PowerStop L3425 Disc Brake Caliper - Rear Left

Rear OE Replacement Caliper for Subaru

PowerStop L3425 is a rear left disc brake caliper built as a direct OE stock replacement for select Subaru applications. It is remanufactured in Chicago, pressure tested for piston operation and leak prevention, and assembled with new seals, slide pins where applicable, dust boots, bleeder screws, and stainless steel brake pad abutment clips.

Compatible with Subaru WRX, Impreza, and Forester rear left positions, this PowerStop caliper is a practical choice for restoring factory-style braking performance on a Subaru WRX rear left brake caliper replacement or similar OE-style repair.

Key Features

• Direct-fit rear left disc brake caliper for OE stock replacement
• Remanufactured cast iron caliper with floating design
• Single 38.07 mm steel piston
• Caliper slides included; mounting bracket included
• High-temperature EPDM rubber dust boots for improved durability
• Premium silicone lubricant used for smoother caliper movement
• Bleeder screw thread size: M10 x 1.0
• Gray finish

Product Details

PowerStop’s Autospecialty OE Replacement Brake Calipers are built for drivers who want a stock-style brake repair without changing the original braking layout. The L3425 rear OE replacement caliper is remanufactured and pressure tested to verify piston function and help prevent leaks. Its floating caliper design, cast iron body, and included bracket support a straightforward replacement on the rear left side.

This part number, L3425, is listed for 2021 Subaru WRX rear left except EyeSight Technology, 2016-2020 Subaru WRX rear left except Eyesight Technology, 2012-2015 Subaru WRX rear left, 2008-2014 Subaru Impreza rear left, and 2009-2013 Subaru Forester rear left. If you are searching for a Subaru WRX rear left caliper, Subaru Impreza rear left brake caliper, or Subaru Forester rear left caliper, L3425 matches those confirmed applications.

What It Helps Address

• Sticking or uneven rear brake caliper movement
• Brake fluid leaks at the caliper body or seals
• Worn piston seals, dust boots, or bleeder hardware
• Corrosion-related caliper replacement on the rear left side
• Loss of factory-style braking feel from a worn OE caliper

Installation Notes

Verify vehicle fitment by year, model, position, and notes before installation. This rear left caliper includes the mounting bracket and caliper slides, but mounting hardware is not listed as included. Inspect brake pads, rotors, and brake fluid condition during service, and bleed the hydraulic system after installation to remove air from the circuit.

Quality Assurance

PowerStop remanufactures the caliper and bracket in its Chicago, IL facility and pressure tests each unit to confirm piston operation and check for leaks. The assembly uses new seals, dust boots, bleeder screws, and stainless steel brake pad abutment clips for consistent OE-style serviceability.