A powertrain is the system in a vehicle that generates power and delivers it to the wheels. It typically includes the engine, transmission, drivetrain, and other components that work together to move the vehicle. The engine produces power, while the transmission controls how that power is transferred to the wheels. In addition to the engine and transmission, the powertrain may also involve parts like the differential and axles. These components ensure that the vehicle operates efficiently and effectively, whether it’s a car, truck, or motorcycle. Understanding the powertrain is essential for diagnosing performance issues and improving vehicle efficiency.