Demco
31K UMS Series
31K lbs
Max Trailer Weight
4.5K lbs
Max Pin Weight
DIY or Pro?
Installation
Availability
Where to Buy
About This Product
The Demco UMS 31K is built for maximum weight. Thirty-one thousand pounds of towing capacity puts this at the top of the fifth wheel hitch market. If your trailer is genuinely massive - large toy haulers, commercial applications - this handles it without breaking a sweat.
UMS means Universal Mounting System - works with multiple truck brands and mounting configurations. For trucks with factory pucks, it drops in like other puck hitches. The flexibility is useful if you change trucks or need to move the hitch around.
At 31K capacity, everything is beefed up. Heavier construction, larger components, designed for continuous heavy use. The tradeoff is more weight and higher cost, but if you need the capacity, you need it.
Demco makes this straightforward - secure jaw grip, height adjustment, solid construction. No unnecessary complexity to maintain.
Make sure you actually need 31K before buying this. Most fifth wheels are well under 20K. But for heavy applications where capacity matters, this delivers.
Compatibility
Fits These Trucks
RAM
| Model | Years | Bed Length | Bed Prep | |
|---|---|---|---|---|
| 2500 | 2013 - Present | Long Bed | Puck System | All options → |
| 3500 | 2013 - Present | Long Bed | Puck System | All options → |
Compare Options
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Got Questions?
Frequently Asked Questions
The 31K UMS Series is compatible with RAM trucks from 2013 to 2026. Use the fitment table above for the complete list of compatible year, model, and bed configurations.
The 31K UMS Series is rated for 31,000 lbs gross trailer weight (GTW) and 4,500 lbs vertical trailer weight (VTW — the pin weight your truck carries). Always verify your truck's tow rating before purchasing.
This hitch is considered DIY-friendly — most owners can install it with basic tools.
The 31K UMS Series is available from Demco directly. Use the "Where to Buy" buttons above for current pricing and availability.