They look like the correct gaskets. I am not familiar with the company. However, if your mechanic has used them before, they should be fine.
Does your mechanic warranty his work?
Also, just so you know. After a few months you should torque the valve cover bolts again. (7 Foot pound/9.5 Newton meter). Then check them once every year or two. I do this when I change my oil.

 

I picked up my car from the mechanic today, after replacing the valve cover gaskets and sealing the breather covers with silicone. So far, the oil is not leaking, so it looks like the job was done correctly.
For those interested, in Poland this repair cost me $125. And how much would it cost in the US, for example?
At the same time, they replaced the rubber hose for the engine breather.
AutoSerwis gives me a 2-year warranty for this repair, which is the same as the warranty for the gaskets.
And as for re-tightening the bolts on the valve covers, the mechanic said that in his opinion it can be done, but it would be better after a year.

 

The cost for my valve cover gaskets and sealing the breather covers was about $58.00.
However, I did it myself. You have a very good and honest mechanic.

 

Thanks John for your opinion.
Yes, you can see that the guys in this car service repair cars with passion - just read the opinions given to them, which show that no matter what car you come with, they repair every one.

 

Myopic, I live about halfway between Chicago and Milwaukee. I was getting new tires a couple of weeks ago their posted labor rate is $140 an hour for mechanical work.

 

@Wadsworth Thanks for the info. It seems that mechanics in the US are damn expensive...

 

I will allow myself a little reflection...
Namely, why do you think that for 20 years no company has produced gaskets under the breathers located on the valve covers?
After all, the breather covers even have a groove.
Why is it still sealed with silicone?

 

The groove is to hold the silicone.

 

Because it's cost effective for them to manufacture it that way. In my opinion.

 

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Cheaper... If they (MB) just goop it during the engine build stage, they (MB) do not have to manufacture/stock/keep track of, gaskets...


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