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. |
This lock is a cast-steel security device to fit 2-inch trailer king pins and deter unauthorized use or theft.
Affordable Pricing
Quality Products
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Fast Shipping
Ships from our warehouse
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Fitment Help
Real trailer-parts experts
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| ✓ | One lock and two keys included |
| ✓ | Durable zinc-plated finish |
| ✓ | 2.93" diameter |
| ✓ | Quick installation |
| ✓ | Height 2-1/4" |
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R&P Knowledge Hub
Fits standard 2-inch king pins on semi-trailers and fifth-wheel or gooseneck trailers.
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Not sure if this will fit your trailer?
Send us a message – our trailer-parts experts are standing by to help you get the right part the first time.
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Selected 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.”
Need help matching a part? Send us photos, part numbers and measurements. We can help narrow it down before you order.
