Centric 121.62109 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.62109

The Centric C-TEK Standard Disc Brake Rotor 121.62109 is engineered for reliable braking performance on Chevrolet and Saturn Astra models. Designed as a solid rotor with a smooth surface, it provides consistent stopping power and durability for everyday driving conditions.

• Compatible with Chevrolet Astra and Saturn Astra vehicles
• Part number 121.62109 for precise identification
• Solid disc brake rotor with smooth surface finish
• Outside diameter of 10.386 inches (263.8 mm)
• Nominal thickness of 0.394 inches (10.0 mm) and discard thickness of 0.315 inches (8.0 mm)
• Overall height measures 1.661 inches (42.2 mm)
• Floating disc mounting design with 5 lug holes (0.559 inches / 14.2 mm diameter)
• Center hole diameter of 2.579 inches (65.5 mm) and mounting bolt hole circle diameter of 4.331 inches (110 mm)
• Weight approximately 8.6 lbs (3.91 kgs)
• ABS tone ring not included; bearings not included

Detailed Product Description

This Centric C-TEK Standard Disc Brake Rotor 121.62109 is a solid rotor designed to meet the braking requirements of Chevrolet and Saturn Astra vehicles. The rotor features a smooth surface type that ensures even pad contact and consistent braking performance. With a nominal thickness of 0.394 inches (10.0 mm) and a discard thickness of 0.315 inches (8.0 mm), this rotor provides a clear service life indicator to maintain safe braking operation. The overall height of 1.661 inches (42.2 mm) and an outside diameter of 10.386 inches (263.8 mm) are engineered to match factory specifications for proper fitment and function.

The rotor uses a floating disc mounting design and includes five stud/lug holes with a diameter of 0.559 inches (14.2 mm), arranged on a mounting bolt hole circle diameter of 4.331 inches (110 mm). The center hole diameter of 2.579 inches (65.5 mm) ensures proper alignment on the hub. This rotor does not include an ABS tone ring or bearings, so it is intended for vehicles where these components are either not required or are reused from the original assembly.

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors designed to meet OEM specifications for fit, form, and function. This product line focuses on providing solid rotors with smooth surfaces that deliver consistent braking performance for daily driving applications. The 121.62109 rotor is part of this line, ensuring compatibility and reliable operation for Chevrolet and Saturn Astra models requiring standard replacement rotors.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below manufacturer discard limits
• Resolving uneven brake pad wear due to rotor surface imperfections
• Improving braking consistency on Chevrolet Astra and Saturn Astra vehicles
• Restoring proper rotor dimensions for safe and effective braking

Installation Notes and Tips

• Verify rotor part number 121.62109 matches vehicle specifications before installation
• Inspect hub and mounting surfaces for cleanliness and damage prior to rotor installation
• Ensure proper torque on lug nuts to manufacturer specifications to avoid rotor warping
• Replace brake pads when installing new rotors to optimize braking performance
• Check rotor thickness with a micrometer to confirm it meets nominal thickness and discard limits

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards for quality and durability. While specific warranty details for part number 121.62109 should be confirmed with the supplier, Centric generally provides coverage against defects in materials and workmanship. This rotor is engineered to deliver consistent braking performance and long service life when installed and maintained according to vehicle manufacturer guidelines.