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Help With Parts Needed To Flat Tow a 2015 Fiat 500  

Updated 01/05/2026 | Published 01/02/2026

Question:

Hello, I am looking for the correct products to flat tow my 2015 Fiat 500 sport behind my 2019 Holiday Rambler Admeral RV. Can you suggest with part numbers which products I need to purchase please? This will need to include the wiring harness that allows charging from the RV to the car if I am correct. Thank you

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Expert Reply:

Hey, Shane! Happy to help

I'm going to assume that this is a manual transmission? If not let me know because you will need completely different parts! Below is a full list of parts that you will need to be able to safely flat tow your 2015 Fiat 500.

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms part # 522013-1A
Roadmaster Falcon 3HD Tow Bar part # RM27NQ
Replacement Quick Disconnect Crossbar Assembly for Roadmaster Tow Bars part # 910021-00
Roadmaster 4-Diode Universal Wiring Kit - 7-Way to 6-Way Coiled Adapter Cord part # RM-15267
Roadmaster Battery Charge Line Kit for Towed Vehicles part # RM-156-25
Demco Stay-IN-Play Duo Braking System for RVs w/ Hydraulic Brakes - Wireless Monitor - Part # DM86VR
Roadmaster Stop Light Switch Kit part # RM-751455
Safety Cable Extensions part # RM27DQ
Blue Ox Adjustable Drop Hitch Receiver Adapter - 2" Hitches - 8" Rise/Drop part # BLU28XR

The last part is the best one I could recommend based off what I could fine. Your tow bar once mounted needs to be within 3" from level. The baseplate on your Fiat will be 16.5" off the ground so the Blue Ox adjustable adapter should be more than enough to get you within that 3". The extensions are needed when using the high low adapter since it will be adding in the length between the RV hitch and the front of the Fiat.

Let me know if you have any questions about these parts, you can ask this by replying below. Is this going to be your first flat tow set up or have you flat towed before?

expert reply by:
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Gwendolyn Y
Flat Tow Safe Zone
Flat Tow Safe Zone
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