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whats the story with this dual output water pump?

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    whats the story with this dual output water pump?

    So I have had a few 325i (87, 89, 90), and I've done a few water pump replacements, but in my memory, all of them have had a water pump with one tube going out (for one coolant hose). I recently acquired an engine from a wrecked 325i vert (not sure of model year), and it had a water pump with two outputs. ... whats the deal? which models had this and why?
    I just did a timing belt and water pump change on the newly acquired engine, and I actually didn't notice the difference until after I put on a new water pump (I put on one with only one tube out instead of 2)... probably too much beer while playing with my tools!

    Can I switch the water pump from the two out version to the one out? If so what else needs to be changed/modified?
    My plan is to drop this into an 89 325i (formerly auto) if that matters.

    Cheers!

    87 4dr specE30: Bitsy (lurking above), 89 4dr 325i blau, 91 318is brillrot, 90 325ivertbronzit

    #2
    The dual outlet pump is for early model M20 engines. 87 and older.

    Since you're putting it in an 89 you can just install a late model pump.
    BimmerHeads
    Classic BMW Specialists
    Santa Clarita, CA

    www.BimmerHeads.com

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      #3
      Thats what I was hoping to hear, thanks.

      87 4dr specE30: Bitsy (lurking above), 89 4dr 325i blau, 91 318is brillrot, 90 325ivertbronzit

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