This piston rings set is designed for engine rebuild, repair, and maintenance of 1.9L T TDI diesel engines used in specified SEAT and vehicles from 1984 to 2012.It serves as a direct replacement for worn or damaged components and is manufactured to meet standard dimensional and functional specifications.OEM reference numbers: 028198151, 028198151A, 028198151B, 033198151 Piston ring dimensions: - Bore size: 79.50 mm - ring: 1.75 mm - Second ring: 2.00 mm - Oil control ring: 3.00 mm Compatible with the following models equipped with 1.9L TDI engines: : A3 (1996–2002), A4 (1995–2008), A6 (1994–2001), Cabriolet (1995–2000), 80 (1989–1996), Beetle (Car) (1998–2004), Caddy (1995–2009), California (1994–2002), Fox (2007–2009), Parati (2002), Saveiro (1998–2005), Spacefox (2007–2010), Transporter (1984–2003), Voyage (1996–2001) SEAT: Alhambra (1996–2010), Cordoba (1993–2009), Ibiza (1993–2005), Inca (1995–2003), Leon (1999–2006), Toledo (1991–2004), Felicia (1995–2002) Multicar: Tremo (1998–2004)