PowerStop L4646 Disc Brake Caliper - Front Left

PowerStop Front OE Stock Replacement Caliper Overview

The PowerStop - Front OE Stock Replacement Caliper (Part Number L4646) is designed to provide reliable braking performance for select Chevrolet, Oldsmobile, and Pontiac vehicles. Engineered as a direct OE replacement, this floating disc brake caliper ensures consistent stopping power and durability for models like the Chevrolet Malibu, Pontiac Grand Am, and Oldsmobile Alero.

• Caliper Type: Floating
• Caliper Casting Material: Aluminum
• Piston Quantity: 1
• Piston Diameter: 60.45 mm
• Piston Material: Steel
• Caliper Slides Included: Yes
• Mounting Bracket Included: Yes
• Caliper Color: Gray
• Bleeder Screw Thread Size: M10 x 1.0
• Grade Type: Regular

Detailed Product Description

This PowerStop front disc brake caliper is constructed from lightweight aluminum casting, which helps reduce unsprung weight while maintaining structural integrity. The single steel piston with a diameter of 60.45 mm provides effective clamping force on the brake pads, ensuring consistent braking performance. The floating caliper design allows for smooth movement on the included caliper slides, promoting even pad wear and reliable operation. The gray finish offers corrosion resistance and a clean appearance under the hood. This caliper is compatible with front brake systems on Chevrolet Malibu, Pontiac Grand Am, Oldsmobile Alero, Classic, and Cutlass models.

PowerStop - Front OE Stock Replacement Caliper Product Line

The PowerStop - Front OE Stock Replacement Caliper line focuses on delivering direct-fit replacements that meet original equipment specifications. This product line is engineered to provide dependable braking performance without modification, making it suitable for routine maintenance or repair on compatible vehicles. The L4646 caliper exemplifies this approach by combining OE-quality materials and design features tailored for front brake applications on select GM models.

Common Applications and Problem Solving

• Replacement for worn or seized front disc brake calipers
• Restores proper brake pad alignment and even wear
• Addresses brake drag caused by sticking pistons or slides
• Improves braking consistency and pedal feel
• Prevents brake fluid leaks from damaged piston seals

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air and maintain optimal hydraulic pressure. Verify that the mounting bracket is securely fastened and that the caliper slides move freely on their pins. Use the correct bleeder screw size (M10 x 1.0) when performing brake bleeding procedures. This caliper does not include mounting hardware, so retain or source necessary bolts and clips from the original assembly or aftermarket suppliers.

Quality Assurance and Warranty

PowerStop manufactures this caliper to meet or exceed OEM standards for fit, form, and function. The use of aluminum casting and steel piston materials ensures durability and resistance to corrosion. 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.