PowerStop L6457 Disc Brake Caliper - Rear Left

Rear OE Stock Replacement Caliper for Hyundai and Kia

PowerStop L6457 is a rear left disc brake caliper built as an OE-style stock replacement for select 2011-2015 Hyundai Sonata and 2011-2015 Kia Optima applications. It is remanufactured for direct bolt-on replacement and uses a floating caliper design with an aluminum casting and phenolic piston.

Key Features

• Rear left disc brake caliper for select Hyundai Sonata and Kia Optima models
• PowerStop L6457 OE replacement caliper with direct-fit mounting
• Floating caliper design with one 34.04 mm phenolic piston
• Aluminum caliper casting with gray finish
• Includes caliper slides and mounting bracket
• Assembled with new seals, dust boots, bleeder screw, and stainless steel pad abutment clips
• Pressure tested to verify piston operation and check for leaks
• Uses high-temperature EPDM rubber dust boots and silicone lubricant for smoother movement

Product Details

PowerStop’s Autospecialty OE Replacement Brake Calipers are remanufactured in Chicago, IL and built to replace the stock rear left caliper without modification. The L6457 is a practical choice for drivers servicing a Hyundai Sonata or Kia Optima brake system and looking for an OE-style replacement that matches the original caliper layout. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Brake Issues This Caliper Can Address

• Sticking or seized rear left caliper movement
• Brake fluid leakage at the caliper body or piston seal
• Uneven rear brake pad wear
• Reduced braking response from a worn piston or slide assembly
• Corrosion or wear on the original rear caliper housing

Installation Notes and Tips

Fits 2011-2015 Hyundai Sonata, rear left. Fits 2011-2015 Kia Optima, rear left. Verify piston diameter, bleeder screw thread size M10 x 1.0, and bracket style before installation. Mounting hardware is not included. Inspect brake pads, rotors, and brake fluid condition during caliper replacement, and bleed the hydraulic system after installation.

Quality Assurance

Each PowerStop L6457 caliper is pressure tested and assembled with new internal sealing components, slide pins where applicable, dust boots, bleeder screws, and stainless steel pad abutment clips. The remanufacturing process is performed in PowerStop’s Chicago, Illinois facility to support consistent fit and function.