R1 Concepts Drilled & Slotted Brake Rotor

1999–2004 Jeep Grand Cherokee 2.5L, 4.0L I6, 4.7L V8, 5.2L V8, 5.9L V8

Part #: 631-42024L

Overview

The R1 Concepts Drilled & Slotted Brake Rotor is engineered specifically for the front left position on Jeep Grand Cherokee models from 1999 to 2004, covering a wide range of engine options including 2.5L, 4.0L inline-6, and 4.7L, 5.2L, and 5.9L V8 engines. Designed to enhance braking performance and reliability, this rotor is an excellent upgrade for Jeep owners seeking improved stopping power and heat dissipation over factory rotors.

Ideal for daily driving, towing, and light off-road use, this rotor balances durability with performance, helping to maintain consistent brake feel under demanding conditions. Its drilled and slotted design aids in reducing brake fade and improving pad bite, making it a practical choice for Jeep enthusiasts who want dependable braking without compromising safety or comfort.

Key Features

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

• Drilled holes to improve heat dissipation and reduce brake fade during heavy braking
• Precision-machined slots to help remove brake dust, gas, and water for cleaner pad contact
• High-quality cast iron construction for strength and durability
• Silver corrosion-resistant coating to protect against rust and extend rotor life
• Balanced and tested to minimize vibration and noise for a smooth braking experience
• Direct fitment for front left position, ensuring easy installation without modifications
• Compatible with OEM brake pads and calipers for seamless integration

Construction & Design

This brake rotor is crafted from premium-grade cast iron, chosen for its excellent thermal conductivity and wear resistance. The drilled holes and slots are precisely engineered to optimize airflow and cooling, which helps maintain consistent braking performance even under high-stress conditions such as towing or spirited driving. The silver protective coating not only enhances corrosion resistance but also provides a clean, professional appearance that complements the vehicle’s braking system.

Each rotor undergoes strict quality control to ensure flatness and balance, reducing the risk of vibrations or uneven pad wear. The design maintains the structural integrity required for the demanding applications typical of Jeep Grand Cherokee owners.

Installation & Fitment

The R1 Concepts Drilled & Slotted Brake Rotor is a direct replacement for the front left rotor on 1999–2004 Jeep Grand Cherokee models equipped with 2.5L, 4.0L I6, 4.7L V8, 5.2L V8, or 5.9L V8 engines. Installation requires no modifications and fits with existing OEM brake pads and calipers. This makes it an ideal upgrade for DIY enthusiasts and professional mechanics alike.

Standard brake service tools are sufficient for installation, and it is recommended to replace rotors in pairs to maintain balanced braking performance. Always follow manufacturer torque specifications and safety procedures during installation.

What's Included

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

Ideal For

This rotor is perfect for Jeep Grand Cherokee owners looking to improve braking performance and reliability without extensive modifications. It suits daily drivers, off-road enthusiasts, and those who tow or haul, providing enhanced heat management and consistent stopping power. It is also a solid choice for anyone replacing worn or damaged front rotors with a high-quality aftermarket option.