Small O-ring to fit the left hand side of the Bosch Gen 3 crankshaft.

Bosch Generation 3 motor BDU3xx (NOTE: Large chainring)

Large O-ring to fit the right hand side of the Bosch Gen 3 crankshaft sprocket carrier.

Bosch Generation 3 motor BDU3xx (NOTE: Large chainring)

New Bosch long life tacky grease for the main motor bearing seal.

Bosch drive unit grease for gears and bearings within the motor. This grease should be used for overhauls or re-greasing Bosch Performance Line motors.

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