PowerStop L4340 Disc Brake Caliper - Front Left

PowerStop Front OE Stock Replacement Caliper Overview

The PowerStop - Front OE Stock Replacement Caliper (Part Number L4340) is designed to provide reliable braking performance for select Jeep models. Engineered as a floating disc brake caliper with a cast iron construction, this component ensures durability and consistent operation for your Jeep Cherokee, Comanche, Grand Cherokee, Grand Wagoneer, Wagoneer, and Wrangler.

• Compatible with Jeep Cherokee, Comanche, Grand Cherokee, Grand Wagoneer, Wagoneer, and Wrangler
• Floating caliper design with one phenolic piston
• Cast iron caliper casting for strength and heat resistance
• Includes caliper slides for smooth operation
• Gray finish with 66.04 mm piston diameter
• Bleeder screw thread size 3/8 x 24
• Regular grade type for standard braking applications

Product Line Details: PowerStop - Front OE Stock Replacement Caliper

The PowerStop - Front OE Stock Replacement Caliper line focuses on delivering direct replacement parts that meet original equipment specifications. This caliper is designed to match the fit, form, and function of the factory-installed component, making it a suitable option for maintaining the braking system integrity on compatible Jeep vehicles. The line emphasizes quality materials such as cast iron caliper bodies and phenolic pistons to balance durability and performance.

Technical Description and Features

This disc brake caliper features a floating design, which allows the caliper to move laterally and self-adjust to the brake rotor, ensuring even pad wear and consistent braking force. The single phenolic piston with a diameter of 66.04 mm helps reduce heat transfer to the brake fluid, minimizing the risk of brake fade. The caliper casting is made from cast iron, providing robust structural integrity and resistance to high temperatures generated during braking. Included caliper slides facilitate smooth caliper movement, essential for proper brake function. The gray finish offers corrosion resistance and a clean appearance. Note that mounting hardware and brackets are not included with this part.

Applications and Problem Solving

• Replacement for worn or seized front disc brake calipers on Jeep Cherokee, Comanche, Grand Cherokee, Grand Wagoneer, Wagoneer, and Wrangler
• Addresses uneven brake pad wear caused by caliper sticking or binding
• Resolves brake fluid leaks from damaged or deteriorated piston seals
• Improves braking response when original caliper pistons have become corroded or damaged
• Restores proper caliper slide movement to prevent brake noise and vibration

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air and maintain braking efficiency. Since mounting hardware and brackets are not included, retain or replace these components as needed. Verify compatibility with your specific Jeep model and year before installation. Use appropriate tools to avoid damage to the phenolic piston and caliper body during installation.

Quality Assurance and Warranty

PowerStop manufactures this caliper to meet or exceed OEM standards for fit and function. The use of cast iron and phenolic materials supports long-term durability under normal operating conditions. While specific warranty details are not provided here, PowerStop products typically come with a limited warranty against defects in materials and workmanship. Consult the product packaging or manufacturer for exact warranty terms.