EBC GD989 3GD Series Slotted and Dimpled Sport Brake Rotors

The EBC GD989 3GD Series Sport Rotors deliver enhanced braking performance for demanding driving conditions. These front vented rotors feature 303mm diameter, 26mm thickness, 5 bolt holes, 51mm height, and 67mm center hole diameter, designed specifically for Mercedes-Benz applications.

Advanced Cooling Technology:

The wide-aperture slots continually sweep the braking zone, drawing cooler air into the pad-rotor interface and venting away gases and debris particles. Testing shows 3GD rotors run up to 100 degrees F cooler than non-slotted rotors, significantly reducing brake fade during high-performance driving, trailer towing, or track use.

Dimple Technology:

EBC's proprietary dimple drilling provides pad degassing benefits without through-drilling holes that promote stress cracks, as dimples don't penetrate all the way through the rotor's surface. This innovation maintains structural integrity while improving brake performance.

Premium Construction:

• Cast from high-carbon G3000 rotor alloy with excellent thermal capacity and high resistance to warping and cracking
• TÜV and R90 approved, meeting European brake safety standards
• Machined using twin-turning process for near-perfect parallelism and tested for runout to strict tolerances
• Double-finished with Geomet coating plus anti-corrosion black coating for maximum rust protection
• Slots maintain flat and parallel pad wear, improving pad contact and braking throughout rotor life

Directional Design:

These rotors are directional—the sweeping grooves and spotted pattern should point to the rear of the vehicle. Note that slotted rotors may produce increased air noise during normal driving and braking compared to standard rotors.

Sold as a pair for front axle installation. Ideal for enthusiasts seeking improved braking performance with enhanced looks and superior corrosion resistance.