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How to Install a MBRP Rock Rail Kit, Black Coated on your 2007-2017 Jeep Wrangler JK

Tools Required
  • Basic Hand Tools Required


1. Remove the factory installed rock rails [if equipped] by removing the fasteners located at the pinch weld, and the underside in the floor.

2. There are 4 factory holes in the pinch weld area. Please note that a couple of the holes will need to be drilled out to a larger size using a ½” drill bit to accommodate installation of the Panel Nuts. Install the 8 Panel Nuts [4 per side] by aligning them with the factory holes in the pinch weld area, then sliding them up into place over the hole. The Panel Nuts will snap into place when installed correctly. Please note that there are 4 spare panel nut that may need to be installed in the floor if they are not present from the factory. Refer to Figure 1.

Figure 1


3. Install the Driver Side Rock Rail Assembly by holding it up in position and installing the 2 fasteners that thread into the floor first. These should only be installed finger tight for now. The assembly can hang on these 2 fasteners while you are getting ready to install the remaining hardware. Refer to Figure 2. Note: The Driver Side and Passenger Side Rock Rail Assemblies are identified with a D and a P welded on the inside of the rail. 

Figure 2


4. Installation of the remaining fasteners is a lot easier with the weight of the Rock Rail supported with a floor jack. Lift the assembly up into position and using the supplied 5/16”x1” Hex Bolts and Flat Washers, thread the bolts through the Rock Rail into the Panel Nuts previously installed. You can access the mounting points through the cut-outs in the bottom of the Rock Rail. Do not tighten the fasteners yet. Refer to Figure 3.

Figure 3


5. With all the fasteners installed finger tight, confirm there is no risk of interference with the body/ frame. If everything is ok, tighten all the fasteners.

6. Follow the same steps for installation of the Passenger Side Rock Rail. 


Congratulations! You are finished. Thank you for purchasing an MBRP INC. Product.