This MAHLE piston ring set (part number 082 57 N0) replaces the compression and oil-control rings that seal the combustion chamber, control oil film on the cylinder wall, and transfer heat from the piston to the bore. It fits BMW 535i/535is/635CSi/735i/735iL applications listed in the fitment table below. MAHLE is one of the largest automotive systems suppliers in the world, known for filtration, pistons, rings, and sealing parts produced to OE specification.Technical Details Manufacturer part number: 082 57 N0 Part type: Piston Ring Set Vehicle system: engine cylinder assembly Fitment & CompatibilityUse the fitment table below to confirm year, make, model, submodel, and any application notes before ordering.PMB Performance brings more than 20 years of European parts and fitment experience to every order. Send your VIN or part number and we will confirm the application. Year Make Model Submodel Notes 1985 BMW 535i 1986 BMW 535i 1987 BMW 535i 1988 BMW 535i 1989 BMW 535i 1990 BMW 535i 1991 BMW 535i 1992 BMW 535i 1993 BMW 535i 1988 BMW 535is 1985 BMW 635CSi 1986 BMW 635CSi 1987 BMW 635CSi 1988 BMW 635CSi 1989 BMW 635CSi 1985 BMW 735i 1986 BMW 735i 1987 BMW 735i 1988 BMW 735i 1989 BMW 735i 1990 BMW 735i 1991 BMW 735i 1992 BMW 735i 1988 BMW 735iL 1989 BMW 735iL 1990 BMW 735iL 1991 BMW 735iL 1992 BMW 735iL
