911 Carrera S Cabriolet (997) F6-3.8L (2007)
Piston: Application and ID
Piston wear, weight groups and identification markings
Information
Weight groups and identification markings
Information
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Original pistons from Porsche are only available in the dimensional group X.
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Observe the different weight groups.
Piston markings
Identification markings:
1 - Manufacturer's logo
2 - Date of production
3 - Manufacturer's drawing number
4 - Weight group
5 - Arrow marking for intake side (visible on new pistons)
6 - Data matrix code
7 - Porsche part number
8 - Dimensional group
Checking
Checking for wear
Warning
Caustic fluid
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Danger of chemical burns
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Avoid contact with caustic fluid.
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Wear personal protective gear.
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Ensure that there is good ventilation.
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If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.