Centric 123.66045 Brake Drum - Rear

Overview of Centric C-TEK Standard Brake Drum 123.66045

The Centric C-TEK Standard Brake Drum 123.66045 is engineered for reliable braking performance on Chevrolet and GMC trucks. Designed specifically for the Sierra 1500 and Silverado 1500 models, this brake drum meets precise specifications to ensure proper fit and function.

• Compatible with Chevrolet Sierra 1500 and GMC Silverado 1500
• Part number 123.66045 for accurate identification
• Nominal drum diameter of 11.614 inches (295.0 mm)
• Outside diameter of 13.209 inches (335.5 mm)
• Friction surface width of 3.0 inches (76.2 mm)
• 6 bolt holes with a bolt circle diameter of 5.5 inches (139.7 mm)
• Floating mounting type with 0.650 inch (16.5 mm) mounting hole diameter
• Weight approximately 24.85 lbs (11.295 kgs)

Detailed Product Description

This Centric C-TEK Standard Brake Drum 123.66045 is manufactured to meet OEM specifications for Chevrolet Sierra 1500 and GMC Silverado 1500 trucks. The drum features a nominal diameter of 11.614 inches (295 mm) and an outside diameter of 13.209 inches (335.5 mm), providing the correct size for optimal brake shoe contact. The friction surface width of 3 inches (76.2 mm) ensures consistent braking performance and heat dissipation. With six bolt holes arranged on a 5.5-inch (139.7 mm) bolt circle diameter, installation aligns precisely with factory mounting points. The floating mounting type and mounting hole diameter of 0.650 inches (16.5 mm) support secure attachment and proper drum rotation. Weighing approximately 24.85 lbs (11.295 kgs), this brake drum balances durability and ease of handling.

The Centric C-TEK Standard Brake Drums product line focuses on providing dependable, standard replacement brake components that meet or exceed OEM requirements. This line is designed for professional mechanics and vehicle owners seeking reliable brake drums that maintain factory fitment and performance standards.

Common Applications and Problem Solving

• Replacement for worn or scored brake drums on Chevrolet Sierra 1500 and GMC Silverado 1500
• Addresses brake pulsation caused by uneven drum surfaces
• Resolves noise issues related to damaged or out-of-spec drums
• Restores proper brake shoe contact for consistent stopping power
• Prevents brake fade due to insufficient friction surface width

Installation Notes and Tips

• Verify part number 123.66045 matches vehicle specifications before installation
• Inspect mounting surfaces and hardware for wear or damage prior to installation
• Ensure proper torque on all six bolts to factory specifications
• Check drum diameter and friction surface for wear limits before reuse
• Use appropriate brake cleaning solvents to remove contaminants before assembly

Quality Assurance and Warranty

Centric C-TEK Standard Brake Drums are manufactured under strict quality control standards to ensure durability and performance. Each brake drum undergoes dimensional inspections and material testing to meet OEM specifications. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Consult product documentation or authorized distributors for warranty terms related to part number 123.66045.