DBA 4000 Series Plain Rotor (REAR)

2007–2010 Jeep Wrangler 3.8L V6 / 2013–2017 Jeep Wrangler 3.6L V6

Part #: DBA42537

Overview

The DBA 4000 Series Plain Rotor is engineered specifically for the rear braking system of Jeep Wrangler models equipped with 3.8L and 3.6L V6 engines from 2007 to 2010 and 2013 to 2017 respectively. Designed for drivers who demand reliable and consistent braking performance, this rotor excels in both daily driving and more demanding conditions. Its robust construction and advanced cooling technology ensure superior heat dissipation, reducing brake fade and extending rotor life under intense braking scenarios.

Whether you are upgrading worn factory rotors or enhancing your vehicle’s braking capability, the DBA 4000 Series offers a durable and high-performance solution tailored to the unique needs of Jeep Wrangler enthusiasts.

Key Features

DBA’s 4000 Series Plain Rotor incorporates innovative design elements and premium materials to deliver exceptional braking performance and longevity:

• Cast from XG-150 high carbon alloyed iron for enhanced strength and durability
• Thermal Stability Profiling (TSP) process to minimize warping and cracking under extreme heat
• Patented Kangaroo Paw ventilation system featuring 144 diamond and teardrop-shaped pillars
• Up to 30% increase in surface area compared to traditional rotors for improved heat dissipation
• 20% better cooling efficiency than standard straight vane designs
• Precision-machined for a perfect fit and smooth braking operation
• Plain rotor design ideal for those seeking reliable, consistent braking without the need for drilled or slotted rotors

Construction & Design

The DBA 4000 Series rotors are crafted from XG-150 high carbon alloyed iron, a material known for its superior thermal conductivity and resistance to wear. This metallurgy allows the rotor to withstand the repeated high temperatures generated during aggressive braking without compromising structural integrity. The Thermal Stability Profiling (TSP) process further enhances durability by relieving internal stresses, reducing the risk of warping and cracking over time.

DBA’s signature Kangaroo Paw ventilation design sets this rotor apart. The unique pattern of 144 diamond and teardrop-shaped pillars increases the rotor’s surface area and promotes more efficient airflow through the rotor vanes. This innovative approach significantly improves cooling performance, helping maintain optimal brake temperatures and consistent stopping power.

Installation & Fitment

This rear rotor is a direct fit replacement for Jeep Wrangler models from 2007 to 2010 with the 3.8L V6 engine and from 2013 to 2017 with the 3.6L V6 engine. Installation requires no modifications and can be completed using standard brake service procedures. It is recommended to replace rotors in pairs to ensure balanced braking performance and to inspect brake pads and hardware during installation for optimal results.

What's Included

• One DBA 4000 Series Plain Rear Rotor (Part # DBA42537)

Ideal For

This rotor is ideal for Jeep Wrangler owners seeking a durable, high-quality replacement rotor that offers improved heat management and consistent braking performance. It suits daily drivers, off-road enthusiasts, and anyone looking to maintain or upgrade their vehicle’s rear braking system with a reliable, OEM-quality component.

DBA (Disc Brakes Australia) designs and produces aftermarket and OE-replacement braking components, with a strong reputation in performance brake rotors and related hardware. Their range covers rotors and complementary brake parts aimed at improving heat management, consistency, and stopping confidence for spirited street driving, towing, and track-day duty.