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Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Wire Hybrid Cord

Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Wire Hybrid Cord

Item # RM-152-1676-7
Our Price: $193.82
Tow Bar Wiring

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RM-152-1676-7 - Diode Kit Roadmaster Splices into Vehicle Wiring
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Perfect for tow bars with built-in channels, this complete kit includes everything you need to connect your RV's tail, brake, and turn signal lights to your towed car. Diodes prevent feedback and wire your car to operate as a combined system. Great Prices for the best tow bar wiring from Roadmaster. Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Wire Hybrid Cord part number RM-152-1676-7 can be ordered online at etrailer.com or call 1-800-496-5010 for expert service.
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Roadmaster Tow Bar Wiring - RM-152-1676-7

  • Diode Kit
  • Splices into Vehicle Wiring
  • Universal
  • Roadmaster
  • 30 Foot Long Harness

Perfect for tow bars with built-in channels, this complete kit includes everything you need to connect your RV's tail, brake, and turn signal lights to your towed car. Diodes prevent feedback and wire your car to operate as a combined system.


Features:

  • Complete wiring kit lets you connect your RV's tail, brake, and turn signal lights to your towed vehicle's lighting system
    • Wires towed car as a combined lighting system so that brake and turn signals travel along same wire
  • Diodes prevent electrical feedback and the damage it can cause to your car's electrical components
  • 7-Wire to 6-wire adapter cord allows you to run power from your RV to your towed vehicle
    • Hybrid cord is ideal for all-terrain tow bars and other tow bars that have channel guides
    • 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
  • 6-Way socket wires to harness and mounts on towed car with included bracket
  • Sturdy, durable construction
    • Powder coated aluminum casings protect diodes from corrosion
    • Electrical cord resists water, oil and chemicals
    • Silicone-injected plugs prevent corrosion
  • Kit includes:
    • 4 Hy-Power diodes
    • Wiring harness
    • 7-Way to 6-way adapter cord
    • 6-Way socket with mounting bracket
    • Wire connectors
    • Cable ties
    • 1 Ring terminal
    • 3' Long plastic loom
  • Brake light relay (RM-88400 - sold separately) may be required if used with supplemental braking system
  • Limited Lifetime Warranty


Specs:

  • Maximum amperage: 85 amps
  • Maximum voltage: 24 volts
  • Adapter cord length: 8'
    • Wire gauge: 16
  • Wiring harness length: 30'


Note: For applications that have separate lighting, this kit will cause your brake lights to function as both brake and turn signal lights. A wiring converter (118158 - sold separately) and 2 additional diodes will be needed if you want to retain separate turn and brake signals.


Separate vs. Combined Lighting Systems

Some automobiles operate on a 3-wire system, wherein the brake signal and the turn signals travel along different wires to illuminate different lights. (Typically, these vehicles have amber turn signals.) This is referred to as a "separate lighting system". When you hook up for flat towing using this kit, your towed car's lighting system will operate in a combined fashion regardless of whether it typically has combined or separate lighting. This means that the brake and turn signals sent by your RV to your towed car will be carried on a single wire. As a result, your car's brake lights will do the flashing for the turn signals. Your vehicle will still function as designed when not hooked up to your RV.


Diode Wiring Diagram

Diode Wiring Diagram

Diode Wiring Diagram

Diode Wiring Diagram

Do You Need a Brake Light Relay?

Because this kit wires your vehicle as a combined system, a brake light relay (RM-88400 - sold separately) may be required if you use a supplemental braking system with your towing setup. A supplemental braking system depresses the brake pedal in your towed car every time you apply the brakes in your RV. So, if your towed car's brake lights illuminate when the brake pedal is pressed and the engine is off - as is the case when towing - then you need to install a relay to ensure that the lights on your towed car always act in accordance with the signals sent by your RV via the wiring harness. Without a relay, the brake signal from your towed car will override the turn signal sent by your RV when you slow down to make turns, creating a potential hazard.



152 Roadmaster Universal Hy-Power Diode Wiring Kit

1676-7 Roadmaster Coiled-to-Straight 7- to 6-Wire 8' Power Cord

910030-5 Electrical Socket Bent Bracket - Roadmaster

910030-7 RoadMaster 6-Wire Trailer Connector - Vehicle End



This Product Fits The Following Vehicles




Customer Satisfaction Score:


Customer Reviews

Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Wire Hybrid Cord - RM-152-1676-7

Average Customer Rating:  4.8 out of 5 stars   (74 Customer Reviews)

Perfect for tow bars with built-in channels, this complete kit includes everything you need to connect your RV's tail, brake, and turn signal lights to your towed car. Diodes prevent feedback and wire your car to operate as a combined system.

by:

The plug in to auto did not work, had to get another. Being that it is enclosed within unit wrapping, I JUST HAD TO TIE IT UP FOR TRAVEL. so ITS functionality, side lights did not work also. Finally it is quite heavy. Overall stay away from this unit.


Comments
Thank you for reaching out! This item has a limited lifetime warranty and I have sent that information along to you.
-- Etrailer Expert Brooke M - 05/03/2022


by:

Install was straightforward. I installed on a 370z. I have three issues though:1.the wire end connects are not heat shrink (using a heat gun) so I added heat shrink tubing. 2: the wire is too short. I snaked the wire through the interior and it ended up being about 6 inches too short so I had to splice additional wire (which hacks me off), and 3. The wire loom is too short. Not enough to fit between the taillights. No issues with etrailer but seems that Roadmaster could have spared just a bit more expense for a better install.




by: 04/08/2021

So far so good. Self installed on 2018 Ford F150. RV side was a breeze. Written instructions are weak. The truck side included economy wiring kit which required cutting tailight and brakelight wires in order to tap diods into lines. If doing it again, I would order the Hopkins custom wiring kit HM56009. It doesn't require cutting wires. It plugs into factory connections.




by:

Worth the time to install,very easy to disconnect and reconnect




by:

Excellent instructions online. Rapid shipping and delivery.




by:

As always great service and great turn around time on receiving the order.




by:

worked out fine. But I was sent 3 harnesses and had to remove the one from the tow bar.




by:

We are very happy with this product.




by:
Jeep

Worked well just like video, snaked wire thru divers side frame to behind wheel well and run to front of jeep, was a little time consuming not having a lift.




by:

Fast delivery and exactly as advertised.




by:
2022 Chevrolet Colorado

Great product, with etrailer on line video on [online] the installation was a breeze.




by:
1995 Jeep Wrangler

Much simpler to install than I thought. Works well, and the price is fair for what you get.




by:

Ordering was easy and shipping updates were helpful




by:
2015 Fiat 500

Nice product! Very quick shipping. Than ks.




by:

Just what we needed




by:

Easy to install. Took about two hours. Works great




by:

Wow!!! So very impressed with this company!!’ Haley helped me by phone make sure everything I ordered was right for my RV and Smartcar (tow bar, base plate, battery shutoff and wiring). It came quick and the quality of the products (Blue Ox) are outstanding. Highly recommend this company!! Thank you for helping me!!




by:

Looking forward to install everything




by:

Jamie was super helpful finding me a solution to a back order product. I know ggere are supply issues nationwide. She made it happen . Thsnk you




by:

Very knowledgeable, polite and helpful customer service. Excellent shipping. Very happy customer.




by:

Again Jesse did a great job




by:

Need to installed , seams like this is what I need..




by:

It is working very well. I would recommend it.




by:

worked as stated




by:

Product arrived quickly and was well packaged.
Will
install soon.



25
74
Show More Reviews

See what our Experts say about this Roadmaster Tow Bar Wiring

  • How Does 6-Way Tow Bar Wiring Socket Attach to Vehicle Typically
    We don't recommend attaching wiring sockets to base plate kits directly since that would normally require drilling into it and would void the warranty. The part # RM-152-1676-7 comes with a bracket that we would recommend you attach to the bottom of the bumper of your vehicle. I believe you have a Jeep Wrangler so I attached an install video for this kit on a similar 2018 Jeep Wrangler Unlimited.
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  • Recommended Flat Tow Wiring For 2021 Ford Bronco
    For wiring to flat tow your 2021 Ford Bronco behind your motorhome, the best option is definitely a diode wiring kit from Roadmaster: - Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Wire Hybrid Cord # RM-152-1676-7 The # RM-152-1676-7 is a diode kit which is the best way to wire a flat towed vehicle because it prevents any type of feedback, which keeps your Bronco's electrical system safe and sound. This kit includes the wiring as well as the 7-way to 6-way adapter...
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  • Difference Between Roadmaster 4-Diode Universal Wiring Kits with Straight and Hybrid Cords
    That's literally the only difference between the two wiring kits. The Roadmaster 4-Diode Universal Wiring Kit # RM-152-98146-7 comes with a straight cord while the Roadmaster 4-Diode Universal Wiring Kit # RM-152-1676-7 comes with a "hybrid" cord that is straight on one end and coiled on the other. I prefer the coiled option as it helps to keep the wiring above the ground easier. The only time a straight cord is better is if the tow bar has channels to route the wiring through. For a...
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  • Tow Bar Wiring for 1997 Honda CR-V
    To flat tow your 1997 Honda CR-V the wiring kit you'd want the Roadmaster Diode kit part # RM-152-1676-7 which wires into CR-V and allows you to control the taillights. It comes with the wiring that runs across the tow bar to attach to the motorhome connector as well. The kit you referenced is for attaching to a trailer.
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  • Flat Towing Wiring Kit for a 1997 Jeep Wrangler TJ
    To power the lights on your 1997 Jeep Wrangler TJ while flat towing I recommend the Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Wire Hybrid Cord item # RM-152-1676-7. This complete kit includes everything you need to connect your RV's tail, brake, and turn signal lights to your Jeep. The diodes prevent feedback and wire your Jeep and RV to operate as a combined system. I have linked our options of base plate kits for your 1997 Jeep Wrangler.
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  • Tow Bar Wiring For 2021 Lincoln Nautilus to Flat Tow
    We do indeed have a solution for the tow bar wiring for flat towing your 2021 Lincoln Nautilus. What you will need is a diode wiring kit from Roadmaster: - Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Wire Hybrid Cord # RM-152-1676-7 This will give you the wiring, as well as the adapter cord which will allow you to plug into your motorhome's connector to activate the lighting functions on your Nautilus. According to Roadmaster, you will also need additional...
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  • Recommended Diode Wiring Kit For Flat Towing A 2004 Honda Civic Hybrid
    The Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles # RM-152-1676-7 you were looking at is a compatible fit for your 2004 Honda Civic Hybrid. This diode kit will transfer your motorhome's turn and brake signals through your Civic's tail lights. If you hook up your vehicle to the motorhome and test the lighting and find that the brake signal overrides your turn signal then you'll also need the Roadmaster Brake-Lite Relay Kit for Towed Vehicles # RM-88400. This relay will splice...
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  • BlueOx Compatible Base Plate for a 2021 Jeep Wrangler Unlimited
    Yes, I do have a base plate that will work with your 2021 Jeep Wrangler Unlimited and it is compatible with not only your BlueOx tow bar but with your factory steel bumper. It is the Demco Tabless Base Plate Kit item # DM9519339. This base plate has removable arms. It also has a tabless design that creates a seamless clean look. This means it has no visual crossbar or protruding brackets. It will keep your Jeep looking stock. For your wiring harness I recommend the Roadmaster 4-Diode Universal...
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  • 2022 Jeep Wrangler Wiring and Brake System For Flat Towing
    For your application I recommend installing the Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Wire Hybrid Cord # RM-152-1676-7 on your 2022 Jeep Wrangler because of the excellent diodes that help to protect your vehicle wiring. Then for a braking system I recommend the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 because it installs permanently and is easy to setup after the initial installation. You also need the Stop Light Switch Kit # RM-751490 so the brake lights...
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  • Recommended Safety Cables and Tow Bar Wiring for a Roadmaster Falcon Tow Bar and 2021 Kia Soul
    For the Roadmaster Falcon All Terrain, Non-Binding Tow Bar # RM-522 I would recommend a straight cable like the RoadMaster 64" Double Hook, Straight Safety Cables # RM-646 which will feed through the cable guides to protect wires and safety cables. For the wiring harness for the tow bar and your 2021 Kia Soul, I recommend the Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles # RM-152-1676-7 which will also feed through the cable guides.
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  • Diode Tow Bar Wiring Kit Recommendation for 2020 Ram 1500
    While you do have a separate taillight setup since your turn signals are on a different circuit from your stoplights you can still wire up your 2020 Ram 1500 for tow bar wiring like a combined circuit and it will work just fine and be totally legal. The red bulbs of your stoplights would just blink with the turn signals like a combined vehicle. The # RM-152-1676-7 that you referenced comes with everything you'd need so it would be the best overall setup and would work great too with the...
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  • Recommended Demco Base Plate for 2022 Jeep Wrangler Unlimited to Use Demco Commander Tow Bar
    Congrats on the new Jeep. To flat tow that 2022 Jeep Wrangler Unlimited with your Demco Commander tow bar, I recommend the Demco Tabless Base Plate Kit, # DM9519336 and use the Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles, # RM-152-1676-7. I've linked a product review and install video of this on 2022 Jeep Wrangler Unlimited and one for the base plates on a 2020 model, please see below.
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  • Can Demco SBS Air Force One Supplemental Braking System Be Installed On 2020/2021 Chevrolet Blazer?
    The Demco SBS Air Force One Supplemental Braking System for Motor Homes with Air Brakes # SM99243 on your RV is confirmed to work with the 2020 and 2021 Chevrolet Blazer, and if you do decide to buy one you will simply need the Demco SBS Reinstall Kit for Air Force One Supplemental Braking System # SM99226. You will need to transfer the air cylinder, air cylinder brackets, and operating unit will need to be transferred from your current vehicle to the Blazer. To complete the flat tow...
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  • Parts Needed to Install Tow Bar Wiring on Vehicle Towed on Tow Dolly
    You'd need the tow bar diode wiring kit part # RM-152-1676-7 installed on your 2018 Honda Pilot Touring and then an additional 7-way socket wired into your motorhome wiring like with the # PK11998 and the socket # PK11893 and you'd be set. You'd need to use the harness to tap into the correct circuits of your 7-way wiring to do this.
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  • Troubleshooting Hopkins Custom Tail Light Wiring Kit Not Working on a 2015 Jeep Wrangler Unlimited
    You can test the wiring of the Hopkins Custom Tail Light Wiring Kit for Towed Vehicles # HM56200 itself. I have included a diagram to help determine where to test. You will want to test the wiring with a circuit tester like the # PTW2993 at the area marked "IN", if you have power there, test the power at the area marked "OUT". If you lose power, then that converter is not working properly. Unfortunately this happens on this type of wiring. If you find that is the problem, you would be...
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    Image 1 for
  • Complete Flat Tow Parts List For A 2006 Jeep Wrangler
    Sure Thing! To complete the flat towing setup for your 2006 Jeep Wrangler X you're also going to need: -A base plate, Roadmaster Direct-Connect Base Plate Kit # RM-521424-5, -A braking system, Roadmaster InvisiBrake Supplemental Braking System # RM-8700, -A brake relay kit, Roadmaster Brake-Lite Relay Kit for Towed Vehicles # RM-88400, & -A wiring kit, Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles # RM-152-1676-7.
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  • Outlet Kit and Tow Bar Lighting for 2018 Ford C-Max
    If you were looking for an outlet kit to use with the Brake Buddy Select part # HM39524 you could use the # RM-9332 or if you were looking for a lighting kit the Roadmaster diode kit part # RM-152-1676-7 comes with everything needed to control your C-Max's taillights.
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  • Flat Towing A 2021 Chevrolet Silverado 1500 4x4
    Digital odometers only work when the vehicle is on and power is running to the odometer. Since you'll have to remove the negative battery cable to flat tow your 2021 Chevy Silverado there will be no power running to the odometer for it to account for any miles traveled. If you're needing the equipment to flat tow your 2021 Chevy Silverado 1500 4x4 I have the following recommendations for you: Base Plates: # RM-523199-5. These base plates are a confirmed fit and will has brackets that...
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  • Recommended Tow Bar Base Plate Kit For 2021 GMC Canyon AT4
    I reached out to my contact at Roadmaster and she confirmed that the Roadmaster Direct-Connect Base Plate Kit # RM37VR you were looking at will work on just fine your 2021 GMC Canyon AT4. The Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar w/ LED Lights # RM-676 you mentioned will work perfectly with the Roadmaster # RM37VR, and the safety cables that your Nighthawk came with will also still work. To complete your flat-tow setup you will need wiring, and a supplemental system. For...
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  • What Tow Bar Works with the Roadmaster StowMaster Tow Bar for My 2021 Jeep Wrangler Unlimited?
    If you are looking for a great compatible base plate that works with the Roadmaster Stowmaster # RM-501 on your 2021 Jeep Wrangler Unlimited (with factory steel bumper), I recommend the Roadmaster Crossbar-Style Base Plate Kit # RM-521453-4. The Roamaster base plate comes with a hidden-bracket design that comes with a better aesthetic than tow bars that have standard brackets. In order to ensure safety with this system, I recommend the RoadMaster 68" Single Hook, Coiled Safety Cables #...
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  • What Parts do You Recommend for Flat-Towing My 2021 Kia Soul with an Automatic Transmission?
    In order to flat-tow your your 2021 Kia Soul with an automatic transmission, you will need base plates, a tow bar, a tow braking system, and vehicle tow wiring. Here's a setup of the following parts you need: - Roadmaster Crossbar-Style Base Plate Kit - Removable Arms # RM72VR - Roadmaster Tracker Tow Bar - 2" Ball # RM-020 - RoadMaster 68" Single Hook, Coiled Safety Cables # RM-643 - Demco SBS Stay-IN-Play DUO Supplemental Braking System - Proportional # SM99251 - Roadmaster 4-Diode...
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  • What Setup do I Need to Prep My 2016 Smart fortwo for Flat-Towing?
    While we do not sell 2016 Smart fortwo vehicles that are prepped to flat-tow, we do offer the parts you need for flat-towing an existing 2016 Smart fortwo you own. If you are planning to flat-tow a 2016 Smart fortwo with an automatic transmission on a class B motorhome, it is important to note that the owner's manual for the vehicle does not recommend flat-towing for more than 50km, so it is not recommended. However, to tow the Smart fortwo, you will need the following parts: - Roadmaster...
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  • Does etrailer Offer Installation Of Base Plates For A 2021 Ford Escape
    Yes, we have an installation team at our Wentzville, Missouri location. If you call our customer service department at 800-298-1624 they can assist you in setting up an installation appointment. If you haven't purchased all the equipment needed to flat tow your 2021 Ford Escape then I have the following recommendations: Tow Bar: Roadmaster Falcon All Terrain, Non-Binding Tow Bar # RM-522. This tow bar features non-binding latches and a large hookup radius to make connecting/disconnecting...
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  • What Gear do I Need to Be in to Flat Tow My 2021 Chevy Silverado 1500?
    I did some research on your 2021 Chevy Silverado 1500, and I discovered that only 4-wheel drive models can be safely flat-towed with all four wheels on the ground. If you have a 2-wheel drive model, you will not be able to flat-tow. As far as the gear you need to tow, you will need to shift the automatic transmission to PARK and a manual transmission to FIRST GEAR. Turn the engine off, but leave the ignition on and set the parking brake. You will then need to shift your transfer case to...
    view full answer...


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