9J1615602B Ceramic brake discs for Audi e-tron GT

The part number 9J1615602B refers to the Rear Carbon Ceramic (CCB) Brake Disc for the Audi e-tron GT (F83) and RS e-tron GT. Because the e-tron GT shares the J1 performance platform with the Porsche Taycan, this component is often cross-listed for both vehicles.

Technical Specifications

Key Features of the 9J1615602B Disc

• Thermal Stability: These discs are designed to operate at temperatures exceeding $1000\text{°C}$ without fading, which is critical for the high-weight, high-torque nature of the RS e-tron GT.

   

• Weight Reduction: Despite the massive $410\text{mm}$ size, a ceramic disc is approximately 50% lighter than a cast-iron equivalent ($~6\text{kg}$ to $7\text{kg}$ vs $12\text{kg}+$), significantly improving suspension response and unsprung mass.

   

• Service Life: Under normal road use, these discs are designed to last the lifetime of the vehicle (often cited at 300,000 km), though they are sensitive to physical impact (chipping) and specific track-day heat cycles.

Fitment & Complementary Parts

• Matching Caliper: Typically paired with the 4-piston Akebono rear ceramic caliper (often finished in Orange or Anthracite/Gray).

   

• Opposite Side: The left-hand rear disc generally carries the part number 9J1615601B.

• Wheel Requirement: Due to the $410\text{mm}$ rear diameter (and even larger $420\text{mm}$ front), a minimum of 21-inch wheels is usually required for clearance, though some 20-inch wheels designed for the Taycan/e-tron GT platform may fit depending on the barrel profile.

Inventory Note for Buy Mustang parts Ltd

If you are adding this to your digital catalog, ensure you emphasize the Porsche Taycan cross-compatibility. Many Porsche owners search for Taycan Turbo S rear rotors using the “9J1” prefix, and having both Audi and Porsche tags will significantly improve your SEO for this high-value item.