How to Make Trailer Wiring Harness Easier to Unplug From Trailer
Updated 08/11/2014 | Published 08/09/2014 >
Products Featured in This Question
Question:
The wiring harness you sent me seems to work fine, but the harness plug to my trailer plug is extremely tight. I took me 20 minutes to get it partially in to test the circuits. Is there anything I can do to make it reasonably easy? I did use contact cleaner, but it seems to be the plastic surrounding the contacts that prohibits easy installation. Thank you
asked by: Tom L
Expert Reply:
I'd recommend using some dielectric grease, like part # 11755. Not only will the grease prohibit moisture from entering the connections and protect them from corrosion, it will make the connection easier to plug together or to separate.
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Hidden
- CURT
more information >
Featured Help Information
Instructions
Continue Researching
- Shop: Trailer Wiring
- Q&A: 4-Way Recommendation for a 2012 Nissan Titan with 7-Way
- Q&A: How To Get Both A 7-Way And 4-Pin Connector On A 2011 Nissan Frontier
- Video: Curt Fusion Ball Mount for 2" Hitches: The Breakdown
- Video: Let’s Check Out the Curt Class III Drawbar
- Search Results: terminal box
- Search Results: 7 blade to 4 pin adapter
- Search Results: hitch adapters
- Search Results: trailer hitch ball mount
- Search Results: 4 wire coiled
- Search Results: trailer safety chains
- Search Results: hopkins endurance
- Shop: Hitch Reducer 2" to 1-1/4" Trailer Hitch Receiver
- Shop: Trailer Hitch Adapter - 1-1/4" to 2" Hitch - 4-1/2" Drop/5" Rise - 6-1/2" L
- Shop: Curt Fusion Ball Mount for 2" Hitches - 2" Ball - 2-1/4" Rise - 7,500 lbs
- Shop: Hitch Adapter 1-1/4" to 2" Trailer Hitch Receiver with 5" Rise
- Shop: Curt Class III Drawbar - 2" Rise - 4" Drop - 13" Long - 7,500 lbs
- Q&A: What Gauge Wire is the Hopkins Endurance Easy-Pull Harness w/ 4-Pole Flat Connector?
- Shop: Pollak Replacement 7-Pole, RV-Style Trailer Connector Socket - Vehicle End
- Video: Breaking Down the Curt Fusion Ball Mount for 2" Hitches
- Shop: Dielectric Grease for Electrical Connectors, 2 oz.
- Q&A: Recommended Hitch for a 2024 Nissan Sentra SR
- Q&A: Which Safe-T-Plus Steering Stabilizer Is Best For 2025 F53 Chassis With V8 Engine?
- Q&A: Plug and Play Wiring Harness for Mazda CX-50 Hybrid
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Q&A: Is The Curt Hitch Or The Draw-Tite Hitch Better For A 2025 Mazda 3 Sedan?
- Article: Trailer Wiring Diagrams
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Article: How to Correct Noise from Exhaust Rattling Against a Trailer Hitch
- Article: How to Measure for Trailer Hitch Drop

