I recently ordered redline mt-85 for my 2003 350z transmission. I am going to be changing my transmission fluid myself and to my understanding its the general consensus that the drain plug washer/gasket (what ever you want to call it) should be replaced. When I look online I can only find the washer for the oil pan drain plug, is it the same size?
Will I be able to find these washers at a auto store like napa, auto zone, etc?

 

5 years later.... still waiting..

 

Holy hell no one ever replied lol

 

Right! Haha I looked everywhere and only found blank Forums !

Gonna take a guess, he never replaced the gasket and the car exploded causing him to buy a new car *Not a Z* and has now moved onto a different car forum website where his new questions will still go ignored........

Anyways! Hows everyone doing? (: I'm trying to change all my 350z HR fluids and found myself here. (^:

 

Well what do you need help with?

 

Transmission fill and drain plugs are both M18x1.5 so the sealing washers are M18. If you don't want to buy them from the dealer, you can grab aluminum or copper washers at a hardware store.

 

Is the transmission drain plug gasket for the 350z hr transmissions also this same size?? And would i need only a gasket for the drain plug? Or for the fill plug as well?

 

I don't know if the HR transmission is the same, but if it is, then you may want to replace the crush washers if they haven't been changed. It's such a cheap easy thing to do that you should every few fluid changes.

 

Yeah i ended up ordering 2 of these crush washers 👍🏽
https://zspeed.com/product/zspeed-co...n-plug-washer/

 

These can be bought from the dealership service department