Kies Motorsports BMW S55/ N55 Engine Crank Seal Guard (F30/ F32 /F80/ F82/ F83/ ETC)

NOTE: THIS WILL NOT WORK ON E SERIES VEHICLES. THIS ALSO DOES NOT WORK ON N54 MOTORS. These are precision engineered with tight tolerances, based on factory specs. If you've had your seal replaced due to an engine repair, crank hub upgrade, etc, please ensure that the seal has been properly set and has a minimum depth of 3/8". Compatible with F series N55 and S55 engines. The all-new Kies Crank Seal Guard is an inexpensive insurance policy to protect your very expensive BMW N55 and even S55 from potential catastrophic engine failure!  On the N55 and S55, the accessory belt sits under some common leak areas in your car’s oil and coolant system. If you experience one of these leaks, what can happen is your accessory belt can start to walk off your crank pulley. Because of the design of the engine, tiny shards of rubber from your fraying belt can easily find their way through your crank seal. If this happens, these little pieces of the belt can get picked up by your timing chain a