just pulled the AOS out for inspection and cleaning,sure enough it is leaking at the O ring,as covered in past threads. the part # on the AOS is 6G33-6B673-AA , checking out a new AOS the part # is 6G33-6B673-AB.
just wondering if the AA to AB means it has the updated O ring ?

 

Probably stupid question but AOS is what exactly?

Graze

 

I understand the newer o-ring is deliberately fatter to prevent the on-going leaks. My replacement fitted very nicely and was noticeably larger

AOS is Air-Oil separator

 

Sorry I didn't read your question very well, yes as I recall the AB is the newer o-ring, however I think only the fatter one is supplied now. My dealer only had the larger type.

 

thanks Logannz, i was hoping it was updated. just wanted confirmation ,after reading the old thread from back a few years "member irish" pointed out that a new AOS would not solve the problem,only the fatter O ring would. glad to here that AM picked up on this problem and the new AOS comes fatter fitted...

 

Air Oil Separator

Its function is to separate the oil (from the air) and return it to the engine

 

thanks lads

got it & have a Redpants catch can fitted too

Graeme

 

Does this part apply to 2013 V8 vantage ? 6G33-6B673-AB
I never replaced mine, have 7K mile on my car, maybe i should. i called galpin parts dept, they want $65 I think it's little too much..

 

Thanks Rich. I guess that explains the cost.. Do you have part # for o-ring,
Do you sell this parts?

 

Looks like a new OEM AOS unit #6G33-6B673-AB is ~$35 and a straightforward DIY job. Still wondering if the O ring itself is available separately since that is the faulty part. Anyone using an alternative from Ford, Jag etc.?