OEM Air Filter question..
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Thread: OEM Air Filter question..

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    jeepjeff's Avatar
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    OEM Air Filter question..

    On my 212 with the Kohler 12 HP (K301AQS) the John Deere part number, M47494, is a paper filter.

    My question is why doesn't the OEM filter include a pre-filter like around 90% of all other engines do?

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    RetiredDoc's Avatar
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    Just a guess.

    1. Cost saving to Deere.

    2. Foam pre-filters are supposed to be reusable - wash it and lightly re-oil it. Doesn't everyone do this instead of installing a new pre-filter every time the paper filter is replaced?

    My bet is that (1) is the reason, and (2) is the Deere company public response if asked.
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    jeepjeff (08-04-2018)

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    jeepjeff's Avatar
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    Guess I should have said that I ordered one with a pre-filter since there wasn't one (pre-filter) on the machine when I got it. I just feel better with one and wanted to make sure using the thing wouldn't screw something up due to air/fuel mixture type things.

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    A pre filter is preferred, but being washable they have a longer life then the paper ones. Many people are also too cheap to buy both and do it right.

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    jeepjeff (08-04-2018)

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    Quote Originally Posted by jeepjeff View Post
    Guess I should have said that I ordered one with a pre-filter since there wasn't one (pre-filter) on the machine when I got it. I just feel better with one and wanted to make sure using the thing wouldn't screw something up due to air/fuel mixture type things.
    I like the foam pre-filter. I kept one from an old filter so each time I service the machine I swap to a fresh foam pre-filter and wash the old one. The paper inner filter stays clean and I avoid any build up of debris on the outer filter. I swap pre-filters 4 times or so before changing the paper filter.
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    jeepjeff (08-04-2018)

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    You all just eased my mind a bit.

    On the bright side I did do a little painting of the shrouds and hood (top pic is the day I got it). And yes, that is a reflection of the variable speed knob in the hood.

    Click image for larger version. 

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    Last edited by jeepjeff; 08-04-2018 at 05:22 PM.

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