Centric 121.38019 Disc Brake Rotor - Rear

Reliable Disc Brake Rotor for Cadillac and Saab Vehicles

The Centric C-TEK Standard Disc Brake Rotor 121.38019 is engineered to provide consistent braking performance for select Cadillac and Saab models. Designed with precision, this vented rotor ensures effective heat dissipation and smooth braking response.

• Compatible with Cadillac and Saab 9-3 and BLS models
• Vented disc brake rotor with smooth surface finish
• Nominal thickness of 0.787 inches (20.000 mm) and discard thickness of 0.709 inches (18.000 mm)
• Overall height of 1.634 inches (41.500 mm) and outside diameter of 11.496 inches (292.000 mm)
• Floating disc mounting with 5 lug holes and 3 additional miscellaneous holes
• Straight vane style for efficient cooling
• Center hole diameter of 2.579 inches (65.500 mm) and mounting bolt hole circle diameter of 4.331 inches (110.000 mm)
• Weight approximately 12 lbs (5.45 kgs)

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers reliable replacement rotors designed to meet or exceed OEM specifications. This product line focuses on providing rotors with precise dimensions and quality materials to ensure proper fitment and consistent braking performance. The 121.38019 rotor is part of this line, featuring vented construction and a smooth surface to maintain effective heat dissipation and reduce brake fade during operation.

Technical Details and Performance Features

This Centric rotor features a vented design with straight vanes that promote airflow and help dissipate heat generated during braking. The smooth surface type ensures even pad contact and reduces noise and vibration. The floating disc mounting style allows for slight movement to accommodate thermal expansion, improving rotor longevity. With a nominal thickness of 0.787 inches and a discard thickness of 0.709 inches, this rotor provides a clear service life indicator to maintain safe braking performance. The rotor’s dimensions, including an outside diameter of 11.496 inches and a center hole diameter of 2.579 inches, are engineered for precise fitment on compatible Cadillac and Saab 9-3 and BLS models.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing reduced braking efficiency due to rotor thickness below discard limits
• Resolving noise and vibration issues from uneven rotor surfaces
• Improving heat dissipation to prevent brake fade during extended use
• Ensuring proper fitment for Cadillac and Saab 9-3 and BLS vehicles

Installation Notes and Tips

Before installation, verify rotor dimensions against vehicle specifications to ensure compatibility. Clean the rotor surface to remove any protective coatings or contaminants. Use proper torque specifications for mounting bolts and inspect related components such as wheel bearings and brake pads for wear. Since this rotor does not include bearings or an ABS tone ring, ensure these components are compatible or replaced separately if necessary.

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards and OEM specifications. While specific warranty details for part number 121.38019 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Refer to Centric’s official documentation for complete warranty information.