7
Piston Markings (decode)
- Thread starter mystix
- Start date
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
82.42 is the stock bore size. I am unsure what the second number is. Some sort of lot number possibly. 06K is the start of the part number, K is revision.
@Diggs24 isn't bore 82.5mm? Could 82.420 be a casting number?
@Jachas Thanks!
@scrllock not sure what you mean.
I have to put my CXCB back together, managed to insert 3 pistons in and broke the control ring on the last piston.
I started looking at part numbers and seems at some point VW changed ring designs to manage oil consumption but from my research it sounds like that the pistons were also updated to work with updated rings.
My pistons have the older style oil control ring which looks to be part 800077510000.
Anyone else have experience/insights they can share?
@Jachas Thanks!
@scrllock not sure what you mean.
I have to put my CXCB back together, managed to insert 3 pistons in and broke the control ring on the last piston.
I started looking at part numbers and seems at some point VW changed ring designs to manage oil consumption but from my research it sounds like that the pistons were also updated to work with updated rings.
My pistons have the older style oil control ring which looks to be part 800077510000.
Anyone else have experience/insights they can share?
Diggs24
Autocross Champion
- Location
- de plains! de plains!
- Car(s)
- 2015 GTI
sorry the piston is 82.420, the cylinder bore is 82.5
If it's apart, why not use the updated piston? The early year cars tend to be much worse for oil consumption.
avenali312
Autocross Champion
- Location
- Mableton, GA
- Car(s)
- 2015 GTI
Yup, March 15, 1927.
DerHase
Autocross Champion
- Location
- Hampton Roads, VA
- Car(s)
- 2019 GTI Rabbit
Ironically enough I just posted this:
I didn't see an 06K...K part number, but all the 06L...K numbers were very early 2015 CXCA/CXCBs.
I didn't see an 06K...K part number, but all the 06L...K numbers were very early 2015 CXCA/CXCBs.
woah that's some impressive work @DerHase. FWIW, When I called the dealer asking for the piston ring part number they quoted me revision F as well which is what I see in your spreadsheet as well as original equipped part.
Anyhow, I ended up ordering newer style Kolbenschmidt rings 800113810000. They should be here next week, lets see if they fit on my 06K-K pistons.
Anyhow, I ended up ordering newer style Kolbenschmidt rings 800113810000. They should be here next week, lets see if they fit on my 06K-K pistons.
If it's not a ring from the dealer I wouldn't expect it to come gapped. Usually they're intended for you to file them down to your preferred gap.