This piston and ring set is designed as a direct replacement for worn or damaged components in specified 2.6L V6 M112-series engines.It is compatible with engine models M112, M112.912, and M112.917 found in select vehicles. Specifications: - Cylinder bore: 89.9 mm - Compression height: 33.7 mm - Land height: 5.5 mm - Piston length: 60.1 mm - Bolt length: 52 mm - Bolt diameter: 22 mm Compatible vehicle models include: - C-Class (W203) C 240 (2000–2007), C 240 4MATIC (2002–2007) - C-Class T-Model (S202/S203) C 240 (2000–2007), C 240 4MATIC (2002–2007) - CLK (C209) CLK 240 Coupe (2002–2009) - CLK Convertible (A209) CLK 240 (2003–2010) - E-Class (W210/W211) E 240 (2000–2008), E 240 4MATIC (2003–2008) - E-Class T-Model (S202/S211) E 240 Estate (2000–2009), E 240 4MATIC Estate (2003–2009) OEM reference numbers: 1120302917, A1120302917 Engine models: M112, M112.912, M112.917 Package includes: 6 piston and ring sets