How To Install Hopkins Adapter 4-Pole to 7-Pole and 4-Pole 37185
Updated 11/25/2019 | Published 11/24/2019 >
Products Featured in This Question
Question:
I thought this product comes with installation instructions but it either didnt have any or I might have misplaced it. Searched online to no avail. I need to install it on my 2003 Subaru Baja. Please help. Thanks.
asked by: Jeremy B
Expert Reply:
I am happy to help you install the Adapter 4-Pole to 7-Pole and 4-Pole part # 37185 on the 2003 Subaru Baja. If your trailer does not have brakes and you are using the plug as an adapter to adapt your 4-Way to a 7-way then all you would need to do is mount the plug and ground it to a clean bare metal surface of the vehicle's frame. Then plug your existing 4-Way into the pigtail that comes off the plug and your set.
if you are wiring in a brake controller you will need to extend the wires from the plug to vehicle's battery and to the brake controller. I have attached a diagram and a helpful article that shows how to wire in the plug with a brake controller. If all you have is the adapter and you need to wire in a brake controller you will also need Wiring Kit for 2, 4, 6, and 8 Brake Electric Trailer Brake Controllers part # 5506 and wire loom part # 7509-1.
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Trailer Hitch
- Shop: Brake Controller
- Article: My Trailer Hitch Doesn't Fit
- Shop: Trailer Wiring
- Shop: Curt Trailer Hitch Receiver - Custom Fit - Class IV - 2"
- Q&A: Comparing the Curt Spectrum Brake Controller to Redarc Tow-Pro Elite
- Q&A: What Gauge Wire Does The Curt USCAR Connector C56229 Use?
- Q&A: What is Needed to Activate 12 Volt Accessory Circuit of 7-Way
- Q&A: Parts Needed To Add Hopkins 7/4 Pole Connector To a 2020 Ford F-150 With Factory 4-Way
- Q&A: What Gauge Wire Does 12 Volt Accessory Circuit of 7-Way USCAR Usually Have
- Q&A: Recommended 7-Way and 4-Way Trailer Wiring Connector Compatible with Factory Harness
- Video: Curt Universal Wiring Harness for Vehicle-End Trailer Connectors Review
- Video: Curt T-Connector Vehicle Wiring Harness Installation - 2019 Ford Transit T350
- Video: Let’s Check Out the 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket
- Video: Curt Brake Controller C51515 Review
- Search Results: 7 pole plug
- Search Results: 51500
- Search Results: 7 way socket
- Search Results: inline fuse
- Search Results: fuse holder
- Search Results: 10 gauge wire
- Search Results: inline fuse holder
- Video: How to Install the Curt Trailer Hitch Receiver on a 2019 Ford Transit T350
- Shop: Spectro 12-Gauge ATC-ATO Fuse Holder - Qty 1
- Shop: ModuLite Installation Wiring Kit
- Shop: Wire Loom 1/4" Diameter, 10' Long
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Replacement In-Line Fuse Holder for Curt Wiring Harness - Qty 1
- Shop: Curt Universal Wiring Kit for Trailer Brake Controllers - 10 Gauge Wires
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)


