How to Replace a Lance 6-Pin Plug w/a Standard 7-Way Connector
Updated 05/21/2026 | Published 05/16/2026
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Question:
I just bought a used2022 Lance 650 truck camper. I realize the cable hookup from the Lance is not compatible with my 2021GMC truck bumper inlet. What do I need to purchase from Trailer for an adapter cord and plug? Thank you!
asked by: Michael L
Expert Reply:
Hey Michael, congrats on your new camper. I have a solution for you but we do not have a simple 7-way adapter that is compatible with Lance's proprietary 6-pin plug. What I recommend doing is replacing your Lance 6-pin connector and rewiring it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item # e99011.
The etrailer item # e99011 includes a 6' long 7-way cable and a convenient weather proof junction box. You'll be able to use the junction box to rewire the Lance plug following the wiring orientation below:
Black Wire: 8 Gauge, 12-volt power
White Wire: 8 Gauge, Ground (-)
Green Wire: 14 Gauge, Running Lights
Red Wire: 16 Gauge, Left Turn Signal
Brown Wire: 16 Gauge, Right Turn Signal
Yellow Wire: 16 Gauge, Back-up Lights
The etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box item # e99011 is not labeled by function but the wire colors on the 7-Way do match up with the ones on the Lance 6-pin. The only one you won't use is the blue wire because you won't need a brake controller.
Do you need any tie down anchors for your Sierra? If so I would just need to know your truck's bed length and what kind of trailer hitch you have installed on it.
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Product Page this Question was Asked From
etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 7 Blade
- Plug and Lead
- etrailer
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on Trailer Wiring
Michael L.
5/19/2026
Thanks for the info. Bi ordered the part today. I already have tie downs. Mike