Coolant Expansion Tank Reservoir Plug

Does anyone know where to find replacements for this rubber hose cap thing on the bottom of the coolant expansion tank?

 

Welcome aboard. Check this link out, it looks like the part number is 90339-09011

RADIATOR & WATER OUTLET. 2009 Toyota Tacoma | Toyota

 

Thank you!

 

Zach

Does yours leak from this plug?

 

Yeah, it’s cracking and starting to seep through slowly

 

GREAT question, the last time I cleaning the overflow tank the black rubber cork was hard to get on, and wondered if the older harder rubber would hold.

 

do you remember if you were smelling coolant because of the seeping?

 

I'm having the same thing. Buying a metal screw clamp to re-tightened the top hose (there's some wetness and dried white powder on the outside of the reservoir apparently originating from the top hose entry), and a makeshift plug that's originally meant to be used as a bypass caps for the bottom plug.

 

Update:
Added metal clamp. Also, my bottom plug seems perfectly fine, so I guess I'll put it back and see if that does it.


The rubber plug seems fine, no cracks, still flexible and rubbery.

 

I need that plug for a 2012, does anyone know the part number?

 

Unfortunately I had no luck. Fortunately mine was just a bit loose, so fixed it with a steel hose clamp.
This worked because mine wasn't cracked.

The most I ever found were options to buy the whole thing, reservoir included for over $200.

 

I guess maybe the plug under the oil filter might work in case of emergencies