[floatingkiwi]

Hi All



I have a 2005 997.1 C2S down under. 65000km. Very good dry conditions, NZ new car so no salt/rust etc.

Just replaced the sparkplugs and found the 3 coils on the left hand bank have hairline cracks in them, nothing like some of the photos I have seen and not giving any issues but probably need to be replaced.

Now, these part numbers are:

On my car: 996 602 102 00 (short bolt)

Supposed to be from the parts Katalog (short bolt): 997 602 104 00

From Pelican parts (long bolt version): 997 602 104 02



So my first question is:

Can I replace only the left 3 (and I guess it has to be at least 3) with the modern part number? (short or long bolt)



And: are the short and long bolt versions any better/worse then each other? I.e stay with short bolt or not.

And: why does my car appear to have 996 coil packs on it??? (which are even older than the 2005 997 parts katalog number), 996 602 104 00



Thanks