8HP50 / 8HP51 / 8HP45 Stage 1 DIY Kit | Transmission Rebuild Kits

Upgrade your ZF8HP transmission with the ATS Stage 1 DIY Transmission Rebuild Kit, designed for ZF 8HP50, ZF 8HP51, and compatible ZF 8HP45 applications. Built for enthusiasts and builders looking to increase clutch capacity, improve durability, and support higher horsepower applications, this complete rebuild package includes upgraded clutch components across all major clutch packs.

This kit combines Alto G3 friction materials, ATS proprietary steels, upgraded pressure plates, and our 7075 billet aluminum E hub to strengthen one of the most critical areas of the transmission.

Compatible Applications:
• ZF 8HP50
• ZF 8HP51
• ZF 8HP45 (Early models require a P3 sun gear to adapt to E-hub spline count. Sold separately.)

Included Components

C Clutch Components

• (1) Apply Plate
• (10) Alto G3 Clutch Fibers
• (1) ATS Pressure Plate
• (9) ATS Steels

E Clutch Components

• ATS 7075 Billet Aluminum E Hub
• (11) Alto G3 Clutch Fibers
• (1) ATS Pressure Plate
• (1) ATS Apply Plate
• (10) ATS Steels

A Clutch Components

• (6) Alto Clutch Fibers
• (1) ATS Pressure Plate
• (1) ATS Apply Plate
• (5) ATS Steels

B Clutch Components

• (6) Alto Clutch Fibers
• (1) ATS Apply Plate
• (1) ATS Pressure Plate
• (5) ATS Steels

D Clutch Components

• (5) Alto Clutch Fibers
• (1) ATS Pressure Plate
• (1) ATS Apply Plate
• (4) ATS Steels

Additional Components Included:
• Complete Seal / O-Ring Package
• Deeper OEM-style transmission pan with integrated filter

Whether you are refreshing a stock transmission or preparing for increased power levels, the ATS Stage 1 DIY kit delivers the upgraded components needed to strengthen the ZF 8HP platform while maintaining OEM-style functionality.