The CTA BMW Fuel Injector Oil Seal Kit, No. 2250, is used for removing and installing the injector seals found on many BMW engines. This kit can be used on the most commonly replaced injectors found in the BMW N54 I6 and N63 V8 engines, the MINI N14 and N18 I4 engines, and also the seals on BMW N13, N14, N18, N20, N26, N43, N53, N54, N55, N63, N73, S55, S63, B38, and B48 factory injectors.