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  1. Yesterday 10:15 PM #1
    nmcafee
    nmcafee is offline Registered Member
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    Sep 2020
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    How to I determine the oil filter for my Onan 20K generator

    It is model number 20MDL 4B30366B. I have searched the forum and googled the snot out of it, how do I determine what actual oil filter I should buy? I also checked the service manuals, no model listed there.

    THanks,
    Nathan McAfee
    Ocean Sloth
    1990 Hatteras 54' EDMY
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  2. Yesterday 10:38 PM #2
    Pascal's Avatar
    Pascal
    Pascal is offline Senior Member
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    Mar 2005
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    Re: How to I determine the oil filter for my Onan 20K generator

    It should be in the parts manual, any onan dealer or specialist should be able to get them
    Pascal
    Miami, FL
    1970 53 MY #325 Cummins 6CTAs
    2014 26' gaff rigged sloop
    2007 Sandbarhopper 13
    12' Westphal Cat boat
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