Piston for athena big bore

Hi,

I just bought a 2009 yz450f for supermoto. This bike is athena big bore 480. I have just order a new piston for this big bore. The seller (atvunlimited) sold me an athena piston but it seems to be for 2003-04 models. Are they the same for 2009?

Thank you and sorry for my english :eek:

I would say no. But not certain.

The 04-09 pistons will interchange the part numbers changed through the years on the standard pistons but they also interchange. the big bores are the same as well

Thank you for your answers.

I also found the information on athena website :eek:

They are interchangeable.

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