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Old 09-14-2009, 10:27 PM   #3
Registered User
Join Date: May 2004
Location: Bethlehem, PA
Posts: 918
My Ride: 2004 330i
vaio76109 has the correct pump shaft. The VAC one has never worked for me and the motor out of the Z4 proved to me (for the 4th time) that this pump shaft does not work. The only reason why I use the BMW motorsport system right now because I want all 4 of my motors to be exactly the same.

FYI: No matter what, install a new pump chain and if you put around 100 hours of race time on your motor, change out the chain again.
mrshelley is offline   Reply With Quote