Recommended 7-Way to 4-Way Adapter for 2012 Mercedes-Benz GL450
Published 11/02/2021 >
Products Featured in This Question
Question:
Hi I have 2012 GL450 I have 7 blade and my trailer is 4 adapter wiring and is not working I search around they said Etrailer has it so Im asking can send me 7 blade to 4 adapter that works on my trailer for towing
asked by: Liban
0
Expert Reply:
For a 7-way to 4-way adapter I recommend the Pollak 7 Pole to 4 Way Connector Adapter # PK12716. This adapter will plug into the 7-way connection at the back of your vehicle and allow you to then plug in the 4-way from your trailer to power your trailer's signal lights.
I have attached a video review for your reference.
expert reply by:
Robin H
0
Product Page this Question was Asked From
Adapter 7 Pole to 4 Pole with Tester and Cover
- Custom Fit Vehicle Wiring
- Wiring Adapters
- Universal Fit
- 7 Blade to 4 Flat
- Plug Only
- Hopkins
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Pollak 7 Pole to 4 Way Connector Adapter
- Search Results: karavan trailer parts
- Video: A Closer Look at the Pollak 7 Pole to 4 Way Connector Adapter
- Video: Pollak 7 Pole to 4 Way Connector Adapter Feature Review
- Q&A: Availability of 4-Way to 7-Way Adapter for 2024 Hyundai Tucson
- Article: Trailer Wiring Diagrams
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Holiday 2025 | RVers’ Favorite Gear & Road Picks
- Q&A: What Do I Need To Get A 7 Pole Connection On My 2024 Honda Pilot?
- Q&A: How Does Curt TriFlex NEXT Brake Controller Mount
- Q&A: My Vehicle has a 4-Pin Trailer Plug, but Trailer has 7-Pin Trailer Plug
- Q&A: What Hitch will Have More Clearance the Curt or Draw-Tite on My 2024 Kia EV6?
- Article: How to Adjust Your Trailer Brakes | The Ultimate Guide
- Q&A: 7-Pin Wiring Harness And Brake Controller For A 2024 Hyundai Santa Cruz
- Article: Parts Needed to Add Electric Drum Brakes to a Trailer
- Article: Brake Controller Installation: Starting from Scratch


