PowerStop L1377 Disc Brake Caliper - Rear Right

PowerStop Rear OE Stock Replacement Caliper Overview

The PowerStop - Rear OE Stock Replacement Caliper (Part Number L1377) is designed specifically for Mazda Miata models requiring a reliable rear disc brake caliper. Engineered to meet original equipment specifications, this floating caliper ensures consistent braking performance and durability.

• Cast iron caliper casting for strength and heat resistance
• Single steel piston with a 31.67 mm diameter for precise brake application
• Includes caliper slides and mounting bracket for proper fitment
• Floating caliper design for smooth operation and even pad wear
• Gray finish matching OE appearance
• Compatible with Mazda Miata rear brake systems
• Inlet thread size M10 x 1.0 and bleeder screw thread size M7 x 1.0

About the PowerStop - Rear OE Stock Replacement Caliper Line

The PowerStop - Rear OE Stock Replacement Caliper product line focuses on delivering direct OE replacements that maintain factory performance and fitment. This line is tailored for drivers who need dependable brake hydraulics without modifying their vehicle’s braking system. The L1377 caliper is part of this line, providing a cast iron floating caliper solution that matches the original Mazda Miata rear brake setup.

Detailed Product Description

This PowerStop rear disc brake caliper features a durable cast iron construction, which offers excellent resistance to heat and wear during braking. The single steel piston with a diameter of 31.67 mm ensures consistent pressure on the brake pads, contributing to reliable stopping power. The floating caliper design allows the caliper to move laterally, promoting even pad wear and smooth braking response. Included caliper slides and mounting bracket facilitate proper installation and alignment on the rear axle of compatible Mazda Miata vehicles. The gray color finish aligns with the original equipment look, maintaining the vehicle’s factory appearance.

Common Applications and Problem Solving

• Replacement for worn or seized rear brake calipers on Mazda Miata
• Restores proper brake pad alignment and reduces uneven pad wear
• Addresses brake drag caused by faulty caliper pistons or slides
• Improves rear braking performance and pedal feel
• Suitable for restoring factory braking function after caliper damage

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air and maintain braking efficiency. This caliper includes the mounting bracket and slides but does not come with additional mounting hardware, so verify existing hardware condition before installation. Compatible with rear brake systems on Mazda Miata models; confirm vehicle year and specifications for fitment. Use appropriate tools to avoid damage to the inlet and bleeder screw threads (M10 x 1.0 and M7 x 1.0 respectively).

Quality Assurance and Warranty

PowerStop manufactures this rear OE stock replacement caliper to meet or exceed original equipment standards. The cast iron construction and steel piston materials are selected for durability and consistent performance. While specific warranty details are not provided here, PowerStop products typically come with manufacturer-backed quality assurance to support reliable operation in automotive brake systems.