Top 10 4-Way Bonded Trailer Wiring – Automotive Replacement Electrical Wiring Harnesses

As an Amazon Associate I earn from qualifying purchases.

1. Best Connections

#ad

Best Connections Flat Trailer Light Cable Wiring Harness 100 Feet 14 AWG 4 Wire CCA

#ad
Best Connections #ad - Copper clad Aluminum CCA Wire. White: vehicle ground point - metal, uncoated, rustproof; Brown: Tailight of vehicle's wiring harness. Single conductor Stranded Wire. Green: right turn of vehicle's wiring harness; Yellow: Left turn of vehicle's wiring harness. 4-way flat trailer wiring; 14 Gauge - 100 Feet.
BrandBest Connections #ad
ManufacturerBest Connections #ad
Part NumberBC-14-100FLAT

2. Reese

#ad

Reese Towpower 85205 4-Way Bonded Trailer Wiring,Multi

#ad
Reese #ad - Heavy 16/18 gauge wire. Length is 25 Ft. Replacement wire when rewiring trailer. Operates left, right turns, tail lights and ground. Bonded wire for a neat installation.
BrandReese #ad
ManufacturerReese Towpower #ad
Height3.8 Inches
Length8.6 Inches
Weight1.2 Pounds
Width3.8 Inches
Part Number85205
Model85205
Warranty1 Year

3. Hopkins Towing Solutions

#ad

Hopkins 49915 16/18 Gauge Bonded Wire Spool, 25 Feet

#ad
Hopkins Towing Solutions #ad - 16 gauge on ground, 18 gauge on all others. 100% copper 4 wire bonded. Printed functions on wire. 25 feet. Great for all basic wiring needs.
BrandHopkins Towing Solutions #ad
ManufacturerHopkins Towing Solution #ad
Height5.63 Inches
Length6.63 Inches
Weight1.1 Pounds
Width1.25 Inches
Part Number49915
Model49915
WarrantyHopkins warrants all products to be free from defects in material and workmanship, under normal use and service, for a peirod of 90 days from the date of original purchase, with the exception of the Brake-Force and Impulse brake control items, which are warranted to be free from defects in material and workmanship, under normal use and service, for the original buyer's lifetime

4. CURT

#ad

4 Pin Trailer Wiring, 25-Foot Spool, CURT 57001 Bonded Trailer Wiring

#ad
CURT #ad - Standard 4-way wire for rewiring a trailer or a similar application. One-year limited warranty. Color-coded wires green, brown, yellow, white for easier splicing. Bonded wires. 25-foot spool.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length9 Inches
Weight2 Pounds
Width4 Inches
Part Number57001
Model57001
WarrantyLimited Lifetime

5. CURT

#ad

CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires

#ad
CURT #ad - Durable construction. The 12-inch wire lead provides extra length for an easy installation. It features tabs on the top and bottom for a better grip when plugging into your vehicle or unplugging. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer plug.

Reliable connection. Versatile design. The 4-pin wiring design matches industry-standard 4-way flat sockets and can be used on a wide variety of trailers. Equipped with blunt-cut, color-coded wires, this 4-prong trailer wiring plug comes ready to install. This 4-pin trailer wiring plug comes ready to splice into your existing trailer wiring.

For long-lasting use and a reliable connection, the housing of this 4-pin trailer wiring plug is made from durable black molded rubber that will never rust or corrode. Easy grip. Ready to install. This trailer connector makes a great replacement 4-flat trailer wiring connector. It has 16-gauge wires and can be used to connect the taillights, brake lights and turn signals.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length7 Inches
Weight0.05 Pounds
Width2 Inches
Part Number58030
Model58030
WarrantyLimited Lifetime

6. Nilight

#ad

10039W 4 Pin Flat Trailer Wiring Harness Kit 18AWG 25Feet Male 4Feet Female Wishbone-Style Wiring Harness Extension kit for Utility Boat Trailer Lights, Nilight

#ad
Nilight #ad - Built to last: employ quality pure copper wire with tin plating for the best current conductivity and anti-oxidation ability, no brittleness, and premium PVC coating for the best anti-corrosion and anti-aging ability.

Color coded wires: wires are color coded and bonded, brown for running and license light, white for ground, yellow for left stop turn and green for right stop. Withstand sea water, no break, durable to last. Plug and play, matches with any other standard 4 pin flat plugs. Universal application: work perfectly on trailers under and over 80” wide such as marine boat trailer, cargo utility trailer to install trailer lights.

Standard 4 way flat connector: male plug with 5 wires, female plug with 4 wires. Easily to route into your trailer's wiring system and connect with lights. Wire length: comes with 18awg 25ft male and 4ft female connector wire, both with full ground wire for your use. Designed to split at the trailer tongue and run down each side of the trailer to supply power for trailer lights.
BrandNilight #ad
ManufacturerNilight #ad
Part Number10039W
Model10039W
Warranty2 Years Warranty

7. Best Connections

#ad

Best Connections Primary Trailer Light Cable Bonded Wire 16-4 16 Gauge 4 Wire Bonded Parallel 25 Feet

#ad
Best Connections #ad - Constructed with bonded wires and durable molded rubber. Standard color-coded wire for easier installation. 4-way flat output connects tail lights, brake lights and turn signals. Single conductor Stranded Wire. 4-way flat trailer wiring 14 Gauge - 25 Feet.
BrandBest Connections #ad
ManufacturerBest Connections #ad
Height7 Inches
Length7 Inches
Weight0.02 Pounds
Width0.5 Inches
Part NumberBC-14-25FLT
Model8542119387

8. CURT

#ad

CURT 58348 Trailer-Side 4-Pin Flat Wiring Harness with 48-Inch Wires

#ad
CURT #ad - It has 16-gauge wires and can be used to connect the taillights, brake lights and turn signals. The 48-inch wire lead provides plenty of extra length for a flexible installation. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer plug.

Ready to install. Equipped with blunt-cut, color-coded wires and four snap locks, this 4-prong trailer wiring plug comes ready to install. This trailer connector makes a great replacement 4-flat trailer wiring connector. Reliable connection. For long-lasting use and a reliable connection, the housing of this 4-pin trailer wiring plug is made from durable black molded rubber that will never rust or corrode.

Durable construction. Easy grip. It features tabs on the top and bottom for a better grip when plugging into your vehicle or unplugging. The 4-pin wiring design matches industry-standard 4-way flat sockets and can be used on a wide variety of trailers. This 4-pin trailer wiring plug comes ready to splice into your existing trailer wiring. Versatile design.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length7 Inches
Weight0.2 Pounds
Width2 Inches
Part Number58348
Model58348
WarrantyOne Year Limited

9. Maasdam

#ad

Maasdam MPT203 Trailer Wiring Kit with 4 Way Flat 60-Inch Connector for Vehicle and Trailer End

#ad
Maasdam #ad - Connects easily to both the trailer and vehicle ends. The ground wire runs the entire length of the unit. 60-inch wiring harness. Wires are color coded so you know which wire will light your turn signals and break lights. Made of 18-Gauge bonded wire.
BrandMaasdam #ad
ManufacturerPull'r Holdings #ad
Height7 Inches
Length3 Inches
Weight0.2 Pounds
Width2.75 Inches
Part NumberMPT203
ModelMPT203

10. Partsam

#ad

Partsam Trailer Wire Extension Plug, 32" Inch 4 Way Flat 4 Pin Universal Wiring Connector, 4 Pin Hitch Light Trailer Wiring Harness Extender with Rubber Cab for LED Brake Tailgate Light Bar

#ad
Partsam #ad - 4-way standard flat light connector with trailer ends; For all types of trailers including marine boat trailer, ATV trailer, horse trailer, motorcycle trailer, and other cargo utility trailer hitches tow/haul vehicle must have 4-way plug.

1 year warranty; if you have any problems. 4 pole flat trailer plug connect 6/12/24v with 32" color-coded lead wire, Truck, safely extend Towing Lights without Consequently Having a Dimmer Light; Used for All Types of Vehicles Like Trailer, Motorcycle Trailer, ATV Trailer. Heavy-duty 18-gauge wires for strength and longevity; Color-coded for your convenience; Made from durable rubber-molded and color-coded bonded loop wire to easily connect with your vehicle's wiring system. 4 pins flat plug adapter is designed to supply power for tail lights, turn signals and brake lights and other signal lights as well as a ground connection.
BrandPartsam #ad
ManufacturerPartsam #ad
Height1 Inches
Length1 Inches
Width1 Inches
Part NumberGTCV-0885544859
Model13