Tesla

Model S/X

Drive Units

• Small Drive Unit ("SDU")
• Large Drive Unit ("LDU")

Other HV systems

• L2 Charger (gen 2)
• Front HVJB (gen 2 - Model S only)
• DC-DC converter (gen 2)
• A/C compressor (gen 1)
• Battery heater (Model S only)

Model 3/Y

Drive Units

• Front Drive Unit
• Rear Drive Unit

Other HV systems

• Battery
• Contactors
• L2 Charger & DC-DC ("PCS")

Resources

• Tesla CAD Models
• Tesla EPC (Electronic Parts Catalogue)

Sourcing Tesla Drive Units

2012-2017* Model S/X Drive Units

Trim Designation	Front Drive Unit	Rear Drive Unit
##	N/A	Base LDU
P##	N/A	Sport** LDU
##D	SDU	SDU
P##D	SDU	Sport LDU
* Depending on the source, in either 2017 or 2019 Tesla began changing drive unit selections in the Model S and X **UPDATED 6 May 2021: Based on thread found here: Teardown - Tesla LDU - Inverter - openinverter forum, the base and sport LDUs use different IGBTs

SDU: Small Drive Unit (note: there are two different cases for the SDU, front and rear)

LDU: Large Drive Unit