Gail Honeyman(Author)
MECMO
MECMO 3ft 4-Pin Flat Trailer Extension Coiled Cable 4 Pin Male and Female Wiring Harness Adapter, Trailer Wire Extension 4-Way Vehicle-Side and Trailer-Side 4 Prong Connector Extender Cord 3 Feet 36''
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
SpecPicks Verdict
SpecPicks classifies MECMO 3ft 4-Pin Flat Trailer Extension Coiled Cable 4 Pin Male and Fe… as a category leader on buyer feedback in the power supplies & cables category, based on 249 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. MECMO's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for power supplies & cables of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.6★ average across customer reviews
- ✓ Backed by MECMO's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- Stretchable Length Up to 3ft: This 4 pin trailer wire extension plug and socket is about 3 feet (36 inch) when fully extended (stretchable to 3ft, comfortable stetch length 1ft-2ft) and bounce back to normal length
- Vehicle-side and Trailer Side: 4pin 4 wire male to female connector, fits wide variety of trailers with industry-standard 4-way flat sockets; Ideal for marine boat trailer, horse trailer, motorcycle trailer, ATV trailer, and other cargo utility
- Coiled Design: Flat 4-pin Coiled cable design wiring keeps wire from dragging; Stretchable coiled wire with 3' maximum length provides sufficient space and flexible for towing vehicle and trailer
- Plug and Play Trailer Light Plug: Trailer 4 prong extension cable cord require No cutting or splicing factory wire, flexible trailer 4-pin conversion cable provide plug-in simple connections for your towing projects
- Reliable Quality: Upgraded high quality soft PU cover with 18 AWG pure copper inner wire, this 4 prong trailer wiring connector is flexible, easy to stretch, effortless, quick to rebound and not easily deformed
Full Specifications
| Brand | MECMO |
|---|---|
| Color | 4 to 4 Trailer Coiled Extension - 3Ft |
| Gauge | 18.0 |
| Voltage | 12 Volts (DC) |
| Plug Type | Type A |
| Unit Count | 1.0 Count |
| Item Length | 3 Feet |
| Plug Format | Type A |
| Model Number | MECMO-FW4-91-MF |
| Mfr Part Number | MEUX2202-1 |
| Connector Gender | Male-to-Female |
| Indoor Outdoor Usage | Indoor, Outdoor |
| Power Cord Prong Count | 4 |
Ready to buy?
MECMO 3ft 4-Pin Flat Trailer Extension Coiled Cable 4 Pin Male and Female Wiring Harness Adapter, Trailer Wire Extension 4-Way Vehicle-Side and Trailer-Side 4 Prong Connector Extender Cord 3 Feet 36'' is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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