Motor & Reduction Box Rebuild Kit

This repair kit is designed to address a common bearing failure in Hyundai electric drive systems, including the e-axle motor and reduction gearbox. Instead of replacing the entire motor or gearbox, the damaged bearings can be replaced directly, significantly reducing repair time and overall cost.

The kit includes high-quality deep groove ball bearings, available in NTN deep groove ball bearings or premium SKF ceramic bearings, engineered for the high rotational speeds typical in electric vehicle drive units.

Sealed bearing construction protects against contamination and prevents lubricant leakage, ensuring long service life and reliable operation. With high precision manufacturing, optimized internal geometry, and durable materials, these bearings deliver excellent wear resistance and stable performance across a wide temperature range.

This kit provides a cost-effective and professional repair solution for Hyundai Kona EV drivetrains, helping restore reliable operation without replacing the entire drivetrain assembly. 

Kit Includes

• SKF or NTN Rotor bearings - 2pcs.
• Metal shims for Rotor bearings - 2 pcs.
• SKF Tapered bearings - 2 pcs. 
• SKF Ball bearings - 4 pcs. 
• KIA / Hyundai Original Oil seals - 3 pcs.
• JRSpec Extra Strong Gearbox Magnetic Oil Drain Plug - 1 pc (optional)

Important Maintenance Note!

⚠️ NB! We strongly recommend changing the oil every 20,000–30,000 km, depending on driving conditions, load, and climate.

Regular oil replacement ensures optimal lubrication, reduces wear and thermal stress on internal components, and extends the overall service life of the reduction gearbox. 

This cost-effective maintenance procedure helps prevent premature component failure and reduces long-term repair costs.