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Malone T-Slot Integration HW Kit for Aero Style CrossBars

T-Slot Mounting Kit replaces the standard mounting hardware included in the DownLoader, J-Pro, J-Pro 2 and J-Loader. The MPG6604 utilizes the T-slot in all Malone aero bars and most aftermarket aluminum load bars with T-slots. Provides a seamless look to the carrier installation and allows more under bar clearance. Longer bolts may be required for Pre-2020 Malone J-Racks.

Fits MPG114 Downloader, MPG116 J-Pro, MPG117 J-Pro 2 and MPG118 J-Loader. Sold in sets of four. Lifetime Limited Warranty.


  • T-slot hardware kit fits all Malone Aero Bars and most aftermarket aluminum bars with top side T-slots
  • Includes a custom hex wrench for quick installation of this upgraded fit kit
  • Fits the MPG114, MPG116, MPG117, MPG118 Malone carriers
  • Lifetime Limited Warranty


  • Bolt Length 1-1/2” option to add 1-3/4"
  • T-Nut Length: 25.0mm Width: 20.0mm Height: 4.5mm
  • Thread – 5/16’’-18
  • Electroplated hardware for corrosion resistance

What’s In The Box:

  • (4) T-Slot Nuts
  • (4) Bolts **includes option to add longer bolts
  • (1) 3/16" Allen Wrench
  • (1) Installation Card