Do You Have A 4 Round To 7 Round Adapter For 337TL257M?
Updated 09/08/2025 | Published 06/09/2025
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Question:
Hello, I’m interested in purchasing Part Number: 337TL257M but comes with a 4 way round connector. Is there an adapter to take the 4 round to a 7 round?
asked by: Edward T
Expert Reply:
Hey Edward,
There is not an adapter to go from a 4 round pin to a 7 pole connector. What I recommend doing is getting the light kit from Roadmaster # RM-2120. That gives you a 4 flat connection which we do have adapters for to work with a 7 pole connector. You would then just plug in the 4 flat to 7 round adapter from Hopkins # HM47065 into your motor home and it would be able to accept that 4 flat connection.
What vehicle are you wanting to get these for?
Product Page this Question was Asked From
Heavy-Duty Magnetic Tow Light Set - Red Incandescent - 30' Harness with 4-Pin Round Plug
- Flat Tow Wiring Harness
- Bypasses Vehicle Wiring
- Removable Tail Light Kit
- Universal Fit
- 4 Round
- Buyers Products
more information >
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Nick S.
9/8/2025
Hey Edward, Did you have a chance to try the Roadmaster light kit and the Hopkins adapter for your setup? I'm curious to know if it worked out for your vehicle, as it could help others looking for a similar solution.