What Gauge Wire Is The 30 ft. Wishbone 4-Way Trailer Wiring Harness A30WB?
Updated 10/22/2025 | Published 03/29/2025 >
Question:
What gauge is your 4pinX by 30ft wish bone trailer wire
asked by: Lonnie K
0
Expert Reply:
Hello Lonnie, thanks for reaching out. The 30 ft. Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire # A30WB is 20 gauge wire. I walked out to our warehouse and looked at one to confirm this.
expert reply by:
Jesse M
0
Product Page this Question was Asked From
30 ft. Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 4 Flat
- Plug and Lead
- Optronics
more information >
Continue Researching
- Search Results: trailer lights
- Search Results: wishbone 4 way trailer wiring harness
- Search Results: boat trailer light kits
- Shop: 30 ft. Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire
- Shop: ONE LED Trailer Tail Light - 6 Function - Submersible - Square - Red Lens - Passenger Side
- Shop: LED Combination Tail Light Kit for Trailers under 80" Wide - Submersible - Driver and Passenger
- Search Results: trailer wiring
- Shop: 25 ft. Wishbone 4-Way Trailer Wiring Harness with 42" Ground Wire
- Shop: Kenda Karrier S-Trail ST145/R12 Radial Trailer Tire - Load Range D
- Shop: Kenda K353 Bias Trailer Tire - 5.30-12 - Load Range C
- Shop: D Washer for EZ Lube Spindles
- Shop: Trailer Wiring
- Video: Review of the Submersible, Under 80" Trailer Light Kit with 25' Wiring Harness
- Video: Feature Review LED Combination Tail Light Kit for Trailers under 80" Wide
- Search Results: wiring loom
- Search Results: wiring protection
- Search Results: accessories and parts
- Video: Review of TowSmart Wiring - Wire Loom 10 Foot - TS49QR
- Video: Complete Breakdown of the LED Combination Tail Light Kit for Trailers under 80" Wide
- Article: Trailer Lighting Requirements
- Video: The Low-Down on the BoatBuckle G2 Retractable, Ratchet Transom Tie-Downs
- Video: All You Need to Know About the LED Bullet Clearance or Side Marker Trailer Light with Grommet
- Video: Detailed Breakdown of the Optronics Wishbone 4-Way Trailer Wiring Harness
- Q&A: Troubleshooting A Non-Working Running Light On A Boat Trailer
- Q&A: What Gauge Wire does 4-Way Trailer Wiring Use
- Q&A: How to Wire Black and White Wires on Side Markers Using Wishbone Harness A35W42B
- Q&A: Left Side Trailer Lights Not Working With New LED Trailer Lights Installed
- Q&A: How To Install Thinline LED Trailer Tail Light As Center Brake Light
- Q&A: What Hardware is Needed To Install Titan Zinc-Plated Brake Actuator On Trailer Tongue
- Q&A: What Size and Grade Bolts Should be Used to Install Titan Model 60 Brake Actuator



Jesse M.
10/22/2025
Hey Lonnie, did the 20-gauge wishbone trailer wire end up working for your setup? Knowing how it performed could help others choosing the same harness.