Centric 122.66042 Brake Drum - Rear

Overview of Centric Premium Brake Drum 122.66042

The Centric Premium Brake Drum 122.66042 is engineered for reliable braking performance on select Chevrolet, Pontiac, and Saturn vehicles. Designed to meet OEM specifications, this brake drum ensures consistent fit and function for models including the Chevrolet Equinox, Pontiac Torrent, Saturn Vue, and Aztek.

• Nominal drum diameter: 250.00 mm (9.843 inches)
• Maximum brake diameter (discard): 251.5 mm (9.902 inches)
• Outside diameter approximately 296 mm (11.65 inches)
• 5 bolt holes with a bolt circle diameter of 114.3 mm (4.5 inches)
• Mounting hole diameter: 14.224 mm (0.56 inches)
• Friction surface width: 55.0 mm (2.17 inches)
• Height: 73.9 mm (2.91 inches)
• Hub hole/register diameter: 70.6 mm (2.78 inches)
• Weight: 6.818 kg (15 lbs)
• Floating mounting type
• No outer cooling fins

About Centric Premium Brake Drums

The Centric Premium Brake Drums line is designed to provide a precise fit and reliable braking performance for a range of vehicles. This product line focuses on meeting or exceeding OEM standards, offering consistent dimensions and quality materials. The 122.66042 brake drum is part of this line, ensuring compatibility and durability for Chevrolet, Pontiac, and Saturn models that require this specific drum size and configuration.

Product Details and Specifications

This brake drum features a nominal diameter of 250 mm, with a maximum discard diameter of 251.5 mm, indicating the wear limit for safe operation. The outside diameter measures approximately 296 mm, providing the correct fit for the specified vehicles. The drum includes five bolt holes arranged on a 114.3 mm bolt circle diameter, matching the hub mounting pattern of the Chevrolet Equinox, Pontiac Torrent, Saturn Vue, and Aztek. The friction surface width of 55 mm ensures adequate contact area for brake shoes, while the floating mounting type allows for proper alignment and heat dissipation. The absence of outer cooling fins is consistent with the original equipment design for these models.

Common Applications and Problem Solving

• Replacement for worn or scored brake drums on Chevrolet Equinox, Pontiac Torrent, Saturn Vue, and Aztek
• Restores proper braking surface diameter to maintain effective stopping power
• Addresses brake pulsation caused by uneven drum wear
• Eliminates noise and vibration related to damaged or out-of-spec drums
• Ensures correct fitment for vehicles with 5-lug, 114.3 mm bolt pattern hubs

Installation Notes and Tips

• Verify vehicle compatibility with Chevrolet, Pontiac, or Saturn models listed before installation
• Inspect hub and wheel bearings for wear or damage during brake drum replacement
• Measure drum diameter to confirm it is within discard limits before installation
• Ensure proper torque on mounting bolts to manufacturer specifications
• Brake shoes should be inspected and replaced if worn to optimize braking performance

Quality Assurance and Warranty

Centric Premium Brake Drums are manufactured to meet or exceed OEM standards, ensuring consistent quality and durability. The 122.66042 brake drum undergoes rigorous testing for dimensional accuracy and material integrity. While specific warranty details are not provided here, Centric products typically include a limited warranty against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.