PowerStop L4999 Disc Brake Caliper - Rear Right

PowerStop Rear OE Stock Replacement Caliper Overview

The PowerStop - Rear OE Stock Replacement Caliper (Part Number L4999) is designed specifically for Jeep Commander and Grand Cherokee models. This rear disc brake caliper offers reliable performance with a cast iron construction and a floating caliper design, ensuring consistent braking response and durability.

• Compatible with Jeep Commander and Grand Cherokee rear brake systems
• Cast iron caliper casting for strength and heat resistance
• Single 48.01 mm phenolic piston for effective brake pressure
• Floating caliper type with included caliper slides for smooth operation
• Gray finish with M10 x 1.0 bleeder screw thread size
• Regular grade type for standard braking applications

Detailed Product Description

This PowerStop rear disc brake caliper is engineered to match the original equipment specifications for Jeep Commander and Grand Cherokee vehicles. The caliper features a durable cast iron body that withstands high temperatures and mechanical stress during braking. It uses a single phenolic piston with a diameter of 48.01 mm, which helps reduce heat transfer to the brake fluid, minimizing the risk of brake fade. The floating caliper design allows for self-alignment during braking, improving pad wear and braking efficiency. Caliper slides are included to ensure smooth movement and proper function, while the gray finish provides corrosion resistance. The bleeder screw thread size is M10 x 1.0, compatible with standard brake bleeding tools.

About the PowerStop - Rear OE Stock Replacement Caliper Line

The PowerStop - Rear OE Stock Replacement Caliper line focuses on providing direct replacement parts that meet original equipment standards. This product line is intended for drivers seeking reliable, factory-equivalent brake components without modifications. The L4999 caliper maintains the OE fit and function, making it a practical choice for restoring rear brake performance on Jeep Commander and Grand Cherokee models.

Common Applications and Problem Solving

• Replacement for worn or leaking rear brake calipers on Jeep Commander and Grand Cherokee
• Addresses uneven brake pad wear caused by sticking calipers
• Resolves reduced braking efficiency due to piston or slide corrosion
• Fixes brake fluid leaks from damaged or deteriorated caliper pistons
• Improves rear brake responsiveness and pedal feel

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air from the hydraulic lines. This caliper does not include mounting hardware or brackets, so reuse existing components or acquire replacements as needed. Verify the bleeder screw thread size (M10 x 1.0) matches your brake system tools. Inspect brake pads and rotors for wear and replace if necessary to maintain optimal braking performance.

Quality Assurance and Warranty

PowerStop manufactures this rear OE stock replacement caliper to meet or exceed original equipment standards. The cast iron construction and phenolic piston materials are selected for durability and consistent performance. 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.