KKK24/26 water union thread sizes

[SteveH]

Does anyone know what thread KKK24/26's use for the coolant supply/drain in their turbos? I want to convert to -AN hoses and wondered what adapters I will require.

Cheers!

[UrS4boy]

K24 Turbo Coolant and Oil Feed and Return Lines

Answer might be in this post:

Turbo Coolant and Oil Feed and Return Lines:

http://forums.quattroworld.com/s4s6/msgs/72682.phtml

[Error404]

Its not.

M14 & M12

[UrS4boy]

Its not. M14 & M12

If you give me more details as to where the M12 and M14 threaded bits are, it *WILL*.

[Kieron20V]

#7 and #9. Small in, big out.

[SteveH]

I've pulled the adapters out and they do measure up to be approximately 12 and 14mm. Why is one considerably larger than the other comes to mind? The top connector has a much larger bore than the bottom. I assume it's supplied by the smaller hose from the block and runs back to the coolant rail on the head.

[SteveH]

Its not.

M14 & M12

Wish I had a thread pitch tool to check these...

Are these 1.25 or 1.5 pitch??

The adapters come in both sizes

[mrtat2k9]

dont know if this will help you but iv just brought one for my standard turbo and it is a m6 to m8 union on the bottom and the top looks like m8 to m10 union

[Error404]

Steve I don't think they are fine pitch, post a pic of them should be able to tell from that

[SteveH]

[Error404]

For sure they aren't fine pitch

[SteveH]

For sure they aren't fine pitch

Even I can see that

Could be 1.25 or 1.5. I think I'll go buy a thread pitch gauge as I could do with one anyway. It will be cheaper than buying the wrong fittings

[Error404]

True. I'd say 1.5 looking at it. Thread gauge might pay for itself

[SteveH]

Just checked the threads and they are 1.5 pitch on the inlet and outlets