Compatible with 550i 750i X5M X6M F10 E70 models equipped with 4.4L V8 N63 S63 engines accurate fitment across specified vehicles
engineered piston ring set designed to restore compression and engine performance
Constructed from grade materials to withstand temperatures and maintain under driving conditions
Direct replacement for providing sealing between piston and cylinder wall
Ideal for engine rebuilds or performance where maintaining cylinder integrity is essential
Description
Piston Ring Set STD for 550i 750i X5M X6M F10 E70 4.4L V8 N63 S63 STD 0.00 specification with no cylinder expansion required Cylinder bore diameter 89mm Pin diameter 22mm Ring thickness 1.5mm / 1.5mm / 2.0mm Split design piston ring for efficient oil scraping and reduced oil consumption OEM quality construction Packaged as one set for 8 cylinders OE number 11257574822 Compatible with engine codes N63B44A and S63B44A 4.4L V8 twin turbo engines with 4395cc displacement Fits models produced between 2007 and 2018 including 550i Gran Turismo 550i xDrive 650i xDrive 750i 750Li X5 xDrive50i X6 xDrive50i X5M and X6M