Nugeon 99-17257B Disc Brake Caliper - Rear Left or Rear Right

Reman Rear Brake Caliper for GM Luxury Coupes

Nugeon 99-17257B is a remanufactured disc brake caliper with installation hardware for rear left and rear right applications. It is built with a cast iron housing, grey rust-preventative finish, and a 38 mm steel piston for direct replacement service on select Cadillac, Buick, and Oldsmobile models.

The Nugeon Reman Caliper w/ Installation Hardware line focuses on service-ready brake hydraulics with key wear components addressed during remanufacturing. This caliper includes a mounting bracket, bleeder screw, caliper slides, and dust boots, making it a practical choice for rear brake service where the original caliper assembly has seized, leaked, or worn unevenly.

• Remanufactured disc brake caliper for rear left or rear right positions
• Cast iron housing with rust-preventative grey finish
• 38 mm steel piston for hydraulic braking force
• Includes bracket, bleeder screw, caliper slides, dust boots, and hardware
• Banjo bolt inlet fitting with M10-1.5 inlet thread size
• Bleeder screw thread: M10-1.5 x 29.5
• Housing cast number 752

Fits 1987-1992 Cadillac Allante, rear left or rear right; 1988-1991 Buick Reatta, rear left or rear right; 1986-1991 Buick Riviera, rear left or rear right; 1986-1991 Cadillac Eldorado, rear left or rear right; 1986-1991 Cadillac Seville, rear left or rear right; and 1986-1991 Oldsmobile Toronado, rear left or rear right. Part number 99-17257B is a direct-fit rear brake caliper option for these applications, including Cadillac Eldorado and Buick Riviera rear brake service.

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

Common Brake Problems This Caliper Addresses

• Rear brake drag caused by a sticking or seized caliper piston
• Brake fluid leakage from a worn caliper body or seal area
• Uneven rear pad wear from restricted caliper slide movement
• Soft or inconsistent rear braking from a failing hydraulic caliper
• Corrosion-related caliper replacement on older GM rear brake systems

Installation Notes

Verify rear left or rear right placement before installation. Confirm banjo bolt connection, M10-1.5 inlet thread size, and bleeder screw thread size match the vehicle’s brake hose and hydraulic setup. Because this caliper is supplied with a mounting bracket, inspect the rotor, pads, and brake hose condition during service and bleed the brake system thoroughly after installation.

Quality Assurance

This Nugeon remanufactured caliper is rebuilt for brake service using a cast iron housing, steel piston, dust boots, and rust-preventative finish to support dependable hydraulic operation in the listed Cadillac, Buick, and Oldsmobile rear brake applications.