Billetworkz Automatic Shift Knob Adapter

2018–Present Jeep Wrangler JL Automatic Transmission

Part #: BW-AA-JPJLAU-PD-RED

Overview

The Billetworkz Automatic Shift Knob Adapter is a precision-engineered upgrade designed specifically for the Jeep Wrangler JL models from 2018 to the present with automatic transmissions. This adapter replaces the factory shift knob assembly to provide a more streamlined and intuitive shifting experience. Unlike the stock design that requires pressing a button to engage gears, this adapter features a push-down lockout mechanism that simplifies gear changes while maintaining safety and reliability.

Ideal for Jeep enthusiasts looking to enhance both the aesthetics and functionality of their Wrangler’s interior, this adapter works seamlessly with Billetworkz shift knobs to deliver a clean, performance-inspired look. It offers a refined tactile feel that complements the rugged character of the Wrangler JL without compromising everyday usability.

Key Features

Engineered for seamless integration and superior user experience, the Billetworkz Automatic Shift Knob Adapter includes the following key features:

• Direct replacement for the factory automatic shift knob assembly on Jeep Wrangler JL (2018–Present)
• Push-down lockout mechanism replaces the traditional button for gear engagement
• Utilizes the existing spring inside the factory shifter assembly for smooth return action
• CNC-machined from premium 6061 aluminum for durability and precision
• Available in multiple anodized finishes including Black, Red, and Blue to match your interior style
• Designed specifically to fit Billetworkz shift knobs; compatibility with third-party knobs may vary
• Provides a sleek, performance-driven upgrade that enhances both form and function
• Maintains factory safety features while improving shifting ergonomics

Construction & Design

The adapter is crafted from high-grade 6061 aluminum, known for its excellent strength-to-weight ratio and corrosion resistance. Each unit is CNC-machined to exacting tolerances, ensuring a perfect fit and finish that complements the rugged design of the Jeep Wrangler JL interior. The anodized finish not only adds visual appeal but also protects the adapter from wear and environmental exposure.

The innovative push-down lockout mechanism replaces the factory button with a more intuitive action, allowing drivers to shift gears by simply pushing down on the adapter. This design leverages the existing spring mechanism inside the factory shifter assembly, providing a smooth and reliable return without adding complexity or requiring additional components.

Installation & Fitment

Installation is straightforward and requires no permanent modifications to your Jeep Wrangler JL. The adapter is designed as a direct bolt-on replacement for the factory automatic shift knob assembly. It fits perfectly with Billetworkz shift knobs, ensuring a secure and stable connection. Users should verify compatibility if using third-party shift knobs, as fitment may vary.

This upgrade is ideal for Jeep owners who want to enhance their vehicle’s interior aesthetics and shifting feel without compromising factory functionality or safety.

What's Included

• Billetworkz Automatic Shift Knob Adapter (6061 aluminum, anodized finish)
• Installation hardware
• Instructions for installation

Ideal For

This adapter is perfect for Jeep Wrangler JL owners seeking a refined, performance-inspired interior upgrade. It suits enthusiasts who appreciate quality craftsmanship and desire a more intuitive shifting experience without sacrificing factory safety features. Whether upgrading your daily driver or customizing your off-road rig, this adapter enhances both style and function.

Founded in 2014 by Austin Barnett, Billetworkz was born from a deep love for custom builds and the car community. With a Mechanical Engineering degree from Penn State, Austin brings a sharp eye for performance, precision, and personalization. His passion for cars started young—fueled by time spent with his father—and has only grown since. His iconic “Rexzilla” RB26 build is a true reflection of the craftsmanship and dedication behind everything we create at Billetworkz.