Transmission drain plug threads stripped

[hayythere Lurker Find all posts View Profile Close hayythere]

I recently acquired a 2014 Prado and not sure of the full service history did a partial transmission oil change.

When I went to remove the drain plug however after cracking it loose it did not want to come out by hand... which was suspicious.

Upon refilling I went to torque the drain plug bolt up to 20Nm and it didn't even get that far, it was spinning and not gripping.

I tried to back it off but it didn't want to come out. I sort of felt good enough and I decided to refill with oil and see how it went. Luckily it's not leaking or dripping yet.

I think it might hold for a while but not for ever, and something will need to be done by the next transmission drain.

What is the usual strategy to fix this issue?

Is it usually the drain plug threads that strip or the sump plug threads?

I'm hoping it's the drain plug but I won't be sure until next time I drain the fluid or notice it leaking

[Daniel150 Member Find all posts View Profile Close Daniel150]

Two options I’d try.
1. new pan from a dealer or wreckers. Try amayama for genuine, they can save you a bit.
2. remove the pan and re-tap the thread for a new drain plug.
That’s really annoying, I’ve never had one strip. Probably a lazy mechanic with a rattle gun.

[carco Advanced Member Find all posts View Profile Close carco]

Try a trany shop that does plenty of work. Will probably have heaps of spare bits around.

[hayythere Lurker Find all posts View Profile Close hayythere]

Amayama looks interesting. New oil pan is $95.45 plus $14 shipping AUD. I thought it would be more.

A thread repair kit is around $60-70 and the results aren't guaranteed.

In either case you need to remove the pan as you don't want thread shavings in the bottom. I reckon at this price it's worth getting a new pan as I rarely or never rethread anything and a repair kit would basically be a once off purchase.

Amayama appears to only have the left hand drive Prado version available. For things like transmission it would have to be the same correct?

[Piggy Water pistol pilot. Find all posts View Profile Close Piggy]

Try partsouq or amayama and put your VIN in, it will bring up the correct part then.