PowerStop L3191 Disc Brake Caliper - Rear Left

PowerStop Rear OE Stock Replacement Caliper Overview

The PowerStop - Rear OE Stock Replacement Caliper (Part Number L3191) is designed specifically for Acura RL models. This floating disc brake caliper offers reliable braking performance with durable aluminum construction and a steel piston, engineered to meet OE specifications.

• Compatible with Acura RL rear brake systems
• Floating caliper design with one steel piston (41.91 mm diameter)
• Constructed from lightweight aluminum casting
• Includes caliper slides and mounting bracket for proper fitment
• Gray finish with M8 x 1.0 bleeder screw thread size
• Grade type: Regular for standard braking applications

Product Line Details: PowerStop - Rear OE Stock Replacement Caliper

The PowerStop - Rear OE Stock Replacement Caliper line focuses on providing direct OE replacement parts that maintain factory performance and fitment. This product line is engineered to match original equipment specifications, ensuring compatibility and reliable operation for rear brake systems. The L3191 caliper is part of this line, offering a balance of durability and precision for Acura RL vehicles.

Technical Description and Features

This disc brake caliper features a floating design with a single steel piston measuring 41.91 mm in diameter, providing consistent clamping force on the brake pads. The aluminum caliper casting reduces unsprung weight while maintaining strength and corrosion resistance. Included caliper slides and a mounting bracket ensure proper alignment and smooth operation within the rear brake assembly. The gray finish offers a neutral appearance suitable for OEM replacement. The bleeder screw thread size is M8 x 1.0, compatible with standard brake bleeding tools.

Common Applications and Problem Solving

• Replacement for worn or seized rear calipers on Acura RL models
• Restores proper brake pad alignment and reduces uneven pad wear
• Addresses brake drag caused by faulty caliper pistons or slides
• Improves rear braking response and pedal feel
• Suitable for routine brake system maintenance and repair

Installation Notes and Tips

Ensure the brake system is properly depressurized before removing the old caliper. The PowerStop L3191 caliper includes caliper slides and a mounting bracket but does not include mounting hardware, so retain or replace existing bolts as needed. Verify the bleeder screw thread size (M8 x 1.0) matches your brake bleeding tools. After installation, bleed the brake system thoroughly to remove air and confirm proper brake fluid flow. Check for leaks and test brake pedal firmness before driving.

Quality Assurance and Warranty

PowerStop manufactures the L3191 caliper to meet or exceed OEM standards 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 here, PowerStop products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.