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blue2000s · 05-20-2009, 09:57 AM

The last two digits in a Porsche part number are the revision. The higher the number, the later the revision. Typically, they will keep the part number the same except for the last two digits if the part is meant to be upgradeable on older models, for example a car that came with XXX-XXX-XXX-01 can use the XXX-XXX-XXX-04 with no problems.

If the part are not interchangeable, they will change numbers other than the last two. The MAF is an example where the XXX-XXX-125-XX is not a drop in replacement for the XXX-XXX-124-XX because and ECU reflash is also required.

I'm not 100% sure if this is the case with the AOS and contacting Suncoast is a good idea, but in general, this is the way Porsche PNs work and you probably just want the one with the highest final two digits.

05-20-2009, 09:57 AM	#3
blue2000s Porscheectomy Join Date: Mar 2006 Location: Seattle Area Posts: 3,011	The last two digits in a Porsche part number are the revision. The higher the number, the later the revision. Typically, they will keep the part number the same except for the last two digits if the part is meant to be upgradeable on older models, for example a car that came with XXX-XXX-XXX-01 can use the XXX-XXX-XXX-04 with no problems. If the part are not interchangeable, they will change numbers other than the last two. The MAF is an example where the XXX-XXX-125-XX is not a drop in replacement for the XXX-XXX-124-XX because and ECU reflash is also required. I'm not 100% sure if this is the case with the AOS and contacting Suncoast is a good idea, but in general, this is the way Porsche PNs work and you probably just want the one with the highest final two digits.