---
title: "4 pin trailer connector — Niche Verdict: Skip it (42/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/4-pin-trailer-connector"
last_updated: "2026-07-09T22:59:33.480Z"
locale: en
meta:
  description: "a small market ($151K/yr) — 4 pin trailer connector doesn't clear our bar today."
  "og:description": "a small market ($151K/yr) — 4 pin trailer connector doesn't clear our bar today."
  "og:title": "4 pin trailer connector — Niche Verdict: Skip it (42/100) | Amazon United States - Flapen"
---

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# **4 pin trailer connector**

**Skip it****42/100 **

a small market ($151K/yr) — 4 pin trailer connector doesn't clear our bar today.

**Market/yr**

**$151K**

**Growth (1y)**

**+169.4%**

**Products**

**16**

**Brands**

**11**

was 8 a year ago

**Sellers**

**17**

**Price range**

**$3.61–$15.56**

**Returns**

**1.3%**

**Rating**

**4.7★**

**Skip it**

Scored 42/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns

Market size

**8**

 ×0.30

Growth

**73**

 ×0.30

Competition

**34**

 ×0.20

Quality gap

**24**

 ×0.10

Returns

**90**

 ×0.10

## **Demand**

Weekly Amazon search volume, last 104 weeks — +169.4% year over year.

4K2KSpike '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

## **Seasonality**

Monthly demand index across the year — 1.00 is average.

JFMAMJJASOND

Peak months: May · busiest ÷ quietest = 1.9×

## **Competition**

- MECMO40% - CURT17% - ELFFILLA11% - Nilight8% - Gubrdfrsod7% - Nityrish6% - Other (5 brands)12%

The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them. 11 brands and 17 sellers compete here.

**Brands**

**11 **▲rising

was 8 a year ago

**Sellers**

**17**

**Top 5 brand share**

**82%**

#ProductBrandPriceRatingReviewsClick shareTrend

1
![MECMO 4-Way Flat Trailer End Connector 25 Inch 16AWG 4 Prong Trailer Wiring Harness Plug with Dust Cover Trailer-Side 4-Pin Trailer Light Plug Male End Replacement Connector for Trailer Hitch Wire](https://m.media-amazon.com/images/I/41zbDzOJrnL.jpg) [**MECMO 4-Way Flat Trailer End Connector 25 Inch 16AWG 4 Prong Trailer Wiring Harness Plug with Dust Cover Trailer-Side 4-Pin Trailer Light Plug Male End Replacement Connector for Trailer Hitch Wire**](https://www.amazon.com/dp/B0B19GHHW8)

MECMO$8.884.8★58529%▲rising

2
![CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires](https://m.media-amazon.com/images/I/41VLS7pZLrL.jpg) [**CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires**](https://www.amazon.com/dp/B001GN3BSI)

CURT$3.614.7★4,98113%▲rising

3
![ELFFILLA 25 Inch 4-Way Flat Trailer Connector 16AWG Water Dust Proof 4 Prong Wiring Harness with Zinc Terminals - 4 Pin Male End for Trailer Boat RV - Sealed Cover Included](https://m.media-amazon.com/images/I/41gLvjPuyGL.jpg) [**ELFFILLA 25 Inch 4-Way Flat Trailer Connector 16AWG Water Dust Proof 4 Prong Wiring Harness with Zinc Terminals - 4 Pin Male End for Trailer Boat RV - Sealed Cover Included**](https://www.amazon.com/dp/B0FH745NWT)

ELFFILLA$6.004.7★10011%▲rising

4
![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 2 Years Warranty](https://m.media-amazon.com/images/I/41a1+VgPdcL.jpg) [**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 2 Years Warranty**](https://www.amazon.com/dp/B0CP4548D9)

Nilight$9.354.3★1928%▼falling

5
![MECMO 4 Way Trailer End Connector Wire 5 Feet Jacketed Cable Heavy Duty 18AWG 4 Pin Flat Trailer Light Plug Color-Coded Pure Copper Trailer-Side Male Replacement 4 Wire Connector Trailer Hitch Wiring](https://m.media-amazon.com/images/I/41ZK3+DoVFL.jpg) [**MECMO 4 Way Trailer End Connector Wire 5 Feet Jacketed Cable Heavy Duty 18AWG 4 Pin Flat Trailer Light Plug Color-Coded Pure Copper Trailer-Side Male Replacement 4 Wire Connector Trailer Hitch Wiring**](https://www.amazon.com/dp/B0C3GVMNXS)

MECMO$13.774.6★2747%▼falling

6
![Nityrish 4 Pin Trailer Connector Harness Extension 80 Inch 16AWG 4 Way Trailer Plug Flat Wire Extender Male to Female Trailer Light Connector for Hitch Utility Boat or RV Trailers](https://m.media-amazon.com/images/I/41qaJIpRVzL.jpg) [**Nityrish 4 Pin Trailer Connector Harness Extension 80 Inch 16AWG 4 Way Trailer Plug Flat Wire Extender Male to Female Trailer Light Connector for Hitch Utility Boat or RV Trailers**](https://www.amazon.com/dp/B0FHJ1YPD7)

Nityrish$6.234.8★1776%▲rising

7
![Gubrdfrsod 16AWG 5FT 4 Pin Trailer Connector Black 4 Pin Trailer Wiring Harness Pure Copper 4 Wire Trailer Wire with Jacketed Heavy Duty 4 Way Trailer Plug with Dust Cover](https://m.media-amazon.com/images/I/31xpy0JG-IL.jpg) [**Gubrdfrsod 16AWG 5FT 4 Pin Trailer Connector Black 4 Pin Trailer Wiring Harness Pure Copper 4 Wire Trailer Wire with Jacketed Heavy Duty 4 Way Trailer Plug with Dust Cover**](https://www.amazon.com/dp/B0D1K8H49L)

Gubrdfrsod$14.894.7★2004%—flat

8
![MECMO 4 Pin Vehicle Side Trailer Wiring Harness 49 Inch 16AWG 4 Prong Trailer Light Plug Socket with Dust Cover Truck 4 Way Flat Trailer Connector Female 4 Wire Replacement Trailer Hitch Wiring 4ft](https://m.media-amazon.com/images/I/4101cn0H3ML.jpg) [**MECMO 4 Pin Vehicle Side Trailer Wiring Harness 49 Inch 16AWG 4 Prong Trailer Light Plug Socket with Dust Cover Truck 4 Way Flat Trailer Connector Female 4 Wire Replacement Trailer Hitch Wiring 4ft**](https://www.amazon.com/dp/B0DHH923N2)

MECMO$9.784.7★3104%—flat

9
![Ekrnlyi 4 Pin Trailer Connector (2 Pack) 25 Inch 16 AWG 4 Way Male Trailer Light Plug with Dust Cover Trailer Side Replacement Connector 4 Wire Pure Copper Trailer Wiring Harness Extension](https://m.media-amazon.com/images/I/41ayDIiwSwL.jpg) [**Ekrnlyi 4 Pin Trailer Connector (2 Pack) 25 Inch 16 AWG 4 Way Male Trailer Light Plug with Dust Cover Trailer Side Replacement Connector 4 Wire Pure Copper Trailer Wiring Harness Extension**](https://www.amazon.com/dp/B0GD8473SY)

Ekrnlyi$9.844.7★534%▲rising

10

![WIUYNTLZ 4 Pin Trailer Connector 32 4-Way Flat Trailer Plug 16AWG Waterproof Silicone Trailer Wiring Harness with Sealed Cover Tinned Copper 4-Prong Electrical Plug for Boat RV & Utility Trailer](https://m.media-amazon.com/images/I/41MA75P3ACL.jpg) [**WIUYNTLZ 4 Pin Trailer Connector 32 4-Way Flat Trailer Plug 16AWG Waterproof Silicone Trailer Wiring Harness with Sealed Cover Tinned Copper 4-Prong Electrical Plug for Boat RV & Utility Trailer**](https://www.amazon.com/dp/B0GCNP2R74)

WIUYNTLZ$6.934.8★383%▲rising

11

![Gubrdfrsod 18AWG 5FT 4 Pin Trailer Connector Pure Copper 4 Pin Trailer Wiring Harness Jacketed Cable Heavy Duty Male Extension Wiring Harness 4 Wire 4-Flat Connector 4 Way Flat Plug with Dust Cover](https://m.media-amazon.com/images/I/41Zokwr1UTL.jpg) [**Gubrdfrsod 18AWG 5FT 4 Pin Trailer Connector Pure Copper 4 Pin Trailer Wiring Harness Jacketed Cable Heavy Duty Male Extension Wiring Harness 4 Wire 4-Flat Connector 4 Way Flat Plug with Dust Cover**](https://www.amazon.com/dp/B0BM67W61Y)

Gubrdfrsod$10.804.7★3112%▼falling

12

![CURT 58671 Vehicle-Side and Trailer-Side 4-Pin Round Wiring Harness Connectors](https://m.media-amazon.com/images/I/313vHHUSs1L.jpg) [**CURT 58671 Vehicle-Side and Trailer-Side 4-Pin Round Wiring Harness Connectors**](https://www.amazon.com/dp/B001EOV3MU)

CURT$15.564.7★7622%▼falling

13

![25 Inch 4-Way 4 Prong Trailer Wiring Harness Plug Male End Replacement Connector for Trailer Hitch Wire Multi-Purpose Ship Lamp Dust Cover with Trailer Side 4-Pin Trail Lamp Plug](https://m.media-amazon.com/images/I/41et-7wLZ1L.jpg) [**25 Inch 4-Way 4 Prong Trailer Wiring Harness Plug Male End Replacement Connector for Trailer Hitch Wire Multi-Purpose Ship Lamp Dust Cover with Trailer Side 4-Pin Trail Lamp Plug**](https://www.amazon.com/dp/B0DCNDDPJR)

Ruibapa$7.714.8★1732%▼falling

14

![4 Way Trailer End Connector 5 Feet Jacketed Cable 18 AWG 4 Pin Trailer Connector Heavy Duty 4 Wire Trailer Light Plug Pure Copper Trailer Wiring Harness 4 Flat Extension Side Male Replacement](https://m.media-amazon.com/images/I/41mqgwZDIkL.jpg) [**4 Way Trailer End Connector 5 Feet Jacketed Cable 18 AWG 4 Pin Trailer Connector Heavy Duty 4 Wire Trailer Light Plug Pure Copper Trailer Wiring Harness 4 Flat Extension Side Male Replacement**](https://www.amazon.com/dp/B0DX6BTWBJ)

ecocstm$8.244.4★472%▲rising

15

![80 Inch 4 Way Flat Trailer Connector Harness Extension 16AWG 4 Pin Plug Trailer Wire Extender 4 Prong Male to Female Trailer Light Wiring for Hitch Utility Boat or RV Trailers](https://m.media-amazon.com/images/I/410y3n8rhyL.jpg) [**80 Inch 4 Way Flat Trailer Connector Harness Extension 16AWG 4 Pin Plug Trailer Wire Extender 4 Prong Male to Female Trailer Light Wiring for Hitch Utility Boat or RV Trailers**](https://www.amazon.com/dp/B0GCZG11Y3)

Eumelia$6.524.6★602%▲rising

**~~Showing 15 of 16 — show all ~~**

## **Product shelf**

All 16 tracked products in this niche.

Top sellersNewestTrending

[![MECMO 4-Way Flat Trailer End Connector 25 Inch 16AWG 4 Prong Trailer Wiring Harness Plug with Dust Cover Trailer-Side 4-Pin Trailer Light Plug Male End Replacement Connector for Trailer Hitch Wire](https://m.media-amazon.com/images/I/41zbDzOJrnL.jpg)**MECMO 4-Way Flat Trailer End Connector 25 Inch 16AWG 4 Prong Trailer Wiring Harness Plug with Dust Cover Trailer-Side 4-Pin Trailer Light Plug Male End Replacement Connector for Trailer Hitch Wire** MECMO**$8.88**4.8★585 reviews](https://www.amazon.com/dp/B0B19GHHW8) [![CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires](https://m.media-amazon.com/images/I/41VLS7pZLrL.jpg)**CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires** CURT**$3.61**4.7★4,981 reviews](https://www.amazon.com/dp/B001GN3BSI) [![ELFFILLA 25 Inch 4-Way Flat Trailer Connector 16AWG Water Dust Proof 4 Prong Wiring Harness with Zinc Terminals - 4 Pin Male End for Trailer Boat RV - Sealed Cover Included](https://m.media-amazon.com/images/I/41gLvjPuyGL.jpg)**ELFFILLA 25 Inch 4-Way Flat Trailer Connector 16AWG Water Dust Proof 4 Prong Wiring Harness with Zinc Terminals - 4 Pin Male End for Trailer Boat RV - Sealed Cover Included** ELFFILLA**$6.00**4.7★100 reviews](https://www.amazon.com/dp/B0FH745NWT) [![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 2 Years Warranty](https://m.media-amazon.com/images/I/41a1+VgPdcL.jpg)**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 2 Years Warranty** Nilight**$9.35**4.3★192 reviews](https://www.amazon.com/dp/B0CP4548D9) [![MECMO 4 Way Trailer End Connector Wire 5 Feet Jacketed Cable Heavy Duty 18AWG 4 Pin Flat Trailer Light Plug Color-Coded Pure Copper Trailer-Side Male Replacement 4 Wire Connector Trailer Hitch Wiring](https://m.media-amazon.com/images/I/41ZK3+DoVFL.jpg)**MECMO 4 Way Trailer End Connector Wire 5 Feet Jacketed Cable Heavy Duty 18AWG 4 Pin Flat Trailer Light Plug Color-Coded Pure Copper Trailer-Side Male Replacement 4 Wire Connector Trailer Hitch Wiring** MECMO**$13.77**4.6★274 reviews](https://www.amazon.com/dp/B0C3GVMNXS) [![Nityrish 4 Pin Trailer Connector Harness Extension 80 Inch 16AWG 4 Way Trailer Plug Flat Wire Extender Male to Female Trailer Light Connector for Hitch Utility Boat or RV Trailers](https://m.media-amazon.com/images/I/41qaJIpRVzL.jpg)**Nityrish 4 Pin Trailer Connector Harness Extension 80 Inch 16AWG 4 Way Trailer Plug Flat Wire Extender Male to Female Trailer Light Connector for Hitch Utility Boat or RV Trailers** Nityrish**$6.23**4.8★177 reviews](https://www.amazon.com/dp/B0FHJ1YPD7) [![Gubrdfrsod 16AWG 5FT 4 Pin Trailer Connector Black 4 Pin Trailer Wiring Harness Pure Copper 4 Wire Trailer Wire with Jacketed Heavy Duty 4 Way Trailer Plug with Dust Cover](https://m.media-amazon.com/images/I/31xpy0JG-IL.jpg)**Gubrdfrsod 16AWG 5FT 4 Pin Trailer Connector Black 4 Pin Trailer Wiring Harness Pure Copper 4 Wire Trailer Wire with Jacketed Heavy Duty 4 Way Trailer Plug with Dust Cover** Gubrdfrsod**$14.89**4.7★200 reviews](https://www.amazon.com/dp/B0D1K8H49L) [![MECMO 4 Pin Vehicle Side Trailer Wiring Harness 49 Inch 16AWG 4 Prong Trailer Light Plug Socket with Dust Cover Truck 4 Way Flat Trailer Connector Female 4 Wire Replacement Trailer Hitch Wiring 4ft](https://m.media-amazon.com/images/I/4101cn0H3ML.jpg)**MECMO 4 Pin Vehicle Side Trailer Wiring Harness 49 Inch 16AWG 4 Prong Trailer Light Plug Socket with Dust Cover Truck 4 Way Flat Trailer Connector Female 4 Wire Replacement Trailer Hitch Wiring 4ft** MECMO**$9.78**4.7★310 reviews](https://www.amazon.com/dp/B0DHH923N2)

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Quality-Overall**26%

*“Decent quality”*

**Value For Money**11%

*“Great deal”*

**Advertised Vs Actual Product**10%

*“Works as it should”*

**Assembly/Installation**8%

*“Installed”*

**Size-Overall**6%

*“Good fit”*

**Socket/Port/Plug**5%

*“Good 4 pin extended”*

**Efficiency**5%

*“Works well”*

**Ease Of Use**3%

*“Very Handy”*

**Connectivity-Overall**3%

*“Well made connection”*

**Material Quality**2%

*“Material: The wiring is pure copper”*

### **What buyers complain about **

**Size-Overall**15%

*“You can't even force it to fit”*

**Thickness**7%

*“The wire itself is pretty thick”*

**Quality-Overall**7%

*“Cheap”*

**Connectivity-Overall**4%

*“my connector was barely making contact”*

**Heating**4%

*“the heat shrink stuck like it is supposed to”*

**Rusts/Corrodes**4%

*“My old wiring hardness was rusted out”*

**Socket/Port/Plug**4%

*“I had a trailer that the connector accidentilly drug the pavement”*

**Functionality-Overall**3%

*“Didn't work”*

**Product Condition**3%

*“not what expect from a brand new part”*

**Compatibility-Overall**3%

*“Not compatible with mounting brackets”*

#### **Top return reasons**- Compatibility-Overall24% - Size-Overall23% - Socket/Port/Plug13% - Functionality-Overall6% - Defective Material/Parts6% - Connectivity-Overall6% - Length5% - Advertised Vs Actual Product4% - Value For Money3% - Quality-Overall2%