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Quiz Time! Water Pumps

Posted 21 hours ago21 hr

comment_676541

Which is the original/correct water pump for a May 1971 240Z?

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20 hours ago20 hr

comment_676542

Almost 100% sure that the Nissan OEM pumps used the cast impeller, not the stamped steel. There are extensive discussions out there about which pumps best.

So, I don't know if A is correct but I'd say that B is definitely incorrect. They both look pretty nasty. Are you thinking about using one of them?

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20 hours ago20 hr

comment_676543

You can get a new Aisin WPN-013 water pump. I have no idea whether or not GMB was an OEM supplier, but Aisin is a Japanese based company that is a parts supplier for that country's automotive industry.

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16 hours ago16 hr

comment_676545

I bought a new Aisin water pump off Amazon recently

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5 hours ago5 hr

comment_676547

I don't think either of those water pumps you pictured are "original", but as for "correctness", here's a couple pics from a 9/70 car. Note that this car has A/C and I don't know if that makes any difference, but it's what I got:

Edited 4 hours ago4 hr by Captain Obvious

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4 hours ago4 hr

comment_676549

I think both those GMBs are aftermarket and agree that an Aisin with the cast iron impeller will be as close to OE that you'll find today unless you can find one using the part number on this box.