Nugeon 99-02122B Disc Brake Caliper - Front Left

Reman Front Left Brake Caliper for Audi and Volkswagen

Nugeon 99-02122B is a remanufactured disc brake caliper for front left applications on select Audi and Volkswagen models. It is built with an aluminum casting, grey rust-preventative finish, and the mounting bracket and brake pad installation hardware specified in the product data.

The Nugeon Reman Caliper w/ Installation Hardware line focuses on direct-fit brake hydraulics replacement parts with the key service pieces needed for a cleaner brake repair. For shoppers searching for a front left brake caliper for Audi A6 Quattro, Audi Allroad Quattro, Audi A8 Quattro, Audi S4, Audi S6, or Volkswagen Passat, part number 99-02122B matches the listed OE-style configuration.

• Remanufactured disc brake caliper for front left position
• Aluminum casting with rust-preventative grey finish
• Bracket included for the listed applications
• Bleeder screw included; M10-1.0 inlet and bleeder thread size
• Dust boots and caliper slides included
• Dual aluminum pistons with 43 mm outside diameter
• Banjo bolt and copper crush washers included where applicable

Detailed Product Overview

This Nugeon brake caliper is engineered for front left fitment on 1999-2005 Audi A8 and A8 Quattro, 2000-2004 Audi A6 Quattro, 2000-2002 Audi S4, 2002-2003 Audi S6, 2001-2005 Audi Allroad Quattro, and 2002-2004 Volkswagen Passat applications listed in the fitment data. The remanufactured design restores the caliper housing, piston operation, and hydraulic connection points for service replacement on vehicles using the specified bracketed front-left setup. Part number 99-02122B is also identified by housing cast numbers 56/4-7.5 and 456/4-7.4.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What This Caliper Helps Address

• Brake drag or uneven pad contact at the front left wheel
• Hydraulic leakage at the caliper body or bleeder area
• Corrosion-related caliper seizure on older Audi and Volkswagen brake systems
• Reduced braking response caused by worn piston seals or slides
• Service issues during brake repair when the original bracketed caliper is no longer usable

Installation Notes and Tips

Verify the vehicle’s front left brake configuration, inlet thread size, and bracketed caliper style before installation. The bleeder screw uses M10-1.0 thread, and the inlet port is M10-1.0 with a plug-style fitting. Brake pad installation hardware is listed in the package contents, while pads, anti-squeal shims, and wear sensors are not included. Follow factory bleeding procedures after installation and confirm proper rotor clearance and pedal feel before returning the vehicle to service.

Quality Assurance

Nugeon supplies this part as a remanufactured brake caliper for the specified Audi and Volkswagen applications, with rust-preventative finish, dust boots, slides, and the listed hydraulic hardware details. The product data does not list a warranty, so no warranty information is stated here.