8HP70 8HP75 8HP76 Billet Main Shaft

Billet Main Shaft for the ZF 8HP70, 8HP75, and 8HP76 transmissions is engineered for high performance and extreme duty applications. Precision machined from premium 300M alloy steel, this shaft is heat-treated and hardened to deliver exceptional strength, durability, and resistance to torsional fatigue.

Designed as an upgraded replacement for the factory component, this billet main shaft features modified geometry to handle increased power levels and aggressive driving conditions commonly seen in high-horsepower street and race builds.

Ideal for performance enthusiasts and professional builders alike, this component provides the reliability and confidence needed when pushing the limits of the 8HP platform.

Key Features:

• Manufactured from high-strength 300M billet steel
• Heat-treated and hardened for maximum durability
• Upgraded design to support high horsepower and torque loads
• Direct fit for ZF 8HP70, 8HP75, and 8HP76 transmissions
• Engineered for street, track, and motorsport applications

8HP70 Applications: 

• Alpina B3 [F30 / F31]
• Alpina B3 [G20 / G21]
• Alpina D3 [F30 / F31]
• Alpina D3 [G20 / G21]
• Alpina B4 [F32 / F33]
• Alpina D4 [F32 / F33]
• Alpina XD4 [G02]
• BMW F30 / F31 330d / 335d
• BMW F32 430d / 435d
• BMW F10 / F11 5 Series
• BMW F01 / F02 7 Series
• BMW E70 X5 50i

8HP75 Applications: 

• BMW F90 M5
• BMW F91 M8
• BMW G11 750i
• BMW G15 M850i

8HP76 Applications: 

• BMW G80 M3
• BMW G82 M4
• BMW G83 M4
• BMW G87 M2
• BMW F90 M5 LCI