Centric 121.38020 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.38020

The Centric C-TEK Standard Disc Brake Rotor 121.38020 is engineered for reliable braking performance on select Cadillac and Saab vehicles. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and smooth braking for models like the Cadillac BLS and Saab 9-3.

• Compatible with Cadillac BLS and Saab 9-3 models
• Part number 121.38020 for precise identification
• Vented disc design with straight vane style for improved cooling
• Nominal thickness of 1.102 inches (28.000 mm) and discard thickness of 0.984 inches (25.000 mm)
• Overall height of 1.783 inches (45.300 mm) and outside diameter of 12.362 inches (314.000 mm)
• Floating disc mounting with 5 lug holes and 3 additional miscellaneous holes
• Smooth surface type for consistent pad contact

Product Line Details: C-TEK Standard Disc Brake Rotors

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors manufactured to meet or exceed OEM standards. This product line focuses on providing reliable, direct replacement rotors with precise fitment and consistent performance. The 121.38020 rotor features a vented design with straight vanes to enhance heat dissipation, helping maintain braking efficiency under normal driving conditions for Cadillac and Saab vehicles.

Technical Specifications and Features

This disc brake rotor has a nominal thickness of 1.102 inches (28.000 mm) and a discard thickness of 0.984 inches (25.000 mm), indicating the minimum thickness before replacement is necessary. The rotor’s overall height measures 1.783 inches (45.300 mm), and it has an outside diameter of 12.362 inches (314.000 mm). It includes a floating disc mounting system and features 5 stud/lug holes with a diameter of 0.559 inches (14.200 mm) arranged on a 4.331 inch (110.000 mm) bolt circle diameter. The rotor weighs approximately 21.15 lbs (9.61 kgs) and has a smooth surface type to ensure even pad wear. Note that this rotor does not include an ABS tone ring or bearings.

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 or vibration issues related to uneven rotor surfaces
• Upgrading to OEM-spec vented rotors for improved heat dissipation
• Ensuring proper fitment on Cadillac BLS and Saab 9-3 models

Installation Notes and Tips

When installing the Centric C-TEK Standard Disc Brake Rotor 121.38020, ensure the rotor surface is clean and free of any contaminants before mounting. Verify the rotor thickness is above the discard thickness specification to maintain safety and performance. Use the correct torque specifications for the 5 lug nuts and confirm the floating disc mounting is properly aligned. Since this rotor does not include bearings or an ABS tone ring, reuse existing components or replace separately as needed.

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet OEM quality standards, ensuring consistent performance and durability. While specific warranty details for part number 121.38020 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Always consult product documentation or Centric directly for warranty terms applicable to this rotor.