Roadmaster Towed Vehicle Wiring Kits
By law, a towed vehicle's turn signals, running lights and brake lights must mimic the motorhome’s. There are a few ways to do
this: with diodes, bulb and socket kits, or magnetic tow lights.
Diodes are used to connect your towed vehicle's turn signals, running lights and brake signals to your motorhome's. Diodes prevent
electrical feedback and protect both vehicles’ electrical systems. Roadmaster offers traditional diodes and Smart Diodes, which are
designed specifically for vehicles with variable voltage — also known as multiplexing.
Bulbs and sockets bypass the towed vehicle's electrical system but require drilling a hole in your sealed taillight assembly and some
taillights are too small to accomodate them.
Some vehicles are better suited to one solution or the other. To find your kit, visit your local dealership.
SMART DIODES FOR VARIABLE VOLTAGE VEHICLES
Diodes are frequently used in wiring kits to prevent the
backflow of current to the electrical system of the towed
vehicle or motorhome; however, many newer vehicles
now use a multiplex wiring system, whereby multiple
electrical signals may be sent down a single wire (brake
and taillights, for example). This is called variable voltage.
Smart Diodes correctly modulate the voltage to activate
only the intended circuit. The result is vehicle lighting that
looks and functions as intended.
Whereas regular diodes require four per vehicle, Smart Diodes only require two.
153782 - Towed car wiring kit with Smart Diodes with incandescent bulbs.
153789 - Towed car wiring kit with Smart Diodes with LED bulbs.
782 - 2-pack Smart Diodes for incandescent bulbs
789 - 2-pack Smart Diodes for LED bulbs
backflow of current to the electrical system of the towed
vehicle or motorhome; however, many newer vehicles
now use a multiplex wiring system, whereby multiple
electrical signals may be sent down a single wire (brake
and taillights, for example). This is called variable voltage.
Smart Diodes correctly modulate the voltage to activate
only the intended circuit. The result is vehicle lighting that
looks and functions as intended.
Whereas regular diodes require four per vehicle, Smart Diodes only require two.
153782 - Towed car wiring kit with Smart Diodes with incandescent bulbs.
153789 - Towed car wiring kit with Smart Diodes with LED bulbs.
782 - 2-pack Smart Diodes for incandescent bulbs
789 - 2-pack Smart Diodes for LED bulbs
BULB AND SOCKET KITS
UNIVERSAL AND ECONOMY TOWED
VEHICLE WIRING KITS
VEHICLE WIRING KITS
152-LEDRP - LED bulb and socket kit
152-2 - 2-pack LED bulbs and sockets.
152-50 - 2-pack of LED bulbs only
155 - Incandescent bulb and socket kit
155-10 - 10 bulbs and sockets (bulk)
155-2 - One pair bulbs and sockets.
152-2 - 2-pack LED bulbs and sockets.
152-50 - 2-pack of LED bulbs only
155 - Incandescent bulb and socket kit
155-10 - 10 bulbs and sockets (bulk)
155-2 - One pair bulbs and sockets.
154 - Universal Wiring Kit
152 - Economy Wiring Kit.
Similar to the 154 but bulk-packed and without
molded four-way plugs or power cord.
152 - Economy Wiring Kit.
Similar to the 154 but bulk-packed and without
molded four-way plugs or power cord.
MAGNETIC TOW LIGHTS
A self-contained system that requires no splicing, this kit is a quick and easy way
to connect a towed vehicle's electrical system To a motorhome’s.
Fits all vehicles Magnets hold lights securely
2120 - Magnetic tow lights with 4-wire flat plugs and harness.
to connect a towed vehicle's electrical system To a motorhome’s.
2120 - Magnetic tow lights with 4-wire flat plugs and harness.
ALL-IN-ONE TOWED VEHICLE WIRING KITS
Complete diode wiring kits for the two most popular towing combinations. They
have everything in the Economy wiring
kit (described above), plus a Flexo-Coil power cord.
15247 - For 4- to 7-wire combinations.
15267 - For 6- to 7-wire combinations.
Complete diode wiring kits for the two most popular towing combinations. They
have everything in the Economy wiring
kit (described above), plus a Flexo-Coil power cord.
15247 - For 4- to 7-wire combinations.
15267 - For 6- to 7-wire combinations.
FLEXO-COIL WIRING KITS
HY-POWER DIODES
For tow bars without cable channel guides.
Flexo-Coil cords expand to more than eight
feet and conveniently contract for storage.
164 - 4-wire kit with plugs and sockets .
1644 - 4-wire kit with plugs, sockets and bracket.
146 - 6-wire kit with plugs and sockets.
1466 - 6-wire kit with plugs, sockets and bracket.
164-7 - 7- to 4-wire kit with plugs, socket and bracket.
146-7 - 7- to 6-wire kit with plugs, socket and bracket.
Flexo-Coil cords expand to more than eight
feet and conveniently contract for storage.
164 - 4-wire kit with plugs and sockets .
1644 - 4-wire kit with plugs, sockets and bracket.
146 - 6-wire kit with plugs and sockets.
1466 - 6-wire kit with plugs, sockets and bracket.
164-7 - 7- to 4-wire kit with plugs, socket and bracket.
146-7 - 7- to 6-wire kit with plugs, socket and bracket.
Diodes tie into the towed vehicle’s brake
light, running light and turn signal wiring,
and connect it to the motorhome. They
permit electricity to flow in only one
direction — preventing electrical feedback
and the damage it can cause to both
vehicles’ electronics.
790 - One diode.
792 - Two diodes
793 - Three diodes
794 - Four diodes
790-25 - 25-pack (bulk).
light, running light and turn signal wiring,
and connect it to the motorhome. They
permit electricity to flow in only one
direction — preventing electrical feedback
and the damage it can cause to both
vehicles’ electronics.
790 - One diode.
792 - Two diodes
793 - Three diodes
794 - Four diodes
790-25 - 25-pack (bulk).
STRAIGHT CORD WIRING KITS
For tow bars with cable channel guides
For tow bars with cable channel guides
PARK LIGHT DIODE
98164 - 4-wire kit with plugs and sockets
98146 - 6-wire kit with plugs and sockets
98164-7 - 7-to 4-wire kit with plugs, socket and bracket
98146-7 - 7- to 6-wire kit with plugs, socket and bracket
Electrical damage can occur if a towed
vehicle's headlights are turned on while still
connected to the motorhome. Park Light
diodes stop any interaction between the
two park light systems, preventing electrical
feedback and electrical damage.
690 - Park Light diode
HYBRID POWER CORD
BRITE-LITE
This half-straight, half-coiled hybrid cord automatically expands or contracts to
accommodate any changes to your towing system.
IT’S ALWAYS LONG ENOUGH —
Coiled end expands when adding an
extension/adapter to your hitch receiver.
IT’S ALWAYS SHORT ENOUGH —
Coiled end contracts to help prevent dragging.
IT WORKS WITH ANY TOW BAR —
For Nighthawk and All-Terrain™ Tow Bars:
Straight portion slides into the channel guides.
For Other Tow Bars: Wrap the power cord around the tow bar arm.
1676-7 - 7- to 6-wire hybrid power cord with plug and socket
Connects a vehicle with a separate brake/turn
signal system to a vehicle with a combined
brake/turn system — delivering more current
to the towed vehicle’s brake and turn signal
lights for brighter illumination.
732 - 3-to-2 converter
HEAVY-DUTY ELECTRICAL SOCKET BRACKETS
These brackets hold the electrical socket firmly in
place, making it easy to plug and unplug the power
cord. Made of 1/8-inch thick steel — not lightweight
sheet metal. Both straight and angled brackets fit most
electrical sockets, and can be either welded or bolted.
910030 - Straight bracket
910030-5 - Bracket with 90° bend.
place, making it easy to plug and unplug the power
cord. Made of 1/8-inch thick steel — not lightweight
sheet metal. Both straight and angled brackets fit most
electrical sockets, and can be either welded or bolted.
910030 - Straight bracket
910030-5 - Bracket with 90° bend.