Centric 120.42106 Premium Blank Brake Rotor with E-Coat Finish

The Centric 120.42106 Premium Brake Rotor is a blank, one-piece, direct replacement disc engineered for factory brake systems. Manufactured under QS and ISO quality system standards, this rotor features a distinctive black electrocoating finish and is ideal for daily driving, fleet, and emergency vehicle applications where a straightforward OE-quality replacement is required.

Key Features:

• E-Coat Corrosion Protection: An electrostatically applied e-coating finish provides superior rust resistance, rated to withstand 400 hours of saltwater exposure — far exceeding the minimal protection offered by standard competitor finishes. Unlike many coatings that degrade once installed, the e-coat maintains its integrity against heat and moisture.
• Double Disc Ground Braking Surface: The friction surface is double disc ground to a taper-free, non-directional finish, ensuring precise parallelism, eliminating runout, and delivering near-perfect disc thickness variation (DTV). This finish promotes more effective pad-to-rotor break-in and contributes to quieter, smoother stops.
• Fully Machined Hat: The rotor hat receives a 100% fully machined finish for improved balance and a clean, high-quality appearance.
• Center-Split Casting: Cooling vanes are produced using center-split core castings that ensure uniform vane thickness at both the inner and outer friction plate connection points. This symmetrical design promotes even heat transfer from both friction surfaces into the cooling vanes, maximizing thermal efficiency and sustained braking performance.
• Mill Balanced: Each rotor undergoes mill balancing during production to minimize vibration and ensure smooth, consistent braking feel.
• OE Direct Fit: Designed as a direct replacement for factory brake systems — no modifications required.

The Centric 120.42106 is part of Centric's Premium rotor line, sharing the same advanced manufacturing processes as StopTech, Power Slot, and SportStop performance rotors. It delivers a significant upgrade in durability and finish quality over standard stock rotors while maintaining a straightforward, bolt-on installation.