BBB Industries 99-02321B Disc Brake Caliper - Front Left

Overview of BBB Industries Reman Caliper w/ Installation Hardware

The BBB Industries Reman Caliper w/ Installation Hardware (Part Number 99-02321B) is designed specifically for BMW 525i and 528i models. This remanufactured disc brake caliper offers reliable braking performance with included installation hardware for a streamlined replacement process.

• Remanufactured aluminum disc brake caliper with rust preventative finish
• Includes caliper slides, bleeder screw, dust boots, bracket, and installation hardware
• Compatible with BMW 525i and 528i models
• Caliper piston diameter: 60 mm (2 inches), single piston design
• Inlet fitting and bleeder screw thread size: M10-1.0

Detailed Product Features and Specifications

This remanufactured caliper features a durable aluminum casting and piston material, ensuring lightweight strength and corrosion resistance. The gray caliper finish provides rust prevention to extend service life. Included hardware consists of caliper slides, dust boots, a bleeder screw (M10-1.0 x 35), and a mounting bracket, though brake pads and anti-squeal shims are not included. The inlet fitting type is a plug with an M10-1.0 thread size, matching OEM specifications for proper brake line connection. The caliper bracket is cast with number 499 and the housing cast numbers are 60/22/296 and 91, confirming compatibility with the specified BMW models.

About the Reman Caliper w/ Installation Hardware Product Line

The Reman Caliper w/ Installation Hardware line from BBB Industries focuses on providing remanufactured brake calipers that come complete with essential installation components. This product line is designed to simplify brake system repairs by including necessary hardware such as caliper slides, dust boots, and bleeder screws, reducing the need for additional parts purchases. The 99-02321B caliper fits within this line by offering a reliable, remanufactured option tailored for BMW 525i and 528i vehicles.

Common Applications and Problem Resolution

• Replacement for leaking or seized calipers causing brake fluid loss
• Restores proper brake piston movement for consistent braking pressure
• Addresses uneven brake pad wear due to caliper malfunction
• Eliminates brake noise related to caliper hardware failure
• Improves brake system reliability and safety on BMW 525i and 528i models

Installation Notes and Tips

Ensure the brake system is fully depressurized before beginning installation. This caliper includes installation hardware but does not come with brake pads or anti-squeal shims, so verify pad condition prior to replacement. Use the included bleeder screw (M10-1.0 thread) to properly bleed the brake system after installation. Confirm that the caliper bracket and mounting points align correctly with the vehicle’s specifications. Follow manufacturer torque specifications for all mounting bolts (not included).

Quality Assurance and Warranty

BBB Industries remanufactured calipers undergo rigorous inspection and testing to meet OEM standards. The rust preventative finish and use of aluminum materials contribute to durability and corrosion resistance. While specific warranty details are not provided here, BBB Industries typically offers limited warranties on remanufactured brake components to ensure customer confidence and product reliability.