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7-Wire to 6-Wire Coiled-to-Straight Cord for Roadmaster Tow Bars - 8' Long
Roadmaster

7-Wire to 6-Wire Coiled-to-Straight Cord for Roadmaster Tow Bars - 8' Long

Part Number: RM-1676-7
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$116.76
Retail:$161.48
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Replaces the power cord from your Roadmaster tow bar so that you can run power from your RV to your towed vehicle. Coiled end prevents dragging and straight end is ideal for tow bar channel guides. 1-800-940-8924 to order Roadmaster accessories and parts part number RM-1676-7 or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for 7-Wire to 6-Wire Coiled-to-Straight Cord for Roadmaster Tow Bars - 8' Long. Accessories and Parts reviews from real customers.
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  • Reviews (31)
  • Q & A (0)
  • Videos (3)
  • Photos

Roadmaster Accessories and Parts - RM-1676-7

  • Flat Tow Wiring Harness
  • Adapters
  • Extensions
  • 7 Round - Blade to 6 Round
  • Roadmaster
  • Coiled Cord

Replaces the power cord from your Roadmaster tow bar so that you can run power from your RV to your towed vehicle. Coiled end prevents dragging and straight end is ideal for tow bar channel guides.


Features:

  • Adapter cord allows you to easily run power from your RV to your towed vehicle or trailer
  • Coiled-to-straight cord easily expands and contracts for a cleaner look with extra length
    • Coiled end connects to RV and prevents cord from dragging and tangling
    • Straight end connects to towed vehicle and is ideal for tow bars with channel guides
  • Silicone-injected plugs prevent corrosion
  • Electrical cord is resistant to water, oil, and chemicals
  • Cord has 7-way trailer connector installed
    • 6-Way trailer connector (included) is uninstalled so you can match the wiring on your towed vehicle or trailer
  • Made in the USA


Specs:

  • Extended length: 8'
  • Wire gauge: 16


1676-7 Road Master 7-Way RV to 6-Way Round Coiled-to-Straight Curly Power Cord - 8' Long

Installation Details RM-1676-7 Installation instructions



Video of 7-Wire to 6-Wire Coiled-to-Straight Cord for Roadmaster Tow Bars - 8' Long

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Set up: 7-Wire to 6-Wire Coiled-to-Straight Cord for Roadmaster Tow Bars on a 2018 Jeep Cherokee

-Today, in our 2018 Jeep Cherokee, we're gonna take a look at the Roadmaster 7-wire to 6-wire coiled to straight cord for Roadmaster tow bars.Whenever you're flat-towing your vehicle, you need to have the lights transfer from your motorhome to your towed vehicle. Now, we need to get a way to transfer all those signals. Possibly a power source going to charge our battery.Well, that's where our Roadmaster cable's gonna take care all of those problems for us. Now, this is gonna be specifically made for a replacement for Roadmaster tow bars. However, it is gonna work with any tow bar and any towed vehicle.It's gonna be a hybrid style cable, which means we're gonna have a coiled sections that's gonna be close to the motorhome and then it'll turn into a a straight cable that'll go all the way until we plug it into our towed vehicle. The straight end of the cable's gonna be great for tow bars that have that channel guide in them so we can keep everything looking nice and keep all that extra slack from dragging on the ground.Now, our cable's gonna have a silicone injected 7-way on the motorhome side, that way we can prevent any kind of corrosion from building up inside that plug.Now, on the other end, on the towed vehicle side, we're gonna have a 6-way connector.

Now this connector is not gonna be on there when it comes in the package. It is just gonna have the connector and a blunt cut wires on the end. That way we can match up our towed vehicle wiring to our motorhome and make sure everything is right.Now, since some of the cable is gonna be exposed to the elements, they put this vinyl coating on there, which is gonna be resistant to water, oil, and most chemicals that we find on the road. It is gonna last us a long time.Now even if you have some extensions, like we have this high-low adapter, which is gonna push everything back farther away from the motorhome, we're still gonna have plenty of cable to get everything hooked up because when it's extended all the way out it's gonna be a full eight feel long.If you're looking for a replacement cable for your Roadmaster tow bar, or if you're setting up a new flat tow, this is gonna be a great choice.Now, keep in mind that it's only gonna be one component you need for a complete, safe, flat tow set up. For a complete set up, you're gonna need a base plate, a tow bar, tow bar wiring, a braking system, and finally, safety cables.To begin our installation we're gonna grab our cord and whatever tow bar we're gonna be using it with.

In our case, we're gonna be using this Roadmaster All Terrain tow bar, which has these channels in the side here.We'll start by taking the straight end, that has our blunt cut wires coming through, and before we attach the connector to it, I'm gonna pass it through the channel here. Going towards the vehicle side of the tow bar. We'll pass it through till we have plenty of wire to work with outside on the end here.We can grab the vehicle socket end now. At the very end we're gonna have this super small Philips head screw. We're gonna want to pull that out and you want to be careful 'cause these are extremely easy to lose so we'll hold onto that.

Then if we come onto the other end, we'll have a larger Philips head screw. If we look into the end of it, you'll see it's almost like a little gate. You're gonna loosen that up, we don't need to take the screw out, we just want to loosen it up so that gate won't be in the way. Then see, if we loosen it up, we can move the gate out of the way. We can take our screwdriver, I'm gonna reach in and just push the plug out, just like that.Take the blunt cut wires, we'll them through.

We're just gonna make sure we have enough room to work with on the other end. If you look extremely close, each one of the pins are gonna be labeled. It's gonna have a small set screw and we can just loosen up the set screw, we can insert our wire to the corresponding connection, and we'll just tighten it up.Now I do want to mention, there is two industry standards as far as the power wire for a 6-way. The center pin is gonna be our auxiliary 12-volt power source. That's the way the 7-way, on the other end, is hooked up and most likely that's how your charge line is hooked up on the vehicle side. We're gonna go through and put all of our wires in place. Then we'll show you what it looks like.Once you have all your connections made, and your sure that all the wires are nice and secure, all the set screws are tight, we'll take the silver piece. We'll line everything back up. We'll slide it back into position. When you put it back on you just want to make sure that set screw lines up with the hole again. Once we have it lined up, take our small screw, and we can replace it. Then on the back here, where that gate is, we're gonna go ahead and tighten up that Philips screw, just so that gate comes down. That'll prevent the wire from being pulled on the inside and disconnecting those terminals. You don't need to really tighten it too hard, you just want that gate to make contact and prevent it from slipping inside of their.At this point, if you're putting safety cables in your guides, go ahead and do that now or we can move outside and hook up our Jeep to our motorhome.That'll finish up your look at the 7-wire to 6-wire coiled to straight cord for Roadmaster tow bars on our 2018 Jeep Cherokee-.

Customer Satisfaction Score:


Customer Reviews

7-Wire to 6-Wire Coiled-to-Straight Cord for Roadmaster Tow Bars - 8' Long - RM-1676-7

Average Customer Rating:  4.7 out of 5 stars   (31 Customer Reviews)

Replaces the power cord from your Roadmaster tow bar so that you can run power from your RV to your towed vehicle. Coiled end prevents dragging and straight end is ideal for tow bar channel guides.

by:

Substitute for unavailable Item # RM-146-7. This product has NO 6-wire to 7-wire connector between vehicles and NO metal connector to the tow bar. Included wiring diagram shows connections to additional purchase 6-wire towed vehicle socket. Good length. Metal connector to tow bar will need to be purchased or made from scrap metal.

Etrailer Expert

Jenny N.

4/13/2022

The six way connector that is included is separate so that you can match the wiring on your towed vehicle or trailer. It spends on the two bar, as some tow bars have a channel guard that the cord can fit through.



by:

Order received on time and at a reasonable price.



by:

So 3 stars! Why? The small phillips head screw that needs to be removed in order to expose the socket that needs to be wired was in so tight that I stripped it trying to remove it. That had to be s a fluke. I complained to etrailer and they sent me a replacement 6-Pole, Round Pin connector. I wholeheartedly give etrailer 5 stars for customer service. They are awesome!



by:

Very difficult to wire and without soldering does not stay attached. I would suggest that you get one that is already wired for what you need on both ends.

Etrailer Expert

Jenny N.

3/20/2023

That is a bummer that it was difficult to install. We do have options for a pre wired 7 to 6 round connector like part # DM9523054. It will extend 7 feet however is coiled so it will not drag on the ground.



by:

Just what I needed,made of good quality material, very easy to install the 6 way plug even for a dummy like me, works great,it also arrived earlier than they said very satisfied



by:

Easy to wire the six pin with instructions & diagram included. Fits great and coiled portion will allow for extra length & flexibility.



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Fast shipment.



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Great customer service and prompt deliv ery



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Very professional, knowledgeable and willing thep guide in the correct items to purchase



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Very well made. I would recommend this cord



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Works great easy to wire.



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Not used.



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It was exactly what I wanted very fast. Already installed on the tow bar.



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Excellent service



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See what our Experts say about this Roadmaster Accessories and Parts

  • How Does the Charge Line from a Motorhome to Towed Vehicle Work Together
    The Roadmaster Battery Charge Line Kit for Motorhomes # RM-156-75 uses a 12 gauge wire and circuit breaker to route to the positive battery post in your motorhome and the number 4 pin in the included 7-way photo. The Roadmaster Battery Charge Line Kit for Towed Vehicles # RM-156-25 uses a 14 gauge wire and circuit breaker to route to the positive battery post in your towed vehicle and the number 2 pin in the included 6-way photo. You would then need a 7-Wire to 6-Wire Cord like the #...
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  • 2018 Jeep Wrangler Base Plate Kit Needed to Match with Roadmaster Nighthawk All-Terrain Tow Bar
    Thanks for reaching out, Todd! To tow your 2018 Jeep Wrangler with your 8K Roadmaster Nighthawk All-Terrain Tow Bar w/ LED Lights # RM-676 you'll need the Direct-Connect Base Plate Kit # RM-521453-5 which fits as long as you have the factory bumper. If your Jeep bumper has been swapped out for something else I'll need to know to see if a different kit is needed. Then to replace the wiring on the tow bar you need the Coiled-to-Straight Cord for Roadmaster Tow Bars # RM-1676-7. For a complete...
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  • Length of Replacement 7-Wire to 6-Wire Coiled-to-Straight Cord
    The Replacement 7-Wire to 6-Wire Coiled-to-Straight Cord for Roadmaster Nighthawk Tow Bar # RM-1676-7 measures a total of 8' long. When extra length is needed and it uncoils it won't cut the wiring. The electrical cord is designed to protect the wiring and isn't going to uncoil and somehow damage it.
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  • Replacement Coiled 7-Way Cable for Roadmaster Nighthawk Tow Bar
    The correct replacement coiled lighting wire for the Roadmaster Nighthawk part # RM-676 is the part # RM-1676-7.
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  • What Kind of Port is Inside the 2018 Winnebago Fuse 23A and Can it Be Used for Flat Towing?
    You're welcome and thanks again for the pictures! The connector inside your RV is called an OBD2 port and it's used for inspections and other diagnostics. It does not work with anything towing related or a brake system like the Roadmaster InvisiBrake Supplemental Braking System item # RM-8700. What's on the rear of your Winnebago is a 7-Way connector which is exactly what you'll need to connect to the 6-way connector on your 2022 Subaru Crosstrek using a cable like item # RM-1676-7.
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  • Parts Needed For Flat Towing a 2017 Jeep Wrangler With Roadmaster BlackHawk Tow Bars
    First you will need the Roadmaster Direct-Connect Base Plate Kit # RM-521448-5 that fits your 2017 Jeep Wrangler with the factory bumper. If you have a aftermarket bumper or special edition Jeep please let me know so I can confirm that the you do not need a different base plate. This base plate will direct connect to your Roadmaster BlackHawk 2 All Terrain, Non-Binding Tow Bar # RM-422. The Roadmaster Universal Hy-Power Diode Wiring Kit # RM-152 and 6-Way Connector # PK12720 will allow...
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  • Troubleshooting 7-Way to 6-Pole Wiring Adapter Operation
    It sounds like you are using a 7-to-6-way coiled adapter cable like # RM-1676-7 between your Class C Jayco Melbourne's 7-way and the 6-pole on your towed vehicle. Some trailer wiring testers that use LEDs may not always work correctly. If you have a probe tester like # PTW2992 I suggest you re-test the 7-way contacts one at a time. You can refer to the linked photo to see which pin to test for each function. The photo shows the usual RV circuit configuration but there are multiple ways...
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    The 8-foot long 7-Wire to 6-Wire Coiled-to-Straight Cord for Roadmaster Tow Bars # RM-1676-7 is partly coiled and partly straight, so it just depends on how much length there is from the receiver to where your tow bar mounts. You can measure it and see but it should be just fine. I have added links to a couple video reviews for you to check out as well of the 7-Wire to 6-Wire Coiled-to-Straight Cord for Roadmaster Tow Bars # RM-1676-7.
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  • Using Hopkins Tow Bar Wiring on 2011 Jeep Wrangler That Needs Charge Wire From RV
    You can use the Hopkins tow bar light kit part # HM56200 on your 2011 Jeep Wrangler as it's a confirmed fit, but the 4-way ends of this and the # A10-6034VP don't match as they are both male 4-ways. So what you could do is cut off the 4-way of either side and install the # HM48190 in place of it and you'd be able to make the connectors as needed. For a coiled extension to adapt the 7-way or your RV to the 6-way of the adapter you'd then want the # RM-1676-7 which will carry the charge...
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  • What Size Wires Come with the Umbilical on the Roadmaster Nighthawk All-Terrain Tow Bar
    The Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar part # RM-676 comes with the 7-Wire to 6-Wire Coiled-to-Straight Cord for Roadmaster Tow Bars part # RM-1676-7 which uses both 14 and 16 gauge wires. The black (power) and white (ground) wires are 14 gauge and the rest are 16 gauge.
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  • How Do I Stop The battery From Draining When Flat Towing A 2022 Chevy Equinox
    Hello Brad, thanks for reaching out. I do have a solution for you, but I am not aware of any way to reduce the amperage draw when flat towing your 2022 Chevy Equinox. That said, it is common for the vehicle battery to drain while flat towing. What you can do is add a charge line kit, part # RM-156-25. This allows the vehicle battery to receive a charge from the motorhome/alternator while you are towing. Our records show this as a requirement for towing a 2022 Equinox so this will definitely...
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  • Tow Bar Wiring/Lighting Kit for 2001 Dodge Dakota with Charge Line for Battery
    The tow bar lighting solution you would want for your 2001 Dodge Dakota would be the Roadmaster diode kit part # RM-152-98146-7 which will give you the lighting functions for the truck as well as carries an extra circuit you can use for charging the Dakota battery. Then to complete the charge line to your Dakota battery you'd want the part # RM-156-25 as well and you'd be set.
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Do you have a question about this Accessories and Part?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Joshua S
Video Edited:
Joshua S
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee Jonathan Y
Video by:
Jonathan Y
Employee Robert C
Test Fit:
Robert C
Employee Clayton O
Test Fit:
Clayton O
Employee Kristina F
Written by:
Kristina F

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