BMW 4HP-22 Auto Trans Filter KIT (Aftermarket) Fits ZF 4HP-22 4 speed automatic transmission. Kit includes: (1) 24 31 1 218 550: transmission filter (1) 24 31 1 218 570: filter seal (1) 24 11 1 217 082: trans pan gasket Please see FITMENT CHART below, under PRODUCT DESCRIPTION.