PowerStop L5004A Disc Brake Caliper - Front Left

PowerStop Front OE Stock Replacement Caliper Overview

The PowerStop - Front OE Stock Replacement Caliper (Part Number L5004A) is designed to provide reliable braking performance for select GM vehicles. Engineered as a direct replacement for front disc brake calipers, this part ensures consistent stopping power and durability for Buick, Chevrolet, and GMC models.

• Cast iron caliper casting for strength and durability
• Floating caliper design with two 48.01 mm phenolic pistons
• Includes caliper slides and mounting bracket for ease of installation
• Gray finish to match OE appearance
• Compatible with Buick Envoy, Chevrolet Trailblazer, Trailblazer EXT, GMC Envoy, Envoy XL, and Rainier
• Bleeder screw thread size M10 x 1.0 for proper brake fluid maintenance

About the PowerStop Front OE Stock Replacement Caliper Line

The PowerStop - Front OE Stock Replacement Caliper line focuses on delivering direct-fit replacement parts that meet original equipment specifications. This ensures that the L5004A caliper maintains factory performance standards and fitment accuracy for front brake systems on compatible vehicles. The line emphasizes quality materials and design features such as phenolic pistons and cast iron construction to provide dependable braking without modification.

Detailed Product Description

This disc brake caliper features a floating design with two phenolic pistons measuring 48.01 mm in diameter, which helps reduce heat transfer to the brake fluid and improves overall brake system longevity. The cast iron caliper casting offers structural integrity and resistance to wear. Included caliper slides and a mounting bracket facilitate proper alignment and secure installation. The gray color finish matches the original equipment look, making it suitable for visible front brake assemblies.

Common Applications and Problem Solving

• Replacement for worn or leaking front disc brake calipers on Buick Envoy and Envoy XL
• Restores braking performance on Chevrolet Trailblazer and Trailblazer EXT with sticking or seized calipers
• Addresses brake drag or uneven pad wear on GMC Envoy and Rainier
• Solves issues related to brake fluid contamination by using phenolic pistons
• Improves brake pedal feel and response in vehicles with aging brake hydraulics

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air and maintain optimal brake performance. This caliper includes the mounting bracket and caliper slides but does not come with mounting hardware, so verify you have the necessary bolts and tools before beginning installation. The bleeder screw thread size is M10 x 1.0, compatible with standard brake bleeding equipment. Follow manufacturer torque specifications for mounting bolts to avoid damage.

Quality Assurance and Warranty

PowerStop manufactures this caliper to meet or exceed OEM standards for fit, form, and function. The use of cast iron and phenolic pistons ensures durability and resistance to corrosion and heat. While specific warranty details are not provided here, PowerStop products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.