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Flat Towing Components for 2017 Ford Fiesta Manual Transmission  

Updated 08/12/2026 | Published 08/08/2026



Question:

I’m looking to install a Roadmaster Nighthawk to flat tow a 2017 Ford Fiesta SE with Ecoboost and manual transmission. Could you see if I have what I need? RM-676 Nighthawk RM-156-25 Battery Charge RM-766 Battery Disconnect RM-8700 RM Invisibrake DM9519285 - Demco Base Plate RM-15267 Diode Wiring RM-88400 Brake Relay Thank you.

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Expert Reply:

Thanks for reaching out Kelly. I'd be happy to help you get your 2017 Ford Fiesta set up for flat towing. Overall, you've put together a great parts list, but there are a couple of items you can eliminate. For example, your Fiesta does not require the battery to be disconnected while flat towing, so you won't need the Roadmaster Battery Disconnect # RM-766.

Also, since you're planning to use the Roadmaster Nighthawk All-Terrain Tow Bar # RM-676, you won't need the complete Roadmaster 4-Diode Universal Wiring Kit # RM-15267. The Nighthawk already includes some of those wiring components, so we can simplify the setup and save you a little money. I'd also recommend using a Roadmaster direct-connect base plate, since it's designed to pair directly with the Nighthawk tow bar. Here's what I'd recommend for your Fiesta:

Roadmaster Nighthawk All-Terrain Tow Bar # RM-676
Roadmaster Direct-Connect Base Plate Kit - Removable Arms # RM-524441-5
Roadmaster Universal Hy-Power Diode Wiring Kit # RM-152
Roadmaster Bent Electrical Socket Bracket # RM-910030-5 (optional, but recommended for mounting the electrical connector)
Roadmaster Brake-Lite Relay Kit # RM-88400
Roadmaster Battery Charge Line Kit for Towed Vehicles # RM-156-25

For supplemental braking, I'd recommend a proportional braking system rather than a preset system like the Roadmaster InvisiBrake # RM-8700. Proportional systems apply the Fiesta's brakes in proportion to the braking force being applied by the motorhome, resulting in smoother, more consistent braking.

My recommendation depends on the type of braking system your motorhome has:

If your motorhome has air brakes: Demco Air Force One # DM26VR
If your motorhome has hydraulic brakes: Demco Stay-IN-Play Duo # DM86VR

You will also likely need a high low adapter like # RM-048-6 so that your vehicle is as level as possible with the motorhome when being flat towed. The total drop needed may be simpler to determine once your base plate is installed.

Out of curiosity, what type of motorhome do you have?

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Christopher H
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