Centric 121.66048 Disc Brake Rotor - Rear

Reliable Disc Brake Rotor for Buick, Oldsmobile, and Pontiac

The Centric C-TEK Standard Disc Brake Rotor 121.66048 is engineered to provide consistent braking performance for select Buick, Oldsmobile, and Pontiac models. Designed as a solid rotor with a smooth surface, it meets the specifications required for vehicles like the Aztek, Montana, Rendezvous, and Silhouette.

• Compatible with Buick Aztek, Oldsmobile Silhouette, Pontiac Montana, and Rendezvous
• Part Number: 121.66048
• Solid disc brake rotor with smooth surface finish
• Outside diameter: 11.417 inches (290 mm)
• Nominal thickness: 0.433 inches (11.000 mm)
• Discard thickness: 0.354 inches (9.000 mm)
• Overall height: 1.831 inches (46.500 mm)
• 5 lug holes with 0.551 inch (14.000 mm) diameter
• Center hole diameter: 2.768 inches (70.300 mm)
• Mounting bolt hole circle diameter: 4.500 inches (114.300 mm)
• Weight approximately 12.5 lbs (5.68 kgs)

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric is designed to meet OEM specifications for standard braking applications. This product line focuses on delivering reliable, consistent braking performance with rotors that feature a smooth surface and solid construction. The 121.66048 rotor is part of this line, ensuring compatibility and durability for your Buick Aztek, Oldsmobile Silhouette, Pontiac Montana, and Rendezvous models.

Detailed Product Description

This Centric disc brake rotor is a solid type rotor with a smooth surface, engineered for vehicles requiring precise fitment and dependable braking. The rotor measures 11.417 inches in outside diameter and has a nominal thickness of 0.433 inches, with a discard thickness of 0.354 inches, indicating when replacement is necessary. The overall height of 1.831 inches ensures proper alignment with the brake caliper assembly. It features a 5-lug hole pattern with a 4.5-inch bolt circle diameter and a center hole diameter of 2.768 inches, matching the hub specifications of the compatible vehicles. This rotor does not include an ABS tone ring or bearings, so it is intended for use with existing vehicle components.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors causing brake pulsation
• Restores proper braking performance on Buick Aztek, Oldsmobile Silhouette, Pontiac Montana, and Rendezvous
• Eliminates noise and vibration from uneven rotor surfaces
• Addresses rotor thickness below discard limits to maintain safety
• Suitable for vehicles requiring solid, smooth surface rotors

Installation Notes and Tips

• Ensure rotor thickness is measured before installation to confirm discard limits
• Clean rotor surface and hub mounting area to prevent uneven wear
• Torque lug nuts to manufacturer specifications for proper fitment
• Check compatibility with existing brake pads and calipers
• Verify absence of ABS tone ring requirement for your vehicle

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet or exceed OEM standards for fit, form, and function. While specific warranty details for part number 121.66048 are not provided here, Centric typically offers coverage against defects in materials and workmanship. For exact warranty terms, consult Centric documentation or authorized distributors.