Baer Rear Big Brake Kit

2007–2025 Jeep Wrangler & Gladiator 2.0L / 3.6L and More

Part #: 4402007MG-2

Overview

The Baer 13" SS4 Rear Big Brake Kit is engineered to deliver superior stopping power and enhanced braking performance for a wide range of Jeep Wrangler and Gladiator models from 2007 through 2025. Designed for enthusiasts who demand reliable, high-performance braking on and off the road, this kit upgrades your vehicle’s rear braking system with precision and durability. Whether you’re tackling rugged trails or daily driving, the SS4 kit provides consistent, fade-resistant braking confidence.

This kit fits Jeep Wrangler JK (2007–2017), Wrangler JL (2018–current), and Gladiator JT (2020–current) models equipped with the original equipment rear end. It supports multiple engine options including 2.0L Turbo, 3.6L V6, 6.4L 392, 3.0L EcoDiesel, and earlier V6 variants, ensuring broad compatibility across Jeep’s popular off-road lineup.

Key Features

The Baer SS4 Rear Big Brake Kit combines advanced engineering with quality materials to provide a reliable upgrade for Jeep owners seeking improved braking performance. Key features include:

• 13-inch one-piece slotted rotor for enhanced heat dissipation and reduced brake fade
• Durable zinc plating on rotors to resist corrosion and extend service life
• High-performance 4-piston S4 calipers for increased clamping force and consistent pad contact
• D.O.T. compliant dust and weather seals on calipers for long-term reliability in harsh environments
• Pre-assembled rotors with NAS high-grade stainless steel hardware for secure, maintenance-free installation
• Compatible with popular DR1-C brake pads, offering excellent friction and wear characteristics
• Includes all necessary mounting brackets and hardware for a complete, bolt-on upgrade
• Fits most 17-inch or larger wheels, maintaining wheel fitment flexibility

Construction & Design

The Baer SS4 Rear Big Brake Kit is crafted with precision and durability in mind. The rotors are manufactured as a single-piece design, featuring slots that improve brake pad bite and help evacuate gases and debris during heavy braking. Zinc plating protects the rotor surface from rust and corrosion, ensuring a clean appearance and reliable performance over time.

The 4-piston S4 calipers are engineered for strength and consistent pressure distribution. They incorporate D.O.T. compliant dust and weather seals to protect internal components from dirt, moisture, and road contaminants, which is critical for off-road and all-weather use. The calipers are designed to work seamlessly with Baer’s DR1-C brake pads, known for their balanced performance and longevity.

Installation & Fitment

This rear big brake kit is designed for direct fitment on Jeep Wrangler and Gladiator models equipped with the original rear end, covering model years 2007 through 2025 and multiple engine configurations. Installation is straightforward with all necessary mounting brackets and hardware included, allowing for a bolt-on upgrade without the need for custom modifications. The kit fits most 17-inch or larger wheels, making it compatible with a wide range of factory and aftermarket wheel options.

What's Included

• One 13-inch zinc-plated, slotted rotor pre-assembled with stainless steel hardware
• One 4-piston Baer S4 caliper with D.O.T. compliant dust and weather seals
• All required mounting brackets and installation hardware
• Brake pads compatible with DR1-C pad type (pads sold separately or included depending on package)

Ideal For

The Baer 13" SS4 Rear Big Brake Kit is ideal for Jeep Wrangler and Gladiator owners who want to upgrade their rear braking system for improved stopping power, durability, and heat management. It is well suited for off-road enthusiasts, daily drivers seeking enhanced safety, and anyone looking to maintain reliable brake performance under demanding conditions. This kit is especially beneficial for vehicles equipped with larger wheels or those used in towing and heavy-duty applications.

Baer Brakes develops high-performance braking systems built to improve stopping power, heat management, and pedal confidence. From big brake kits to performance rotors and calipers, Baer focuses on engineered, detail-oriented solutions that help performance cars, trucks, and restomods brake harder and stay consistent under repeated heavy use.