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23hotrodr's avatar
23hotrodr
Explorer
Sep 10, 2018

Workhorse engine pre-filter

I have a 2007 Itasca Suncruiser on a Workhorse W24 chassis with the 8.1L engine. It uses an AC Delco A917C or Napa 6144 air filter.

Does anyone know the part number for the foam pre-filter that is in front of the flat panel air filter? I don't care about brand-- NAPA, Wix, AC, etc. The Napa folks couldn't find anything.

Thanks for any help-- Mick
  • I don’t believe the foam filter is a separate part. In the 15 years I have owned my W22 Workhorse motorhome I have never come across a separate foam filter. It depends which filter you buy. Some come with the foam and others don’t. I use the NAPA 6361 which comes with the foam.
  • Fulltimers wrote:
    I don’t believe the foam filter is a separate part. In the 15 years I have owned my W22 Workhorse motorhome I have never come across a separate foam filter. It depends which filter you buy. Some come with the foam and others don’t. I use the NAPA 6361 which comes with the foam.


    Thanks for the number! That will be fine. -- Mick