PowerStop L4765 Disc Brake Caliper - Rear Right

PowerStop Rear OE Stock Replacement Caliper Overview

The PowerStop - Rear OE Stock Replacement Caliper (Part Number L4765) is designed to provide reliable braking performance for select GM trucks and SUVs. Engineered as a direct replacement for rear disc brake calipers, this floating caliper offers consistent operation and durability for vehicles like the Chevrolet Silverado 1500 and GMC Sierra 1500.

• Floating disc brake caliper with two phenolic pistons
• Constructed from lightweight aluminum casting
• Includes caliper slides and mounting bracket for ease of installation
• Gray finish with a piston diameter of 44.96 mm
• Compatible with bleeder screw thread size M10 x 1.0
• Grade type: Regular for standard braking applications

Product Line Details: PowerStop - Rear OE Stock Replacement Caliper

This caliper is part of the PowerStop - Rear OE Stock Replacement Caliper line, which focuses on providing direct-fit replacements that meet original equipment specifications. The line emphasizes maintaining factory performance and fitment, making it suitable for restoring braking function on vehicles without modification. The L4765 caliper maintains OE design features such as floating caliper type and phenolic pistons to ensure consistent brake pad contact and heat resistance.

Technical Description and Features

The PowerStop L4765 rear caliper features a floating design with two phenolic pistons, which help reduce heat transfer to the brake fluid and improve overall braking stability. The aluminum casting material reduces unsprung weight compared to traditional cast iron calipers, contributing to better vehicle handling. Included caliper slides and mounting bracket simplify installation, although mounting hardware is not included. The caliper’s gray finish provides corrosion resistance and a clean appearance. This caliper is engineered with a piston diameter of 44.96 mm and uses a standard M10 x 1.0 bleeder screw thread size, compatible with many GM brake systems.

Compatible Vehicles and Applications

• Cadillac Escalade, Escalade ESV, Escalade EXT
• Chevrolet Avalanche 1500, Silverado 1500, Silverado 1500 Classic, Silverado 1500 HD, Suburban 1500, Tahoe
• GMC Sierra 1500, Sierra 1500 Classic, Yukon, Yukon XL 1500

This caliper is designed specifically for rear disc brake applications on these models, ensuring proper fit and function.

Common Issues Addressed by This Caliper

• Worn or seized rear calipers causing uneven brake pad wear
• Brake fluid leaks from damaged or corroded pistons
• Reduced braking efficiency due to sticking caliper slides
• Noise or vibration from faulty caliper operation
• Corrosion damage to original caliper housing

Installation Notes and Tips

Installation requires removal of the old rear caliper and proper cleaning of the mounting surface. Since mounting hardware is not included, reuse existing bolts or source new hardware as needed. Bleed the brake system thoroughly after installation to remove air and ensure proper brake pedal feel. Verify compatibility with your vehicle’s brake lines and fittings before installation. The included mounting bracket and caliper slides facilitate alignment and smooth caliper movement.

Quality Assurance and Warranty

PowerStop manufactures this caliper to meet or exceed OEM specifications for fit, form, and function. The use of phenolic pistons and aluminum casting supports durability and corrosion resistance. While specific warranty details are not provided, PowerStop products typically come with a limited warranty against defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms.