R1 Concepts Drilled & Slotted Brake Rotor

1999–2004 Jeep Grand Cherokee 2.5L / 4.0L / 4.7L / 5.2L / 5.9L

Part #: 631-42025L

Overview

The R1 Concepts Drilled & Slotted Brake Rotor is engineered specifically for the rear left position on Jeep Grand Cherokee models from 1999 to 2004. Designed to fit a wide range of engine options including the 2.5L, 4.0L inline-6, and V8 engines ranging from 4.7L to 5.9L, this rotor delivers reliable stopping power and enhanced braking performance. Ideal for Jeep enthusiasts seeking improved heat dissipation and consistent brake feel, this rotor upgrades your vehicle’s braking system with precision and durability.

Whether you drive your Grand Cherokee daily or push it on rugged terrain, this rotor offers superior resistance to brake fade and improved pad bite, making it a smart choice for both street and light off-road use.

Key Features

R1 Concepts has incorporated advanced design elements to optimize braking efficiency and rotor longevity. Key features include:

• Drilled holes for enhanced heat dissipation and reduced brake fade during heavy braking
• Slotted surface to help remove brake dust, water, and gases for consistent pad contact
• Precision-machined to ensure a perfect fit and smooth rotor-to-hub alignment
• Durable silver coating to resist rust and corrosion, extending rotor life
• Constructed to meet or exceed OEM specifications for reliable performance
• Compatible with a variety of brake pads, including ceramic and semi-metallic compounds
• Balanced design to minimize vibration and noise during braking

Construction & Design

Manufactured from premium-grade cast iron, the R1 Concepts rotor combines strength with thermal conductivity to withstand the rigors of daily driving and spirited braking. The drilled holes and slots are strategically placed to optimize airflow and cooling, reducing the risk of warping under extreme conditions. The silver protective coating not only enhances corrosion resistance but also maintains a clean appearance over time. Each rotor undergoes strict quality control to ensure consistent thickness and surface finish, providing dependable braking performance and longevity.

Installation & Fitment

This rotor is designed as a direct replacement for the rear left brake rotor on Jeep Grand Cherokee models from 1999 through 2004 with 2.5L, 4.0L I6, 4.7L V8, 5.2L V8, and 5.9L V8 engines. Installation requires no modifications and fits seamlessly with existing brake calipers and hardware. Professional installation is recommended to ensure proper torque specifications and rotor bedding for optimal performance.

What's Included

• One (1) R1 Concepts Drilled & Slotted Rear Left Brake Rotor

Ideal For

This rotor is perfect for Jeep Grand Cherokee owners looking to upgrade their braking system for improved heat management and stopping power. It suits drivers who demand reliable performance in everyday driving, towing, or light off-road conditions. Enthusiasts seeking enhanced brake feel and reduced fade will appreciate the advanced design features of this rotor.

R1 Concepts is a manufacturer and retailer specializing in automotive braking systems, offering a comprehensive catalog of brake parts for both foreign and domestic vehicles from 1930 to the present. Their product line includes OE replacements and high-performance aftermarket brake components, such as cross-drilled and slotted rotors, ceramic brake pads, and big brake kits. Enthusiasts choose R1 Concepts for their precision engineering and quality materials, which enhance braking performance and safety across various driving conditions.