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Expert Answers about Jeep JK Wrangler Unlimited


  • Does Brake Controller Installed on Trailer Require Blue Wire to Be Connected on Tow Vehicle
  • Since your trailer already has a brake controller on it you shouldn't need to connect the blue wire from the Curt Trailer Connector Adapter with Backup Alarm # C57102 so you should be able to just cap it off and be fine. I say "should" because any brake controller I've seen that installs on the trailer only requires the standard light functions along with the 12V power. If you can confirm what brake controller you have then I can double check the installation.
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  • Can Brake Controller Power Be Routed Through a Battery Isolation Solenoid
  • As a safety feature, brake controllers should be powered by a constant 12-volt supply via a direct connection to the vehicle's battery. This is purposely done so there's no chance of the user forgetting to turn on the controller before towing. Theoretically, you could install a solenoid as you mentioned, but I wouldn't recommend doing so as it would add an additional failure point that is honestly not necessary. Brake controllers will go into a 'sleep mode' after 10-20 minutes of inactivity....
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  • Removing Roadmaster Invisibrake Supplemental Braking From One Vehicle to Install on Another
  • Because you are removing the Roadmaster Invisibrake Supplemental Braking System # RM-8700 from your 2004 Jeep Wrangler, you will need to seal up the vacuum line on your 2004 Wrangler. You can do this a couple of different ways. You can leave the T-connector and then add a bolt and hose clamp to seal the hose or you can remove the T-connector and use a coupler and two hose clamps to seal the hose. The latter is my recommendation for a cleaner fix and you can use the check valve already...
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  • How Does The Roadmaster InvisiBrake Install On A 2018 Jeep JK Wrangler?
  • The Replacement Wiring Harness for Roadmaster InvisiBrake Supplemental Braking System # RM-945204-00 for the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 will connect to the switch from the jeep to the motorhome. I have attached a the wiring diagram for the Roadmaster InvisiBrake for you to reference.
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  • Is There a Bypass Switch for Aries ActionTrac Boards on 2018 Jeep JK Wrangler Unlimited W/O Doors
  • The Aries ActionTrac Motorized Running Boards with LED Lights # AA3036570 use a magnetic switch that interacts with the doors on your 2018 Jeep JK Wrangler Unlimited so if you remove the doors you need to pickup the Kit # AA3020000 as well which provides a manual operating switch to activate the steps.
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  • Installing Hopkins 4-Way to 7-Way Trailer Adapter for Just 4-Way Functions
  • When using a trailer connecter like the Hopkins Endurance Multi-Tow 4-Way Flat to 7-Way RV Trailer Adapter w/ 4-Way Vehicle End Plug # HM47180 you will need to ground the white wire to your vehicle to make sure the trailer connector works correctly. You want to attach that ring terminal to a bare metal connection on your frame. This will allow your 4-way functions to transfer to the 7-way blades correctly.
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  • How Does Trektop NX Jeep Soft Top Install on a 2019 Jeep Wrangler Unlimited JL
  • Yes, the Bestop Trektop NX, part # B5686335, does fit your 2019 Jeep Wrangler Unlimited. It attaches directly to your JL's factory hardware, you don't need a bow system or anything additional to install it. The doors themselves aren't included but the door surrounds are.
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  • Can a 2018 Jeep JK Wrangler Unlimited be Towed Using a Tow Dolly
  • I took a look at the online version of the owner's manual for your 2018 Jeep JK Wrangler Unlimited and it looks like on page 318 it states that you can either tow your vehicle with all 4 wheels on the ground or all 4 wheels off of the ground. I recommend checking your copy of the owner's manual to confirm this. We have everything you need to flat tow your Jeep but unfortunately it doesn't look like you can utilize your tow dolly for this. Since you like your Demco Kar Kaddy I recommend...
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  • Can I Install a Tekonsha Primus IQ Brake Controler on 2018 Jeep JKU
  • Yes. The Tekonsha Primus IQ # TK90160 is compatible with your 2018 Jeep JKU, but there are no available adapters to make it an easy plug and play installation so you will need to hard wire it into your vehicle. I've linked the installation of a similar Tekonsha brake controller for you to use as a guide during installation, since the process will be identical. You will use some of the wiring that you've run when installing your 4/7 way connector during this process, but you'll also need...
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  • Are Base Plate to Frame Safety Cables Required for the Roadmaster XL, EZ4, or EZ5
  • I spoke to my contact at Roadmaster and they stated that the short safety cables that you are referring to are not required when using either the Roadmaster XL part # 1444-1, Roadmaster EZ4 part # RM-521448-4, or Roadmaster EZ5 part # RM-521448-5 on your 2018 Jeep JK Wrangler Unlimited. You can add them for extra peace of mind using part # RM-910648-12 but they are not required. The safety chain loops you are referring to on the above base plate kits go to the motorhome not the vehicle. Please...
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