PowerStop L3227 Disc Brake Caliper - Rear Right

PowerStop Rear OE Stock Replacement Caliper Overview

The PowerStop - Rear OE Stock Replacement Caliper (Part Number L3227) is designed to provide reliable braking performance for select BMW models. Engineered as a floating disc brake caliper, it offers a precise fit and consistent operation for vehicles like the BMW 325i, 328i, and X1 series.

• Compatible with BMW 325i, 325xi, 328i, 328i xDrive, 328xi, and X1 models
• Constructed from durable cast iron caliper casting material
• Single steel piston with a diameter of 41.91 mm for effective braking force
• Includes caliper slides and mounting bracket for proper installation
• Floating caliper type designed for rear brake applications
• Gray caliper color with M8 x 1.0 bleeder screw thread size
• Grade type: Regular for standard braking requirements

Product Line Details: PowerStop - Rear OE Stock Replacement Caliper

This caliper is part of the PowerStop - Rear OE Stock Replacement Caliper line, which focuses on delivering direct replacement components that meet original equipment specifications. This product line ensures compatibility and performance consistency for rear brake systems, making it suitable for maintaining the braking integrity of your BMW 325i, 328i, or X1 without modification.

Technical Description and Features

The L3227 caliper features a cast iron construction that provides strength and heat resistance necessary for rear brake applications. Its floating caliper design allows for smooth piston movement and even pad wear. The single steel piston with a 41.91 mm diameter ensures reliable hydraulic pressure transfer. Included caliper slides and mounting bracket facilitate proper alignment and secure installation. The gray finish offers corrosion resistance while maintaining a clean appearance. The bleeder screw thread size of M8 x 1.0 is compatible with standard brake bleeding tools.

Common Applications and Problem Resolution

• Replacement for worn or seized rear calipers on BMW 325i and 328i models
• Restores proper brake pad alignment and reduces uneven pad wear
• Addresses brake fluid leakage issues related to piston or seal failure
• Improves rear braking response and pedal feel in BMW X1 vehicles
• Suitable for repairing floating caliper malfunctions in rear brake systems

Installation Notes and Tips

Ensure the brake system is fully depressurized before removing the old caliper. This caliper includes the mounting bracket and caliper slides but does not include additional mounting hardware, so verify you have the necessary bolts and tools. Properly torque all fasteners to manufacturer specifications. Bleed the brake system using an M8 x 1.0 bleeder screw thread size compatible tool to remove air and maintain hydraulic integrity. Inspect brake pads and rotors for wear during installation.

Quality Assurance and Warranty

PowerStop manufactures this rear OE stock replacement caliper to meet or exceed OEM standards for fit and function. The cast iron construction and steel piston materials are selected for durability and consistent performance. While specific warranty details are not provided here, PowerStop products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.