- Engine
- Komponen dan mekanisme mesin
- Sistem pendingin
- Sistem pelumasan
- Sistem pengapian
- Sistem bahan bakar konvensional bensin dan diesel
- Electronic Full Injection/EFI
- Common Rail/Diesel
- Gas buang
- Electrical
- Sistem Starter
- Sistem Penerangan
- Sistem pengisian & Batrai
- Power window & Door Lock
- Audio System
- Air Conditioner/AC
- Chasis
- Sistem kemudi
- Suspensi
- Transmisi manual & matic
- Pengecatan/Painting
- Pengelasan/Welding
- Kopling
- Roda (Spooring and Balancing)