Bestop Pro Defrost Wire Harness

2007–2011 Jeep Wrangler 3.8L V6, 2012–2018 Jeep Wrangler 3.6L V6

Part #: 54857-01

Overview

The Bestop Pro Defrost Wire Harness (REAR) is a specialized electrical wiring kit designed specifically for Jeep Wrangler owners who are installing a Trektop Pro soft top on vehicles that were not originally equipped with a hardtop. This harness enables seamless integration of the rear window defroster with the vehicle’s existing electrical system, ensuring reliable operation and convenience during colder months.

Engineered to fit Jeep Wrangler models from 2007 through 2018 with 3.6L and 3.8L V6 engines, this harness is essential for maintaining the full functionality of your Trektop Pro’s rear defroster. It eliminates the need for complex custom wiring, providing a plug-and-play solution that saves time and effort.

Key Features

Designed with precision and durability in mind, the Bestop Pro Defrost Wire Harness offers several key benefits:

• Specifically engineered for Jeep Wrangler 2007–2018 3.6L and 3.8L V6 models
• Enables rear window defroster functionality when installing a Trektop Pro on non-hardtop vehicles
• Plug-and-play design for straightforward installation without cutting or splicing factory wiring
• High-quality wiring and connectors ensure reliable electrical performance and longevity
• Protects vehicle electrical system integrity by using OEM-style components
• Compatible with factory electrical systems for seamless integration
• Helps maintain visibility and safety in cold or foggy conditions by powering the rear defroster

Construction & Design

The Bestop Pro Defrost Wire Harness is constructed using durable, automotive-grade wiring and connectors that meet or exceed OEM standards. Each component is engineered to withstand the rigors of off-road use and exposure to the elements, ensuring consistent performance over time. The harness is designed to fit precisely within the Jeep Wrangler’s existing wiring pathways, minimizing clutter and preventing interference with other vehicle systems.

Attention to detail in the design process guarantees that the harness maintains the integrity of the vehicle’s electrical system while providing a reliable connection to the rear defroster. This results in a clean, professional installation that preserves the vehicle’s value and functionality.

Installation & Fitment

Installation of the Bestop Pro Defrost Wire Harness is straightforward and intended for Jeep Wrangler models from 2007 to 2018 equipped with 3.6L or 3.8L V6 engines. The harness is designed to connect directly to the vehicle’s factory wiring without the need for modifications or splicing, making it accessible for both professional installers and experienced DIY enthusiasts.

When mounting a Trektop Pro on a Wrangler that was not originally built with a hardtop, this harness is a necessary component to ensure the rear defroster functions correctly. Installation instructions are typically included, and the plug-and-play design helps reduce installation time and complexity.

What's Included

• Bestop Pro Defrost Wire Harness (REAR)
• OEM-style connectors and wiring
• Installation instructions

Ideal For

This wire harness is ideal for Jeep Wrangler owners who want to install a Bestop Trektop Pro soft top on models originally equipped without a hardtop and who require full rear defroster functionality. It is perfect for enthusiasts who value convenience, safety, and maintaining factory-level electrical system integrity while upgrading their vehicle’s top.

Today, more than 67 years later, Bestop is the leading manufacturer of premium soft tops for Jeep Wranglers and CJs in the world, and has been the exclusive provider of OE soft tops for Jeep Wranglers for more than three decades running.