Wilwood Rotor 12blt 1.29 x 12.6 in L/H Dirc GT48 WIL160-8747

The Wilwood GT48 Directional Brake Rotor (Part #160-8747) is a premium racing brake rotor engineered for extreme braking performance in professional motorsports and high-performance applications. Featuring a 12.60-inch outside diameter, 1.29-inch nominal thickness, and a left-hand (driver side) directional curved vane design, this rotor provides exceptional cooling efficiency, thermal stability, and consistent braking under the most demanding conditions.

Manufactured from Wilwood's proprietary Spec-37 high-carbon iron alloy, the GT48 rotor is specifically designed to resist distortion, warping, cracking, and excessive wear during repeated high-temperature braking cycles. Its 48 curved internal vanes maximize airflow through the rotor, while the GT asymmetrical slotted face continuously cleans the brake pads and evacuates gases for improved pedal feel and braking consistency. Each rotor is individually dynamically balanced to reduce vibration and deliver smooth operation at high speeds.

Ideal for road racing, stock cars, late model racing, rally, off-road competition, heavy-duty street performance, and industrial applications, the Wilwood 160-8747 rotor delivers the durability and stopping power expected from Wilwood Engineering.

Key Features

• Genuine Wilwood Engineering GT48 brake rotor
• Left-hand (driver side) directional rotor
• Proprietary Spec-37 high-carbon iron construction
• GT asymmetrical slotted friction surface
• 48 curved internal cooling vanes
• Dynamic factory balancing for vibration-free operation
• Excellent resistance to heat checking, cracking, and warping
• High cooling capacity for endurance and racing applications
• Suitable for heavy-duty street and motorsports use
• Direct replacement for compatible Wilwood GT brake systems

Specifications

Specifications verified from Wilwood's official product data.

Package Includes

• 1 × Wilwood GT48 Left-Hand Directional Brake Rotor (160-8747)

Compatibility

Designed for Wilwood GT Series brake systems utilizing a 12.60-inch, 12-bolt rotor with a 7.00-inch bolt circle. Compatible with numerous racing and custom performance brake applications. Always verify your brake hat, rotor dimensions, mounting pattern, and left/right orientation before ordering.

Benefits

• Exceptional heat dissipation for consistent braking
• Longer rotor life under severe racing conditions
• Reduced brake fade during repeated hard stops
• Improved pad cleaning and gas evacuation
• Precision-balanced for smooth high-speed performance
• Engineered for professional motorsports and heavy-duty performance vehicles