Skip to content Skip to navigation menu

SIERRA
21 Micron Replacement Filter Elements

Traps the smallest particles and emulsifies water from gasoline with 21-micron filter media. Epoxy coated inside and powder coated outside for corrosion resistance. Shrink-wrapped for rust protection.

Will not separate 2-cycle oil from gasoline. Do not use with diesel.

Product Models
Description WM Model # MFG Part # Availability Price Quantity  
21 Micron Replacement Filter Elements, for Mercury 35-8077172/35/35-802893Q, Yamaha ABB-FUELF-IL-TR (Short) 404931 18-7844
In stock online.

$11.49

Add to My List
21 Micron Replacement Filter Elements, for Mercury 35-802893Q, Yamaha ABB-FUELF-IL-TR (Long) 378481 18-7845
In stock online.

$11.49

Add to My List
21 Micron Replacement Filter Elements, for OMC 502905 381139 18-7846
In stock online.

$9.99

Add to My List

Traps the smallest particles and emulsifies water from gasoline with 21-micron filter media. Epoxy coated inside and powder coated outside for corrosion resistance. Shrink-wrapped for rust protection.

Will not separate 2-cycle oil from gasoline. Do not use with diesel.

Specs

West Advisor

The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.

REVIEW SNAPSHOT®

by PowerReviews
Sierra21 Micron Replacement Filter Elements
 
4.8

(based on 12 reviews)

Ratings Distribution

  • 5 Stars

     

    (9)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to use (5)
  • Easy to install (4)
  • Compact (3)
  • Good performance (3)
  • Reliable (3)

Cons

No Cons

Best Uses

  • Small boats (6)
  • Boating / sailing (4)
    • Reviewer Profile:
    • Advanced (6), Casual/ recreational (5)
    • Was this a gift?:
    • No (10)

Reviewed by 12 customers

Displaying reviews 1-10

Back to top

Previous | Next »

 
4.0

Engine sounds better already

By Deez

from Baltimore, MD

About Me Casual/ Recreational

Verified Buyer

Pros

  • Easy To Install
  • Easy To Use
  • Quality Construction

Cons

    Best Uses

    • Small Boats

    Comments about 21 Micron Replacement Filter Elements:

    Make sure you have a filter wrench.

    • Was this a gift?:
    • No
     
    5.0

    Product fit perfect!

    By KBM

    from Elyria, Ohio

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Easy To Install
    • Easy To Use
    • Quality Construction

    Cons

      Best Uses

      • Large Boats
      • Personal Watercraft
      • Pontoon Boats
      • Small Boats

      Comments about 21 Micron Replacement Filter Elements:

      Product works fine and fits my Volvo Penta charcoal motor just fine.

      • Was this a gift?:
      • No
       
      5.0

      Perfect!! Just what I needed, and priced just right!!

      By Ed

      from Riverside, CA

      About Me Advanced

      Verified Buyer

      Pros

      • Easy To Install

      Cons

        Best Uses

        • Small Boats

        Comments about 21 Micron Replacement Filter Elements:

        Just what I needed, and in stock!!

        • Was this a gift?:
        • No
         
        5.0

        Great way to manage your expenses

        By SemiInformed

        from Coastal NJ

        About Me Professional

        Pros

        • Good Performance
        • Value for a minor component

        Cons

          Best Uses

            Comments about 21 Micron Replacement Filter Elements:

            As long as you are using a separating filter, you are well protected. There are some who believe that we should buy the most expensive available and usually say "its cheap insurance" to justify it. Just know that there are things to spend your money on and there are things that you don't need to spend your money on. Filters are all good, some better than others, but they still filter out the damaging materials effectively. Stretch and spend your money on more important things and call it a victory by buying this filter and saving some cash for other things.

            • Was this a gift?:
            • No
             
            4.0

            Fuel seperator

            By flash

            from Destin Florida

            About Me Advanced

            Verified Buyer

            Pros

            • Good Performance
            • Quiet
            • Reliable
            • Weather Resistant

            Cons

              Best Uses

              • Small Boats

              Comments about 21 Micron Replacement Filter Elements:

              I replace my fuel separator here in Florida twice a year, with the heat and condensation water in the fuel can be a problem. I also only use ethanol free fuel. I have consistent sputter free operation on my older Johnson 150.

              Service and delivery comments:

              twice annually

              • Was this a gift?:
              • No
               
              4.0

              It's a filter

              By Jay

              from Ct

              About Me Advanced

              Verified Buyer

              Comments about 21 Micron Replacement Filter Elements:

              It's a filter. Who really knows if it's working. Time will tell.

              • Was this a gift?:
              • No
               
              5.0

              I would buy this again.

              By Dariel

              from Miami Fl

              About Me Casual/ Recreational

              Verified Buyer

              Pros

              • Quiet
              • Reliable

              Cons

                Best Uses

                • Small Boats

                Comments about 21 Micron Replacement Filter Elements:

                Awesome product and good people

                • Was this a gift?:
                • Yes
                 
                5.0

                Great product

                By JB

                from Miami

                About Me Casual/ Recreational

                Verified Buyer

                Pros

                • Easy to install

                Cons

                  Best Uses

                  • Boating

                  Comments about 21 Micron Replacement Filter Elements:

                  Easy install. Not messy

                  Service and delivery comments:

                  Great service at store

                  • Was this a gift?:
                  • No
                   
                  5.0

                  Great product

                  By Swh

                  from Vbv

                  About Me Advanced

                  Verified Buyer

                  Pros

                  • Compact Design
                  • Easy To Use

                  Cons

                    Best Uses

                    • Boating

                    Comments about 21 Micron Replacement Filter Elements:

                    Great easy to use

                    • Was this a gift?:
                    • No
                     
                    5.0

                    hope it helps

                    By Jeffy

                    from Wilmington, CA

                    About Me Advanced

                    Verified Buyer

                    Pros

                    • Compact Design
                    • Easy To Use
                    • Perfect fit

                    Cons

                      Best Uses

                      • Boating
                      • Personal Watercraft
                      • Sailboat

                      Comments about 21 Micron Replacement Filter Elements:

                      the old one was probably 10 years and restricting flow. Seems to run smooth now with the new one!

                      • Was this a gift?:
                      • No

                      Displaying reviews 1-10

                      Back to top

                      Previous | Next »