Tesla unveils Megamanifold heat pump and new drivetrain for Semi

Tesla detailed the production Semi's hardware: the Megamanifold heat pump unifies cabin HVAC with battery and motor thermal management, while the drivetrain switches to steel-caged rotors and Cybertruck-derived bar-wound stators. Efficiency is roughly 1,700 Wh/mile, with 300 miles of range added in 30 minutes on 1.2 MW Megachargers.

• Megamanifold runs cabin HVAC and powertrain thermal management at once
• Steel-caged rotors replace carbon fiber: cheaper and more durable
• 48-volt electric steering replaces hydraulics, a first for heavy trucks
• About 1,700 Wh/mile; 300 miles of range in 30 minutes on Megachargers