This kit contains the bearings, seals and circlips required to overhaul the Bosch Gen 4 crankshaft. We don’t usually say this, but we would not recommend you tackle this motor without a lot of specialist tools and a strong mechanical engineering background.
This kit will fit the Gen 4 Performance Line CX, Cargo and Speed motors.
Bosch Generation 4 motor BDU4xx.
Please see bearing identifier for bearing position.
Bearing will fit the Gen 4 Performance Line CX, Cargo and Speed motors.
Please see bearing identifier for bearing position.
Bearing will fit the Gen 4 Performance Line CX, Cargo and Speed motors.
Bosch Generation 4 motor BDU4xx.
Please see bearing identifier for bearing position.
Bearing will fit the Gen 4 Performance Line CX, Cargo and Speed motors.
Bosch Generation 4 motor BDU4xx.
This bearing supports the left hand side of the Bosch Gen 4 crankshaft. It will fit the Gen 4 Performance Line CX, Cargo and Speed motors.
Bosch Generation 4 motor BDU4xx.
This is a high quality Bosch lockring tool to remove the castellated nut or threaded chain guard from the front sprocket of a Bosch Gen 4 motor.
Generation 4 (Gen 4) covers the Performance Line CX and cargo line from 2020 These motors have a large front sprocket and look like the motor Below.
Bosch Gen 4 Lower Armature Bearing O-ring PLB40529, bearing will fit the Gen 4 Performance Line CX, Cargo and Speed motors. Please see bearing identifier for O-ring position.
Bosch Generation 4 motor BDU4xx.
Please see bearing identifier for bearing position.
Bearing will fit the Gen 4 Performance Line CX, Cargo and Speed motors.
Bosch Generation 4 motor BDU4xx.
Bosch Gen 4 O-ring Gear Shaft Small PLB40531, bearing will fit the Gen 4 Performance Line CX, Cargo and Speed motors. Please see bearing identifier for O-ring position.
Bosch Generation 4 motor BDU4xx.
Bosch Gen 4 O-ring Lefthand Crankshaft PLB40532, bearing will fit the Gen 4 Performance Line CX, Cargo and Speed motors. Please see bearing identifier for O-ring position.
Bosch Generation 4 motor BDU4xx.
This kit contains every bearing that is changeable in the Bosch Gen 4 motor. We don’t usually say this, but we would not recommend you tackle this motor without a lot of specialist tools and a strong mechanical engineering background.
This kit will fit the Gen 4 Performance Line CX, Cargo and Speed motors.
Bosch Generation 4 motor BDU4xx.
This is the bearing that supports the right hand (drive side) of the Bosch Gen 4 crankshaft. It will fit the Gen 4 Performance Line CX, Cargo and Speed motors.
Bosch Generation 4 motor BDU4xx.
BEARING PROTECTION RING SERVICE KIT FOR Gen 4 (BDU4XX) MOTORS
- Used for protecting the outer left and right hand crankshaft bearings.
- 1x Left hand bearing ring seal.
- 2x Circlips.
- 1x Right hand bearing ring seal.
- 1x tube of grease 20g
- 1x lifting-tool
This O-Ring sits between the front chainring (or chainring spider) and the lock nut. The O-ring is not fitted to all bikes, a new one should only be fitted if an old one is removed.
Bosch Generation 4 motor BDU4xx.
Bosch Gen 4 Sprocket Carrier O-rings PLB40530, bearing will fit the Gen 4 Performance Line CX, Cargo and Speed motors. Please see bearing identifier for O-ring position.
Bosch Generation 4 motor BDU4xx.
Please see bearing identifier for bearing position.
Bearing will fit the Gen 4 Performance Line CX, Cargo and Speed motors.
Bosch Generation 4 motor BDU4xx.