Differences between three (or more) current OMC Fuel Pumps?

Home Forum Ask A Member Differences between three (or more) current OMC Fuel Pumps?

Viewing 10 posts - 1 through 10 (of 10 total)

  • seakaye12

    US Member - 1 Year (includes $3 online payment fee)
    Replies: 1117
    Topics: 108
    #249748

    I started looking on Marineengine for a new fuel pump and see that there are (at least!) three models with essentially the same appearance. Can someone tell me what the difference(s) might be?

    OMC Part number 0388685, 0397839, 0391667.

    Fuel-Pump-0388685

    Fuel-Pump-0391667

    Fuel-Pump-0397839


    crosbyman

    Canada Member - 2 Years
    Replies: 3588
    Topics: 326
    #249754

    some have thicker bases but I think they are basically the same …

    I found some at $6.99 (no longer available from DEALPEAK folks) … I know OEM is better but…

    Joining AOMCI has priviledges 🙂


    dave-bernard

    US Member - 1 Year (includes $3 online payment fee)
    Replies: 2014
    Topics: 30
    #249756

    position of bolts on 2 of them the other the position of hoses.


    Mumbles


    Replies: 5764
    Topics: 298
    #249757

    Probably the same pump mechanically but the inlets and outlets are clocked differently. The beauty about the square pumps is you can locate both of them wherever you want as long as the internals are correct.


    crosbyman

    Canada Member - 2 Years
    Replies: 3588
    Topics: 326
    #249760

    real tricky to re assemble but after a few they are ok I guess

    http://www.leeroysramblings.com/Rebuilding_fuelpump.htm

    Joining AOMCI has priviledges 🙂


    seakaye12

    US Member - 1 Year (includes $3 online payment fee)
    Replies: 1117
    Topics: 108
    #249766

    A big difference in price from one to another ($114.91 to $84.57……)

    Crosbyman…..do those cheap pumps work OK? I seem to remember you or someone saying that a few “mods” had to be performed first????


    crosbyman

    Canada Member - 2 Years
    Replies: 3588
    Topics: 326
    #249768

    personnaly I can’t say I had issues with the cheaper ones except for my own screw-ups … that said you may need to reorient the in and out nipples to adjust for clearances

    the cover one is easy just unscrew and align as needed. the OUTPUT nipple is trickier and requiers some brainwork to align the internal frame & check valves to work properly .

    they are small ans easy to swap . You can always carry a spare in case you have worries of failure 10 miles out !

    Joining AOMCI has priviledges 🙂


    wrenchero

    US Member - 2 Years
    Replies: 157
    Topics: 59
    #249805

    i ordered cheap one from ebay and the base plate was too thick and wouldnt fit under the cover of a 1982 evinrude 7.5. i swapped the base plate and it worked great.

    mn


    phil

    US Member - 2 Years
    Replies: 199
    Topics: 19
    #249873

    The list prices aren’t THAT different, maybe they are overstocked on the one they’re selling cheaper?

    http://www.omc-boats.org
    http://www.aerocraft-boats.org


    outbdnut2

    US Member - 1 Year (includes $3 online payment fee)
    Replies: 1705
    Topics: 91
    #249878

    I’ve used the cheapie Chinese knockoffs without any problems, and like Wrenchero said, they are a bit thicker. I have heard of anoccasional bad one,but at less then $10, just toss it an d put in another. At that price, I ordered a few so I have some around when I need.
    Dave

Viewing 10 posts - 1 through 10 (of 10 total)
  • You must be logged in to reply to this topic.