Centric 123.66018 Brake Drum - Rear

Reliable Brake Drum Replacement for Chevrolet and GMC Trucks

The Centric C-TEK Standard Brake Drum 123.66018 is engineered to meet the braking demands of Chevrolet and GMC heavy-duty trucks. Designed for models like the Chevrolet C2500, Express 2500, K1500, K2500, and GMC Savana 2500, this brake drum ensures consistent performance and durability under rigorous conditions.

• Compatible with Chevrolet C2500, Express 2500, K1500, K2500, and GMC Savana 2500
• Part number 123.66018 for precise identification
• Outside diameter of 13.620 inches (345.948 mm) with outer cooling fins for heat dissipation
• Nominal drum diameter of 11.150 inches (283.200 mm) and maximum discard diameter of 11.240 inches (285.500 mm)
• Six bolt holes with a bolt circle diameter of 5.500 inches (139.700 mm)
• Floating mounting type with mounting hole diameter of 0.620 inches (15.750 mm)
• Friction surface width of 3.220 inches (81.788 mm) for effective braking contact
• Height of 5.320 inches (135.128 mm) and hub hole diameter of 3.090 inches (78.486 mm)
• Weight approximately 40 lbs (18.182 kgs) for balanced installation

About the C-TEK Standard Brake Drums Line

The C-TEK Standard Brake Drums line by Centric offers dependable brake components designed to meet OEM specifications. This product line focuses on delivering consistent braking performance with features such as outer cooling fins to reduce heat buildup and floating mounting types for easier installation. The 123.66018 brake drum is part of this line, providing a reliable replacement option for Chevrolet and GMC trucks requiring precise fitment and durability.

Product Details and Specifications

This brake drum features an outside diameter of 13.620 inches (345.948 mm) and a nominal drum diameter of 11.150 inches (283.200 mm), ensuring compatibility with the specified Chevrolet and GMC models. The six-bolt hole configuration with a 5.500-inch (139.700 mm) bolt circle diameter matches factory mounting requirements. Outer cooling fins are integrated to help dissipate heat during braking, reducing the risk of brake fade. The friction surface width of 3.220 inches (81.788 mm) provides ample contact area for brake shoes, contributing to effective stopping power. The floating mounting type simplifies installation and alignment, while the drum’s weight of 40 lbs (18.182 kgs) supports balanced wheel rotation.

Common Applications and Problem Solving

• Replacement for worn or scored brake drums on Chevrolet C2500 and GMC Savana 2500
• Restores braking performance on Chevrolet K1500 and K2500 trucks experiencing reduced stopping power
• Addresses brake noise and vibration caused by damaged or warped drums
• Helps prevent brake fade through improved heat dissipation with outer cooling fins
• Supports safe operation of Express 2500 vans with reliable drum integrity

Installation Notes and Tips

• Verify compatibility with vehicle make and model before installation
• Inspect brake shoes and hardware for wear and replace as necessary during drum installation
• Ensure mounting holes and bolt circle diameter align correctly for secure fitment
• Use proper torque specifications on mounting bolts to avoid drum distortion
• Check drum surface for smoothness and clean before assembly to prevent premature wear

Quality Assurance and Warranty

Centric’s C-TEK Standard Brake Drums are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. While specific warranty details for part number 123.66018 should be confirmed with the supplier, Centric typically offers coverage against defects in materials and workmanship to support customer confidence in their brake components.