PowerStop JBR1121 Disc Brake Rotor - Front

Power Stop Front OE Stock Replacement Brake Rotor Overview

The Power Stop - Front OE Stock Replacement Brake Rotor (Part Number JBR1121) is engineered for reliable braking performance on select Toyota models. Designed specifically for the Toyota 4Runner, FJ Cruiser, and Tacoma, this vented disc brake rotor meets original equipment specifications to ensure consistent stopping power and durability.

• Compatible with Toyota 4Runner, FJ Cruiser, and Tacoma front brake systems
• Vented disc rotor design for improved heat dissipation
• Nominal thickness of 1.10 inches (28.00 mm) with discard thickness at 1.02 inches (26.00 mm)
• Overall height of 2.70 inches (67.50 mm) and outside diameter of 12.60 inches (319.00 mm)
• Mounting bolt hole circle diameter of 5.50 inches (139.70 mm) with 6 stud/lug holes
• Part number JBR1121 for precise identification and fitment

About the Power Stop - Front OE Stock Replacement Brake Rotor Line

The Power Stop - Front OE Stock Replacement Brake Rotor line is designed to provide direct replacement rotors that match original equipment specifications. This product line focuses on delivering rotors that maintain factory fit, form, and function without additional coatings or modifications. The JBR1121 rotor is a vented type, which helps manage heat buildup during braking, contributing to consistent performance and rotor longevity.

Detailed Product Description

This disc brake rotor features a vented design to enhance cooling and reduce the risk of brake fade under demanding conditions. With a nominal thickness of 1.10 inches (28.00 mm) and a discard thickness of 1.02 inches (26.00 mm), the rotor provides a balance between durability and performance. The overall height measures 2.70 inches (67.50 mm), and the outside diameter is 12.60 inches (319.00 mm), ensuring compatibility with the front brake assemblies of the Toyota 4Runner, FJ Cruiser, and Tacoma. The rotor includes a mounting bolt hole circle diameter of 5.50 inches (139.70 mm) and accommodates 6 stud/lug holes, matching factory specifications for secure installation.

Common Applications and Problem Solving

• Replacement for worn or warped front brake rotors on Toyota 4Runner, FJ Cruiser, and Tacoma
• Addresses brake pulsation or vibration issues caused by uneven rotor surfaces
• Restores proper rotor thickness to maintain effective braking performance
• Helps reduce brake fade by improving heat dissipation with vented rotor design
• Suitable for vehicles experiencing rotor scoring or surface damage

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (1.02 inches) before installation
• Clean rotor surface to remove any protective coatings or debris prior to mounting
• Verify mounting bolt hole circle diameter (5.50 inches) and stud count (6) for proper fit
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Inspect brake pads and replace if worn to optimize braking system performance

Quality Assurance and Warranty

Power Stop manufactures the JBR1121 rotor to meet or exceed OEM standards for fit and function. While this rotor does not feature a rust-resistant coating, it is constructed to provide consistent braking performance under normal operating conditions. Warranty coverage details should be confirmed with the product documentation or manufacturer.