O-ring for fuel injectors - methanol / E85 suitable Injector nozzles o-ring 15mm O-ring for fuel injectors - methanol / E85 suitable New rubber ring for Bosch, Siemens Deka, ect. injectors and injector extensions (short, medium, long). Hint: Due to the special material composition, this is a one-time seal which must be replaced after disassembly. You will receive 1 ring. Please add the desired amount of rings to the shopping cart.