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holden 253 water pump bolts size

can someone with a parts book tell me what are the bolt sizes for the water pump on the 253
there are l think three different length size bolts ,
a one off being the longest

thanks greg

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Don't have HQ book handy but HX 253 water pump bolts are part # 9427637 x 3 so all the same length , don't see why HQ would be any different.
Hope that helps

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found this info on line re all bolts required for water pump and timing cover
all 5/16" UNC

4 X 1.75" LONG
1 X 1" LONG
1 X 1.5" LONG
1 X 3.75" LONG
5 X 2.75" LONG
1 X 2.25" LONG
1 X 1.75 LONG

14 in Total

the water pump has 8 bolts. The lower ones are shorter as they only go into the timing cover. The one for the alternator is the longest so that would be the 3.75" one. I'm suspecting that most are 2.75"...not a precise answer but maybe something to go by..no doubt cheaper to buy some individual bolts and cut down to size than buy a set for $50 or whatever they are on line...

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Andrew

thanks andrew
thats what l was after , we are missing the long bolts so this will give us an idea
of bolt length thanks again also where on line did you get info from

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I plucked it from another forum I visit where someone had asked a similar Q:

https://www.aussiev8...

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Andrew

Try a nuts and bolt shop.
Carohn & Co in Taree, NSW, are great blokes and will post it: https://www.localsea...
I doubt if they would cost any more than half the ebay price, postage included, from them.
David

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