How To Use Roadmaster Stowmaster 5000 Tow Bar On 2018 GMC Sierra 1500

Question

Question:

I have recently purchased a Diesel Pusher that included a 2000 Ford Explorer towed vehicle. I want to upgrade to the above pick up while re-using the Roadmaster 5000 drawbar that came with the old unit. What components do I need and what would the price be? Thanks,,

asked by: Thomas C

1

Helpful Expert Reply:

The Roadmaster Stowmaster 5000 Tow Bar can be used on a 2018 GMC Sierra 1500 with the Roadmaster Crossbar-Style Base Plate Kit part # RM-3177-1. That said, you'll still need safety cables, wiring, and a braking system to complete your setup. I have attached these items below.

Roadmaster 80" Coiled Safety Cables part # RM-653
Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit part # RM-15267
Demco Air Force One Supplemental Braking System part # DM26VR
Roadmaster Automatic Battery Disconnect part # RM-766 (Optional)

expert reply by: Conner L

1

Answer 1

I took a look at the owner's manual for a 2019 GMC Sierra 1500 Denali and both it and the standard 1500 can be flat towed so long as it is a four-wheel drive with a two-speed transfer case, and according to page 236 of the manual, "To shift…

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Answer 2

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 3

Both the Roadmaster and Blue Ox tow bars are great options. But if it was my decision to make I would go with the Blue Ox Avail part #BX7420 as we have found that the Blue Ox tow bars are a little easier to connect and disconnect from. Also this tow…

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Answer 4

Hey Jonathon thank you so much for all of that additional information! To haul your bikes behind your class C Sprinter motorhome, while flat towing your Mini, I recommend the Hollywood Racks RV Rider Bike Rack item #HLY64FR and the Roadmaster Dual…

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Answer 5

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 6

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 7

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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Answer 8

Thanks for the information Kevin! To flat tow your 2025 Ford Bronco with a standard bumper and LED lights, I recommend the following parts: Tow Bar and Safety Chains - etrailer XHD Non-Binding Tow Bar for Roadmaster Direct-Connect item #e84ZR Base…

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Answer 9

Hi Ken! It looks like you have almost everything you need to set up your 2026 Jeep Gladiator Sahara for flat towing. The etrailer Invisible Base Plate Kit - Removable Arms #e98948 is a perfect fit and the etrailer XHD Non-Binding Tow Bar - RV Mount -…

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Answer 10

Gladly! The difference between the Blue Ox Patriot 3 Radio Frequency, Portable Braking System BRK2019 and the Blue Ox Patriot Radio Frequency, Portable Braking System #BLU37TR is that the Blue Ox Patriot 3 RBRK2019 is older, no longer available, and…

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Answer 11

Hey Kelvin, welcome back. To flat tow a 2026 Ford Maverick with your Demco Commander II Tow Bar item #DM9511012, I recommend the following parts: Baseplate Kit - Demco Tabless Base Plate Kit item #DM38CV Wiring Harness - Roadmaster Diode 7-Wire to…

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Answer 12

Hey Christian, welcome to the world of RV-ing! So in addition to the Roadmaster Nighthawk #RM-676 you're also goin to need: - A baseplate kit, like the Roadmaster Direct-Connect Base Plate Kit #RM-521453-5. These attach to the Jeep itself so you…

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How To Use Roadmaster Stowmaster 5000 Tow Bar On 2018 GMC Sierra 1500

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