Greetings,

I have a 2018 450hL with 80K miles on it that I just purchased a couple of months ago. I has been great so far. It has 85K miles now!

While watching the utoob videos by the Care Care Nut thought I should really change the transmission fluid, he suggests doing it between 50K and 90K. I crawled under the vehicle (I barely fit) and managed to get the fill plug loose. The drain plug on the other hand was really tight and I managed to strip it. I have ordered tools to remove it, but I do somehow need to replace it. Any tips on getting the drain plug off cleanly in the future would be greatly appreciated too.

Where can I look up these part numbers? Any help would be appreciated. I went to the local Lexus dealer, the guy behind the counter was not sure he had the right part numbers but said they didn't have any of them in stock anyway. He was nice and suggested I buy it on line for less money and provided what part numbers he thought were the closest. I headed over to the Toyota dealer and the guy really just wanted me to go away, he kept saying I should stick with Lexus. I finally asked him for a 2018 Highlander Hybrid transmission drain plug and one he brought me was much smaller. So I gave up and came home empty handed.

I wouldn't be opposed to buying one of each kind of plug to keep on hand, just in case. Didn't realize it would be this easy to strip it. The folks on utoob say it happens all the time, but this is the first time I have done it...

I also have a 2013 ES300H that needs the same type of work done. Same mileage. Would like to buy plugs for that too.

Thank you in advance.

 

Without your VIN I can't say for sure but should be
90341-18016 (drain plug)
90430-18008 (washer/gasket)

 

Thank you so much for offerring to do this!

How do you look them up? I would love to get the part numbers for the drain and fill plugs for the transmission and the differential if I can impose

VIN: JTJDGKCA5J2005808

I would pre-emptively like to buy the drain and fill plugs from my 2013 ES300h too, if that is not too hard to find.

VIN JTHBW1GG0D2026140

 

Just realized I am in the wrong forum, Mine is a new newer model. My apologies.

 

07/2018 LEXUS RX450HL
90341-18016 fill plug
90430-18008 gasket

90341-18016 drain plug
90430-18008 gasket


04/2013 LEXUS 300H
90341-18016 fill plug
90430-18008 gasket

90341-18016 drain plug
90430-18008 gasket

As you can see both cars use the same plugs and washer/gasket (matches what I posted earlier) but I included detail for clarity.

 

Thank you so much for this information!!

Pretty much the drain and fill plugs for changing the ATF is the same for both drain and fill and for both vehicles. I'm going to buy four plugs just in case, they are really cheap anyway and 8 gaskets so I have something for next time and don't have to wander all over looking for them later.

From watching some of the videos on line it seemed like the differential (for RX450hL) drain plug had a magnet on it. Any chance I could trouble you to find drain and fill plugs for that?

Thanks again!

I do wonder why the folks at Lexus and Toyota could not look this up, but you can?

 

I started this sticky
https://www.clublexus.com/forums/hyb...diy-index.html

But apparently no one has added to it.

Salim

 

My apologies, I started this in the wrong forum. I have a 2018 450hL which is one generation newer, I think.

If you have privileges, can you move this to the appropriate forum?

Thank you!