Full SMG 3 Solenoid Valve O-ring set

Fast Attack Motorsports
Current Stock:

Viton O-ring set for the clutch valve on the GS7S47BG SMG III transmission used in the E60 M5 and E63/E64 M6.

As these SMG transmissions age, the o-rings which seal the outer body of the solenoid valves start to take a "compression set" and leak past internally.  For the clutch valve, this is often the cause of a 4FA0 error code stored in the SMG (clutch position deviation) with no other codes present.