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8 Cyl Water Pump Question
  • SuperDaveSuperDave
    Posts: 2,377Platinum Member
    The part number for a stepdown 8 water pump is 300567. The Hudson interchange manual says it fits only 48 and up. What is the difference between the two and could the early one be used on a 48 and up ?:huh:
  • Park_WPark_W
    Posts: 2,053Platinum Member
    Dave, the interchange book says you can't use the '47 and earlier 8-cyl pump on a '48 or later, so one would assume the reverse is also true.
  • Tallent RTallent R
    Posts: 1,576Platinum Member
    It may have to do with the fan blade hub and where its positioned on the shaft. Seems to mee the pump looks the same but maybe the radiator spacing is not?
    Roger
    Retired Tech.
  • Park_WPark_W
    Posts: 2,053Platinum Member
    Dave Kostansek's out of the business now, but I bet he can tell you.
  • SuperDaveSuperDave
    Posts: 2,377Platinum Member
    The problem that I was presented with was...A Member has a 47 with a stepdown engine. The water pump needs replacement. Which one does he buy???
  • Tallent RTallent R
    Posts: 1,576Platinum Member
    Might contact the 8cyl expert listed in the WTN . I've spoken to him before but dont recall his name. And I dont have a WTN handy,
    Roger
    Retired Tech.
  • Geoff C., N.Z.Geoff C., N.Z.
    Posts: 2,270Platinum Member
    The water pumps are interchangeable for all 8's and 6's 1936 thru 1947, and these come up regularly on ebay, so that's the way to go in my opinion. I don't have a '48-'52 pump here to compare, but they use different internals using a double row ball race instead of plain bushings. Not sure if they are the same mounting.
    Geoff
    If you're stuck in a hole, stop digging.
  • Park_WPark_W
    Posts: 2,053Platinum Member
    Dave, if it's a stepdown engine, he should buy the water pump for '48 ff.
  • SuperDaveSuperDave
    Posts: 2,377Platinum Member
    Thanks to all for all the input. I will relay it to the member..:) :)
  • Hudson308Hudson308
    Posts: 1,405Platinum Member
    SuperDave wrote:
    The problem that I was presented with was...A Member has a 47 with a stepdown engine. The water pump needs replacement. Which one does he buy???

    I've got a rebuilt stepdown 8 water pump for sale. PM me if he's interested.
    Workin Stiff
  • SuperDaveSuperDave
    Posts: 2,377Platinum Member
    email..my47hudsons@yahoo.com
    Bob Harbrecht/.Fa winters,Idiana summers. tell him I sent ya,
    Thanks, Dave Waddell
  • bharbrecht
    Posts: 1Hitchhiker
    the late one fit on my 47/thanks
  • SuperDaveSuperDave
    Posts: 2,377Platinum Member
    Glad you got it fixed,, See You at Dade City?
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