ZF 8HP75 Eight-Speed Automatic Transmission Assembly

High-torque, longitudinal rear-wheel-drive drivetrains using the ZF 8HP75 family. BMW identifies some versions as GA8HP75Z; AWD case and output arrangements differ. The replacement is a complete gearbox assembly, not a valve body or internal rebuild kit.

Specs:
Transmission family: ZF 8HP75, second generation
Forward/reverse: 8 forward / 1 reverse
Nominal reference input torque: 740 Nm (546 lb-ft)
First gear: 5.000:1
Direct gear: 6th, 1.000:1
Top gear: 0.640:1
Reverse: 3.478:1
Ratio spread: 7.813:1
Operation: Electronic hydraulic automatic with torque-converter starting device
Verification: Match OEM assembly number, bellhousing, output flange and control software