Weight Groups And Identification Markings

Information 

• Original pistons from the Porsche Spare Parts Catalogue are only available in the dimensional group X. 
• Observe the different weight groups. 

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
   Fig 1: Identifying Piston Markings

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.