Nugeon 99-02436B Disc Brake Caliper - Front Left

Front Left Reman Brake Caliper for BMW X3/X4

Nugeon 99-02436B is a remanufactured disc brake caliper for the front left position on select BMW X3 and BMW X4 models. It is supplied with a mounting bracket and installation-related brake hardware details that match the listed application, making it a direct-fit option for brake service on these vehicles.

The Nugeon Reman Caliper w/ Installation Hardware line focuses on remanufactured brake hydraulics built around application-specific fitment and OE-style mounting points. For BMW X3 and BMW X4 front left brake repairs, this part number 99-02436B is built to match the listed bracket and caliper casting references.

• Remanufactured disc brake caliper for the front left side
• Fits 2011-2017 BMW X3, front left
• Fits 2015-2018 BMW X4, front left
• Includes mounting bracket
• Grey caliper with rust preventative finish
• Cast iron housing with steel piston
• Bleeder screw included
• Caliper slides and dust boots included
• Brake pad installation hardware included where applicable
• Inlet and bleeder thread size: M10-1.0
• Bracket cast numbers: 703125 or 788 827
• Housing cast numbers: 703123 28/328 57

This front left BMW X3 caliper and BMW X4 caliper is built for brake hydraulic replacement where the original caliper has seized, leaked, or worn unevenly. The single-piston design uses a 57 mm steel piston and is finished with rust preventative coating to support long-term service in the brake system. Part number 99-02436B is a practical match for drivers and technicians servicing the front brake assembly on the listed BMW applications.

Common Brake Issues This Caliper Can Address

• Brake fluid leakage from a worn caliper body or seal area
• Uneven pad wear caused by sticking caliper slides or piston movement
• Dragging front brakes that create heat, noise, or reduced fuel economy
• Corrosion on the original caliper housing or bracket
• Soft or inconsistent braking response from a failing hydraulic caliper

Installation Notes and Tips

Verify the front left position, bracket style, and cast numbers before installation. Confirm M10-1.0 inlet and bleeder thread sizes, and inspect the brake hose connection, pads, and rotor condition during service. Bleeding the brake system after installation is required to remove air from the hydraulic circuit. Part number 99-02436B should be matched to the listed BMW X3 and BMW X4 fitment only.

Quality Assurance

This Nugeon remanufactured caliper is rebuilt for the specified BMW brake applications and inspected for fitment-critical components such as the bracket, piston, slides, dust boots, and bleeder screw. Use the cast numbers and vehicle fitment details to confirm application before installation.