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WEST MARINE
High-Viscosity Lower Unit Lube

Ideal for modern outboard & sterndrive lower units.

  • Meets or exceeds API MT-1, GL-5 and MIL-2105D ratings
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
High-Viscosity Lower Unit Lube - 1 Quart 3704590 3704590
In stock online.

$13.99

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High-Viscosity Lower Unit Lube - 10 oz. Tube 3704608 3704608
In stock online.

$7.79

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Ideal for modern outboard & sterndrive lower units.

  • Meets or exceeds API MT-1, GL-5 and MIL-2105D ratings

Specs

West Advisor

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REVIEW SNAPSHOT®

by PowerReviews
West MarineHigh-Viscosity Lower Unit Lube
 
4.4

(based on 10 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (0)

90%

of respondents would recommend this to a friend.

Pros

  • Good performance (6)
  • Protects well (3)

Cons

No Cons

Best Uses

  • Small boats (5)
  • Engine (4)
  • Personal crafts (3)
    • Reviewer Profile:
    • Advanced (4), Beginner (3)
    • Was this a gift?:
    • No (9)

Most Liked Positive Review

 

Solid product

I have been using this for a few years now and it holds up just as well as the name brand oils but at a more reasonable price. I use it in a 115...Read complete review

I have been using this for a few years now and it holds up just as well as the name brand oils but at a more reasonable price. I use it in a 115 Yamaha outboard and it has not let me down yet.

VS

Most Liked Negative Review

 

It's a ok lube job

It's OK it's all right it does the job

It's OK it's all right it does the job

Reviewed by 10 customers

Displaying reviews 1-10

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2.0

It's a ok lube job

By Captain Albert

from Hollywood Florida

About Me Advanced

Verified Buyer

Pros

  • Good Performance

Cons

  • Poor Design

Best Uses

  • Small Boats

Comments about High-Viscosity Lower Unit Lube:

It's OK it's all right it does the job

  • Was this a gift?:
  • No
 
5.0

Saved me $1500

By Sean

from Melbourne FL

About Me Casual/ Recreational

Verified Buyer

Pros

  • Good Performance

Cons

    Best Uses

      Comments about High-Viscosity Lower Unit Lube:

      Put in in my lower unit and ran it once. Drained it and saw it was milky. Took my engine to change lower unit seals and saved me from having to buy a $1500 lower unit for running with water in it.

      • Was this a gift?:
      • No
       
      5.0

      Great product

      By 2D

      from Muskegon, MI

      About Me Advanced

      Verified Buyer

      Pros

      • Good Performance
      • Quiet
      • Reliable
      • Weather Resistant

      Cons

        Best Uses

        • Small Boats

        Comments about High-Viscosity Lower Unit Lube:

        Did the job

        • Was this a gift?:
        • No
         
        5.0

        Very good product I would definitely recommend it!!!

        By Making it reel

        from Taylor Michigan

        About Me Beginner

        Verified Buyer

        Pros

        • Good Performance
        • Quiet
        • Reliable
        • Weather Resistant

        Cons

          Best Uses

          • Large Boats
          • Personal Crafts
          • Small Boats

          Comments about High-Viscosity Lower Unit Lube:

          Very simple to use and makes it easy. Saved a lot of money doing it myself and will save even more in the future, thank you for carrying it!!!

          • Was this a gift?:
          • No
           
          4.0

          Lube fit the requirements of my old Marriner.

          By Jon

          from Annandale VA

          About Me Professional

          Verified Buyer

          Pros

          • Good Performance

          Cons

            Best Uses

            • Personal Crafts
            • Small Boats

            Comments about High-Viscosity Lower Unit Lube:

            No issues replacing old lube with this product.

            • Was this a gift?:
            • No
             
            4.0

            The Lower Dribe unit lubricant works wondering in my 8 hp.

            By ChazP

            from Jacksonville, FL

            About Me Advanced

            Verified Buyer

            Pros

            • Good Performance

            Cons

              Best Uses

              • Large Boats
              • Personal Crafts
              • Small Boats

              Comments about High-Viscosity Lower Unit Lube:

              The fact that the bottle comes with a nipple is a big advantage. West Marine always has what I need.

              • Was this a gift?:
              • No
               
              5.0

              great product

              By juan

              from ruskin

              About Me Beginner

              Verified Buyer

              Pros

              • Protects Well

              Cons

                Best Uses

                • Engine

                Comments about High-Viscosity Lower Unit Lube:

                Boat work great after I used it

                • Was this a gift?:
                • No
                 
                5.0

                Hi

                By Erik

                from Shirley

                About Me Beginner

                Verified Buyer

                Pros

                • Easy to Use

                Cons

                  Best Uses

                  • Engine

                  Comments about High-Viscosity Lower Unit Lube:

                  Hi

                  • Was this a gift?:
                  • No
                   
                  4.0

                  Solid product

                  By CC owner

                  from Knoxville, TN

                  About Me Advanced

                  Verified Buyer

                  Pros

                  • Protects Well

                  Cons

                    Best Uses

                    • Engine

                    Comments about High-Viscosity Lower Unit Lube:

                    I have been using this for a few years now and it holds up just as well as the name brand oils but at a more reasonable price. I use it in a 115 Yamaha outboard and it has not let me down yet.

                    • Was this a gift?:
                    • No

                    (1 of 2 customers found this review helpful)

                     
                    5.0

                    Great value!

                    By Rb

                    from Largo, fl

                    About Me Casual/ Recreational

                    Verified Reviewer

                    Pros

                    • Easy to Use
                    • Protects Well

                    Cons

                      Best Uses

                      • Engine

                      Comments about High-Viscosity Lower Unit Lube:

                      The oil worked great and the motor seemed to preform at it's full potential

                      Displaying reviews 1-10

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