PowerStop L2640A Disc Brake Caliper - Rear Right

PowerStop Rear OE Stock Replacement Caliper Overview

The PowerStop - Rear OE Stock Replacement Caliper (Part Number L2640A) is designed to provide reliable braking performance for select BMW models. Engineered as a direct replacement for rear disc brake calipers, this component ensures consistent stopping power and durability.

• Compatible with BMW 320i, 323i, 325Ci, 325i, 325xi, 328Ci, 328i, and Z4 models
• Constructed from durable cast iron for long-lasting strength
• Single piston floating caliper design with a 39.93 mm steel piston
• Includes caliper slides and mounting bracket for proper fitment
• Gray finish with M8 x 1.25 bleeder screw thread size

PowerStop - Rear OE Stock Replacement Caliper Product Line

The PowerStop - Rear OE Stock Replacement Caliper line focuses on providing OEM-quality replacement parts that match original equipment specifications. This product line is tailored to restore braking system functionality with components that maintain factory fit, form, and function. The L2640A caliper is part of this line, offering a reliable solution for rear brake hydraulics on compatible BMW vehicles.

Detailed Product Description

This disc brake caliper features a cast iron construction that offers durability and resistance to wear under typical driving conditions. The floating caliper design utilizes a single steel piston with a diameter of 39.93 mm, which helps ensure even brake pad application and consistent braking force. Included caliper slides and a mounting bracket facilitate proper installation and alignment. The gray color finish provides corrosion resistance and a clean appearance. The bleeder screw thread size is M8 x 1.25, compatible with standard brake bleeding tools.

Common Applications and Problem Solving

• Replacement for worn or seized rear brake calipers on BMW 320i, 323i, 325Ci, 325i, 325xi, 328Ci, 328i, and Z4 models
• Addresses uneven brake pad wear caused by faulty caliper slides or pistons
• Resolves brake fluid leaks from damaged or corroded caliper pistons
• Improves braking response when original calipers have lost efficiency
• Restores proper brake function after caliper mounting bracket damage

Installation Notes and Tips

Ensure the brake system is properly depressurized before removing the old caliper. This caliper includes the mounting bracket and slides but does not come with additional mounting hardware, so verify you have the necessary bolts and tools. Use the correct M8 x 1.25 bleeder screw for brake fluid bleeding. Follow manufacturer torque specifications for mounting bolts to avoid damage. It is recommended to inspect brake pads and rotors during installation and replace if necessary.

Quality Assurance and Warranty

The PowerStop - Rear OE Stock Replacement Caliper (L2640A) is manufactured to meet OEM standards for fit and function. The cast iron construction and steel piston materials are selected for durability and consistent performance. While specific warranty details are not provided, PowerStop products typically adhere to industry quality controls to ensure reliability in automotive brake systems.