LDU Motor and Reduction Box Rebuild and Repair Kit

Restore your Tesla Large Drive Unit Motor and Reduction Box to proper operating condition with this bearing and gasket kit.

This kit combines genuine SKF bearings with high-quality sealing components, making it ideal for professional workshops and experienced EV technicians performing LDU and reduction box rebuilds.

Common Problems This Kit Solves

• Coolant leaks into the motor or inverter

• Whining / grinding noises caused by worn rotor or gearbox bearings

• Insulation faults leading to HV isolation errors

Kit Contents 

Bearings (SKF – genuine & authenticated):

• 2× SKF hybrid ceramic rotor bearings

• 2× SKF bearings for the primary shaft

• 2× SKF reduction box main differential high-speed bearing

• 2× SKF reduction box countershaft high-speed bearings

Seals & Gaskets:

• 1× Rotor PTFE cooling seal

• 1× Gearbox oil seal

• 2× Output shaft seals
  

Vehicle Compatibility

• Tesla Model S (2012–2021)

• Tesla Model X (2015–2021)
  Versions: 60, 60D, 70, 70D, 75, 75D, 85, 85D, 90, 90D, 100D
  Performance: P85D, P90D, P100D

• Mercedes-Benz B-Class Electric Drive (B250e) (2014–2017)

• Toyota RAV4 EV (2012–2014)

Key Features

• Genuine SKF bearings, verified via SKF Authenticate app

• High-temperature and chemical-resistant sealing materials

• Designed specifically for high-voltage EV motor and LDU repairs

• Prevents repeat failures caused by coolant ingress

• Suitable for LDU rebuilds and preventive maintenance

Included Support

• ✔ Step-by-step repair manual

• ✔ Video tutorial for professional or advanced DIY installation