Application : Compatible with BMW N13 N14 N18 N20 N26 N43 N53 N54 N55 N63 N74 S55. Fuel Injector Seal Remover Fitting Install Tool for BMW N55 N63 S55 S63 B38 B48. fit the Teflon seal (or ring) onto a BMW fuel injector prior to refitting the fuel injector to the cylinder head.
eBay