Adapter and Re-Wiring Kit for Lance Truck Camper with Round Pin 7-Way Plug

Question:

I have just bought a used Lance Camper it has a 7 pin round plug on it. My truck has a 7 blade RV plug in the bed from a gooseneck trailer will this adapter work or will it need to be rewired as the positions of the 7 pin round Lance Specific Plug may be different from the 7 blade?

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Expert Reply:

A junction box/7-way plug kit like Epicord # 277-000141 or # e99011 lets you convert the camper to match the 7-way RV blade type connector format. This avoids the extra connection points and potential trouble spots from using separate adapters. These items use different wire colors so be sure to follow the wiring guide for the specific kit you select.

The existing wires on the camper will need ring terminals like # 44-5310A (for 12 and 10 gauge wires) and # DW05702-1 (for 16 and 14 gauge wires). These leads from the camper will join up with the included 7-way blade-style plug inside the junction box.

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Adam R

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Follow up Questions

Steve V.

Doing the adapter fit to 7-way on truck this week. Thanks for the links to the above parts! Question for anyone that's done this successfully: Do/did the colors match correctly (right turn, left turn, charging, brakes, reverse, etc.) or is there any swapping to be done? Thanks in advance! 81226

Reply from Chris R.

The colors should match your existing wiring but it's not a guarantee since trailers aren't really standardized. You'll just want to go by function to be safe. 66852

Mike A.

Back to Lance camper plugs. In a related expert reply, etrailer's Adam R. commented: "...A junction box/7-way plug kit like Epicord # 277-000141 or # e99011 lets you convert the camper to match the 7-way RV blade type connector format. This avoids the extra connection points and potential trouble spots from using separate adapters. These items use different wire colors so be sure to follow the wiring guide for the specific kit you select..." I was informed by a Lance dealer and separately by the N.W. Lance territory rep that the Lance plug and harness uses 8 gauge wire to charge the camper batteries quicker. Is that e-Trailer's understanding too? If so, then the adapter solutions will charge the camper batteries more slowly, correct? (I can forward dealer/rep contact info in a separate email if it's helpful) 77142

Reply from Chris R.

Lance does use heavier gauge wiring for their campers. In theory this would lead to less resistance - thus better/faster charging, but in reality the actual difference when going to just a slightly smaller wire for this circuit (like 10 gauge # 10-1-1 ) might not even be noticeable. 62853

Reply from T

@ChrisR The reason Lance uses 8 gauge wires for the 12+ and 12-, is so that when a person wants to completely use the camper on said 12v DC, the batteries in the truck will completely supply enough current to never drain the camper battery! So, if you stop for lunch, the refer won't kill the battery. Second, you won't smoke the tiny 12 or 10 gauge wires! Its one of the best things Lance ever did. No one should ever recommend a person cut off a Lance plug for an inferior smaller wire plug. Its kinda foolish. 69576

Jerry M.

I wired my Lance 650 truck-camper connection cord into my trailer lights cable and it works!! Much to my surprise. However, I did not fuse it and am wondering if I need to? If I do, can I run a fuse or breaker box directly from the battery, to the box and from the box to the camper wires? I happen to have a 2012 Ford that was used in the Oil industry, so it has some unique features, one of which is a second battery that is hookup up to the starting battery, I suppose for charging purposes. And my factory wiring cable from Lance runs exactly long enough to go to the auxiliary better. So, can I assume the fuses or breakers in the camper will handle any overload, or should I craw back under and put a devoted breaker on that line? 74307

Reply from Chris R.

I don't think you'd need to add any separate fuses here. The factory wiring on both the Ford truck and Lance camper should already be protected. 60449

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