PowerStop L3328 Disc Brake Caliper - Rear Left

PowerStop Rear OE Stock Replacement Caliper Overview

The PowerStop - Rear OE Stock Replacement Caliper (Part Number L3328) is designed to provide reliable braking performance for select BMW models. Engineered as a direct replacement for rear disc brake calipers, this component ensures consistent stopping power and durability.

• Compatible with BMW 330Ci, 330i, 330xi, 335d, 335i, 335is, 335i xDrive, 335xi, and X1 models
• Constructed from durable cast iron for long-lasting strength
• Floating caliper design with a single steel piston (43.89 mm diameter)
• Includes caliper slides and mounting bracket for proper fitment
• Gray finish with M8 x 1.25 bleeder screw thread size
• Grade type: Regular for standard braking applications

About the PowerStop - Rear OE Stock Replacement Caliper Line

The PowerStop - Rear OE Stock Replacement Caliper line focuses on providing direct-fit replacement parts that meet original equipment specifications. This ensures compatibility and performance consistency for rear brake systems on various BMW vehicles. The L3328 caliper maintains the OE design with a floating caliper type and steel piston, offering a balance of durability and reliable braking response.

Product Details and Specifications

This rear disc brake caliper features a cast iron construction that withstands the rigors of daily driving and braking heat. The floating caliper design allows for smooth piston movement, aided by the included caliper slides. The single steel piston with a diameter of 43.89 mm provides effective clamping force on the brake pads. The caliper comes with a mounting bracket to ensure proper installation alignment. Its gray color finish is typical for OE replacement parts, and the bleeder screw thread size is M8 x 1.25, compatible with standard brake bleeding tools.

Common Applications and Problem Solving

• Replacement for worn or seized rear calipers on BMW 330Ci, 330i, 330xi, 335d, 335i, 335is, 335i xDrive, 335xi, and X1
• Addresses uneven brake pad wear caused by caliper sticking
• Resolves brake fluid leaks from damaged piston seals
• Improves braking performance when original caliper hardware is compromised
• Restores proper brake pedal feel and stopping power

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air from the hydraulic lines. The mounting bracket is included, but mounting hardware is not, so verify you have the necessary bolts and tools before beginning. Use the correct bleeder screw size (M8 x 1.25) for brake fluid bleeding. Inspect brake pads and rotors for wear and replace if necessary to maintain optimal braking performance.

Quality Assurance and Warranty

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