I was going to get into some R&D this week on the 350 differential cooler and forgot to order the up the AN conversion fittings for the differential. Anyone know the size/thread of the plug ?

 

There's a couple of diff oil cooler threads out there, I'm sure one of them has the sizes listed...

https://my350z.com/forum/product-ann...ooler-kit.html
https://my350z.com/forum/engine-and-...****-army.html
https://my350z.com/forum/engine-and-...installed.html
https://my350z.com/forum/engine-and-...ler-build.html
https://my350z.com/forum/engine-and-...er-set-up.html


You can also check some of the commercial kits.

 

Thanks,I went through all the threads that came up on the search but never the less they all lacked any real info. Either way I'll keep looking !

 

I don't know for sure but 12mm x 1.25 seems to be a reaccuring theme on the Z.

 

I agree but its def bigger then 12...I'm going to pull the filler tomorrow and figure it out. Thanks guys !

 

You can probably unscrew it enough to measure the diameter without losing much fluid. Have some other bolts handy to compare the pitch.

You might also look at the Dorman site. They sell all sorts of drain plugs, and their site will probably tell you the size and applications.

http://www.dormanproducts.com/gsearc...&type=parttype

 

but in case anybody else finds this thread and needs to know,

the 350z diff cover threads (Fill and Drain)are 18mm x 1.5

and if you are running -8an line the Russell adapter part# 670560