Roadmaster Base Plate Recommendation for 2021 Ram 1500 Big Horn
Published 11/18/2021 >
Products Featured in This Question
Question:
Which Roadmaster base plates do I need for my 2021 Ram 1500 Big Horn. It has the 5.7L gas engine.
asked by: Mike M
Expert Reply:
The 2019 Ram 1500 Big Horn would use the Roadmaster # RM-522203-5 base plate.
If you don't already have a tow bar, I'd recommend the Roadmaster Nighthawk All-Terrain tow bar, part # RM-676. The tow bar includes the safety cables and the umbilical cable. For taillight wiring, use # RM-154. For a supplemental braking system, use # DM86VR if your motorhome has hydraulic brakes or # DM26VR if the motorhome has air brakes.
If the installed height of the base plates has a height difference greater than 3 inches compared to the receiver height of the motorhome, you'll need a high/low adapter to bring the difference within 3 inches. I'll link to an article that explains how to measure this, as well as to a listing of our high/low adapters.
I've linked to some videos you might find helpful.
Product Page this Question was Asked From
Roadmaster Nighthawk All-Terrain Tow Bar w/ LED Lights - Non-Binding - RV Mount - 8,000 lbs
- Tow Bar
- Hitch Mount
- Telescoping - Non-Binding
- Aluminum
- 8000 lbs
- Fits Roadmaster Base Plates
- Stores on RV
- Cables Included
- Roadmaster
more information >
Featured Help Information
Instructions
Miscellaneous Media






Continue Researching
- Q&A: Which is Better Roadmaster or Blue Ox Tow Bar
- Article: We Used 34 RV Tow Bars, and These are the Best for Flat Towing
- Article: Best Vehicles to Flat Tow Behind an RV
- Article: How to Measure for Trailer Hitch Drop
- Article: Flat Towing Package for 2007-2018 JK Jeep Wrangler and Wrangler Unlimited
- Q&A: Recommended Parts for Flat Towing a 2025 Ford Maverick
- Article: Must-Have Flat Towing Components
- Article: How to Choose a High-Low Adapter
- Article: Trailer Wiring Diagrams
- Q&A: Recommended Flat Towing Set Up for a 2026 Ford Maverick Hybrid
- Q&A: Recommended Complete Flat Towing Setup for a 2024 Jeep Wrangler
- Q&A: Recommended Flat Tow Parts for a 2025 Jeep Wrangler Sport Towed By A Tiffin RV w/ Quick Connect Air
- Q&A: Best Flat Tow Setup For 2026 Ford Maverick XLT Hybrid
- Q&A: Parts Needed to Flat Tow 2024 Ford Maverick Hybrid

