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BrakeBuddy Towed Vehicle Battery Charge Line Kit

Our Price: $56.71
In Stock
Maintains the battery charge on your towed vehicle while it is being flat towed.Features: Keeps your car's battery charged while it is being flat towed Pulls up to 15 amps from your motorhome's battery Shows LED light when charging
  • Flat Tow Brake System
  • Wiring
  • Battery Charge Line Kit
  • Brake Buddy

60-Amp Relay Kit for Redarc In-Vehicle BCDC Battery Charger

Retail: $138.00
Our Price: $125.00
In Stock
Relay kit allows your Redarc BCDC dual-input battery charger to recognize a smart alternator without a direct connection to the ignition source. Fully sealed for durability. Includes everything ...
Features: Relay kit allows your Redarc BCDC dual-input battery charger (331-BCDC1225D or 331-BCDC1240D) to recognize a smart alternator without a direct connection to the ignition source Great for
  • Trailer Brake Controller
  • Relays
  • Redarc

Roadmaster Battery Charge Line Kit for Towed Vehicles

Retail: $54.75
Our Price: $43.82
In Stock
Kit allows up to 15 amps from your RV's battery to be used to maintain the charge of your towed car's battery while the car is being towed. Charge line connects to the 6-way or 7-way plug on ...
Features: Maintains the battery charge in your towed vehicle while the car is being towed Provides just 15 amps to avoid overcharging Connects battery to 6-way or 7-way plug at the front of your
  • Flat Tow Wiring Harness
  • Battery Charge Line Kit
  • Roadmaster

Towed Vehicle Battery Charge Line Kit for Demco Air Force One and Stay-IN-Play Duo Braking Systems

Retail: $32.37
Our Price: $26.79
In Stock
Maintains the battery charge on your towed car while it is being flat towed. Works with Demco supplemental braking systems. Includes diode and fuse.Features: Keeps your car's battery charged while it is being flat towed Works with Demco Air Force One and Stay-IN-Play Duo braking systems Includes 10-amp in-line diode and fuse Made in the USA
  • Flat Tow Brake System
  • Wiring
  • Battery Charge Line Kit
  • Demco

Blue Ox Towed Vehicle Battery Charge Line Wiring Harness

Retail: $129.00
Our Price: $103.35
In Stock
Maintain the charge of your towed car's battery from your coach or tow vehicle with this simple harness. 12V Power line with in-line charger connects to the 6-way or 7-way plug on your vehicle ...
Features: Maintains the battery charge in your towed vehicle while the car is being towed Provides just 15 amps to avoid overcharging Will prevent charging if power drops below 13.3 amps Connects
  • Flat Tow Wiring Harness
  • Battery Charge Line Kit
  • Blue Ox

Roadmaster Brake-Lite Relay Kit for Towed Vehicles

Retail: $54.09
Our Price: $47.50
In Stock
Relay works with your tow bar wiring system to ensure that your towed vehicle's turn signal lights flash in tandem with your RV's lights. components for standard installation May require additional connectors and length of wire for certain applications Limited Lifetime Warranty The purpose of a brake light relay kit is to prevent your towed
  • Brake Light Relay
  • Roadmaster

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New Arrivals — From Our Shop to You!

Chosen by folks who live and breathe this, just like you.

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Andrew etrailer team member
Andrew etrailer team member

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5th Wheel/Gooseneck 90-Degree Wiring Harness w/ 7-Pole Plug - GM, Ford, Ram, Toyota - 9' Long - 50-97-410

Retail: $167.25
Our Price: $114.19
In Stock
T-Connector works with fifth-wheel and gooseneck trailers and retains use of your vehicle's factory 7-way connector. It connects your factory 7-pole at the bumper to a new 7-pole in the truck bed ...
: right turn and stop lights Blue: electric brake Black: battery charge Red: left turn and stop lights White: ground wire Wire gauges: Black/white: 10 Blue: 12 Brown/red/green/yellow: 14 1-Year limited
  • 5th Wheel and Gooseneck Wiring
  • Vehicle End Connector
  • 7 Blade
  • Bargman
  • Plug-In

Hopkins Plug-In Simple Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Our Price: $83.47
In Stock
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into OEM tow package wiring harness - no cutting or splicing required. cargo area Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer Powered module pulls power directly from battery to avoid overloading vehicle's
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • 4 Flat
  • Hopkins
  • Plug-In
  • Visible
  • Powered Converter
  • Factory Tow Package

Roadmaster Battery Charge Line Kit for Motorhomes

Retail: $86.03
Our Price: $75.50
In Stock
This charge line connects to the battery in your RV to allow up to 15 amps to be transferred to your towed vehicle's battery during towing. Requires RM-156-25 be installed in towed car.Features: Allows power from your RV's battery to be used to maintain the charge of your towed vehicle's battery while the car is being towed Transfers just 15 amps to avoid overcharging the
  • Flat Tow Wiring Harness
  • Battery Charge Line Kit
  • Roadmaster

T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Retail: $130.38
Our Price: $94.15
Quickly and easily install a 4-way, RV-style trailer connector on your vehicle with this custom harness. T-One connector plugs into OEM tow package wiring harness - no cutting, splicing or tapping ...
Features: Provides a 4-way flat trailer connector at the back of your Honda Pilot to power your trailer's signal lights Designed for use with a factory tow package Compatible with 5-pole, 6-pole
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • 4 Flat
  • Tekonsha
  • Plug-In
  • Visible
  • Powered Converter
  • Factory Tow Package

T-One Vehicle Wiring Harness for Factory Tow Package - 7-Way Trailer Connector

Retail: $170.98
Our Price: $111.39
Quickly and easily install a 7-way, RV-style trailer connector on your vehicle with this custom harness. T-One connector plugs into OEM tow package wiring harness - no cutting, splicing or tapping ...
Features: Provides a 7-way, blade-style trailer connector at the back of your vehicle to power your trailer's signal lights Designed for use with a factory tow package Compatible with 4-pole
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • 7 Blade
  • Tekonsha
  • Plug-In
  • Visible
  • Powered Converter
  • Factory Tow Package

TowSmart ProClass Multi-Tow 7-Way and 4-Way Flat Trailer Connector - Vehicle End

Retail: $37.99
Our Price: $27.88
In Stock
You've got different trailers, each with its own plug. Instead of swapping harnesses or using sketchy adapters, you mount this dual-socket connector once. It gives you a 7-way and a 4-flat in one ...
: Type: 7-way RV-style blade and 4-way flat (vehicle end) Functionality: Supports: Lights, electric trailer brakes, battery charge line, and auxiliary power Hardwire install: Designed for direct wiring
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • 7 Blade
  • 4 Flat
  • TowSmart
  • Universal Fit

TowSmart ProClass 7-Blade Trailer Connector w/ Wire Tester - Trailer End

Retail: $36.99
Our Price: $27.99
In Stock
You're wiring up a trailer and need to know it's done right. This 7-way plug lights up to show which signals are live the second you connect. You crimp it, test it, and roll out knowing ...
) Functionality: Supports: taillights, brake lights, turn signals, electric brakes, reverse, battery charge, auxiliary power LEDs: Light up to indicate active signals Construction: Housing: Plastic with textured
  • Trailer Connectors
  • Trailer End Connector
  • 7 Blade
  • TowSmart

TowSmart ProClass 7-Pole Trailer Connector Socket - Vehicle End

Our Price: $14.28
In Stock
You're replacing a damaged socket or wiring from scratch. This 7-way gives you solid terminals, a spring-loaded lid, and a mount that stays put. You wire it up once and don't have to mess with it again. 7-Way for Reliable Trailer Hookups This ProClass 7-blade socket mounts at the vehicle end and provides a clean connection point for your trailer wiring. It supports lighting, brake signals, battery charge
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • 4 Flat
  • 7 Blade
  • TowSmart
  • Universal Fit

Curt Relay Kit for Nissan Armada or Titan Aftermarket Tow Package

Retail: $47.29
Our Price: $31.44
In Stock
This kit includes the 2 small blue relays and 1 large brown relay that are required to complete the circuits for your Nissan Armada or Titan's non-factory-installed tow package.Features: Complete circuits required for towing with a 7-pole trailer connector (sold separately) Large, brown relay activates 12-volt power circuit Small, blue relays activate turn signals Required
  • Trailer Wiring
  • Relays
  • CURT

TowSmart ProClass 7-Blade Trailer Connector w/ Jacketed Cable, Wire Tester - 72" Long

Retail: $59.99
Our Price: $52.39
In Stock
You're rewiring a trailer from scratch or cleaning up a mess of splices. This 7-way gives you a fresh cable, sealed jacket, and built-in test lights. You wire it once, plug it in, and know its ...
) Cable Lengths: Trailer lead: 72" long Functionality: Supports: taillights, brake lights, turn signals, electric brakes, reverse, battery charge, auxiliary power LEDs: light up to confirm active
  • Trailer Connectors
  • Trailer End Connector
  • 7 Blade
  • TowSmart

TowSmart 7-Pole, RV-Style Trailer Connector Socket - Vehicle End

Retail: $13.99
Our Price: $12.34
In Stock
You're wiring up a new 7-way and the old socket's cracked and rusted. No point salvaging it. You bolt this one in, match the wires, and you're good to go. Solid connection, weather-resistant housing, and it holds tight through every haul. RV-style blade (vehicle end) Functionality: Supports: trailer lights, electric trailer brakes, battery charge line, reverse lights, and auxiliary power Construction: Housing: weather-resistant plastic
  • Trailer Connectors
  • Trailer End Connector
  • 7 Blade
  • TowSmart

TowSmart 7-Way Connector w/ LED Illumination - Trailer End

Retail: $16.99
Our Price: $15.71
In Stock
You're hooking up at dusk and nothings working. Could be a ground, could be the truck. You plug in this connector, the LEDs light up, and you know it's good. No more chasing wiring gremlins in the dark. One look and you've got answers.) Functionality: Supports: turn signals, brake lights, reverse lights, electric trailer brakes, battery charge line, and auxiliary power LEDs: show active functions when connected Construction: Housing
  • Trailer Connectors
  • Trailer End Connector
  • 7 Blade
  • TowSmart

TowSmart ProClass Twist Mount 7-Way and 4-Way Flat Trailer Connector - Vehicle End

Retail: $31.99
Our Price: $25.00
In Stock
You're swapping out a factory socket and want a tight fit that won't rattle loose. This twist-mount connector snaps into your trucks factory knockout and gives you both 7-way and 4-flat outputs. You wire it once and trust it's gonna hold.) Functionality: Supports: lights, electric trailer brakes, battery charge line, and auxiliary power Hardwire install: blunt-cut leads connect to vehicle circuits Construction: Mounting: twist-lock into factory
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • 4 Flat
  • 7 Blade
  • TowSmart

Roadmaster Battery Disconnect for Towed Vehicle w/ Flat Tow Brake System - Gas Only

Retail: $297.78
Our Price: $215.25
In Stock
If you need to disconnect the battery to flat tow your vehicle, you're going to want this kit. It disconnects your battery with the push of a button - much safer and faster than doing it yourself ...
: Application: vehicles that require the battery to be disconnected for flat towing - consult your owner's manual Works with almost any 12V battery For gas engine vehicles only Notes: Not for use with diesel
  • Flat Tow Wiring Harness
  • Battery Disconnect
  • Roadmaster

Roadmaster Battery Disconnect for Towed Vehicle w/ Flat Tow Brake System - Diesel

Our Price: $222.64
In Stock
If you need to disconnect the battery to flat tow your vehicle, you're going to want this kit. It disconnects your battery with the turn of a knob - much safer and faster than doing it yourself - ...
your vehicle following use of this product. A charge line kit (RM-156-25 - sold separately) is recommended if you have a braking system that is using power from the towed vehicle's battery while it
  • Flat Tow Wiring Harness
  • Battery Disconnect
  • Roadmaster

Curt RVi Series Towed Battery Charger+ for Flat Towing

Our Price: $192.55
In Stock
Battery drain can sneak up on you when flat towing. The Curt RVi Battery Charger+ keeps your towed vehicle's battery charged, shows real-time status with LEDs, and saves you from dead-battery ...
charging status, voltage levels, and RV power. Universal Fit: Works with any 12V battery for worry-free flat towing. Built-In Protection: Safeguard protect your electrical system if it's ever hooked up
  • Flat Tow Brake System
  • Battery Charge Line Kit
  • CURT

Brake Buddy Classic 3 Portable Flat Tow Brake System - Preset

Our Price: $1,160.46
In Stock
This portable unit gets you smooth braking without a complex installation. Senses the RV braking and applies the car's brakes at an intensity preset by you. Easy to swap between multiple cars; settings adjust for smooth braking for any size car. ready to tow with 1-touch auto start Removes excess vacuum pressure from your car's brakes Checks braking system for errors Keeps car's battery fully charged with 15-amp battery charge line kit
  • Brake Systems
  • Pre-Set System
  • Portable System
  • Brake Buddy
  • Hydraulic Brakes
  • Air Over Hydraulic Brakes
  • Air Brakes
  • Indicator Lights
  • Every-Trip Setup
  • 12V Outlet

Blue Ox Battery Disconnect for Towed Vehicle w/ Flat Tow Brake System - Gas or Diesel

Our Price: $199.95
In Stock
If you need to disconnect the battery to flat tow your vehicle, you're going to want this kit. It disconnects your battery with the turn of a knob - much safer and faster than doing it yourself - ...
and other accessories without draining the battery Rated at 275-amp constant duty and 1250-amp surge capability Specs: Application: vehicles that require the battery to be disconnected for flat towing -
  • Flat Tow Wiring Harness
  • Auto Battery Disconnect
  • Blue Ox