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Home >> Porsche >> 2016 >> 911 Turbo, 2D Convertible >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 13 - Engine - CRANKGEAR, Pistons -- 911 CARRERA (991) >> WM 131001 Piston Wear, Weight Groups And Identification Markings (Except CARRERA "Edition", CARRERA Cabriolet "Edition", CARRERA 4 "Edition", CARRERA 4 Cabriolet "Edition", Gt3, Gt3 RS) >> Information >> Weight Groups And Identification Markings

Weight Groups And Identification Markings

Information 

Identification markings: 

  1. Piston
  2. Data matrix code on piston (intake side)
  3. Porsche part number
  4. Dimensional group (only dimensional group X available as replacement)
  5. Manufacturer's logo
  6. Weight group
  7. Arrow marking for intake side (visible on new pistons)
    Fig 1: Identifying Piston Markings
    G09990468Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Weight groups: 

Weight group Piston, complete, 997 3.8 l - Ø 102 mm
MA1.03		 Piston, complete, 997 3.6 l - Ø 97 mm
MA1.04
- 565 - 571 g 497 - 503 g
+ 571 - 577 g 503 - 509 g
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