BMW N55 pistons- 10.0:1 compression ratio- come in 84.0 and 84.5 bore sizes- will also fit N54 engines with compression increasing to 10.5:1- see N54
***REPLACEMENT RINGS USE R121230840PVH or R121230845PVH
BMW N55 pistons- 10.0:1 compression ratio- come in 84.0 and 84.5 bore sizes- will also fit N54 engines with compression increasing to 10.5:1- see N54
***REPLACEMENT RINGS USE R121230840PVH or R121230845PVH