Nugeon 99-02142A Disc Brake Caliper - Rear Right

Rear Right Reman Brake Caliper for Audi

Nugeon 99-02142A is a remanufactured disc brake caliper for the rear right position on select Audi applications. It is built with a cast iron housing, steel piston, and a rust preventative grey finish for service-ready brake hydraulics replacement.

This reman caliper w/ installation hardware line is focused on direct-fit brake service for 2004-2009 Audi S4, 2005-2006 Audi A4, and 2005-2006 Audi A4 Quattro rear right applications. The Nugeon 99-02142A is supplied with a mounting bracket and brake pad installation hardware where applicable, making it a practical choice for rear brake caliper replacement on these vehicles.

Key Features

• Remanufactured disc brake caliper for rear right installation
• Cast iron caliper body with grey rust preventative finish
• 41 mm (2 in.) steel piston
• Bleeder screw included with M10-1.0 thread
• Bracket included with caliper slides and dust boots
• Banjo bolt inlet fitting with M12-1.0 inlet thread
• Brake pad installation hardware included where applicable

Detailed Product Overview

Nugeon 99-02142A is engineered as a remanufactured rear right disc brake caliper for Audi brake service. The unit uses a single steel piston and includes the bracket, slides, dust boots, and bleeder screw needed for a complete caliper assembly replacement. Housing cast number 9251 and bracket cast number 9254 identify the core design used for this application.

Compatible With 2004-2009 Audi S4, rear right; 2005-2006 Audi A4, rear right with 300mm disc; and 2005-2006 Audi A4 Quattro, rear right with 300mm disc. Use Nugeon 99-02142A when replacing a worn or seized rear caliper on these Audi models.

Common Brake Issues This Caliper Can Address

• Rear brake drag caused by a sticking caliper piston
• Uneven braking from a seized or corroded rear right caliper
• Brake fluid leakage at the caliper body or bleeder area
• Reduced braking performance from worn internal caliper components
• Noise or vibration related to caliper hardware wear

Installation Notes and Tips

Verify rear right fitment before installation, especially on 2005-2006 Audi A4 and Audi A4 Quattro models that require a 300mm disc. Confirm banjo bolt connection, inlet thread size, and bleeder screw thread match the vehicle brake line setup. Inspect pads, rotor condition, and brake fluid during service, and bleed the hydraulic system after installation.

Part number 99-02142A is also referenced for the same application as Nugeon 99-02142A.

Quality Assurance

This remanufactured caliper is built with a rust preventative finish and service hardware details specified for the listed Audi rear right applications. Nugeon 99-02142A is prepared for brake system replacement work where a reman caliper assembly is required.