4-Way Trailer Wiring Harness for Mazda CX-5
Published 08/10/2026 >
Question:
@JamesonC My Mazda CX-5 is not going to tow or operate a trailer with brakes. I only bought this custom harness so I wouldn't have to cut into my stock wire harness. I'm only going to be operating trailer lights, turn signals , brake lights, flashers, etc with a four pin connector.
asked by: JOHN
0
Expert Reply:
Hey John, the Curt trailer wiring harness part # C45FV is designed to provide the taillight functions you mentioned for your trailer's wiring so it would be exactly what you are looking for. What trailer are you towing and what year is your CX-5?
expert reply by:
Jameson C
0
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
- Powered Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Hidden
- CURT
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Will The Curt Hitch C33MJ Fit A 2026 Mazda CX-50 Hybrid?
- Q&A: Plug and Play Wiring Harness for Mazda CX-50 Hybrid
- Q&A: Is There a Curt Trailer Hitch that Fits 2025 Mazda CX-50 Hybrid
- Q&A: Trailer Hitch Recommendation for 2026 Mazda CX-50 Hybrid
- Q&A: Trailer Hitch For 2025 Mazda CX-50 Hybrid
- Q&A: Recommended Hitch and Wiring Harness for a 2025 Mazda CX-5
- Q&A: 4-Flat Wiring Harness For 2026 Hyundai Tucson Hybrid
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: My Trailer Hitch Doesn't Fit
- Article: How to Measure for Trailer Hitch Drop
- Article: Anti-Rattle Devices
- Article: Types of Trailer Hitches: How and Why to Use Each
- Article: Routing the Power Wire for a Trailer Wiring Harness
- Article: Trailer Wiring Diagrams


John
8/10/2026
I think it's a 2023. The trailer wiring harness kit should indicate the year. I'll be towing a 14 ft aluminum boat with a 15 horsepower outboard motor.