PowerStop L4020 Disc Brake Caliper - Front Right

PowerStop Front OE Stock Replacement Caliper Overview

The PowerStop - Front OE Stock Replacement Caliper (Part Number L4020) is designed to provide reliable braking performance for a range of GM vehicles. Engineered as a direct replacement for front disc brake calipers, this part ensures consistent stopping power and durability for models including Chevrolet, GMC, Buick, and Cadillac.

• Cast iron caliper casting for strength and durability
• Single steel piston with a 74.68 mm diameter
• Floating caliper design for smooth operation
• Includes caliper slides for proper movement
• Gray finish for corrosion resistance
• Compatible with multiple GM makes and models from late 90s and early 2000s
• Bleeder screw thread size M10 x 1.5

About the PowerStop - Front OE Stock Replacement Caliper Line

The PowerStop - Front OE Stock Replacement Caliper line focuses on delivering OEM-equivalent quality and fitment for front disc brake systems. This product line is tailored to match original equipment specifications, ensuring proper function and compatibility with factory brake components. The L4020 caliper maintains the original floating caliper design and piston size, making it a suitable replacement for front brake systems on various GM vehicles.

Detailed Product Description

This PowerStop front disc brake caliper features a cast iron construction that provides the necessary strength to withstand the rigors of daily driving. The single steel piston with a diameter of 74.68 mm offers reliable hydraulic pressure application for effective braking. The floating caliper design allows the caliper to move laterally, ensuring even pad wear and consistent contact with the rotor. Included caliper slides facilitate smooth caliper movement, which is essential for proper brake function. The gray finish helps resist corrosion, extending the service life of the caliper.

Compatible Vehicles and Common Applications

• Buick models such as LeSabre, Park Avenue, and Skylark
• Cadillac DeVille and Seville
• Chevrolet C10, C1500, Camaro, Caprice, and Impala
• GMC R1500 and Safari
• Oldsmobile Cutlass and Delta 88
• Pontiac Firebird, Grand Am, and Bonneville

Common Issues Addressed by This Caliper

• Uneven brake pad wear due to caliper sticking
• Brake fluid leaks from worn piston seals
• Reduced braking efficiency from corroded caliper bodies
• Brake noise caused by caliper slide pin failure
• Brake drag resulting from seized floating caliper movement

Installation Notes and Tips

When installing the PowerStop L4020 caliper, ensure the brake system is properly bled using the M10 x 1.5 bleeder screw thread size. Verify that caliper slides are clean and lubricated to allow free movement. Note that mounting hardware and brackets are not included and should be reused or replaced as necessary. Always inspect brake pads and rotors for wear and replace if needed to maintain optimal braking performance.

Quality Assurance and Warranty

PowerStop manufactures this caliper to meet or exceed OEM specifications, ensuring reliable performance and fitment. The cast iron construction and steel piston materials contribute to long-lasting durability. 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.