Leaking brake fluid in Sc430

[Buckey75]

Hello,

My brake master cylinder reservoir tank on my Sc430 is leaking , does anyone know where I can get a replacement please?

Edited February 13 by Buckey75

[Bob King]

48 minutes ago, Buckey75 said:

Hello,

My brake master cylinder reservoir tank on my Sc430 is leaking , does anyone know where I can get a replacement please?

Would that be from the plastic being split or maybe an O ring underneath ?

 

[Buckey75]

It's a hairline split on the tank

[Bob King]

46 minutes ago, Buckey75 said:

It's a hairline split on the tank

What year is your SC ?

I’ll try see if the part is sold separately.

…..looked at your previous post a 2004 👍🏻

[Bob King]

It does appear to have its own part number.

 Another option is to contact Paul Frost who runs a Lexus dismantlers.

https://www.lexusownersclub.co.uk/forum/topic/121168-paul-frost/

 

shown with its own part number..

check with your local main dealer if that’s the correct number for your car .

47220-30130
 

[Buckey75]

Update, it now appears the leak is from the o ring at the bottom of the reservoir tank.  It appears Bob King, you are correct.  My first contact with lexus regarding this, they tell me I would have to get the tank with the o ring attached.  If they are correct it's the same difference.

[Bob King]

1 hour ago, Buckey75 said:

Update, it now appears the leak is from the o ring at the bottom of the reservoir tank.  It appears Bob King, you are correct.  My first contact with lexus regarding this, they tell me I would have to get the tank with the o ring attached.  If they are correct it's the same difference.

If it looks like a standard O ring, most car spare shops / motor factors would have a tray of different size O rings, pop into one and get them to matched it up .

If it looks like a custom seal for that reservoir only, you’ll have to buy the whole thing from Lexus .

have you got a photo of the underside of the reservoir ?

[Bob King]

…..If it looks like a standard O ring, buy yourself a set  👍🏻

 

https://www.amazon.co.uk/Rubber-Sealing-Assorted-Assortment-Machine/dp/B07ZSDYX8G/ref=sr_1_2?crid=1OJ6ACWVTBDI3&dib=eyJ2IjoiMSJ9.TWGj8JgLLOZmbQcqU-D0wNcXZ7o6SZdikZ9x5goCOqzM7nbCGg4dHt3ciuaNulmASJXr621t00Lv66kpvj3uJWmOwtDIF0jwhVp9kq_LoS3nq5hT2yHKybNnqtL0jo6rR0WU3QH7nozTrOQAtIT1kYvQZlLUErzTJpkXmfd_HZV6CELiz6o79DWiSsk47NlWwNnTaedPFMYtTZFDpp-tAFlLu073dBCDzrWcQm4gKIKx4bARKv0Uz07XwauQZCYn-6mQlMeItw-s5b8qGWbwk74zkWo88QlEc2xAsKvdGQM.nQAKQAKnFOIRPChqm00yvJrcUOt0Jx9S49xkzRgd9tI&dib_tag=se&keywords=Set+O+rings&qid=1709729617&sprefix=set+o+rings%2Caps%2C75&sr=8-2-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1

[Buckey75]

Thank you Bob King, I will remove the o ring and try some motor factor places to see if they have a similar one.  If not I will order the box from amazon.