

Hero image 0 of Nilight 4 Way Trailer End Connector 5 Feet Jacketed Cable Heavy Duty 18AWG 4 Pin Trailer Light Plug Pure Copper Trailer Side Male End Replacement 4 Flat Extension Wiring Harness, 0 of 8
Nilight 4 Way Trailer End Connector 5 Feet Jacketed Cable Heavy Duty 18AWG 4 Pin Trailer Light Plug Pure Copper Trailer Side Male End Replacement 4 Flat Extension Wiring Harness
Key item features
- Trailer-Side 4 Pin Extension Wire: This trailer wire extension with 4 way flat plug connector is designed to provide plenty of extra length for your flexible installation. Provides a more convenient male plug arrangement for replacing broken wires on a variety of trailers. It can be used for marine boat trailers, horse trailers, motorcycle trailers, ATV trailers, and other cargo utility trailer hitches as long as it has a 4-way connection.
- Heavy Duty Trailer Light Plug: Nilight Trailer End Connector 4 Wire is a superior upgrade to your 4 prong taped wires on trailers. Come with 18 AWG standard color-coded wires ensure your proper wiring connection to your taillights, brake lights and turn signals.
- 4-pole flat connector: This 4-prong trailer light plug wiring equipped with blunt-cut, color-coded trailer wires, comes ready to splice into your existing trailer wiring. 4-pin connectors are available allowing the basic hookup of the lighting functions (Left/Right turn and brake lights) plus one pin is provided for a ground wire. (Not compatible with motorcycle trailer wiring, please confirm the fitment to be not the wrong item before ordering.)
- Built to Last: Nilight Flat 4-pin male end trailer harness is made of heavy duty 18-gauge wires and pure copper terminals, excellent weatherproof & abrasion proof cable sheath, Color coded wires for clearly identified as each wire's function, Extends wiring system provides more flexibility. Rated voltage: 300V. Heat resistance: 105掳C. It is wrapped with insulating rubber that will never rust or corrode.
- Package: 1x 5Ft 4 Way Trailer End Connector Wire, 1 x User Manual
Specs
Manufacturer part number, 50333T
Compatible cars, marine boat trailers, horse trailers, motorcycle trailers, ATV trailers, and other cargo utility trailer hitches as long as it has a 4-way connection.
Vehicle fitment type, Universal
Vehicle type, Trailer, Campervan, Tractor, Truck
Brand, Nilight
Assembled product weight, 0.3 lb
Manufacturer part number
50333T
Compatible cars, marine boat trailers, horse trailers, motorcycle trailers, ATV trailers, and other cargo utility trailer hitches as long as it has a 4-way connection.
Compatible cars
marine boat trailers, horse trailers, motorcycle trailers, ATV trailers, and other cargo utility trailer hitches as long as it has a 4-way connection.
Vehicle fitment type, Universal
Vehicle fitment type
Universal
Vehicle type, Trailer, Campervan, Tractor, Truck
Vehicle type
Trailer, Campervan, Tractor, Truck
Brand, Nilight
Brand
Nilight
Assembled product weight, 0.3 lb
Assembled product weight
0.3 lb
About this item
Product details
Product description
- Nilight 4 Way Trailer End Connector Wire
- 5feet 18AWG 4 Pin Jacketed Cable Trailer Wire
- Nilight electrical connectors are designed and manufactured to give you a reliable connection every time you plug in your trailer. This trailer wire extension with 4 way flat plug connector is designed to supply power for tail lights, turn and brake lights, as well as a ground connection.
- Suitable for marine boat trailers, horse trailers, motorcycle trailers, ATV trailers, and other cargo utility trailer hitches; also compatible with most trailers / caravans / RVs, etc.
Product Details
- Standard Color-code 4-Way Flat: 4-Pin connector can be used to connect the taillights, brake lights, reverse lights, turn signals, trailer brakes and auxiliary power.
- High Material: Pure copper and Tin-Plated terminal ensure great conductivity and durability; also constructed with brass and tin-plated copper terminals, ensuring optimum intensity and long service life for trailer lights.
- Waterproof and Dustproof: Fit for outdoor environments that require waterproof and dustproof performance. Ideal replacement for OEM vehicle end trailer plug to supply power.
- Heavy Duty Wires: Made of 18AWG wire (higher than standard heavy-duty constructions), withstands twists, tugs, and tangles. The pure copper core (18AWG wire diameter) offers better electrical conductivity and is not easy to get hot; wrapped with insulating rubber that is rust-proof, corrosion-resistant, highly waterproof, wear-resistant, flame retardant and cold resistant, ensuring extreme durability.
- Corrosion Prevention: Applying grease to trailer wiring terminals on a regular basis helps to prevent corrosion.
- Trailer-Side 4 Pin Extension Wire: This trailer wire extension with 4 way flat plug connector is designed to provide plenty of extra length for your flexible installation. Provides a more convenient male plug arrangement for replacing broken wires on a variety of trailers. It can be used for marine boat trailers, horse trailers, motorcycle trailers, ATV trailers, and other cargo utility trailer hitches as long as it has a 4-way connection.
- Heavy Duty Trailer Light Plug: Nilight Trailer End Connector 4 Wire is a superior upgrade to your 4 prong taped wires on trailers. Come with 18 AWG standard color-coded wires ensure your proper wiring connection to your taillights, brake lights and turn signals.
- 4-pole flat connector: This 4-prong trailer light plug wiring equipped with blunt-cut, color-coded trailer wires, comes ready to splice into your existing trailer wiring. 4-pin connectors are available allowing the basic hookup of the lighting functions (Left/Right turn and brake lights) plus one pin is provided for a ground wire. (Not compatible with motorcycle trailer wiring, please confirm the fitment to be not the wrong item before ordering.)
- Built to Last: Nilight Flat 4-pin male end trailer harness is made of heavy duty 18-gauge wires and pure copper terminals, excellent weatherproof & abrasion proof cable sheath, Color coded wires for clearly identified as each wire's function, Extends wiring system provides more flexibility. Rated voltage: 300V. Heat resistance: 105掳C. It is wrapped with insulating rubber that will never rust or corrode.
- Package: 1x 5Ft 4 Way Trailer End Connector Wire, 1 x User Manual
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Manufacturer part number
50333T
Compatible cars
marine boat trailers, horse trailers, motorcycle trailers, ATV trailers, and other cargo utility trailer hitches as long as it has a 4-way connection.
Vehicle fitment type
Universal
Vehicle type
Trailer, Campervan, Tractor, Truck
Warranty
Warranty information
Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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Showing 1-1 of 1 review
Jul 18, 2026
Reviewer name: anonymous
5 out of 5 stars
Verified Purchase
my trailer
Excellent heavy duty nice long cord.
Incentivized Review
Helpful?0VC16METOVSE18897056065
Current price is USD$10.99
Price when purchased online
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4.757396449704142 out of 5 stars
Extended holiday returns
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