PowerStop L4805 Disc Brake Caliper - Rear Right

PowerStop Rear OE Stock Replacement Caliper Overview

The PowerStop - Rear OE Stock Replacement Caliper (Part Number L4805) is designed to provide reliable braking performance for select GM and related vehicles. Engineered as a direct replacement for rear disc brake calipers, this floating caliper ensures consistent stopping power and durability for models like the Chevrolet Trailblazer and GMC Envoy.

• Caliper type: Floating with one steel piston
• Caliper casting material: Lightweight aluminum
• Piston diameter: 48.01 mm for precise brake pad engagement
• Includes caliper slides and mounting bracket for proper fitment
• Caliper color: Gray for corrosion resistance
• Bleeder screw thread size: M10 x 1.0
• Grade type: Regular for standard braking applications

Detailed Product Description

This PowerStop rear disc brake caliper is constructed from aluminum casting, offering a balance of strength and reduced weight compared to traditional cast iron calipers. The single steel piston with a 48.01 mm diameter provides consistent hydraulic pressure to the brake pads, ensuring effective braking response. The floating caliper design allows for smooth movement and even pad wear, which is critical for maintaining braking efficiency over time. Included caliper slides and mounting bracket facilitate proper installation and alignment on the rear axle.

The gray finish helps protect the caliper from rust and environmental damage, extending the service life of the component. The bleeder screw with an M10 x 1.0 thread size allows for straightforward brake fluid bleeding during maintenance.

Compatible Vehicles and Applications

This caliper is compatible with a range of vehicles including Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models. Specifically, it fits rear disc brake systems on the Chevrolet Trailblazer, Trailblazer EXT, GMC Envoy, Envoy XL, Envoy XUV, Buick Rainier, Isuzu Ascender, Oldsmobile Bravada, Saab 9-7x, and Chevrolet SSR.

Common Issues Addressed by This Caliper

• Worn or leaking rear brake calipers causing reduced braking performance
• Uneven brake pad wear due to caliper slide or piston malfunction
• Corroded or damaged caliper bodies affecting brake system integrity
• Brake fluid leaks from piston seals or bleeder screw threads
• Brake drag caused by sticking caliper pistons or slides

Installation Notes and Tips

• Ensure the brake system is properly bled after installation to remove air
• Verify compatibility with your vehicle’s rear disc brake setup before purchase
• Use appropriate tools to avoid damaging the bleeder screw or piston
• Inspect brake pads and rotors for wear and replace if necessary during caliper installation
• Torque mounting bracket bolts to manufacturer specifications

Quality Assurance and Warranty

The PowerStop - Rear OE Stock Replacement Caliper (L4805) is manufactured to meet or exceed OEM specifications for fit, form, and function. The use of aluminum casting and steel piston materials ensures durability and corrosion resistance. While specific warranty details are not provided, PowerStop products typically undergo rigorous quality control to ensure reliable performance in daily driving conditions.

The PowerStop - Rear OE Stock Replacement Caliper line is designed to offer a direct OE replacement solution, maintaining the original braking characteristics of your vehicle. This product line focuses on delivering dependable braking components that align with factory standards for vehicles such as the Chevrolet Trailblazer and GMC Envoy.