Description
Spool Performance 8HP45 / 8HP50 / 8HP51 Billet 7075-T6 D Clutch Drum
The factory A380 cast-aluminum D-drum in ZF 8HP45, 8HP50, and 8HP51 transmissions is a known weak point when power levels rise. Common issues include cracking, distortion, and oil starvation under high-load or high-RPM clutch events.
Spool Performance solves these limitations with a CNC-machined billet 7075-T6 D Clutch Drum, engineered for extreme durability and precise hydraulic control in high-horsepower applications.
Why 7075-T6 Aluminum?
- Superior Strength: Aerospace-grade 7075-T6 offers ~74–78 ksi tensile strength versus ~46 ksi in OEM A380 cast aluminum.
- Lightweight Performance: About half the weight of steel, reducing rotational inertia while maintaining near-steel strength.
- Heat Dissipation: Conducts heat efficiently, stabilizing clutch pack temperatures during repeated high-load shifts.
- Anodized Hardness: Deep anodizing matches clutch steel hardness, preventing tooth deformation and enhancing reliability.
Precision Billet Machining
- Perfect roundness with no casting porosity
- Consistent wall thickness for uniform clutch pressure
- Zero structural voids for maximum durability
- Improved clutch apply stability at high line pressures
Enhanced Oil Pathways
- Re-engineered oil feeds and flow channels improve lubrication
- More efficient fluid delivery and cooling to clutch packs
- Reduces heat soak and prevents friction-surface distortion
Benefits
- Cleaner, faster, and more stable clutch engagement
- Increased tolerance to high horsepower, ethanol fuel, and heavy AWD setups
- Direct replacement for stock A380 D-drum
- Ideal for upgraded turbos, high-boost applications, and extreme performance builds
Fitment:
- ZF 8HP45 / 8HP50 / 8HP51 transmissions
Applications:
- High-power BMW, Dodge, Jeep, and other AWD/dual-clutch setups using ZF 8HP45/50/51
This billet 7075-T6 D Clutch Drum is the ultimate upgrade for builders seeking reliability, performance, and longevity under extreme transmission loads.
Note: 'New' merchandise may be returned for exchange or refund within 15 days from the date of shipment. 'New' merchandise must be unused and free from installation or mounting damage. Installation or modification of parts waives your right to returns, refunds, or exchanges.
