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Hi all,

Can someone offer an explanation for this.

I ordered a magnetic sump plug for my GTR and was told all sump plugs for skyline R33 are same

M12 x 1.25

When I went to replace it the original was much larger (maybe M20) but I didn't compare the thread size

The possibilities are that it was bored out and tapped to a bigger size,

OR that they have told me the wrong size

Can anyone confirm what the case would be

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https://www.sau.com.au/forums/topic/424882-r33-gtr-vspec-sump-plug/
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I've bought a few of these, fitted them to the GTSt, Aristo, Patrol in fact anything with a tin sump.

The thread is M12x1.25 and is not the GTR size, which is why I still have this one in the shed.

Not going to drop my oil just to prove a point but from memory the alloy sump thread is around M16.

post-73571-0-43706500-1368087301_thumb.jpg

Thank you for your replies

I have done some more research and am very confused now

Some people are reporting same problem as me, some are not

Can anyone definitively say a vspec r33 is supposed to have an M12 x 1.25

I suppose my next step is to wait for next oil change and measure the plug

  • 2 weeks later...

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