sierra 18-7945 10 Micron Replacement Fuel Water Seperator - Long9.4Buy On Amazon
4Sierra International 18-7982-1 Marine Fuel Water Separator Kit9.4Buy On Amazon
5Sierra International 18-7866 10 Micron9Buy On Amazon
6R12T Fuel Filter Water Separator Complete Kit - Marine SPIN-ON R12T Filter Replaces S3240 120AT NPT ZG1/4-19 Fit 3/8 Inch NPT Outboard Motors For Diesel Engine With Four Fittings8.6Buy On Amazon
7Fuel Filter Water Separator with 3/8" Barb x 1/4" NPT Fittings Replacement for Marine Outboard Motor Mercury Replaces# 35-60494-18.4Buy On Amazon
8iFJF 802893Q01 Fuel Water Separator Kit 10 Micron 18-7983-1 Filters for Replacing Mercury 35-807172 35-60494-1 18-7944 Marine 35-55501 35-57250 35-806771 35-802893T 35-802893Q ABB-FUELF-IL-TR8.4Buy On Amazon
9Marpac Marine Boat Fuel/Water Separator 7-08608.4Buy On Amazon
10S3213 Fuel Filter Marine Fuel Water Separator With Clear Bowl Replacement for Marine Outboard Motor Mercury Replaces# 35-60494-18.2Buy On Amazon

Table Of Content:

1. iFJF R12T Fuel Water Separator Marine 120AT NPT ZG1/4-19 Automotive Parts with Fitting -Complete Combo Filter Diesel Engine(Includes 2 fittings,2 plugs)

  • Attention:Please tighten the filter by yourself when installing it.
  • The filter housing is coated with a durable electrostatically applied powder coating for superior finish quality.
  • 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.
  • Filters are designed for high performance applications,and with flow rate of 15 GPH on the R12T model,your engine will perform better than ever with clean,water-free fuel.
  • For R12T Marine Fuel Filter/Water Separator complete assembly.

2. iFJF R12H (R12T Upgrade) Fuel Water Separator Marine Complete Combo – Replaces S3240 120AT NPT ZG1/4-19 Automotive Replacement Spin-on Filter Includes 2 Fittings 2 Plugs

  • New upgrade: This product is an upgraded version of R12T.
  • 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.
  • Material Upgrade: For ships going to sea, iron products are very easy to be damaged due to the influence of seawater and sea breeze.
  • Replace Part Number: S3240 R12T 120AT, 18-7987, RK10222.
  • Features: This spin-on filter design is easy to replace, and other parts except the filter element can be reused.

3. Sierra 18-7945 10 Micron Replacement Fuel Water Seperator – Long

  • Ethanol blended fuel absorbs more water and loosens more particulants than regular fuels
  • Proper filtration is required for every horsepower engine
  • Sierra’s 10 micron filters are over 90% efficient at removing particles as small as 10 micron
  • All filters flow at 90 GPH to feed even the hungriest motor
  • Fit Type: Universal Fit

4. Sierra International 18-7982-1 Marine Fuel Water Separator Kit

  • All filters flow at 90 GPH to feed even the hungriest motor
  • Prevent damage to sensitive inboard, sterndrive and outboard fuel injection systems
  • Sierra fuel water separators remove over 99.8% of emulsified water from your gasoline
  • Sierra’s 10 micron filters are over 90% efficient at removing particles as small as 10 micron
  • Material : Aluminum (Tall Filter)
  • Fit type: Universal Fit

5. Sierra International 18-7866 10 Micron

  • Fit Type: Universal Fit

6. R12T Fuel Filter Water Separator Complete Kit – Marine SPIN-ON R12T Filter Replaces S3240 120AT NPT ZG1/4-19 Fit 3/8 Inch NPT Outboard Motors For Diesel Engine With Four Fittings

  • R12T MATEIRAL: Original Italy Ahlstrom 3 layers filter paper, made of synthetic fiber, filter 99% water, impurities and contaminants at 4 micron, higher filter rating than 5 or 10 micron filter, protects your vehicle’s fuel system from contaminants, such as: dirt, rust, and paint particles;.
  • FITMENT: Filter for diesel engine.
  • LONGER LIFE SPAN: The imported material from Italy has a filtration efficiency of 99%, 3 layers,results in higher dust holding capacity than ordinary 1-2 layers, and longer life span, it needs to be replaced only after driving for an average of for 20,000-40,000 miles.
  • REPLACE PART NUMBER: Replaces S3240 R12T 120AT, Replaces Sierra 18-7987; Replaces RK10222;
  • CERTIFICATES AND WARRANTY: Germany TUV IATF16949, ISO14001, OHSAS18001; USA Standard: Passed SAE1839 Standard Society of Automotive Enginess; 6 Months warranty.

7. Fuel Filter Water Separator with 3/8″ Barb x 1/4″ NPT Fittings Replacement for Marine Outboard Motor Mercury Replaces# 35-60494-1

  • PERFORMANCE: Keeping a clean fuel filter in your vehicle can reduce damage done to your engine and other fuel delivery components.
  • PREMIUM QUALITY: Outstanding filtration matters, that is why our fuel water separator are crafted from high-grade filter medium that provide maximum filtration and minimal flow restriction.
  • LONG LIFE-SPAN: The outboard fuel filter has went through rigorously testing so that you will get a fairly reliable fuel filter, features anticaustic housing, multi-layer filter and superior sealing components to ensure leakage resistance and extreme durability under various operating conditions.
  • APPLICATION: Perfect for a variety of universal fuel applications, mostly used on outboard marine engines.
  • PACKAGE: It comes with 3/8-Inch Barb x 1/4-Inch NPT brass fittings and a roll of PTFE thread tape as pictures show.

8. iFJF 802893Q01 Fuel Water Separator Kit 10 Micron 18-7983-1 Filters for Replacing Mercury 35-807172 35-60494-1 18-7944 Marine 35-55501 35-57250 35-806771 35-802893T 35-802893Q ABB-FUELF-IL-TR

  • Attention:Please tighten the filter by yourself when installing it.
  • 10 micron filters are over 90% efficiency at removing particles as small as 10 microns.
  • Recommended to protect sensitive inboard,sterndrive and outboard fuel injection systems.
  • All filters flow 90 GPH to feed even the hungriest motor.
  • Replaces: Mercury 35-807172,35-60494-1,35-802893Q01,35-55501,35-57250,35-806771,35-802893T,ABB-FUELF-IL-TR.

9. Marpac Marine Boat Fuel/Water Separator 7-0860

10. S3213 Fuel Filter Marine Fuel Water Separator With Clear Bowl Replacement for Marine Outboard Motor Mercury Replaces# 35-60494-1

  • Engines Fitment&Replace OEM#】 Marine Fuel Filter Marine Fuel Water Separator with clear bowl s3213 Fits for Marine Outboard Motor Mercury.
  • FUEL FILTER PACKAGE INCLUDED】1×S3213 Marine fuel filter.
  • Installation】No modification to the electrical system is required, plug-and-play, direct fit.
  • Quality materials】Original Italy 3 layers filter paper, made of synthetic fiber, filters the impurities in the fuel and protects the fuel pump nozzle, cylinder liner and piston ring, greatly reducing wear and tear and reducing fuel consumption.
  • Quality Assurance】You can enjoy a 12-month warranty in our shop.

How To Choose The Best Boat Fuel Water Separator

Does the thought of finding a great Boat Fuel Water Separator stress you out? Has your mind been juggling between choices when it comes to buying Boat Fuel Water Separator in general, specifically regarding which model to choose?
If that’s the case, know that you’re not alone. Many people find it tough to buy the perfect Boat Fuel Water Separator for themselves. We understand the stress associated with the buying process!

Since you’re here, you are obviously curious about Boat Fuel Water Separator. You’ve been bombarded with information, so you need to find a reputable source with credible options before you make any decisions on which product would be best for your needs.

There are many sources that’ll provide you with that information- buying guides or ratings websites, word-of-mouth testimonials from friends or family members, online forums where users share their personal experiences, product reviews specifically found all over the internet and YouTube channels. Only thorough research will ensure that you get the right product.

But that’s not always easy, right? That's why we've taken time to compile a list of the best Boat Fuel Water Separator in today's market, on your behalf, so that there will be no more worries for you.

How did we come up with the list, you ask? How did we create this buying guide?

  • First, our algorithms collected as much information available about these products from trusted sources.
  • We employed both Artificial Intelligence and large data volume to validate all collected information.
  • Then our AI ranked them on their quality-to-price ratio using industry-standard criteria that let us pick the best Boat Fuel Water Separator currently on the market!
The products aren’t chosen randomly. We consider several criteria before assembling a list. Some of the criteria are discussed below-

  1. Brand Value: What happens when you go for a not-so-reputable brand just because the price seems cheap? Well, the chance of getting a short-lasting product goes higher. That’s because the renowned brands have a reputation to maintain, others don’t.


Top Boat Fuel Water Separator brands try to offer some unique features that make them stand out in the crowd. Thus hopefully, you’ll find one ideal product or another in our list.

  1. Features: You don’t need heaps of features, but useful ones. We look at the features that matter and choose the top Boat Fuel Water Separator based on that.
  2. Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products of higher specifications, but with the right balance.
  3. Customer Ratings: The hundreds of customers using the Boat Fuel Water Separator before you won’t say wrong, would they? Better ratings mean better service experienced by a good number of people.
  4. Customer Reviews: Like ratings, customer reviews give you actual and trustworthy information, coming from real-world consumers about the Boat Fuel Water Separator they used.
  5. Seller Rank: Now, this is interesting! You don’t just need a good Boat Fuel Water Separator, you need a product that is trendy and growing in sales. It serves two objectives. Firstly, the growing number of users indicates the product is good. Secondly, the manufacturers will hopefully provide better quality and after-sales service because of that growing number.
  6. Value For The Money: They say you get what you pay for. Cheap isn’t always good. But that doesn’t mean splashing tons of money on a flashy but underserving product is good either. We try to measure how much value for the money you can get from your Boat Fuel Water Separator before putting them on the list.
  7. Durability: Durability and reliability go hand to hand. A robust and durable Boat Fuel Water Separator will serve you for months and years to come.
  8. Availability: Products come and go, new products take the place of the old ones. Probably some new features were added, some necessary modifications were done. What’s the point of using a supposedly good Boat Fuel Water Separator if that’s no longer continued by the manufacturer? We try to feature products that are up-to-date and sold by at least one reliable seller, if not several.
  9. Negative Ratings: Yes, we take that into consideration too! When we pick the top rated Boat Fuel Water Separator on the market, the products that got mostly negative ratings get filtered and discarded.
These are the criteria we have chosen our Boat Fuel Water Separator on. Does our process stop there? Heck, no! The most important thing that you should know about us is, we're always updating our website to provide timely and relevant information.

Since reader satisfaction is our utmost priority, we have a final layer of filtration. And that is you, the reader! If you find any Boat Fuel Water Separator featured here Incorrect, irrelevant, not up to the mark, or simply outdated, please let us know. Your feedback is always welcome and we’ll try to promptly correct our list as per your reasonable suggestion.

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