What Is The Difference Between The Roadmaster Smart Diode Kits RM63MR And RM38FR?
Updated 08/06/2025 | Published 08/03/2025
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Question:
Whats the difference between rm63mr and rm38fr? Thank you.
asked by: James K
Helpful Expert Reply:
That is a very good question, James!
I was going back and forth between them until my head started hurting, so I decided to just ask Roadmaster. What I learned was Earth shattering... not really.
They are actually the same thing, but the Roadmaster Smart Diode Kit # RM63MR has instructions that are catered to Jeeps with the ParkSense feature and the Roadmaster Smart Diode Kit # RM38FR has more generalized instructions. That's the only difference.
What is the year, make, model, and trim of the vehicle you are wanting to install this in?
Product Page this Question was Asked From
Roadmaster Smart Diode Kit for Variable Voltage LED Tail Lights - 7-Way to 6-Way Adapter Cord
- Flat Tow Wiring Harness
- Splices into Vehicle Wiring
- Diode Kit
- Universal Fit
- 7 Blade to 6 Round
- Roadmaster
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on Flat Tow Wiring Harness
James K.
8/5/2025
I could not tell any differences so I order the cheaper one. It's going on a 2005 Jeep LJ that has been retrofitted with LED tail lights, so either way it should work. Thanks for your honest reply. Jimmy K