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Ships From Usa 2020-2023 Tesla Model 3 Plug&play Vehicle-side 4-pin Trailer Wiring Harness Kit Easy Returns [9pBST4Md]

$23.99 $76.99 -69%

Fitment:2020-2023 Tesla Model 3Specifications:Item: 4-Pin Trailer Wiring HarnessMaterial: SMT circuitryDesign: Plug & PlaySignal Circuits - 5 amps per sideTail / Running Circuits - 7.5 amps totalCondition: Brand NewNotes: Vehicle battery connecti

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Ships From Usa 2020-2023 Tesla Model 3 Plug&play Vehicle-side 4-pin Trailer Wiring Harness Kit Easy Returns [9pBST4Md]

Fitment:

  • 2020-2023 Tesla Model 3

Specifications:

  • Item: 4-Pin Trailer Wiring Harness
  • Material: SMT circuitry
  • Design: Plug & Play
  • Signal Circuits - 5 amps per side
  • Tail / Running Circuits - 7.5 amps total
  • Condition: Brand New
  • Notes: Vehicle battery connection required

Features:

4-Pin Trailer Wiring Harness
Provides a standard 4-pin trailer wiring connector for connecting trailer tail lights, brake signal lights and turn signals, which allows the signals on the trailer to the signals on the trucks you are driving and improving driving safety.

Fitment List
Fit for 2020-2023 Tesla Model 3
Vehicle battery connection required
(Please check the following fitment list before purchasing)

Excellent Performance & Durability
It is composed of high-specification SMT circuitry, which ensures excellent electrical conductivity and safety, more stable power output, and more reliability. 
Specially equipped with rubber boots to protect against dust, moisture, corrosion, and the elements and keep it clean at all times.

Easy Installation
Simple and convenient to use, with plug & play design connector, only directly connected to the factory tail light assembly, no need to splice or cut, which makes the wiring become easier and faster. 

Package List
1 x 4-Pin Trailer Wiring Harness with installation instructions
(including black signal converter, plug&play connector, red fuse and holder, Standard 4-pin trailer wiring connector, Battery connection wire ,and other necessary wiring components)
You do not need to purchase additional accessories, with installation instructions to make your installation easier.

What Our Customers Say

January 18, 2026

Absolutely no complaints!

A very smart and intuitive device.

- Amelia Richardson.

January 18, 2026

Absolutely no complaints!

The setup couldn't have been easier.

- Aurora Brooks.

January 18, 2026

Absolutely no complaints!

The value you get for this price is incredible.

- Bella Peterson.

Write a Review

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