So I finally have my first little exhaust leak...thank goodness the system is stainless.

The leak I have is in the gasket between the cat and the rest of the exhaust system headed toward the back of the car.

If anyone else has had to replace this one, where can I go to find this gasket? Is this dealer only or would an autozone have it?

Attached image shows exactly where.

Thanks

 

I can't imagine Autozone carrying it but I would call them though. They carry many of the standard items like filters, etc. Carson Toyota in California (Luis or Steve) is the best place I have found for affordable OE Lexus parts though.

 

i recently had to get some gaskets for a small engine. no luck finding them at autozone or pepboys, but i did pick up this silicone like stuff to make them yourself. i would think about making them yourself because they can save you some cash in the long run.

 

Not sure if that would work for exhaust though...considering the temperature.

 

theres high temp silicone..

 

meh, OEM gaskets for the most part are cheap, just order via Carson

 

it works just fine. the only thing you can't really use it for is the head gasket, because it gets so hot.

 

Catalytic converters typically operate at around 1200ºF. Look at where the gaskets are located that the OP needs to replace, and then go find a silicone sealant that will work consistently at that temperature. I can almost guarantee that you won't find anything.

 

Actually Cats run from 600-1000F -- 1200 Is a little high, but your point is still very valid.

Most high temp RTV silicones are rated at a maximum of 650F -- Not even close to what a Convertor is running. It will melt. That is almost the hottest spot in the car, other than internal engine areas.

Frankly I'm surprised OEM gaskets don't fail more often under those temperatures.. but I'm sure they took those operating temperatures into consideration and specced them closer to 2000F limits.

 

Which is also why you need to let your car cool before working near exhaust -- It can burn the ever living hell out of you

 

anybody have the part number to these gaskets? need to replace em to make my ls whisper quiet

 

try searching it at www.t/o/y/o/d/i/y.com/parts

[Without all the / <- before .com]

then look up your year, make, model, country...
followed by searching for the gasket by name.

Goodluck!

 

i did last night and i found everything i could ever need! who made that website! i owe them so much!