Cardone 18-B4718B Disc Brake Caliper - Rear Left

Rear Left Brake Caliper for Buick, Pontiac, and Oldsmobile

Cardone 18-B4718B is a remanufactured rear left disc brake caliper with bracket for select Buick, Pontiac, and Oldsmobile applications. It is built with a steel piston, new seals, and corrosion-resistant finishing to support consistent braking performance on the rear axle.

Key Features

• Remanufactured Original Equipment-style caliper for direct vehicle fit
• Fits rear left positions on select 2000-2005 Buick LeSabre and Park Avenue, 2000-2005 Pontiac Bonneville, and 2001-2003 Oldsmobile Aurora
• Steel piston with 1.493 in. (37.9222 mm) outside diameter
• Oil emulsion finish with gray caliper color and rust-inhibiting treatment
• New high-temperature EPDM rubber seals for durability
• New bleeder screw, stainless steel hardware clips, and mounting pins where applicable
• Bracket included where applicable; package contents include caliper, bracket, and hardware kit
• Inlet and bleeder port size: M10x1.5

Product Details

The Cardone Unloaded Caliper w/Bracket line focuses on remanufactured brake hydraulics built to OE fit and function. Part number 18-B4718B is pressure-tested and assembled with new premium components to help maintain pedal feel and braking consistency. For drivers servicing a Buick LeSabre, Buick Park Avenue, Pontiac Bonneville, or Oldsmobile Aurora, this rear left caliper provides a direct replacement path for the original brake hardware.

This part cross-references Buick 18042413 and Pontiac 89047651 for the same application.

Common Brake Issues This Part Can Address

• Rear brake drag caused by a sticking caliper piston or worn seals
• Uneven braking from a seized or corroded rear left caliper
• Brake fluid leakage at the caliper body, bleeder, or inlet port
• Soft or inconsistent brake response related to caliper hydraulic wear
• Poor pad movement caused by worn mounting hardware or caliper bracket wear

Installation Notes

Compatible With 2000-2005 Buick LeSabre, rear left; 2000-2005 Buick Park Avenue, rear left; 2000-2005 Pontiac Bonneville, rear left; and 2001-2003 Oldsmobile Aurora, rear left. Verify the M10x1.5 inlet and bleeder port size before installation. Use the brake fluid specified by the vehicle manufacturer, and bleed the system thoroughly after replacement. Floating caliper mounting pins should be lubricated with silicone grease.

Quality Assurance

Cardone remanufactures this caliper to OE-based standards and pressure-tests each unit before release. The process uses new internal components and is designed to reduce raw material and energy use compared with manufacturing a new part.