Spool Billet 300M C-Hub Cog Drive – ZF 8HP70/75/76 BMW

Spool Billet 300M C-Hub Cog Drive for ZF 8HP70/75/76 replaces the factory cast-steel C-hub with a CNC-machined 300M alloy-steel component.

• Ultra-high-strength billet 300M alloy steel
• Improved fatigue and shock-load resistance
• Precision-machined cog geometry for consistent torque transfer
• Designed for upgraded clutches, elevated line pressure and high-torque builds

Fitment: ZF 8HP70, 8HP75 and 8HP76. Confirm transmission code before ordering.

Dispatch: Special order — allow 2–3 weeks.

Supplier

Spool Performance

Product System

• Transmission & Driveline

Vehicle Fitment

• BMW M2 G87 S58 ZF 8HP76
• BMW M3 G80 S58 ZF 8HP76
• BMW M3 G81 S58 ZF 8HP76
• BMW M4 G82 S58 ZF 8HP76
• BMW M4 G83 S58 ZF 8HP76
• BMW M5 F90 S63 ZF 8HP75
• BMW M8 F91 S63 ZF 8HP75
• BMW M8 F92 S63 ZF 8HP75
• BMW M8 F93 S63 ZF 8HP75
• BMW X3M F97 S58 ZF 8HP75
• BMW X4M F98 S58 ZF 8HP75
• BMW X5M F95 S63 ZF 8HP75
• BMW X6M F96 S63 ZF 8HP75

Confirm chassis, engine, drivetrain and production-year compatibility before ordering.

Supplier Part Number

SP-8HP7X-UCD

Built by Boost & Tune Support

BBT can assist with fitment review, installation, supporting modifications, configuration and calibration requirements where applicable.