Audi Heavy Duty Aluminum Hat Brake Discs

Brake Discs Features:                                                   

•Equivalent to OE design 

•Smooth and quick stop 

•Anti-rust 

•Low noise, low dust 

•Optimal thermal performance 

•Reduces unsprung mass by ~15%, improving handling, acceleration, and ride comfort .

•Improves stability under high temperatures; floating design allows for thermal expansion, reducing the risk of warping and brake fade.

•Retains a high-carbon iron friction surface for strong, reliable stopping power, suitable for heavy-duty use.

•The floating connection can help minimize brake judder and noise for a smoother pedal feel.

1. Audi Heavy Duty Lineup: Q7, Q8, e-tron, A6 Allroad & A8

Our catalog covers the full Audi heavy duty lineup including Q7, Q8, e-tron, A6 Allroad, A8, A7, Q5, and S/RS performance models — ensuring the correct heavy duty aluminum hat brake disc for every popular Audi vehicle. Each part number is cross-referenced against Audi OE numbers for guaranteed fitment.

2. Heavy Duty Aluminum Hat: Lightweight Composite for Heavy Loads

These Audi heavy duty brake discs feature a lightweight composite construction with an aluminum alloy hat (hub) bonded to a high-carbon cast iron friction ring — reducing overall disc weight by up to 25% while maintaining the structural rigidity required for heavy duty applications. The aluminum hat provides superior heat dissipation and corrosion resistance, while the reinforced cast iron friction ring handles the extreme loads of Audi's heavier Q7, Q8, and e-tron models.

3. Enhanced Heat Dissipation: Aluminum Hat for Improved Thermal Management

The aluminum alloy hat provides significantly enhanced thermal conductivity compared to traditional cast iron hubs, dissipating heat more efficiently from the brake assembly and reducing operating temperatures by up to 18% during heavy braking — critical for Audi's heavy duty vehicles that generate increased thermal load due to their higher vehicle weight. The improved heat dissipation reduces brake fade, extends pad and disc service life, and maintains consistent braking performance even during repeated heavy braking from high speeds.

4. Weight Reduction & Durability: Lower Unsprung Mass with Heavy Duty Strength

By replacing the heavy cast iron hub with lightweight aluminum alloy, these brake discs reduce unsprung mass by up to 25% — improving suspension response, steering precision, and overall vehicle handling — while the reinforced high-carbon cast iron friction ring maintains the heavy duty strength and durability required for Audi's larger vehicles. The combination of lightweight aluminum hat and heavy duty friction ring provides the best of both worlds: the weight savings and thermal benefits of aluminum with the proven durability and braking performance of high-carbon cast iron.

• 100% critical dimensions, runout and DTV inspection 

• Material physical and chemical inspection

• Test shear strength, compressibility, density, flatness and parallelism 

• Test performance and noise/NVH