Rhino-Rack JC-03478 Heavy Duty RX300L Black 3 Bar Rhino-Rack Backbone Roof Rack for JEEP Wrangler JK Hard Top 4DR 4WD (02/2011-03/2019)

SKU code: JC-03478-1

This roof rack solution is specifically designed to suit a JEEP Wrangler JK Hard Top 4DR 4WD (02/2011-03/2019).
This kit includes all fitting components required for installation.

Rhino-Rack's JC-03478 is comprised of:

  • SUB0800 - Quantity: 1
  • QMHD05 - Quantity: 2
  • RX300L-4 - Quantity: 1
  • RX300L-2 - Quantity: 1
  • RJKB1 - Quantity: 1
  • QMHD10 - Quantity: 1
  • RB1500B - Quantity: 3


The Heavy Duty RX300L roof rack system attaches to the Rhino-Rack Backbone. This simple design improves on the existing strength of your Jeep Wrangler without compromising the sleek and bold look of this iconic vehicle. The Rhino-Rack Backbone is fitted to the internal chassis of your Jeep Wrangler. This design will not hinder any of the current capabilities of your Jeep's design. The legs and cross bars of the RX300L system can easily be removed when they are not required using a revolutionary trigger locking system.

Fixed Mount Legs (RX300)

The Rhino-Rack RX300 Leg system replaces a suite of legacy options to provide seamless fitting options. Built for strength and tested to meet high standards, the RX300 provides a seamless and functional fit with easy DIY installation.

  • RX300 is available in LOW & HIGH options to suit a variety of situations
  • Compatible with Rhino-Rack Vortex, Sports and Reconn Bars as well as Pioneer Platforms for easy installation.
  • Static and crash tested to ISO 11154 standards, with installation tools included.
RX300Leg

Fixed Mount Legs (RX300)

The Rhino-Rack RX300 Leg system replaces a suite of legacy options to provide seamless fitting options. Built for strength and tested to meet high standards, the RX300 provides a seamless and functional fit with easy DIY installation.

  • RX300 is available in LOW & HIGH options to suit a variety of situations
  • Compatible with Rhino-Rack Vortex, Sports and Reconn Bars as well as Pioneer Platforms for easy installation.
  • Static and crash tested to ISO 11154 standards, with installation tools included.
RX300Leg

Backbone Mounting System

The Rhino-Rack Backbone is designed to provide the maximum load carrying capacity for your vehicle while enhancing its aesthetics. ItÂ’s ingeniously simple and perfectly complements the full range of Pioneer platforms.

  • Tough Looks: Rugged design and aesthetics
  • Low profile, Light Weight Mounting system
  • Pairs perfectly with the Pioneer Platform Range
Rhino-Rack Backbone Logo

Heavy Duty HD Bar (Black)

Rhino-Rack Heavy Duty Bars are designed for maximum versatility and durability, making them ideal for trade applications. Combining a Flat profile with dual Uni-Strut compatible channels, these bars are purpose built to work hard..

  • Durable construction suitable for commercial and off-road use.
  • Large range of commercial carrying solutions available.
  • Designed to carry Ladders, Conduit, Building Materials etc.
Heavy Duty Bar Black Image

Utilising their highly regarded Heavy Duty bars, this system offers you strength and compatibility with a wide selection of Rhino-Rack accessories.

Key Features:

  • No tools required for installation and removal once system has been initially fitted
  • Ideal for low clearance
  • Simple design improves on the existing strength
  • Rhino-Rack Backbone is fitted to the internal chassis of your Jeep Wrangler
  • Design will not hinder any of the current capabilities of your Jeep's design
  • A lockable cover plate that protects the locking mechanism, Masterkey compatible
  • Single person operation allows quick and easy attachment
  • Simple trigger locking system
  • Tested to AS1235:2000 (Australian), ISO11154:2006 (City Crash/International) standards
  • Lifetime Warranty
Colour Black
Bar Style Overhang Bar
Bar Type Heavy Duty
Num Of Bars 3
SKU JC-03478-1
Model # JC-03478
Brand Rhino-Rack

More for your Vehicle