PowerStop L4989 Disc Brake Caliper - Front Right

PowerStop Front OE Stock Replacement Caliper Overview

The PowerStop L4989 front disc brake caliper is designed for reliable braking performance on select Buick and Chevrolet models. Engineered as a floating caliper with two steel pistons, this component offers a durable cast iron construction to meet OE standards for your vehicle.

• Compatible with Buick Impala, Impala Limited, Lucerne, and Chevrolet Monte Carlo
• Floating caliper design with two 44.96 mm steel pistons
• Cast iron caliper casting for strength and durability
• Includes caliper slides and mounting bracket for proper fitment
• Gray finish with M10 x 1.5 bleeder screw thread size
• Grade type: Regular for standard braking applications

About the PowerStop Front OE Stock Replacement Caliper Line

The PowerStop - Front OE Stock Replacement Caliper line is engineered to provide a direct replacement for original equipment front brake calipers. This product line focuses on maintaining factory specifications and fitment, ensuring compatibility and consistent braking performance for vehicles like the Buick Impala and Chevrolet Monte Carlo. The L4989 caliper is part of this line, offering a balance of durability and OE-style operation without including mounting hardware.

Product Details and Specifications

This PowerStop disc brake caliper features a floating design with two steel pistons, each measuring 44.96 mm in diameter, which helps provide even pressure distribution on the brake pads. The caliper body is made from cast iron, a material known for its strength and heat resistance, suitable for regular grade braking conditions. The gray finish protects against corrosion, while the included caliper slides and mounting bracket ensure proper installation alignment. The bleeder screw thread size is M10 x 1.5, compatible with standard brake bleeding tools.

Common Applications and Problem Solving

• Replacement for worn or seized front calipers on Buick Impala and Chevrolet Monte Carlo
• Restores proper brake pad alignment and pressure for consistent stopping power
• Addresses brake fluid leakage issues related to piston seals
• Resolves uneven brake pad wear caused by faulty caliper slides
• Improves braking response when original caliper components have deteriorated

Installation Notes and Tips

When installing the PowerStop L4989 caliper, ensure the mounting bracket is securely fastened and the caliper slides are properly lubricated for smooth operation. Bleed the brake system using the M10 x 1.5 bleeder screw to remove air and maintain hydraulic integrity. Note that mounting hardware is not included and should be reused or purchased separately if needed. Verify compatibility with your specific Buick or Chevrolet model before installation.

Quality Assurance and Warranty

PowerStop manufactures this front OE stock replacement caliper to meet or exceed original equipment standards. The cast iron construction and steel pistons provide durability under normal driving conditions. 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.