The VAC Motorsports Crank Seal Guard, made of 6061 Billet Aluminium, prevents your auxiliary belt from being pulled into your engine, a common problem amongst BMW N54, N55, and S55 Engines.

Without a crank seal guard, the belt on N54, N55 and S55 engines is commonly sucked into the crank hub area past the crank seal, where it enters your engine and disrupts engine timing. When this occurs, the belt is shredded and clogs engine oil pickup, starving the engine and reducing oil pressure, causing catastrophic engine failure and thousands of pounds worth of damage.

VAC Motorsports’ Crank Seal Guards are precision machined for perfect fitment and provide rigidity and maximum protection. They designed our guard with self-locating pilots to perfectly seal the crank hub bore and provide even, minimum clearance around the crank hub. 

Installation hardware included.

Made in the USA.