Match the part number, measurements and connection points that apply to your trailer.
| Connection | Confirm ball or lunette size. |
|---|---|
| Mount | Verify tongue, channel and mounting pattern. |
| Capacity | Meet or exceed the required rating. |
The WD-100109-DAC is a hard-to-find straight tongue coupler engineered to bolt securely to a 3" wide square trailer tongue. Ideal for upgrading from a 2" ball coupler to the stronger 2-5/16" Class IV coupler. The Dacromet-coated finish offers outstanding corrosion resistance—perfect for boat, utility, or heavy-duty trailers exposed to the elements.
| Part Number | WD-100109-DAC |
| Coupler Type | Bolt-On Straight Tongue |
| Ball Size | 2-5/16" |
| Capacity | 8,500 lb (GTW) – SAE Class IV |
| Tongue Width | 3" square tube |
| Bolt Hole Spacing | 3" center to center |
| Overall Length | 11.5" |
| Ball Center ? Channel End | 9.75" |
| Channel Length | 5.5" |
| Latch Style | Low-profile quick latch |
| Finish | Dacromet anti-corrosion coating |
| Applications | Boat, utility, and equipment trailers with 3" straight tongues |
Why choose this coupler: Designed for durability and reliability in marine and heavy-duty trailering applications. The Dacromet coating offers long-term protection without sacrificing strength or fit.
See More of Our Trailer CouplersSelected from R&P customer feedback for Trailer Coupler products and related trailer service.
“Received swivel d-ring tie down 4 days after my wife ordered them , great price and came with backing plates. I received exactly what I paid for, thanks for the great service. Chris Davis , Mooresville NC”
“Would like to say thanks to everyone at R and P Carriages parts were delivered fast and with the very helpful staff, the right parts were sent the first time. Thanks Happy Holiday's.”
“I've ordered lots of trailer repair parts from them, always fast service, well packed, and the right parts. I highly recommend.”
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